Post any options questions you wanted to ask, but were afraid to ask. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge and experiences (YOU are invited to respond to questions posted here.)
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart) • Open Interest by ticker (optinistics)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • How Often Within Expected Move? Data Science and Implied Volatility (Michael Rechenthin, PhD - TastyTrade 2017) • A selected list of option chain & option data websites
Selected Trade Positions & Management • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Rolling Short (Credit) Spreads (Redtexture) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Covered Calls - Chris Butler - Project Option (20 minutes) • The 10 Most Common Mistakes Made by Covered Call Writers - Allen Ellman - Blue Caller Investor (8 minutes) • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Short calls and puts, and dividend risk (Redtexture) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations.
• CBOE Contract Specifications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF) • CBOE Exchange Rules (770+ pages, PDF) • NASDAQ Options Exchange Rules
Following week's Noob thread: Oct 21-27 2019
Previous weeks' Noob threads:
Oct 7-13 2019 Sept 30 - Oct 6 2019
Sept 23-29 2019 Sept 16-22 2019 Sept 09-15 2019 Sept 02-09 2019 Aug 26 - Sept 02 2019
Complete NOOB archive, 2018, and 2019

Post any options questions you wanted to ask, but were afraid to ask. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge and experiences (YOU are invited to respond to questions posted here.)
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart) • Open Interest by ticker (optinistics)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • How Often Within Expected Move? Data Science and Implied Volatility (Michael Rechenthin, PhD - TastyTrade 2017) • A selected list of option chain & option data websites
Selected Trade Positions & Management • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Rolling Short (Credit) Spreads (Redtexture) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Short calls and puts, and dividend risk (Redtexture) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations.
• CBOE Contract Specications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF) • CBOE Exchange Rules (770+ pages, PDF) • NASDAQ Options Exchange Rules
Following week's Noob thread: Oct 14-20 2019
Previous weeks' Noob threads:
Sept 30 - Oct 6 2019 Sept 23-29 2019 Sept 16-22 2019 Sept 09-15 2019 Sept 02-09 2019 Aug 26 - Sept 02 2019
Complete NOOB archive, 2018, and 2019

Post any options questions you wanted to ask, but were afraid to ask. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge and experiences (YOU are invited to respond to questions posted here.)
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart) • Open Interest by ticker (optinistics)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • How Often Within Expected Move? Data Science and Implied Volatility (Michael Rechenthin, PhD - TastyTrade 2017) • A selected list of option chain & option data websites
Selected Trade Positions & Management • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations.
• CBOE Contract Specications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF) • CBOE Exchange Rules (770+ pages, PDF) • NASDAQ Options Exchange Rules
Following week's Noob thread: Sept 30 - Oct 6 2019
Previous weeks' Noob threads: Sept 16-22 2019 Sept 09-15 2019 Sept 02-09 2019 Aug 26 - Sept 02 2019
Complete NOOB archive, 2018, and 2019

MAME 0.215

A wild MAME 0.215 appears! Yes, another month has gone by, and it’s time to check out what’s new. On the arcade side, Taito’s incredibly rare 4-screen top-down racer Super Dead Heat is now playable! Joining its ranks are other rarities, such as the European release of Capcom‘s 19XX: The War Against Destiny, and a bootleg of Jaleco’s P-47 – The Freedom Fighter using a different sound system. We’ve got three newly supported Game & Watch titles: Lion, Manhole, and Spitball Sparky, as well as the crystal screen version of Super Mario Bros. Two new JAKKS Pacific TV games, Capcom 3-in-1 and Disney Princesses, have also been added.
Other improvements include several more protection microcontrollers dumped and emulated, the NCR Decision Mate V working (now including hard disk controllers), graphics fixes for the 68k-based SNK and Alpha Denshi games, and some graphical updates to the Super A'Can driver.
We’ve updated bgfx, adding preliminary Vulkan support. There are some issues we’re aware of, so if you run into issues, check our GitHub issues page to see if it’s already known, and report it if it isn’t. We’ve also improved support for building and running on Linux systems without X11.
You can get the source and Windows binary packages from the download page.

MAMETesters Bugs Fixed

• 04531: [Sound] (segas32.cpp) f1en: Engine noise loops/resets. (Tafoid)
• 07025: [Graphics] (model1.cpp) vr: Graphical glitches. (O. Galibert)
• 07026: [Gameplay] (model1.cpp) vr: Gameplay calculation and physics issues. (O. Galibert)
• 07372: [Crash/Freeze] X11 Lightgun input module crashes if X11 display is not available. (George McMullen)
• 07437: [Gameplay] (x68k.cpp) x68000 [nemesis]: Background tiles appear in foreground in Nemesis 90 Kai. (Carl)
• 07438: [Graphics] (m72.cpp) imgfightj, mrheli, nspiritj: “For use in Japan” messages are not displayed correctly. (Angelo Salese)
• 07442: [DIP/Input] (gaelco.cpp) biomtoy, biomtoya, biomtoyb, biomtoyc, bioplayc: Lives DIP switch mis-labelled. (girosintornillos)
• 07444: [DIP/Input] (seta.cpp) blandia, blandiap: Lives DIP switch mis-labelled. (girosintornillos)
• 07445: [DIP/Input] (model2.cpp) sgt24h, overrevb: Accelerator and brake pedals are reversed. (VasiliyFamiliya)
• 07447: [Graphics] (cninja.cpp) cninja and clones: Incorrect graphical priorities between level 4 bosses. (Ivan Vangelista)
• 07448: [Gameplay] (taito_z.cpp) sci, scia, scij, scin, sciu: Shifting gears activates turbo. (girosintornillos)
• 07452: [Crash/Freeze] (eprom.cpp) eprom, eprom2: The control test will not load. (AJR)
• 07454: [Plugins] (dooyong.cpp) flytiger: Use of high score plugin causes incorrect attract mode behaviour. (Carl)
• 07456: [Crash/Freeze] (segas16b.cpp) eswat: Emulator crashes with segmentation fault. (smf)
• 07457: [DIP/Input] (m107.cpp) dsoccr94: Coin 3 and coin 4 inputs are mapped incorrectly. (MetalGod)
• 07463: [DIP/Input] (mystwarr.cpp) metamrph and clones, viostorm and clones: Coin 3 and 4 inputs are not connected. (Zach S.)
• 07465: [Crash/Freeze] (interpro.cpp) ip2000: Emulator crashes if mouse is moved during startup. (Patrick Mackinlay)
• 07469: [Graphics] (vboy.cpp) vboy: Sprite elements are cut off on the right. (Robbbert)

New working machines

• Capcom 3-in-1 (1942, Commando, Ghosts'n Goblins) (JAKKS Pacific TV Game, Game-Key Ready) (29 MAR 2005 B) [Sean Riddle, David Haywood, anonymous]
• China H Computer Company H-01B [zzemu]
• Disney Princesses (JAKKS Pacific TV Game, Game-Key Ready) [Sean Riddle, David Haywood, anonymous]
• Game & Watch: Lion [algestam, Mr. Do, Sean Riddle]
• Game & Watch: Manhole (gold) [algestam, Mr. Do, Sean Riddle]
• Game & Watch: Spitball Sparky [algestam, Mr Jiggles the Christmas Man]
• Motorola MEK6800D1 [68bit]
• Motorola Micro Chroma 68 [68bit]
• Super Dead Heat [Phil Bennett, David Haywood]

New working clones

• 19XX: The War Against Destiny (Euro 960104) [redsupra, smf]
• Beastorizer (USA, Jun 21 1997) [jordigahan, ClawGrip]
• Bomberman (Version 6.6) [caius, The Dumping Union]
• Buggy Boy/Speed Buggy (cockpit, rev. B) [pacman70, Asayuki]
• Dragon Breed (Japan, M72 PCB version) [Jorge Silva]
• Game & Watch: Super Mario Bros. (crystal screen) [algestam, Mr Jiggles the Christmas Man]
• Hard Head (bootleg, set 3) [jordigahan, Heckler, ClawGrip]
• Hegener + Glaser Mephisto MM V (prototype) [CB-Emu]
• Megatouch III Turnier Edition (9255-30-50 R0F, Bi-Lingual GEENG version) [Kevin Eshbach, Brian Troha, The Dumping Union]
• P-47 - The Freedom Fighter (World, bootleg) [jordigahan, Heckler, ClawGrip]

Machines promoted to working

• Fidelity Electronics Phantom Chess Challenger [Sandro Ronco]
• NCR Decision Mate V [Sandro Ronco, rfka01]
• Pacific Educational Systems VPU-01 Speech box [Robbbert]
• Radio Shack TRS-80 DT-1 [Robbbert]

New machines marked as NOT_WORKING

• Advance Bright Ltd Ping Pong / Table Tennis / Super Ping Pong (PP1100, ABL TV Game) [David Haywood, Morten Shearman Kirkegaard, Peter Wilhelmsen]
• Conny TV Virtual Tennis [David Haywood, Morten Shearman Kirkegaard, Peter Wilhelmsen]
• El Dorado [TeamEurope]
• The Flintstones (LX-3) [PinMAME]
• Care Bears TV Games (JAKKS Pacific TV Game, Game-Key Ready) [Sean Riddle, David Haywood, anonymous]
• Kursaal Darts [jordigahan, ClawGrip]
• Litek Information Systems LMS46-V9 [Don Maslin Archive, AJR]
• Research Inc. Teleray Model 10 [Bitsavers]
• Rollamatic 5-Line Special (Barcrest) (MPU3) [Darran, The Dumping Union]
• TaiKee Rockstar Guitar / Guitar Rock (PAL) [David Haywood, Morten Shearman Kirkegaard, Peter Wilhelmsen]
• Terrific Lake [PinMAME]
• Top Sound (French) [PinMAME]
• Play Vision Who Wants to Be a Millionaire (Play Vision, Plug and Play, UK) [David Haywood, Morten Shearman Kirkegaard, Peter Wilhelmsen]
• Vortex (Island Design) [unknown]

New clones marked as NOT_WORKING

• 386 motherboards using a OPTi 82C495SLC chipset [rfka01]
• 386 motherboards using the ALi M1419 chipset [rfka01]
• 386 motherboards using the CS8230 chipset [rfka01]
• 386 motherboards using the MX83C305(A)(FC)/MX83C05(A)(FC) chipset [rfka01]
• 386 motherboards using the OPTi 82C381 chipset [rfka01]
• 386 motherboards using the OPTi 82C391 chipset [rfka01]
• 386 motherboards using the SiS Rabbit chipset [rfka01]
• 386 motherboards using the UMC UM82C481AF chipset [rfka01]
• 386 motherboards using the UMC UM82C491F + UM82C493F chipset or BIOTEQ equivalents [rfka01]
• 386 motherboard using the UMC UM82C491F chipset [rfka01]
• 386sx motherboards using the ALi M1217 chipset [rfka01]
• 386sx motherboards using the OPTi 82C283 chipset [rfka01]
• 386sx motherboards using the OPTi 82C291 chipset [rfka01]
• 386sx motherboards using the SCAMPSX chipset [rfka01]
• 486 motherboards using the ALi 1487/1489 chipset [rfka01]
• 486 motherboards using the OPTi OPTi 82C392, 82C493 chipset [rfka01]
• 486 motherboards using the SiS 85C471/85C407 chipset [rfka01]
• 486 motherboards using the UMC UM8498F, UM8496F chipset [rfka01]
• 486 motherboards using the UMC UM8886/UM8881 chipset [rfka01]
• Abit AB-PB4 [rfka01]
• Abit AB-PW4 [rfka01]
• Alaris Cougar [rfka01]
• Alaris RYC LEOPARD LX [rfka01]
• Alaris Tornado 2 [rfka01]
• AMI Mark V Baby Screamer [rfka01]
• ANIX CH-386S-16/20/25G [rfka01]
• Aquarius System (ASI) MB-4D33/50NR [rfka01]
• Asus ISA-486SV2 [rfka01]
• AUVA TAM/25-P2 M31720P [rfka01]
• Bank Robbery (Ver. 1.23) [Siftware]
• Biostar MB-1340UCQ-B [rfka01]
• Chaintech 333SC [rfka01]
• Chaintech 486SLE M106 4SLE-Z1 [rfka01]
• Chaintech ELT-286B-160B(E) [rfka01]
• Chicony CH-491E [rfka01]
• Daewoo AL486V-D Rev:1.1 [rfka01]
• Derby Owners Club World Edition (Rev A) [Fluffy]
• Diamond Flower, Inc. (DFI) 486-CCV [rfka01]
• DTK Computer PPM-3333P [rfka01]
• DTK PKM-0038S aka Gemlight GMB-486SG [rfka01]
• Elitegroup Computer Systems FX-3000 REV1.0 [rfka01]
• Elitegroup ELT-386SX-160BE [rfka01]
• Elitegroup UC4913 REV:1.1 [rfka01]
• Elitegroup UC4915 A AIO [rfka01]
• Elitegroup UM486/UM486sx [rfka01]
• Elitegroup UM486V-AIO [rfka01]
• First International Computer 4386-VC-HD [rfka01]
• First International Computer 4386-VC-V [rfka01]
• First International Computer 486-GIO-VT2 [rfka01]
• Fujitsu FM-Towns (Model 1 / 2) [r09]
• GENOA TurboExpress 486 VL [rfka01]
• GES 9051N-386C VER -0.01 [rfka01]
• Gigabyte GA-486VF [rfka01]
• Gigabyte GA-486VS [rfka01]
• LuckyStar LS-486E Rev:C [rfka01]
• Micro-Express Inc. Forex 386 Cache [rfka01]
• MORSE KP 386SX V2.21 [rfka01]
• MSI MS-4125 [rfka01]
• MSI MS-4138 [rfka01]
• MSI MS-4144 [rfka01]
• Octek Hawk [rfka01]
• Octek Hippo COM [rfka01]
• Octek Hippo DCA2 [rfka01]
• Octek Hippo VL+ [rfka01]
• Octek Panther II [rfka01]
• Olivetti M21 [rfka01]
• OPTi OPTi 386WB VER.1.0 [rfka01]
• PC-Chips M216 [rfka01]
• PC-Chips M396F [rfka01]
• PC-Chips M912 [rfka01]
• PC-Chips M915i [rfka01]
• Peacock 386sx Ver. 2.0 motherboard SCsxAIO [rfka01]
• Peacock PCK 486 DX [rfka01]
• Philips PCD204 (PCD200 series) [rfka01]
• Pine PT-319A [rfka01]
• Pine Technology PT-430 [rfka01]
• Pine Technology PT-432b aka SR-M401-A [rfka01]
• PROTECH PM486PU-S7 [rfka01]
• QDI PX486P3 [rfka01]
• QDI V4P895P3/SMT V5.0 [rfka01]
• QD-U386DX VER 1.0 [rfka01]
• Sanyo MBC-18NB [rfka01]
• See-Thru Sto486Wb aka AUVA Cam-33-P2 [rfka01]
• Shuttle 386SX REV 2.0A [rfka01]
• Shuttle Computer International HOT-433 [rfka01]
• TD60C [rfka01]
• TD70A and TD70AN [rfka01]
• TD70N [rfka01]
• Termtek TK-635 [nextvolume, Dirk Best]
• UNICHIP 386W 367C REV 1.0 [rfka01]
• UNICHIP 486 WB 4407 REV 1.0 [rfka01]
• unknown 286 AT clones (HT18/C chipset) [rfka01]
• Via 4386 VIO / Highscreen universal board [rfka01]
• Vintage Sprite SM 486-50USC [rfka01]
• Vs. Super Mario Bros. (bootleg with Z80, set 3) [jordigahan, ClawGrip]
• ZIDA Tomato board 4DPS [rfka01]

New working software list additions

• apple2_flop_clcracked: Balancing Act (cleanly cracked), Fractions: Basic Skills (cleanly cracked), Fractions: Subtraction (cleanly cracked), The Haunted Palace (cleanly cracked), Statistics (Version 3.3) (cleanly cracked), Whole Numbers: Multiplication (cleanly cracked), The World's Greatest Baseball Game (Enhanced Version) (cleanly cracked) [4am, Firehawke]
• apple2_flop_orig: Alibi, American Government (Micro Learningware), Apple Stellar Invaders, Battlefront, Beach Landing, Carriers at War, The Coveted Mirror, Crime Stopper, Decisive Battles of the American Civil War: Volume Three, Decisive Battles of the American Civil War: Volume Two, Decisive Battles of the Civil War: Volume One, Dogfight II, Europe Ablaze, Galactic Wars, Gauntlet, Ghostbusters, Go (Hayden), Guderian, Halls of Montezuma, The Haunted Palace, I, Damiano, Leisure Suit Larry in The Land of The Lounge Lizards, The Mask of the Sun (Version 2.1), MacArthur's War, Muppet Learning Keys: The Muppet Discovery Disk, Oil Rig, Panzer Battles, Pulsar ][, Questprobe featuring Spider-Man, Reach For The Stars (Version 1.0), Reach For The Stars (Version 2.0), Reach For The Stars (Version 3.0), Reversal, Russia, Sherlock Holmes in Another Bow, Simultaneous Linear Equations, Space Kadet, Tapper, Ulysses and the Golden Fleece, Vaults of Zurich, Winter Games [4am, Firehawke]
• fmtowns_cd: CG Syndicate Vol. 1 - Lisa Northpoint, CubicSketch V1.1 L10, New Horizon CD Learning System II - English Course 1, Shanghai, Space Museum, TownsSOUND V1.1 L20, Z's Triphony DigitalCraft Towns [redump.org, r09]
• hp9825b_rom: 9885/9895 ROM for 9825, 9885 ROM for 9825, Matrix ROM for 9825, SSS mass storage ROM [F.Ulivi]
• ibm5150: Action Service (Smash16 release) (3.5"), International Karate, Italy '90 Soccer, Joe Blade (Smash16 release), Out Run (Kixx release), Starflight [ArcadeShadow]
• ibm5170: Corridor 7: Alien Invasion, Links - The Challenge of Golf (5.25"HD) [ArcadeShadow]
• midi_flop: Dansbandshits nr 3 (Sweden) [FakeShemp]
• vz_snap: Ace of Aces, Adventure, Airstrip, Arkaball v1, Arkaball v2, Arrgh, Assembly Language for Beginners, Asteroids, Attack of the Killer Tomatoes, Backgammon, Backgammon Instructions, Battleships v1, Battleships v2, Bezerk, Binary Tape Copier v1.0, Bomber, Breakproof File Copier, Bust Out, Camel, Card Andy, Casino Roulette v1, Casino Roulette v2, Catch, Challenger, Chasm Capers, Check Disk, Checkers, Chess, Circus, Compgammon, Computer Learjet, Concentration, Cos Res, Craps, Crash, Curses, Dawn Patrol, Decoy v1, Decoy v2, Defence Penetrator, Dig Out, Disassembler v2, Disassemmbler v1, Disk Copier, Disk Copy V2.0, Disk Editor-Assembler V6.0X, Disk Menu, Disk Ops 4, Disk Sector Editor v1, Disk Sector Editor v2, Dog Fight, Dracula's Castle, The Dynasty Derby, Editor-Assembler V.1.2, Editor-Assembler V.1.2B, Electric Tunnel, Electronic Blackjack, Extended DOS V1.3, Extended VZ Basic V2.5, Factory, Fastdisk V1.0, Fastdisk V1.1, Fastdisk V1.2, Fastdisk V1.2 demo, Filesearch 2.0, Filesearch V2.0, Formula One v1, Formula One v2, Formula Uno, Frog, Galactic Invasion, Galactic Raiders, Galactic Trade, Galaxon, Game Instructions, Ghost Blasters, Ghost Hunter (hacked), Ghost Hunter instructions, Ghost Hunter v1, Ghost Hunter v2, Golf, Grand Prix, Grave Digger, Gunfight, Hamburger Sam, Hangman v1, Hangman v3, Hangman v4, Hex Maths, Hex Utilities, The High Mountains, High Scores, Hoppy v1, Hoppy v2, Hunt the Wumpus, Instructions for Asteroid Dodge, Instructions for Invaders, Instructions for Ladder Challenge, Invaders v1, Invaders v2, Inventory, Kamikaze Invaders, Key Hunt, Knights and Dragons, Ladder Challenge, Laser, Laser Pong, Lunar Lander, Mad Max VI, Madhouse, Mars Patrol, Mastermind, Match Box, Match Box Instructions, Maths Armada, Maze Generator, Meat Pies, Melbourne Cup, Meteor, Missile Attack, Missile Command v1, Missile Command v2, Missing Number, Moon, Moon Lander, Moonlander, Moving Targets, Number Sequence, Number Slide, Othello, Othello Instructions, Painter v1, Painter v2, Painter v3, Panik, Panik Instructions, Penguin, Planet Patrol, Poker Machine, Punch v1, Punch v2, Pursuit, The Quest, The Return of Defense Command, Rocket Command, Shootout, Space, Space Ram, Space Station Defender, Space Vice, Star Blaster, Submarine, Super Snake, Super Snake Trapper, The Ten Commandments, Tennis v1, Tennis v2, Tone Generator, Totaliser Derby, Tower, Triffids 2040 AD, Twisting Road, VZ 200-300 Diskette Monitor, VZ Panik, VZ cave, VZ-200 Cup, Vzetris, Worm, Write a Story [Robbbert]

Software list items promoted to working

• dmv: MS-DOS v2.11 HD, MS-DOS v2.11 HD (Alt 2), MS-DOS v2.11 HD (Alt 3), MS-DOS v2.11 HD (Alt), Z-Com v2.0 HD [Sandro Ronco, rfka01]

New NOT_WORKING software list additions

• ekara_japan_a: A-3 Pichi Pichi Pitch vol.3 (Japan) [David Haywood, Sean Riddle]
• evio: Anime Mix 1, Chisako Takashima Selection, evio Challenge!, evio Selection 02, evio Selection 03, Hard Soul 1, I Love Classic 1, Pure Kiss 1 [David Haywood, Peter Wilhelmsen, ShouTime, Sean Riddle]
• fmtowns_cd:
  • Debian GNU/Linux 1.3.1 with Debian-JP Packages, Debian GNU/Linux 2.0r2 with Hamm-JP [akira_2020, Tokugawa Corporate Forums, r09]
  • Air Warrior V1.2, Fujitsu Habitat V2.1L10, Hyper Media NHK Zoku Kiso Eigo - Dai-3-kan, Nobunaga no Yabou - Sengoku Gun'yuuden, Taito Chase H.Q. (Demo), TownsFullcolor V2.1 L10, Video Koubou V1.4 L10 [redump.org, r09]
• leapfrog_ltleappad_cart: Baby's First Words (USA), Disney Pooh Loves You! (USA), If I were... (USA) [ClawGrip, TeamEurope]

Source Changes

• ins8250: Only clear transmitter holding register empty interrupt on reading IIR if it’s the highest priority pending interrupt. [68bit]
  
• bus/ss50/mps2.cpp: Connected RS-232 control lines. [68bit]
  
• machine/ie15.cpp: Cleaned up RS-232 interface. [68bit]
  
• bus/rs232: Delay pushing initial line state to reset time. [68bit]
  
• bus/rs232/null_modem.cpp: Added configuration option for DTR flow control. [68bit]
  
• tv990.cpp: Improved cursor position calculation. [68bit]
  
• tilemap.cpp: Improved assert conditions, fixing tilemap viewer, mtrain and strain in debug builds. [AJR]
  
• spbactn.cpp: Use raw screen timing parameters for spbactn. [AJR]
  
• laz_aftrshok.cpp: Added aftrshok DIP switch documentation from the manual. [AJR]
  
• ELAN RISC II updates: [AJR]
  
  • Identified CPU type used by vreadere as ePG3231.
  • Added preliminary port I/O handlers and callbacks.
  • Added stub handlers and state variables for interrupt controller, timers, synthesizer, UART and SPI.
  • Fixed TBRD addressing of external data memory.
  • Fixed calculation of carry flag for normal adder operations.
  • Implemented multi-byte carry/borrow for applicable registers.
  • Implemented signed multiplication option.
  • Added internal stack buffer for saving PCH during calls/interrupts.
• alpha68k_n.cpp: Replaced sstingry protection simulation with microcontroller emulation. [AJR]
  
• sed1330: Implemented character drawing from external ROM, fixed display on/off command, and fixed screen area definition. [AJR]
  
• tlcs90: Separated TMP90840 and TMP90844 disassemblers. [AJR]
  
• z180 updates: [AJR]
  
  • Split Z180 device into subtypes; HD647180X now implements internal PROM, RAM and parallel ports.
  • Added internal clock dividers adjust CPU clocks in many drivers to compensate.
  • Reduced logical address width to 16 bits.
• h8: Made debug PC adjustment and breakpoints actually work. [AJR]
  
• subsino2.cpp: Added save state support and cleaned up code a little. [AJR]
  
• gaelco.cpp: Adjusted bigkarnk YM3812 clock so pitch matches reference recording. [AJR]
  
• stadhero.cpp: Made stadhero stage music selection and various other things more random. [AJR]
  
• acorn_vib: Made ACIA transmit/receive clocks selectable using MC14411. [AJR]
  
• hitme.cpp: Renamed m21 to mirco21 to resolve name collision. [AJR]
  
• Emulated ADC0804 and added device to various drivers (fixes “WRONG CONTROL IO” in citybomb service mode). [AJR]
  
• tmnt.cpp: Added glfgreat analog controls and ADC, and removed spurious fourth button. [AJR]
  
• megasys1.cpp: Added p47b ADPCM sample playback using additional Z80. [AJR]
  
• cps1.cpp, segas16b.cpp: Fixed unsafe bitmap usage in video update routines that could cause memory corruption. [AJR]
  
• bus/isa: Added Music Quest PC MIDI Card. [AJR, VOGONS Vintage Driver Library]
  
• rd100.cpp: Added preliminary keyboard inputs. [AJR]
  
• Separated V50/V53 common peripherals and former device from V33 base, and add V40 type for future use. [AJR]
  
• m72.cpp: Fixed sample-related communications on 8751-protected games. [AJR]
  
• Added Fujitsu FR disassembler and skeleton CPU device. [AJR]
  
• hvyunit.cpp: Fix hvyunit coin counters. [AJR]
  
• hh_sm510.cpp: Re-scanned gnw_mmouse display. [algestam]
  
• snes.cpp: Change screen resolution for pseudo-hires mode, and run HDMA at vertical position zero. [AmatCoder]
  
  • Fixes graphics in Judge Dredd and Vortex.
• alpha68k.cpp updates: [Angelo Salese]
  
  • Added opaque tile support for V board (fixes title screen clipping effects for Sky Adventure).
  • Removed hack for priest priority in Sky Adventure level 1 as this is an original game bug.
  • Merged sprite drawing code with SNK 68k sprite device.
  • Simulated screen banking for Gold Medalist starter pistol shot on dash events.
  • Fixed missing status bar and “start/hurry up” graphics for player 1 in Gold Medalist.
  • Removed unemulated protection flag from Gold Medalist clones.
• alpha68k.cpp, snk68.cpp: Moved palette code to a common device using the same scheme as the Neo Geo palette. [Angelo Salese]
  
  • Produces more accurate colors, especially visible on dithered backgrounds.
• markham.cpp: Improved Strength & Skill master interrupt firing and row scroll (fixes missing sprites regression in stages 2 and 3). [Angelo Salese]
  
• Synchronized with upstream GENie, bx, bgfx and bimg. [Belegdol]
  
• Fixed Visual Studio 2019 build issues. [Belegdol]
  
• Switched Travis CI build to Xcode 11. [Belegdol]
  
• Build bgfx with OpenGL ES rather than OpenGL when building without X11 on Linux and BSD. [Belegdol]
  
• ay8910.cpp: Converted Sunsoft 5B 6630B sound hardware to a device. [cam900]
  
• nmk16spr.cpp: Converted NMK 16-bit sprite hardware to a device. [cam900]
  
  • Implemented priority drawing and sprite limits, and added notes.
  • Adapted nmk16.cpp and powerins.cpp to use new device.
• powerins.cpp: Derived clocks from crystals present on boards and added raw screen timing parameters. [cam900]
  
• ninjaw.cpp, warriorb.cpp: Added subwoofer and corrected sound routing. [cam900]
  
• mos6581.cpp: Added save state support. [cam900]
  
• sid.cpp, sidenvel.cpp, sidvoice.cpp: Improved save state support and cleaned up code. [cam900]
  
• ymf278b.cpp: Implemented FM DO2 output scaling. [cam900]
  
• ymf262.cpp: Added notes. [cam900]
  
• tmap038.cpp: Converted 038 tilemap generator chip to a device. [cam900]
  
  • Adapted cave.cpp and mcatadv.cpp to use the new device, and cleaned up code.
• mcatadv.cpp: Fixed tilemap flicker when debugging functionality is enabled. [cam900]
  
• argus.cpp: Fix repeated spelling error in comments. [cam900]
  
• megasys1.cpp: Fixed missing semicolon. [Christian Groessler]
  
• gamate.cpp: Made initial RAM fill better match hardware power-up state. [Christian Groessler]
  
• audio/irem.cpp: Fixed a number of kidniki audio issues. [Couriersud]
  
  • Added jumper J4 as a compile-time option, fixed a number of resistor and capacitor values, and fixed a barrier.
• Netlist system updates: [Couriersud]
  
  • Added support for line markers to the netlist preprocessor and parser.
  • Added include processing to the netlist preprocessor, and reorganised plib code so this can be better utilised.
  • Simplified netlist library code and improved performance.
  • Moved netlists out of driver sources and organised netlists according to functionality.
  • Added an extended validation mode to nltool for identifying certain kinds of issues.
  • Removed some hints from pong now that performance has improved..
• chelnov.cpp: Added microcontroller dump for chelnov and hooked it up, replacing simulation. [Dirk Best, TeamEurope, Brian Troha]
  
  • Programs for other regions created by patching the dumped World region microcontroller program.
• firetrap.cpp: Add microcontroller dump for firetrap and hook it up, replacing simulation. [Dirk Best, TeamEurope, Brian Troha]
  
  • Program for US region created by patching the dumped Japan region microcontroller program.
• i8251.cpp, pit8253.cpp, isa/ega.cpp, isa/mda.cpp: Modernized debug logging. [Edström]
  
• m6801.cpp: Added more logging and reduced unnecessary serial transmit output updates. [Edström]
  
• mc6845.cpp: Added more logging and reduced warning spam at startup when register values are inconsistent. [Edström]
  
• isa/mda.cpp: Added Ericsson Monochrome HR Graphics Board 1070. [Edström]
  
• Moved Ericsson PC from pc.cpp to new source file eispc.cpp and added serial keyboard. [Edström]
  
• hp9825.cpp: Added support for external ROM cartridges to HP9825B and HP9825T. [F.Ulivi]
  
• hp9885.cpp: Added missing postamble when writing sectors on disk. [F.Ulivi]
  
• Lua engine updates: [feos]
  
  • Added callback after a batch of sound samples are generated.
  • Greatly reduced compiler memory usage by adding user type members after construction.
• Always re-generate version.cpp if top-level makefile changes. [feos]
  
• Start AVI recording after devices have been started so initial screen refresh rate is used rather than fixed 60 Hz. [feos]
  
• goldstar.cpp: Decrypted pkrmast and its clone. [Ioannis Bampoulas, Ivan Vangelista]
  
• goldstar.cpp: Decrypted super972. [Ivan Vangelista]
  
• squale.cpp: Connected the EF9365 video controller IRQ output to the 6809 IRQ input for Apollo 7 Squale. [Jean-François DEL NERO]
  
• wd_fdc.cpp: Improved interrupt request reset logic based on WD1772 and VG93 (1793 clone) decaps. [MetalliC]
  
• Fixed clang compilation error on targets where stream size is larger than long int. [Nathan Woods]
  
• model1.cpp: Fixed issues with TGP interface emulation. [O. Galibert]
  
• emumem_het.cpp, emumem_heu.cpp: Hold additional reference for in-flight handlers (fixes MT07456). [O. Galibert, smf]
  
• apple3.cpp: Corrected number row key layout (fixes pasting and natural keyboard mode). [pahandav]
  
• ppcdrc.cpp, sh2.cpp, sh4.cpp: Fixed issues causing fast RAM accesses to bypass the debugger. [Phil Bennett]
  
• tms34020: Implement SETCDP and CLIP opcodes. [Priit Laes]
  
• apple2gs.cpp: Allow slot interrupt requests to be dispatched. [R. Belmont, Peter Ferrie]
  
• apple3.cpp: Suppress $C800 switching on debugger accesses. [R. Belmont, Rob Justice]
  
• osd/sdl: Added support for RRGGBB00 pixel format used by ARM Mali GPUs. [R. Belmont]
  
• fmtowns_cd.xml updates: [r09]
  
  • Replaced a number of entries with better dumps from the redump.org database.
  • Added parent/clone relationships for Windows 3.1 revisions.
  • Updated the list of missing dumps.
• fmtowns.cpp updates: [r09]
  
  • Removed SCSI controller from first-generation models and the Marty as these machines lack it.
  • Corrected CPU types for FM-Towns II SJ and FM-Towns II MX.
  • Corrected user-selectable RAM size options.
  • Mapped packed video RAM at 0x00b00000 for 386SX-based models (fixes graphical issues on FM-Towns II UX and FM-Towns Marty).
  • Configured FM-Towns Marty with one floppy drive and 2 MB of RAM.
  • Fixed crashes when 1 MB ROM or a single floppy drive is selected.
  • Dumped and added ROMs from a first-generation FM-Towns Model 2.
• hcd62121: Implemented exclusive OR with indirect addressing. [Ricardo Barreira]
  
  • Used by cfx9850 for zoom menu in graph mode.
• cfx9850.cpp: Corrected RAM size to 32 kB and added mirroring. [Ricardo Barreira]
  
• super80.cpp, super80_cass.xml: Fine-tuned software compatibility flags. [Robbbert]
  
• Removed unnecessary offset attribute from some software lists. [Robbbert]
  
• trs80dt1: Added RS-232 and Centronics parallel ports, and promoted to working. [Robbbert]
  
• pes.cpp: Modernised and cleaned up code, and fixed regressions caused by years of neglect. [Robbbert]
  
• mkit09.cpp: Improved inputs for mkit09a and got it to start and run. [Robbbert]
  
• Added covers to images that can be displayed in system selection UI. [Robbbert]
  
• imagedev/avivideo.cpp: Added an image device to provide looping uncompressed AVI frames as input. [Ryan Holtz]
  
• vino.cpp: Adapted to support both avivideo_image_device and picture_image_device. [Ryan Holtz]
  
• cdi.cpp: Switched SERVO and SLAVE microcontrollers to use the correct device type with internal memory maps. [Ryan Holtz]
  
• snes.cpp updates:
  
  • Added clock divider for original Super FX chip (fixes game speed in Star Fox, Stunt Race FX, Vortex, and others). [Ryan Holtz]
  • Corrected video RAM size to 64 kB (fixes graphics in Yoshi’s Island and possibly others). [Ryan Holtz, byuu]
  • Fixed PPU background layer drawing based on higan ppu-fast. [Ryan Holtz, byuu]
  • Adjusted horizontal blanking timing interval to the most common case (fixes off-by-one parallax in Yoshi’s Island). [byuu]
• supracan.cpp updates: [Ryan Holtz]
  
  • Implemented sprite-to-sprite masking.
  • Removed sound CPU boot hack and fixed sound CPU reset/halt behavior.
  • Implemented controller input shift register protocol and removed non-existent parallel inputs in main CPU memory space.
  • Removed non-existent player 3 and player 4 inputs.
  • Added save status support and converted logging to use logmacro.h.
• bgfx: Do texture format conversion via a full-screen GPU pass. [Ryan Holtz]
  
• screen: Added support for changing horizontal width mid-frame and hooked it up to the SNES driver. [Ryan Holtz]
  
  • Fixes dkongcu intro and others.
• bus/dmv: Added K012 and C3282 hard disk interfaces. [Sandro Ronco]
  
• netlist: Fixed issue with 1×1 matrix (affected gamemachine.cpp and breakout.cpp systems). [Tafoid]
  
• Converted osd_printf_* family of functions to use util::string_format semantics. [Vas Crabb]
  
• minimaws: Added support for identifying ROM/disk dumps on command line or through web UI. [Vas Crabb]
  
• srcclean: Improved handling of some kinds of C preprocessor abuse. [Vas Crabb]
  
• Improved performance of makedep.py, reducing the time taken to bootstrap a SOURCES= build. [Vas Crabb]
  
• apple2_flop_orig.xml: Replaced Drol with new working dump. [4am, Firehawke]
  
• m72.cpp Dumped 8751 microcontrollers for airduelm72 and dbreedm72j, replacing simulation. [Caius, Jorge Silva, TeamEurope, The Dumping Union]
  
• wardner.cpp: Corrected ROM labels for the Wardner set, and added PCB locations to all sets. [Brian Troha]
  
• playch10.cpp: Corrected BIOS PPU ROM loading. [brizzo]
  
• rbmk.cpp: Decapped and dumped AT89C51 microcontroller for rbspm. [Caps0ff, EdHunter]
  
• lucky37.cpp: Decapped and dumped microcontrollers for lucky21, lucky21d and lucky37. [Caps0ff, TeamEurope]
  
• changyu.cpp: Decapped and dumped microcontroller for changyu2. [Caps0ff, TeamEurope]
  
• lwings.cpp: Measured CPU clock and video timings on an original sectionz PCB. [Corrado Tomaselli]
  
• exedexes.cpp: Measured CPU clocks and video timings, and verified sound chip clocks. [Corrado Tomaselli]
  
• sidepckt.cpp: Corrected ROM labels and added PCB locations. [Corrado Tomaselli, Brian Troha, The Dumping Union]
  
• nmk16.cpp: Re-dumped the tile graphics ROM for Macross II (Korea). [Darksoft, hammy]
  
• chihiro.cpp, naomi.cpp: Improved software documentation, particularly title consistency. [f205v]
  
• Added MIDI floppy software list to some IBM PC drivers. [FakeShemp]
  
• bus/ata: Added skeleton PleXCombo PX-320A DVD/CD-RW Drive device. [Firmware HQ]
  
• gsword.cpp: Measured microcontroller clocks for gsword. [Guru]
  
• dec8.cpp: Verified all clocks for Ghostbusters. [Guru]
  
• lwings.cpp: Measured main CPU clock on a bootleg sectionza PCB. [Guru]
  
• m90.cpp: Updated documentation and IC locations. [hammy]
  
• aristmk5.cpp: Fixed error in cashcatnz layout. [Heihachi_73]
  
• spartanxtec.cpp: Added some IC locations, and added placeholders for undumped PLDs. [jordigahan]
  
• galivan.cpp: Re-dumped dangarj audio CPU ROMs. [Layer]
  
• triforce.cpp: Re-dumped “Triforce DIMM Updater (3.17) (GDT-0011)” to replace previous bad dump. [MajorPBX]
  
• seta.cpp: Switched jjsquawk to use three buttons (third button is used in the sound test). [Mike Moffitt]
  
• Fixed building with GCC versions that report a non-numeric version suffix. [MoochMcGee]
  
• at.cpp updates: [rfka01]
  
  • Added ht12a BIOS option head12a01.
  • Added at386sx BIOS options dell386sx, a3286a3886, ald93c308, intel and v514.
  • Added ct386sx BIOS options m345000, dtk386sx and solutions.
  • Added at386 BIOS options ssbc386at, opwb, 386atj7, vt386vt, l8949, acer310, kmxc02, frx521, frxs3b, 495sx, eemi and topcat.
  • Added alim1429 BIOS options revb, alim142901, alim142902 and asaki.
  • Added frxc402 BIOS option frximp.
  • Added opti495xlc BIOS options op82c495xlc and mao13.
  • Added hot409 BIOS option hot409v11.
  • Sorted systems by chipset and motherboard, and updated comments, including RAM and cache information.
• dec0.cpp: Decapped and dumped the 8751 microcontroller for Dragonninja (Japan revision 1). [TeamEurope, Brian Troha]
  
• karnov.cpp: Verified the Atomic Runner (Japan) 8751 microcontroller dump. [TeamEurope, Brian Troha]
  
• segas16b.cpp: Replaced microcontroller simulation with dumped program for Altered Beast (set 6) (8751 317-0076). [TeamEurope, Brian Troha]
  
• dec8.cpp: Replaced hand-crafted microcontroller program with program dump for The Real Ghostbusters sets. [TeamEurope, Brian Troha, The Dumping Union]
  
• firetrap.cpp: Replaced hand-crafted microcontroller program with program dump for Fire Trap (US). [TeamEurope, Brian Troha, The Dumping Union]
  
• karnov.cpp: Replaced hand-crafted microcontroller program with program dump for Chelnov - Atomic Runner (US). [TeamEurope, Brian Troha, The Dumping Union]
  
• segas16a.cpp: Replaced microcontroller simulation code with program dump for the Quartet sets. [TeamEurope, Brian Troha, The Dumping Union]
  
• segas16b.cpp: Replaced microcontroller simulation with program dump for Dynamite Dux (set 1) (8751 317-0095). [TeamEurope, Brian Troha, The Dumping Unionn]
  
• pc98.xml, svi318_cass.xml: Corrected some spelling errors in titles and labels. [Zoë Blade]
  
• Updated comments, and corrected spelling, grammar and typographical errors in comments and documentation. [Zoë Blade]
  

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Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart) • Open Interest by ticker (optinistics)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • How Often Within Expected Move? Data Science and Implied Volatility (Michael Rechenthin, PhD - TastyTrade 2017) • A selected list of option chain & option data websites
Selected Trade Positions & Management • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Rolling Short (Credit) Spreads (Redtexture) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Short calls and puts, and dividend risk (Redtexture) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations.
• CBOE Contract Specications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF) • CBOE Exchange Rules (770+ pages, PDF) • NASDAQ Options Exchange Rules
Following week's Noob thread: Oct 7-13 2019
Previous weeks' Noob threads: Sept 23-29 2019 Sept 16-22 2019 Sept 09-15 2019 Sept 02-09 2019 Aug 26 - Sept 02 2019
Complete NOOB archive, 2018, and 2019

Post any options questions you wanted to ask, but were afraid to ask. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge.
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • How Often Within Expected Move? Data Science and Implied Volatility (Michael Rechenthin, PhD - TastyTrade 2017) • A selected list of option chain & option data websites
Selected Trade Positions & Management • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations. • CBOE Exchange Rules (770+ pages, PDF) • CBOE Contract Specications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF)
Following week's Noob thread:
Sept 23-29 2019
Previous weeks' Noob threads:
Sept 09-15 2019 Sept 02-09 2019
Aug 26 - Sept 02 2019 Aug 19-25 2019 Aug 12-18 2019 Aug 05-11 2019
Complete NOOB archive, 2018, and 2019

Post any options questions you wanted to ask, but were afraid to ask. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge.
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • How Often Within Expected Move? Data Science and Implied Volatility (Michael Rechenthin, PhD - TastyTrade 2017) • A selected list of option chain & option data websites
Selected Trade Positions & Management • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations. • CBOE Exchange Rules (770+ pages, PDF) • CBOE Contract Specications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF)
Following week's Noob thread: Sept 09-15 2019
Previous weeks' Noob threads: Aug 26 - Sept 02 2019 Aug 19-25 2019 Aug 12-18 2019 Aug 05-11 2019 July 29 - Aug 4 2019
Complete NOOB archive, 2018, and 2019

MAME 0.214

With the end of September almost here, it’s time to see what goodies MAME 0.214 delivers. This month, we’ve got support for five more Nintendo Game & Watch titles (Fire, Flagman, Helmet, Judge and Vermin), four Chinese computers from the 1980s, and three Motorola CPU evaluation kits. Cassette support has been added or fixed for a number of systems, the Dragon Speech Synthesis module has been emulated, and the Dragon Sound Extension module has been fixed. Acorn Archimedes video, sound and joystick support has been greatly improved.
On the arcade side, remaining issues in Capcom CPS-3 video emulation have been resolved and CD images have been upgraded to CHD version 5, Sega versus cabinet billboard support has been added to relevant games, and long-standing issues with music tempo in Data East games have been worked around.
Of course, you can get the source and Windows binary packages from the download page.

MAMETesters Bugs Fixed

• 00130: [Sound] (darkseal.cpp) darkseal: When using your weapon, the music speed increases. (AJR)
• 00389: [Sound] (cbuster.cpp) cbuster: The music tempo increases up when the flamethrower is used. (AJR)
• 02108: [Sound] (vaportra.cpp) vaportra, vaportrau, kuhga: Music tempo changes when firing. (AJR)
• 03635: [Gameplay] (igspoker.cpp) cpoker, cpokert: Games freezing during play. (Roberto Fresca)
• 05802: [DIP/Input] (pk8020.cpp) korvet, neiva, kontur: Keyboard does not work! (Robbbert)
• 06205: [Graphics] (snes.cpp) snes [pilotwinu,pilotwinj]: Upper part of the screen image repeated. (AmatCoder)
• 06486: [Side-by-side] (a2600.cpp) a2600: Initial stack pointer value for the M6507 (6502) is incorrect. (MoochMcGee)
• 06901: [Crash/Freeze] (snes.cpp) snes [jdredd and clones]: Judge Dredd (all regions) stops working after title screen. (AmatCoder)
• 07405: [Sound] (dragon.cpp) dragon32, dragon64, dragon64h, dragon200, dragon200e: Dragon Sound Extention module is silent. (AJR)
• 07408: [Plugins] “autofire” plugin is not working properly. (Nathan Woods)
• 07412: [Crash/Freeze] (vgmplay.cpp) vgmplay [chaotixju_md]: Crash when attempting to play Sega 32X audio pack. (cam900)
• 07413: [Crash/Freeze] (exidy440.cpp) yukon, yukon1: The games crash or get stuck during the initial checks. (AJR)
• 07416: [Graphics] (legionna.cpp) denjinmk: Broken backgrounds in two game endings. (Angelo Salese)
• 07419: [Crash/Freeze] (snes.cpp) snes [firemenu, firemenj]: Screen remains black and game doesn’t start. (AmatCoder)
• 07425: [Misc.] (mac.cpp) macplus: Option/Command key positions swapped (U.S. PC keyboard). (R. Belmont)
• 07426: [Misc.] (mac.cpp) maciici: Non-matching Option key positions (U.S. PC keyboard). (R. Belmont)
• 07427: [Crash/Freeze] (arkanoid.cpp) arkgcbl, arkgcbla, arkangc2, arkbloc2, arkbloc3, block2, paddle2: Crash on start. (Robbbert)
• 07430: [Graphics] (nes.cpp) ultstunt and clones: Introduction screens and playfield are corrupted. (AJR)

New working machines

• China Jiangmen Computer Equipment Factory H-01 JCE [zzemu]
• China State-owned 830 Factory NF500A [zzemu]
• Draw Poker (Joker Poker V.01) [Roberto Fresca TeamEurope]
• Game & Watch: Fire (silver) [algestam, Mr. Do, Sean Riddle]
• Game & Watch: Flagman [algestam, Mr. Do, Sean Riddle]
• Game & Watch: Helmet (Rev. 2) [algestam, hap, Mr. Do, Sean Riddle]
• Game & Watch: Judge (green) [algestam, Mr. Do, Sean Riddle]
• Game & Watch: Vermin [algestam, hap, Mr. Do, Sean Riddle]
• Motorola MEK6802D3 [68bit]
• Motorola MEK6802D4 [68bit]
• Motorola MEK6802D5 [68bit]
• Nanjing Computer Factory Zi Jin I [zzemu]
• Novag Super Sensor IV [hap, Berger, Achim]
• SciSys / Philidor Software Chess Champion: Mark V [hap, Berger]
• SciSys Kasparov Turbostar 432 [hap, anonymous]
• Urachacha Mudaeri (Korea) [brizzo, Angelo Salese, The Dumping Union]

New working clones

• Birdie Try (Japan revision 2, revision 1 MCU) [TeamEurope, Guru]
• China HKC HKC 8800A [zzemu]
• Fidelity Electronics Excel 68000 Mach II (rev. C+, set 2) [Berger]
• Game & Watch: Balloon Fight (crystal screen) [algestam, hap, Mr Jiggles the Christmas Man]
• Gouketsuji Ichizoku (Japan, prototype) [twistedsymphony]
• Hegener + Glaser Mephisto ESB II [Berger, Achim]
• Hegener + Glaser Mephisto III (ver. B) [Berger, Achim]
• Kuri Kinton (US, World Games license) [coolmod, The Dumping Union]
• Novag Constellation 3.6MHz (set 1) [hap, Berger, Achim]
• Novag Constellation 3.6MHz (set 2) [Berger]
• Novag Constellation Quattro [hap, anonymous]
• Novag Savant II [Berger, Achim]
• Pac Man (U.G. bootleg of Puck Man) [f205v]
• Psyvariar -Medium Unit- (V2.02O 2000/02/22 13:00) [rtw]
• Raiden Fighters (Greece) [Sergio Galiano, Recreativos Piscis]
• SciSys / Philidor Software Chess Champion: Mark VI/Philidor [hap, Berger, anonymous]
• Venture (version 5 set 2, bootleg) [f205v]

Machines promoted to working

• Unior [Robbbert]

Clones promoted to working

• Champion Poker (v101) [Roberto Fresca]
• Champion Poker (v201F) [Roberto Fresca]
• Lady Liner (encrypted, set 1) [TeamEurope, Roberto Fresca, Ivan Vangelista]
• Lady Liner (encrypted, set 2) [TeamEurope, Roberto Fresca, Ivan Vangelista]
• Lady Liner (encrypted, set 3) [TeamEurope, Roberto Fresca, Ivan Vangelista]
• Lady Liner (encrypted, set 4) [TeamEurope, Roberto Fresca, Ivan Vangelista]
• Lovely Cards (encrypted) [TeamEurope, Roberto Fresca, Ivan Vangelista]
• New Lucky 8 Lines (set 10, W-4, encrypted NEC D315-5136) [Grull Osgo]

New machines marked as NOT_WORKING

• Alpha Micro AM-1000 [Bitsavers]
• Cablenet 2039 Controller [Al Kossow, Bitsavers]
• Maldaliza [brizzo, Angelo Salese, The Dumping Union]
• VTech Genius Leader Select [TeamEurope, The Dumping Union]
• Wully Bully [brizzo, Angelo Salese, The Dumping Union]

New clones marked as NOT_WORKING

• 286 motherboards with 5-chip SUNTAC chipset [rfka01]
• 286 motherboards with 5-chip VLSI chipset [rfka01]
• 286 motherboards with Headland G2 chipset [rfka01]
• 386 Motherboard using the Forex FRX46C402 + FRX46C411 + SiS 85C206 chipset [rfka01]
• 386 motherboard using the Symphony chipset [rfka01]
• 386 motherboards using a OPTi 82C495XLC chipset [rfka01]
• 386 motherboards using the ALi M1429 A1 and M1431 A2 chipset [rfka01]
• 386 motherboards with a FOREX FRX46C402/FRX36C300/SIS85C206 chipset [rfka01]
• 386 SC Rev A2 [rfka01]
• 386-4N-D04A (UMC chipset) [rfka01]
• Asus ISA-386C [rfka01]
• Asus ISA-386U30 REV.2.2 [rfka01]
• AUVA COMPUTER, INC. BAM/12-S2 [rfka01]
• AUVA VIP-M21502A BAM16-A0 [rfka01]
• BI-025C HT-12 286 (HT12/A chipset) [rfka01]
• Biostar MB-1212C [rfka01]
• CDTEK 286 motherboard with Headland G2 chipset [rfka01]
• CMP enterprise CO.LTD. 286 motherboard [rfka01]
• DFI 386-20.REV0 [rfka01]
• DTK PEM 2539 [rfka01]
• Eagle PC-2 [rfka01]
• Everex Systems EV-1815 [rfka01]
• GOLDSTAR P/N 611-606A Rev 1.0A [rfka01]
• HLB-286 MBA-009 [rfka01]
• KMA-202F-12R (Winbond chipset) [rfka01]
• Leading Edge Model M [rfka01]
• Leanord SA Elan High Tech 286 [rfka01]
• Magitronic Technology Magitronic B236 [rfka01]
• Micromint MPX-16 [rfka01]
• Morse KP-286 [rfka01]
• Octek 286 mainboard with Headland G2 chipset [rfka01]
• Octek Jaguar V v1.4 [rfka01]
• Olivetti M203 motherboard [rfka01]
• PC-Chips M205 [rfka01]
• PC-Chips M321 [rfka01]
• PC-Chips M326 [rfka01]
• PC-Chips M919 [rfka01]
• Pipi & Bibis / Whoopee!! (bootleg, set 2) [anonymous]
• Shuttle Computer International HOT-304 [rfka01]
• SM 386-40F (Forex chipset) [rfka01]
• Snobol Mini 286 [rfka01]
• Soyo SY-019H and SY-019I [rfka01]
• SY-012 16/25 386MB VER: 5.2 [rfka01]
• TAM/33/40-MA0 (CM318R00,M31-R00) [rfka01]
• Uniron U3911-V3 [rfka01]
• Vendex HeadStart Plus [rfka01]
• Wyse WYSEpc 286 [rfka01]

New working software list additions

• amiga_apps: Amiga Appetizer (Sv), Desktop Budget (Sv), SuperDuper 2.02 [FakeShemp]
• apple2_flop_clcracked:
  • Charlie Brown's 1, 2, 3's (1990 Queue re-release) (cleanly cracked), Chivalry (Revision 2) (cleanly cracked), Computer Preparation for the SAT (Version 1.1A) (cleanly cracked), Creature Chorus (Version 4.0) (cleanly cracked), Julius Erving and Larry Bird Go One on One (cleanly cracked), MicroExam Test Bank for Computer Mathematics: Structured BASIC with Math Applications (Version 1.01) (cleanly cracked), Millionaire (Version 2.1) (cleanly cracked), Professor Davensteev's Galaxy Search: Blue Level (cleanly cracked), Professor Davensteev's Galaxy Search: Red Level (cleanly cracked), Quiz Castle (cleanly cracked), The Sales Edge (cleanly cracked), Universe II (Version 1.0) (cleanly cracked) [4am, Firehawke]
  • Buck Rogers - Planet of Zoom (cleanly cracked) [LoGo, Firehawke]
  • Star Fleet 1: The War Begins (cleanly cracked) [Peter Ferrie, Firehawke]
• apple2_flop_misc: Olin in Emerald [www.mocagh.org, Dan Chisarick, Firehawke]
• apple2_flop_orig:
  • Crossbow, Dogfight, Dragon's Keep, The Fidelity Chessmaster 2100, Hyper Head On, Infiltrator, Infiltrator Part II: The Next Day, International Hockey, Oo-Topos, PHM Pegasus, Racter, Roach Hotel, The Rocky Horror Show, The Sands of Mars, Snoggle, Succession, Super Mario Bros. Print World, Tawala's Last Redoubt, Tuesday Morning Quarterback [4am, Firehawke]
  • Olin in Emerald [4am, www.mocagh.org, Dan Chisarick, Firehawke]
  • Star Fleet 1: The War Begins [Brian Wiser, Firehawke]
• gba: Broken Circle (Euro) [No-Intro, FakeShemp]
• ggm: Sandy Edition - Master Chess, Steinitz Edition-4 - Master Chess [anonymous]
• gtfore: Golden Tee Fore! 2002 (V2.00.00), Golden Tee Fore! 2003 (V3.00.04), Golden Tee Fore! 2004 (V4.00.XX), Golden Tee Fore! 2005 (V5.00.XX), Golden Tee Fore! Complete (V6.00.XX) [FakeShemp]
• ibm5150: 2400 A.D. (set 2), Colossus Bridge 4, The Faery Tale Adventure: Book I, Star Pack, UMS II: Nations at War - Planet Editor [FakeShemp]
• ibm5170: Bundesliga Manager Professional, QuickLink II Fax, Veil of Darkness, Vinguiden 1.0 (Sweden) [FakeShemp]
• mac_flop: Balance of the Planet, Lode Runner [FakeShemp]
• saitek_kso: Kasparov Selected Openings [Berger, anonymous]
• sorcerer_cass: Defense [exidyboy]
• spectrum_cass: The Quill Adventure System (C series) (set 1, C05) [David Haywood]
• vgmplay: Air Rescue (Sega System 32), Alien3 - The Gun (Sega System 32), Barunba (MSX2), Barunba (PC Engine), Blaster Master - Enemy Below (Nintendo Game Boy Color), Bosconian (MSX), Cueb Runner (Sharp X68000), Dragon Buster (Sharp X68000), Fist of the North Star (NES), Fist of the North Star - 10 Big Brawls for the King of Universe (Nintendo Game Boy), Fray (MSX2), Hokuto no Ken (Family Computer), Illusion City (MSX turbo R), Image Fight (Sharp X68000), John Madden Football II (PC), King & Balloon (MSX), Kyuukyoku Tiger (Sharp X68000), Mappy (NEC PC-8801), Pac-Land (Sharp X68000), Pac-Man (MSX), R-Type (Sharp X68000), The Return of Ishtar (Fujitsu FM77AV), The Return of Ishtar (NEC PC-8801), The Return of Ishtar (NEC PC-9801), SHM (MSX2), Tank Battalion (MSX), Terra Cresta (Sharp X68000), Thunder Dragon (Arcade), Total Carnage (IBM PC AT), Toy Story Racer (Nintendo Game Boy Color), Turok - Battle of the Bionosaurs (Nintendo Game Boy), Turok - Rage Wars (Nintendo Game Boy Color), Turok 2 - Seeds of Evil (Nintendo Game Boy Color), Turok 3 - Shadow of Oblivion (Nintendo Game Boy Color), XVM (MSX) [Tafoid]
• vsmile_cart:
  • Abenteuer im ABC Park (Germany, Rev. 3), The Batman - Rettung von Gotham City (Germany) [TeamEurope]
  • The Batman - Rescate en Gotham City (Spain), Bob der Baumeister - Bobs spannender Arbeitstag (Germany, Rev. 104), Bob y sus Amigos - Un Día De Trabajo (Spain), Campeonato de Futbol V.Smile (Spain), Disney/Pixar Cars - Acelera el Motor en Radiador Springs (Spain), Disney/Pixar À Procura de Nemo - Nemo À Descoberta do Oceano (Portugal), DreamWorks Shrek - El Cuento de la Dragona (Spain), Lil' Bratz Estrellas De La Moda - Amigos, Moda y Diversión (Spain), Noddy - Detective Por um Dia (Portugal), Scooby-Doo - Misterio En El Parque (Spain, translucent blue cartridge), Superman - El Hombre de Acero (Spain), Walt Disney La Cenicienta - Los sueños mágicos de Cenicienta (Spain) [TeamEurope, ClawGrip]

Software list items promoted to working

• dragon_cart: Speech Synthesis Module [Nigel Barnes]

New NOT_WORKING software list additions

• gj4000: Wissen für Kinder [TeamEurope]
• gl6000sl: Update - Rechtschreibreform [TeamEurope]
• glcx: Update Programm-Zusatzkassette (Ger) [TeamEurope]
• gls: Spielend Richtig Schreiben [TeamEurope]
• ibm5170: Strike Commander, Strike Commander: Speech Pack, Strike Commander: Tactical Operations [FakeShemp]
• mac_flop: The Supercars - Test Drive II Car Disk [FakeShemp]
• mac_hdflop: Lost in Time - Parts 1 & 2 [FakeShemp]
• st_flop: Ferrari Formula One (Euro) [FakeShemp]
• vsmile_cart:
  • Cranium - Freizeit Park - Ein Jahrmarkt voller Spiel- und Lernspaß (Germany), Dolphis Wasser-abenteuer (Germany) [TeamEurope]
  • Cranium - Parque de Atracciones de Cranium (Spain), Dakota y su mascota (Spain), Disney/Pixar Toy Story 2 (Smartbook) (USA), Disney's Little Einsteins (Spain), Kung Fu Panda - Aventura en el Valle de la Paz (Spain), Nick Jr. Dora the Explorer - Dora's Got a Puppy (Smartbook) (USA), Spider-Man y Amigos - Misiones Secretas (Spain, Rev. 222), V.Smile Estudio De Arte (Spain), V.Smile PC (Spain), Walt Disney La Cenicienta - Los sueños mágicos de Cenicienta (Spain, Rev. 122) [TeamEurope, ClawGrip]
• vsmilem_cart: Disney La Casa de Mickey Mouse (Spain), Disney Winnie the Pooh - En busca de la miel (Spain), Disney/Pixar Cars - Acelera el Motor en Radiador Springs (Spain), Disney/Pixar Toy Story 3 (Spain), Disney/Pixar UP (Spain), Disney/Pixar Wall-E (Spain), DreamWorks Monstruos contra Alienígenas (Spain), ¡¡Scooby-Doo!! - Misterio en el parque (Spain) [TeamEurope, avlixa, ClawGrip]

Source Changes

• bus/ss50: Corrected SS-30 MPS2 “high” Baud rates. [68bit]
  
• bus/ss50: Don’t log reads from empty SS-50 slots when side effects are disabled. [68bit]
  
• flex_dsk.cpp: Fixed logging of the disk name extension. [68bit]
  
• swtpc09.cpp: Added hard disk support to the DMAF3 controller. [68bit]
  
  • Includes new WD1000 hard disk controller support, and improved DMAF2/DMAF3 MC6844 DMA emulation.
• mc6845.cpp: Improved cursor emulation, including differences between the MC6845 and HD6845S. [68bit]
  
• asmjs: Removed option to ignore missing libraries, and removed util and SDL2_ttf from link libraries. [68bit]
  
• unidasm: Added -xchbytes option to swap input bytes. [AJR]
  
• Added dump and emulation for Alpha Micro AM-310 Communications Controller. [AJR, Bitsavers]
  
• m37710: Internalized timing for analog-to-digital converter. [AJR]
  
• Distinguish DIP switches that belong to different devices but have the same name in UI menus. [AJR]
  
  • Most likely to occur when multiple instances of the same device type are configured on bus slots.
• h8: Improved disassembly. [AJR]
  
  • Corrected sign extension for 16-bit absolute addresses.
  • Add h' prefix to hexadecimal numbers.
  • Restrict address length depending on model.
  • Align arguments.
• airbustr.cpp, djboy.cpp, hvyunit.cpp, sidearms.cpp: Corrected sound IRQ sources. [AJR]
  
• c140.cpp: Added timing output to trigger periodic FIRQ. [AJR]
  
• h6820: Added a hack to work around incorrect music speed in cbuster.cpp, darkseal.cpp and vaportra.cpp (MT00130, MT00389, MT02108). [AJR]
  
• prestige.cpp: Corrected metadata (glmmc is now gmmc), and marked gmmc system ROM as a bad dump. [AJR]
  
• h6280: Reduced logical address space width, and made debugger use official names for banking registers. [AJR]
  
• exidy440.cpp: Fixed crash/assertion failure caused by palette having too few entries. [AJR]
  
• Added preliminary ELAN Microelectronics RISC II CPU emulation. [AJR]
  
• dp8350.cpp: Improved timing, and fixed save states. [AJR]
  
• nes.hsi: Fixed mirroring for Ultimate Stuntman. [AJR]
  
• Fixed debugger dump command for address-shifted spaces. [AJR]
  
• snes.cpp: Don’t reset HDMA on writes to HDMAEN if the register value isn’t changed (fixes MT06205). [AmatCoder]
  
• g65816, spc700: Improved cycle counting (fixes MT06901 and MT07419). [AmatCoder]
  
• crospuzl.cpp: Improved Flash loading. [Angelo Salese]
  
• VRender0 updates: [Angelo Salese]
  
  • Improved menghong hardware emulation, allowing crzyddz2 to boot and improving menghong colors.
  • Moved video and audio components into the system-on-a-chip device, and added preliminary UART emulation.
  • Allowed external video clock to be set by the host driver.
• segaic24.cpp: Implemented reverse Y clipping logic (fixes sprite priorities in Crack Down). [Angelo Salese]
  
• archimds.cpp updates: [Angelo Salese]
  
  • Fixed cursor enable and sizing (used by caverns to display score and main player sprite).
  • Added preliminary RTFM and serial joystick support.
  • Re-implemented Acorn VIDC10 emulation, adding stereo sound support and improving raster effects.
• segac2.cpp: Added links to reference videos. [cam900]
  
• gba.xml: Corrected ROM size for brokenc. [cam900]
  
• k051649.cpp: Added more address map mirrors, added save state support, and cleaned up code. [cam900]
  
• ym2151.cpp: Clear both output buffers when reset is asserted. [cam900]
  
• psikyosh.cpp: Refactored common pixel operations into helper functions, improved use of const, and cleaned up code. [cam900]
  
• ay8910.cpp: Implemented AY8930 extensions, made pin 26 an input, added notes, and cleaned up code. [cam900]
  
• deco_mlc.cpp: Improved blending behavior and cleaned up code. [cam900]
  
• mega32x.cpp: Removed assumptions about host system’s sound outputs (fixes MT07412). [cam900]
  
• 315_5313.cpp: Fixed 3-bit color mode masking, implemented device_gfx_interface, and separated shadow/highlight palettes. [cam900]
  
• calcune.cpp: Converted drawing routine to use VDP palette, added save state support, and reduced redundant code. [cam900]
  
• video/generic.cpp: Added 16×16 layouts composed of 2×2 arrangement of 8×8 tiles, and made a number of drivers use generic layouts. [cam900]
  
• imagetek_i4100.cpp: Added notes and cleaned up code. [cam900]
  
• hyprduel.cpp: Set MACHINE_NO_COCKTAIL flag on hyprduel and hyprduel2. [cam900]
  
• nmk16.cpp: Verified some clock sources and CPU types. [cam900]
  
• legionna.cpp: Always invalidate tilemaps on bank change for Denjin Makai and Heated Barrel. [cam900]
  
• plugins/cheat: Added time functions to the cheat sandbox. [Carl]
  
• netlist: Force C locale when formatting numbers (fixes exception when global locale is set). [Couriersud]
  
• spectrum: Added preliminary Beta Disk emulation (not working). [David Haywood]
  
• karnov.cpp: Hooked up 8031 microcontroller for chelnovjbl. [Dirk Best]
  
• model3.cpp: Hook up 315-5649 I/O controller. [Dirk Best]
  
• HP9845: Reimplemented TACO based on recently-published internal documentation. [F.Ulivi]
  
  • Also separated DC100 tape cartridge device, and added support for 16-bit data format used by HP9845 and HP885.
• hphybrid: Fixed bug that caused hp9825t to hang when calculating logarithms. [F.Ulivi]
  
• Don’t throttle emulation while paused if video update-in-pause is enabled. [feos]
  
• icebox.cpp: Hooked up floppy controller interrupt request, allowing disk routines to work properly. [Frank Palazzolo]
  
• apple2: Corrected Joyport multiplexing. [Golden Child]
  
• apple2: Fixed key code for Ctrl-Shift-P and modifier codes for M and N on II and II Plus. [Golden Child]
  
• segacrp2_device.cpp: Added NEC D315-5136 device (used by lucky8k). [Grull Osgo]
  
• sh: Log SH2 FMR clock multiplier writes. [MetalliC]
  
• cps3.cpp updates – imperfect graphics flag has been removed: [MetalliC]
  
  • Hooked up coin lockouts and coin counters, and connected buttons 5 and 6 to jojo, jojoba and clones.
  • Made SS RAM and registers eight bits wide and fixed EEPROM size.
  • Added fixed delay to palette/character DMA interrupts, and removed periodic interrupt hack.
  • Fixed missing star sprite in introduction and game title background color for jojo.
  • Render tilemaps as sets of rows from sprite list (fixes sfiii Alex stage background).
  • Implemented sprite list caching (fixes warzard two-player versus screen and jojo introduction text).
  • Replaced disk images version 5 CHD files build from trurip database.
  • Re-implemented color fading, and zeroed low three bits of color channels.
  • Improved save state support, Improved function/variable naming, cleaned up code, and improved documentation.
• cps3.cpp: Implemented tilemap flipping, added a delay to sprite list DMA acknowledgement, and buffered global scroll registers. [MetalliC, David Haywood]
  
• geneve: Added PC keyboard connector, allowing the use of emulated PC XT keyboards. [Michael Zapf]
  
• m6502: Improved reset sequence emulation (fixes MT06486). [MoochMcGee, hap, smf]
  
• Exposed running_machine::exit_pending() and running_machine::hard_reset_pending() to Lua scripts. [Nathan Woods]
  
• Changed osd_get_clipboard_text() to return std::string. [Nathan Woods]
  
• dragon32: Added JCB Speech Synthesis cartridge emulation. [Nigel Barnes]
  
• acorn_vidc.cpp: Generate µ-law table at device start time. [O. Galibert, Angelo Salese]
  
• tms34020: Fixed BLMOVE alignment handling (fixes endless loop in Atronic games). [Priit Laes]
  
• apple2: Added initial support for ComputerEyes/2 image capture slot card. [R. Belmont, Golden Child]
  
• f2mc16 updates: [R. Belmont]
  
  • Implemented more opcodes.
  • Made interrupt handling more robust.
  • Implemented mb9061x timers 0 and 1, including external event counter mode.
  • Fixed BBC branch offset.
  • Added more opcodes to the disassembler and normalized bit syntax.
  • Added save state support and cleaned up code.
• Added a preliminary native Cocoa OSD layer for macOS (not working yet). [R. Belmont]
  
• mac.cpp, mac128.cpp: Made default mapping for Command key right alt for all machines. [R. Belmont]
  
• Emulated Sega Billboard and hooked it up to ST-V, Model 2 and Model 3 games. [Rob Krum, Dirk Best]
  
• i8251: Implemented synchronous modes. [Robbbert]
  
• unior.cpp, pp01.cpp: Fixed cassette interfaces. [Robbbert]
  
• pmd85.cpp: Added cassette to alfa and mato, fixed cassette on other sets, and added notes. [Robbbert]
  
• poly88.cpp: Fixed cassette polyphase mode. [Robbbert]
  
• argo.cpp: added DMA, CRTC, PIT and cassette by guesswork. [Robbbert]
  
• plan80.cpp: Added speaker sound. [Robbbert]
  
• pk8020.cpp: Fixed keyboard and updated notes (MT05802). [Robbbert]
  
• mycom.cpp: Fixed scrolling. [Robbbert]
  
• goldnpkr.cpp: Replaced incorrectly dumped jokercar extended graphics ROMs with data from another set to make the game playable. [Roberto Fresca]
  
• goldstar.cpp: Simplified cherrys graphics decryption code. [Roberto Fresca]
  
• igspoker.cpp updates: [Roberto Fresca]
  
  • Patched out protection in cpokert, cpokerx, cpoker101, cpoker201f and cpoker210ks (MT03635).
  • Fixed inputs for cpoker, cpokert and cpoker201f.
• SGI Newport graphics: Fixed inverted-Y pixel read-back (fixes crash in Alias PowerAnimator 7.5). [Ryan Holtz]
  
• r4000: Report the correct sub-revision for the R4600, and allow specific R4x00 types to specify the FPU ID as well. [Ryan Holtz]
  
• indigo.cpp: Switched indigo4k to use the new R4000 CPU core. [Ryan Holtz]
  
• SGI HAL2 audio: Corrected chip revision ID to match real hardware. [Ryan Holtz]
  
• sgi_mc: Flag EISA bus as present on both Indigo² and Indy, as VINO uses EISA signals for GIO64 arbitration. [Ryan Holtz]
  
• vino: Implemented the majority of its functionality, and hooked it up to picture_image_device. [Ryan Holtz]
  
• hh_sm510.cpp: Improved re-created melody ROMs for gnw_bfight and gnw_mbaway. [algestam]
  
• debugger: Added mips and m68k support to gdbstub, and added support for running MAME debugger commands from the client. [Ramiro Polla]
  
• Changed Travis CI build to use GCC 9, and added MinGW GCC build to AppVeyor. [Belegdol]
  
• marineb.cpp: Documented difficulty settings for hoccer, and added DIP switch locations for most sets. [Brian Troha]
  
• policetr.cpp: Re-dumped U163 sound ROM for policetr10, and added speed-up hacks for sshooter, sshooter11 and policetr10. [Brian Troha]
  
• karnov.cpp: Re-dumped color BPROMS for chelnovj, confirming they match chelnov/chelnovu. [Brian Troha]
  
• ibm5170.xml updates: [FakeShemp]
  
  • Changed gilispa, mitsmous6, nd010pci, nusound, sndwav32 and wordfndr to IMD images.
  • Changed scroll3d, sndwav32, cpavfw, microcp3, wordfndr and thndrhwk to MFM images.
  • Re-dumped internet and nicklaus.
• ibm5150.xml: Replaced tgipack and ranger1 with MFM images. [FakeShemp]
  
• amiga_hardware.xml: Dumped a590_seagate disk. [FakeShemp]
  
• blackt96.cpp: Measured PIC microcontroller clock frequency. [Guru]
  
• wyvernf0.cpp: Measured clock frequencies. [Guru]
  
• symbolics.cpp: Changed unpopulated ROM regions to read as 0xFF to match hardware tests. [Josh Dersch]
  
• neptunp2.cpp: Added EEPROM dump to rockroll. [jordigahan, ClawGrip]
  
• commando.cpp: Corrected CPU frequency and updated notes. [Jose Tejada]
  
• gng.cpp: Corrected notes. [Jose Tejada]
  
• midvunit.cpp: Added re-created A19993 PAL program. [JROK, Hydreigon]
  
• naomi.cpp: Re-dumped initdv2ja and ggxxsla GD-ROMs. [MajorPBX]
  
• sprint4.cpp: Fixed gear shift controls for fourth player. [Mark Spaeth]
  
• bfm_sc4.cpp, exidyttl.cpp, globalfr.cpp, jpmmps.cpp, monacogp.cpp, mpu5.hxx, simple_st0016.cpp: Edited titles for consistency. [MASH]
  
• genpc.cpp updates: [rfka01]
  
  • Increased pc BIOS region size to 64 KiB to support late XT clones.
  • pc: “Added Super Computer BIOS 1.2”, “B-190-B”, “KT 10 M/B” and “Ruud Baltissen's Diagnostics” BIOS options.
• at.cpp updates: [rfka01]
  
  • Expanded chipset details and notes.
  • at: Added “286 TACT”, “CDTEK 286” and “Landmark/Supersoft diagnostic ROMs” BIOS options.
  • at386: Added “386 board with Ali chipset”, “386 UMC 3DIUD”, “386GRN-like board rev.03”, “MB1325PM” and “Tandon/Micronics with 385” BIOS options.
  • atvga: Added “286 TACT” and “CDTEK 286” BIOS options.
  • neat: added “286-NEAT”, “VIP BAM/16-11” and “CP-805” BIOS options.
  • vlsi5: Added “MBVLSI-168” BIOS option.
• ibmpc.cpp: Added “Landmark/Supersoft Diagnostics” BIOS options for ibm5150 and ibm5160. [rfka01]
  
• hawk.cpp: Added “DEMOS 2.21 V1.01” BIOS option. [TheEPROM9]
  
• cps1.cpp: Dumped U104 PAL for Street Fighter II' CE Mstreet-6 bootlegs sf2cems6a and sf2cems6b. [TwistedTom]
  
• chinagat.cpp: Added PCB layouts and TRJ-100 pinout information, and updated notes. [yukaritamura]
  
• supbtime.cpp: Fixed DE-0343 board main CPU and audio CPU clock frequencies. [yukaritamura]
  

Post any options questions you wanted to ask, but were afraid to. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge.
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade or series of trades, disclose position details, so that responders can help you. Vague inquires receive vague responses. TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, especially for Reddit mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes)
Trade planning, risk reduction and trade size • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Options Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • A selection of options chains data websites (no login needed)
Selected Trade Positions & Management • The diagonal calendar spread and "poor man's covered call" (Redtexture) • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, TDA Margin Handbook • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • CBOE Exchange Rules (770+ pages, PDF) • TDAmeritrade Margin Handbook (18 pages PDF)
Following week's Noob Thread:
July 22-28 2019
Previous weeks' Noob threads:
July 08-14 2019 July 01-07 2019
June 24-30 2019 June 17-23 2019 June 10-16 2019 June 03-09 2019
Complete NOOB archive, 2018, and 2019

Post any options questions you wanted to ask, but were afraid to ask. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge.
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • How Often Within Expected Move? Data Science and Implied Volatility (Michael Rechenthin, PhD - TastyTrade 2017) • A selected list of option chain & option data websites
Selected Trade Positions & Management • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations. • CBOE Exchange Rules (770+ pages, PDF) • CBOE Contract Specications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF)
Following week's Noob thread: Sept 16-22 2019
Previous weeks' Noob threads:
Sept 02-09 2019
Aug 26 - Sept 02 2019 Aug 19-25 2019 Aug 12-18 2019 Aug 05-11 2019
Complete NOOB archive, 2018, and 2019

Post any options questions you wanted to ask, but were afraid to. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge.
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Exercise & Assignment - A Guide (ScottishTrader) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Thoughts after trading for 7 Years (invcht2) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes) • There's a bull market somewhere (Jason Leavitt) (3 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Option Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • A selected list of option chain & option data websites
Selected Trade Positions & Management • Take the loss (here's why) (Clay Trader) (15 minutes) • The diagonal calendar spread and "poor man's covered call" (Redtexture) • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, Contract Specifications, TDA Margin Handbook, EU Regulations on US ETFs, US Taxes and Options • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • How to find out when a new expiration is opening up: email: [email protected] for the status of a particular ticker's new expirations. • CBOE Exchange Rules (770+ pages, PDF) • CBOE Contract Specications and Trading Days & Hours • TDAmeritrade Margin Handbook (18 pages PDF) • Monthly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers • Key Information Documents (KIDs) for European Citizens (Options Clearing Corporation) • Taxes and Investing (Options Industry Council) (PDF)
Following week's Noob thread: Sept 02-09 2019
Previous weeks' Noob threads: Aug 19-25 2019 Aug 12-18 2019 Aug 05-11 2019 July 29 - Aug 4 2019
Complete NOOB archive, 2018, and 2019

Post any options questions you wanted to ask, but were afraid to. A weekly thread in which questions will be received with equanimity. There are no stupid questions, only dumb answers.   Fire away. This is a weekly rotation with past threads linked below. This project succeeds thanks to people thoughtfully sharing their knowledge.
Perhaps you're looking for an item in the frequent answers list below.
For a useful response about a particular option trade, disclose position details, so that responders can assist. Vague inquires receive vague responses. Tell us: TICKER -- Put or Call -- strike price (for each leg, on spreads) -- expiration date -- cost of option entry -- date of option entry -- underlying stock price at entry -- current option (spread) market value -- current underlying stock price -- your rationale for entering the position.   .
Key informational links: • Glossary • List of Recommended Books • Introduction to Options (The Options Playbook) • The complete side-bar informational links, for mobile app users.

Links to the most frequent answers

I just made (or lost) $____. Should I close the trade? Yes, close the trade, because you had no plan for an exit to limit your risk. Your trade is a prediction: a plan directs action upon an (in)validated prediction. Take the gain (or loss). End the risk of losing the gain (or increasing the loss). Plan the exit before the start of each trade, for both a gain, and maximum loss. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture)
Why did my options lose value, when the stock price went in a favorable direction? • Options extrinsic and intrinsic value, an introduction (Redtexture)
Getting started in options • Calls and puts, long and short, an introduction (Redtexture) • Some useful educational links • Some introductory trading guidance, with educational links • Options Expiration & Assignment (Option Alpha) • Expiration time and date (Investopedia)
Common mistakes and useful advice for new options traders • Five mistakes to avoid when trading options (Options Playbook) • Top 10 Mistakes Beginner Option Traders Make (Ally Bank) • One year into options trading: lessons learned (whitethunder9) • Here's some cold hard words from a professional trader (magik_moose) • Avoiding Stupidity is Easier than Seeking Brilliance (Farnum Street Blog) • 20 Habits of Highly Successful Traders (Viper Report) (40 minutes)
Trade planning, risk reduction and trade size, etc. • Exit-first trade planning, and using a risk-reduction trade checklist (Redtexture) • Trade Checklists and Guides (Option Alpha) • An illustration of planning on trades failing. (John Carter) (at 90 seconds) • Trade Simulator Tool (Radioactive Trading) • Risk of Ruin (Better System Trader)
Minimizing Bid-Ask Spreads (high-volume options are best) • Fishing for a price: price discovery with (wide) bid-ask spreads (Redtexture) • List of option activity by underlying (Market Chameleon) • List of option activity by underlying (Barchart)
Closing out a trade • Most options positions are closed before expiration (Options Playbook) • When to Exit Guide (Option Alpha) • Risk to reward ratios change over the life of a position: a reason for early exit (Redtexture)
Options Greeks and Options Chains • An Introduction to Options Greeks (Options Playbook) • Options Greeks (Epsilon Options) • Theta Decay: The Ultimate Guide (Chris Butler - Project Option) • Theta decay rates differ: At the money vs. away from the money • Theta: A Detailed Look at the Decay of Option Time Value (James Toll) • Gamma Risk Explained - (Gavin McMaster - Options Trading IQ) • A selected list of options chain & option data websites
Selected Trade Positions & Management • The diagonal calendar spread and "poor man's covered call" (Redtexture) • The Wheel Strategy (ScottishTrader) • Rolling Short (Credit) Spreads (Options Playbook) • Synthetic option positions: Why and how they are used (Fidelity) • Covered Calls Tutorial (Option Investor) • Creative Ways to Avoid The Pattern Day Trader Rule (Sean McLaughlin) • Options and Dividend Risk (Sage Anderson, TastyTrade) • Options contract adjustments: what you should know (Fidelity) • Options contract adjustment announcements / memoranda (Options Clearing Corporation)
Implied Volatility, IV Rank, and IV Percentile (of days) • An introduction to Implied Volatility (Khan Academy) • An introduction to Black Scholes formula (Khan Academy) • IV Rank vs. IV Percentile: Which is better? (Project Option) • IV Rank vs. IV Percentile in Trading (Tasty Trade) (video)
Miscellaneous: Economic Calendars, International Brokers, RobinHood, Pattern Day Trader, CBOE Exchange Rules, TDA Margin Handbook, EU Regulations on US ETFs • Selected calendars of economic reports and events • An incomplete list of international brokers dealing in US options markets (Redtexture) • Free brokerages can be very costly: Why option traders should not use RobinHood • Pattern Day Trader status and $25,000 margin account balances (FINRA) • CBOE Exchange Rules (770+ pages, PDF) • TDAmeritrade Margin Handbook (18 pages PDF) • Montly expirations of Index options are settled on next day prices • PRIIPS, KIPs, EU regulations, ETFs, Options, Brokers
Following Week's Noob Thread:
Aug 12-18 2019
Previous weeks' Noob threads:
July 29 - Aug 4 2019 July 22-28 2019 July 15-21 2019 July 08-14 2019 July 01-07 2019
Complete NOOB archive, 2018, and 2019