log

age author description
Sat, 29 Apr 2017 16:51:57 -0700 Michael Pavone Initial stab at horizontal border when VDP test register layer selection is in effect for H40. Extended horizontal borders in Titancade scene and ninja escape scene mostly correct now
Sat, 29 Apr 2017 12:32:50 -0700 Michael Pavone Make internal screenshot functionality completely ignore overscan settings rather than only doing it for the height
Thu, 27 Apr 2017 23:08:49 -0700 Michael Pavone Fixes to sprite phase 2 so that sprite X reads use the exact same slot as on hardware in the case that there are fewer than the max number of sprites on each line. Re-read sprite Y from SAT cache during phase 2 and properly mask the calculated row. Fixes remaining issues with spinning cube scene in Overdrive 2.
Thu, 27 Apr 2017 09:32:21 -0700 Michael Pavone Adjust how the invalid size is handled for the horizontal dimmension of a plane. Fixes some garbage on the spinning cube scene of Overdrive 2
Wed, 26 Apr 2017 22:16:12 -0700 Michael Pavone Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Wed, 26 Apr 2017 21:55:12 -0700 Michael Pavone Fix timing for branch not taken case in the M68K BCC intruction
Wed, 26 Apr 2017 01:12:28 -0700 Michael Pavone Add 128K VRAM bit to VDP register print in debugger
Wed, 26 Apr 2017 01:05:40 -0700 Michael Pavone Handle address register displacement when calculating branch targets in debugger
Mon, 24 Apr 2017 20:49:31 -0700 Michael Pavone Fix interaction between 68K debugger and instruction retranslation due to self modifying code or bank switching
Sun, 23 Apr 2017 00:54:33 -0700 Michael Pavone Add config file option to disable Open GL rendering
Sat, 22 Apr 2017 01:22:47 -0700 Michael Pavone Fix vgmplay target for ternary tree changes
Fri, 21 Apr 2017 23:35:32 -0700 Michael Pavone Fix a deficiency in the way types were handled in my ternary tree. Fixes in which some paths that were constructed from a template with variables would sometimes get an extra garbage character thrown in
Fri, 21 Apr 2017 01:22:52 -0700 Michael Pavone Fairly major rework of how active/passive is handled along with how the V30 mode bit is handled. Allows the vertical border extension trick in Overdrive 2 to work right
Fri, 21 Apr 2017 01:19:40 -0700 Michael Pavone Minor optimization to avoid invalidating translated code when the bank has not actually changed. Makes a nasty edge case in the 68K debugger slightly less severe when dealing with code that uses banking
Thu, 20 Apr 2017 22:28:58 -0700 Michael Pavone Fixed timing for RTS and RTE
Tue, 18 Apr 2017 19:27:10 -0700 Michael Pavone Initial stab at implementing the output disable/layer selection bits of the VDP test register
Mon, 17 Apr 2017 23:58:21 -0700 Michael Pavone Fix time 68K is locked out of bus when doing a 128KB VRAM mode DMA transfer. Fixes a number of problems in Overdrive 2
Mon, 17 Apr 2017 20:54:33 -0700 Michael Pavone SAT table register bit 0 is not used in H40 mode. Fixes corrupt sprites in ship crash landing scene in Overdrive 2
Sun, 16 Apr 2017 18:43:34 -0700 Michael Pavone Fix some edge cases with regards to 128KB VRAM mode and the SAT cache
Sun, 16 Apr 2017 16:40:04 -0700 Michael Pavone Initial work on handling the 128KB VRAM mode bit and some basic prep work for VDP test register support
Sun, 16 Apr 2017 16:38:56 -0700 Michael Pavone Force display on in stateview if given a save state with the display off
Sat, 15 Apr 2017 21:45:19 -0700 Michael Pavone Fix copy pasta error in handling of Z80 VDP port reads. HV counter reads are not illegal writes =P. Fixes immediate exit in Overdrive II, though other problems remain
Wed, 05 Apr 2017 09:48:49 -0700 Michael Pavone Fix minor bug that displayed window plane as if it were plane A In plane debug view
Tue, 04 Apr 2017 19:31:14 -0700 Michael Pavone Allow a .l suffix to a memory print command to allow fetching and printing a longword
Mon, 03 Apr 2017 20:48:13 -0700 Michael Pavone Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Fri, 31 Mar 2017 19:11:04 -0700 Michael Pavone Allow adding .w or .b to select just the low word or byte of a register in a 68K debugger print command
Fri, 31 Mar 2017 19:07:04 -0700 Michael Pavone Allow printing current frame number in 68K debugger
Fri, 31 Mar 2017 09:49:02 -0700 Michael Pavone Fix accidental fallthrough on com debugger command
Thu, 30 Mar 2017 23:59:57 -0700 Michael Pavone YM2612 should also be reset on system soft reset
Thu, 30 Mar 2017 23:57:30 -0700 Michael Pavone Reset YM2612 whenver the Z80 is reset. Fixes issue with stuck notes in Fantastic Dizzy and Kid Chameleon
Wed, 29 Mar 2017 22:31:37 -0700 Michael Pavone Added Might and Magic III prototype to ROM DB as it requires SRAM, but does not indicate it in the standard header
Wed, 29 Mar 2017 09:29:38 -0700 Michael Pavone Update ROM DB to override region for Japanese version of Atomic Robo-Kid (incorrect header) and to support some more unlicensed Chinese games with fixed value registers as documented by Andlabs on the Sega Retro wiki
Wed, 29 Mar 2017 00:29:44 -0700 Michael Pavone Allow games to be specified in ROM DB via sha1 instead of product ID. Added a new ROM DB memory map device type fixed for emulating simple fixed value copy protection registers. Used those two features to support Ya Se Chuan Shuo via a ROM DB entry.
Tue, 28 Mar 2017 09:39:54 -0700 Michael Pavone Fix exit trace mode edge case. Call do_sync if trace mode bit is changed in eori sr
Tue, 28 Mar 2017 00:13:35 -0700 Michael Pavone Implemented M68K trace mode. Some edge cases/SR update paths still need work
Mon, 27 Mar 2017 09:45:40 -0700 Michael Pavone Add Japanese version of SSF2 to ROM database
Mon, 27 Mar 2017 00:40:10 -0700 Michael Pavone Initial implementation of YM2612 SSG-EG mode
Sat, 25 Mar 2017 15:41:52 -0700 Michael Pavone Basic implementation of CSM mode that should handle documented edge cases. Dodesn't handle the weird undocumented edge cases I don't have a good understanding of yet though
Sat, 25 Mar 2017 11:31:43 -0700 Michael Pavone Fix latching of V32 mode bit
Sat, 25 Mar 2017 00:21:32 -0700 Michael Pavone Prevent blowing past our native translated instruction size of 255 bytes when translating movem with a large register list. Fixes bug in which Fantastic Dizzy was completely broken on 32-bit builds
Wed, 22 Mar 2017 22:16:39 -0700 Michael Pavone Fix SBCD edge cases to pass Flamewing's test ROM. Could use some cleanup to produce better code for the SBCD case, but produces correct results now
Tue, 21 Mar 2017 21:59:05 -0700 Michael Pavone Change the default screenshot path as per ticket:14
Tue, 21 Mar 2017 21:40:47 -0700 Michael Pavone Make save directory configurable. Satisfies ticket:4
Tue, 21 Mar 2017 19:56:50 -0700 Michael Pavone Allow variables in screenshot_path like initial_path
Tue, 21 Mar 2017 19:48:08 -0700 Michael Pavone Don't leak a ternary tree when building the menu's initial path
Tue, 21 Mar 2017 00:40:25 -0700 Michael Pavone Allow initial_path to contain variable references which allows the default value to be actually specified in the default config file
Sun, 19 Mar 2017 18:32:49 -0700 Michael Pavone Adjust Z80 interrupt pulse duration to match hardware measurements
Sun, 19 Mar 2017 12:54:20 -0700 Michael Pavone Change handling of invalid scroll plane sizes. Fixes title and high score screens in The Incredible Hulk
Sun, 19 Mar 2017 11:17:40 -0700 Michael Pavone Adjust DMA start delay to not break the FIFO Wait State test in the VDP FIFO Testing ROM
Sun, 19 Mar 2017 11:14:34 -0700 Michael Pavone Minor fix to hacky refresh emulation code to more closely match my intent
Sun, 19 Mar 2017 00:34:15 -0700 Michael Pavone Add Mega Everdrive style header detection for homebrew using the SSF2 mapper, though without the Mega Everdrive extensions. Properly invalidate translated code on a bank switch when using the SSF2/Sega mapper
Sat, 18 Mar 2017 23:18:37 -0700 Michael Pavone Basic refresh emulation that doesn't break direct color DMA demos. Fixes sound after entering pause menu in Pacman 2: The New Adventures
Sat, 18 Mar 2017 17:09:14 -0700 Michael Pavone Remove hacky post-DMA delay add proper pre-DMA delay based on logic analyzer capture. 512 color screen is a bit messed up but mostly works. Needs investigation
Fri, 17 Mar 2017 08:05:55 -0700 Michael Pavone Minor fix to timing of "early" overflow case in divs when the dividend is negative
Fri, 17 Mar 2017 08:02:03 -0700 Michael Pavone Fixed some deficiencies in the 68K test generator
Wed, 15 Mar 2017 19:05:27 -0700 Michael Pavone Cycle accurate implementation of divs
Tue, 14 Mar 2017 00:06:19 -0700 Michael Pavone Fix heuristic detection of SRAM for 3MB ROMs with SRAM at the 3MB mark
Tue, 14 Mar 2017 00:05:33 -0700 Michael Pavone Added a ROM DB entry for Hardball III. This game lacks a proper SRAM header
Mon, 13 Mar 2017 23:14:13 -0700 Michael Pavone RESET is not a terminal instruction on the 68K. Fixes a crash bug in Chavez II and possibly other games
Mon, 13 Mar 2017 23:13:24 -0700 Michael Pavone Fix VDP buffer overrun that was causing sprite flickering in some games