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Properly handle dbcc, rtr and rte in the debugger next command
Sun, 09 Feb 2014 10:29:29 -0800, by Mike Pavone
Properly handle jmp instructions in the debugger next command
Sun, 09 Feb 2014 00:42:43 -0800, by Mike Pavone
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Sat, 08 Feb 2014 23:37:09 -0800, by Mike Pavone
Implement per-channel wave logging and primitive looping support in vgm player.
Fri, 07 Feb 2014 21:18:05 -0800, by Michael Pavone
Properly clamp envelope value to zero when it overflows during the attack phase. This fixes a number of instruments that sounded rather wrong as well as the missing melody line from Mushroom Hill Zone in Sonic and Knuckles
Fri, 07 Feb 2014 00:41:51 -0800, by Michael Pavone
Increment sample pointer after reading a sample in VGM player
Fri, 07 Feb 2014 00:21:56 -0800, by Michael Pavone
Add support for VGM 1.50 PCM data blocks
Thu, 06 Feb 2014 22:18:19 -0800, by Michael Pavone
Add a zp command to the 68K debugger to allow printing Z80 registers while in the 68K debugger
Thu, 06 Feb 2014 10:04:31 -0800, by Michael Pavone
Fix accidental use of the conditional jump instruction jp instead of jmp
Thu, 06 Feb 2014 10:03:59 -0800, by Michael Pavone
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
Mon, 03 Feb 2014 09:18:10 -0800, by Michael Pavone
Add 3 wait states to Z80 access to bank area since that seems to be roughly the average in normal usage
Tue, 28 Jan 2014 08:36:06 -0800, by Michael Pavone
Fix timing of certain ld and jp instructions in the Z80 core
Mon, 27 Jan 2014 22:12:22 -0800, by Michael Pavone
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Mon, 06 Jan 2014 22:54:05 -0800, by Michael Pavone
Add support for left and right shift keys
Thu, 31 Oct 2013 01:00:32 -0700, by Mike Pavone
Small optimization for H40 mode
Thu, 31 Oct 2013 00:28:27 -0700, by Mike Pavone
Fix allocation and memset size for field buffers when using OpenGL
Tue, 29 Oct 2013 23:13:15 -0700, by Mike Pavone
Use OpenGL by default. Add OpenGL switch to help text
Tue, 29 Oct 2013 19:11:45 -0700, by Mike Pavone
Preserve aspect ratio unless config file says otherwise
Tue, 29 Oct 2013 19:09:19 -0700, by Mike Pavone
Merge
Tue, 29 Oct 2013 00:03:11 -0700, by Mike Pavone
Pull shader file names from config file.
Mon, 28 Oct 2013 23:59:59 -0700, by Mike Pavone
Move shader files to their own directory. Read shaders from /.config/blastem/shaders or from path_to_exe/shaders instead of the current working directory.
Mon, 28 Oct 2013 23:50:28 -0700, by Mike Pavone
Extract function to determine executable directory from load_config so it can be used elsewhere
Mon, 28 Oct 2013 21:48:46 -0700, by Mike Pavone
Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mon, 28 Oct 2013 19:37:30 -0700, by Mike Pavone
Initial implementation of sprite overflow and sprite collision status register flags
Mon, 07 Oct 2013 10:02:08 -0700, by Mike Pavone
Add support for UI bindings on gamepad buttons and dpads
Fri, 04 Oct 2013 20:16:18 -0700, by Mike Pavone
Merged OpenGL branch
Sun, 27 Oct 2013 22:08:02 -0700, by Mike Pavone
Close OpenGL feature branch opengl
Sun, 27 Oct 2013 22:07:43 -0700, by Mike Pavone
Enable fullscreen mode in OpenGL renderer opengl
Sun, 27 Oct 2013 21:58:03 -0700, by Mike Pavone
Support interlace mode with OpenGL backend opengl
Sun, 27 Oct 2013 21:41:21 -0700, by Mike Pavone
Basic OpenGL rendering is working opengl
Sun, 27 Oct 2013 01:29:50 -0700, by Mike Pavone
Update opengl branch from default. Fix build breakage unrelated to merge opengl
Sat, 26 Oct 2013 22:38:47 -0700, by Mike Pavone
Add an FPS counter to the title bar
Thu, 03 Oct 2013 21:22:05 -0700, by Mike Pavone
Follow amd64 ABI stack alignment requirements in places it matters so we can call sprintf with floating point arguments without crashing
Thu, 03 Oct 2013 21:21:47 -0700, by Mike Pavone
Add support for test instruction to x86 generator library
Thu, 03 Oct 2013 21:20:29 -0700, by Mike Pavone
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Tue, 01 Oct 2013 23:51:16 -0700, by Mike Pavone
Theoretically more correct timing of Z80 bus request
Wed, 18 Sep 2013 19:10:54 -0700, by Mike Pavone
Set VBLANK flag in status register when display is disabled
Tue, 17 Sep 2013 19:10:00 -0700, by Mike Pavone
Implement HV counter latch
Tue, 17 Sep 2013 09:45:14 -0700, by Mike Pavone
Implement funny behavior for DMA fill to CRAM and VSRAM. Return VSRAM address 0 for reads to VSRAM at >= 40
Tue, 17 Sep 2013 00:42:49 -0700, by Mike Pavone
Fix DMA fill so that it does not cause observable changes to the FIFO. Get DMA copy mostly correct from an observable ffect perspective. DMA copy probably does not reflect internal implementation still given that evidence seems to suggest no FIFO usage at all.
Tue, 17 Sep 2013 00:11:45 -0700, by Mike Pavone
Partial fix for DMA copy
Mon, 16 Sep 2013 09:44:22 -0700, by Mike Pavone
Clear the low 2 bits of CD when a register is written to
Sun, 15 Sep 2013 23:49:09 -0700, by Mike Pavone
Don't allow register writes to regs above when in Mode 4
Sun, 15 Sep 2013 23:40:18 -0700, by Mike Pavone
Remove read pending stuff, that had been added in an attempt to fix CRAM/VSRAM undefined bit results. Set number of bits actually saved in VSRAM to 11
Sun, 15 Sep 2013 23:33:24 -0700, by Mike Pavone
Implement undocumented 8-bit VRAM read
Sun, 15 Sep 2013 23:00:17 -0700, by Mike Pavone
Fix VSRAM reads
Sun, 15 Sep 2013 22:43:01 -0700, by Mike Pavone
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
Sun, 15 Sep 2013 22:20:43 -0700, by Mike Pavone
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
Fri, 13 Sep 2013 19:22:46 -0700, by Mike Pavone
Fix argument handling so that the rom filename does not need to be specified first
Wed, 11 Sep 2013 19:26:35 -0700, by Mike Pavone
Added README file v0.1.0
Wed, 11 Sep 2013 00:08:33 -0700, by Mike Pavone
Added copyright notice to source files and added GPL license text in COPYING
Tue, 10 Sep 2013 23:31:08 -0700, by Mike Pavone
Fix vgmplay
Tue, 10 Sep 2013 21:20:54 -0700, by Mike Pavone
Fix stateview. Update "all" target in Makefile.
Tue, 10 Sep 2013 21:07:13 -0700, by Mike Pavone
Added version flag
Tue, 10 Sep 2013 20:36:05 -0700, by Mike Pavone
Added -h help text option
Tue, 10 Sep 2013 20:32:59 -0700, by Mike Pavone
Fix timing of backdrop rendering when the display is turned off
Tue, 10 Sep 2013 09:55:12 -0700, by Mike Pavone
Merge
Tue, 10 Sep 2013 00:30:39 -0700, by Mike Pavone
Implement FIFO latency and improve DMA accuracy
Tue, 10 Sep 2013 00:29:46 -0700, by Mike Pavone
Revert change to VBLANK flag timing based on new direct color DMA test
Sun, 08 Sep 2013 20:48:33 -0700, by Mike Pavone
Remove extra 68K/VDP cycle sync
Sun, 08 Sep 2013 20:47:01 -0700, by Mike Pavone
Fix bit instruction timing
Sun, 08 Sep 2013 20:46:25 -0700, by Mike Pavone
Initial work on GDB remote debugging support
Wed, 04 Sep 2013 19:34:19 -0700, by Mike Pavone
Added analysis script used for investigating direct color DMA timing
Mon, 02 Sep 2013 01:03:08 -0700, by Mike Pavone
Fix per-column scrolling bug
Mon, 02 Sep 2013 01:02:18 -0700, by Mike Pavone
Adjust VBLANK flag and refresh timing to be in line with logic analyzer and visual observations of direct color DMA demos. Remove debug print statements.
Mon, 02 Sep 2013 00:20:56 -0700, by Mike Pavone
Merge
Sun, 01 Sep 2013 14:27:17 -0700, by Mike Pavone
Added support for saving savestates. Added gst savestate format test harness
Fri, 26 Jul 2013 19:55:04 -0700, by Mike Pavone
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
Sun, 01 Sep 2013 12:11:28 -0700, by Mike Pavone
Started work on OpenGL support in new branch opengl
Tue, 23 Jul 2013 23:01:03 -0700, by Mike Pavone
Fix handling of key on in YM2612 core
Sat, 20 Jul 2013 23:49:31 -0700, by Mike Pavone
Fix performance regression from stop instruction work
Sat, 20 Jul 2013 23:40:28 -0700, by Mike Pavone
Implement 68K stop instruction
Fri, 19 Jul 2013 22:44:00 -0700, by Mike Pavone
Add config values for audio sample rate and buffer size
Thu, 18 Jul 2013 09:59:39 -0700, by Mike Pavone
Add fullscreen support and add a keybinding for exiting the emulator
Wed, 17 Jul 2013 22:26:11 -0700, by Mike Pavone
Fix sign flag on swap
Wed, 17 Jul 2013 00:23:45 -0700, by Mike Pavone
Fix carry flag on rotate when the register provided rotate bit count is exactly 32
Wed, 17 Jul 2013 00:18:28 -0700, by Mike Pavone
Add a bunch of 68K test cases for single operand instructions
Wed, 17 Jul 2013 00:17:42 -0700, by Mike Pavone
Fix 68K test harness
Tue, 16 Jul 2013 23:16:50 -0700, by Mike Pavone
Add support for single operand instructions to 68K test generator
Tue, 16 Jul 2013 23:16:38 -0700, by Mike Pavone
Add address/cd registers to VDP debug message
Tue, 16 Jul 2013 23:16:14 -0700, by Mike Pavone
Restore one of the VDP debugging modes
Mon, 15 Jul 2013 23:07:45 -0700, by Mike Pavone
Implement the scroll ring buffer properly without memcpy
Fri, 12 Jul 2013 19:11:55 -0700, by Mike Pavone
Updated todo list
Thu, 11 Jul 2013 08:34:38 -0700, by Mike Pavone
Read default region from config file
Wed, 10 Jul 2013 23:55:11 -0700, by Mike Pavone
Read default render width from config file
Wed, 10 Jul 2013 23:52:09 -0700, by Mike Pavone
Read joystick bindings from config file
Wed, 10 Jul 2013 23:47:48 -0700, by Mike Pavone
Read key bindings from config file
Wed, 10 Jul 2013 22:48:17 -0700, by Mike Pavone
Add config file parser and default config file
Wed, 10 Jul 2013 09:38:05 -0700, by Mike Pavone
Added ternary tree implementation and a simple test program for it
Tue, 09 Jul 2013 20:51:42 -0700, by Mike Pavone
Last set of changes to analyze.py from when I was last working on reversing the VDP
Sun, 07 Jul 2013 15:05:50 -0700, by Mike Pavone
Refactor duplicated CRAM writing code and fix a bug in the process
Sun, 30 Jun 2013 21:45:23 -0700, by Mike Pavone
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
Sun, 30 Jun 2013 11:45:58 -0700, by Mike Pavone
Forgot to null initialize the statfile pointer
Sat, 29 Jun 2013 17:21:19 -0700, by Mike Pavone
Add support for loading GST format savestates
Sat, 29 Jun 2013 17:15:08 -0700, by Mike Pavone
Use the registers that were freed up by the memory map function changes
Tue, 25 Jun 2013 23:18:57 -0700, by Mike Pavone
Change default resolution to 640x480
Tue, 25 Jun 2013 23:03:25 -0700, by Mike Pavone
Move IO code to a separate file and do a tiny bit of refactoring
Tue, 25 Jun 2013 19:20:39 -0700, by Mike Pavone
Fix access to int_enable_cycle in EI
Mon, 24 Jun 2013 21:32:25 -0700, by Mike Pavone
Cleanup makefile and link math library
Mon, 24 Jun 2013 21:30:38 -0700, by Mike Pavone
Implement basic joystick support
Sun, 23 Jun 2013 22:27:12 -0700, by Mike Pavone
Fix window layer in double res interlace mode
Sun, 23 Jun 2013 12:27:11 -0700, by Mike Pavone
Change buffer size to avoid weird artifacts on some systems
Sun, 23 Jun 2013 11:25:56 -0700, by Mike Pavone
Fix sprite y mask in interlace mode. Fix framebuffer selection when switching out of interlace mode.
Sun, 23 Jun 2013 10:17:40 -0700, by Mike Pavone
Fix vscroll calculation in double resultion interlace mode
Sun, 23 Jun 2013 09:17:19 -0700, by Mike Pavone
Initial work on interlace
Sat, 22 Jun 2013 21:19:43 -0700, by Mike Pavone
Fix movem with pc displacement or pc indexed source
Wed, 19 Jun 2013 00:40:13 -0700, by Mike Pavone
Initial stab at LFO phase modulation
Wed, 19 Jun 2013 00:25:09 -0700, by Mike Pavone
Use a slightly more sane PSG volume divider. Stil seems too loud, need to check the real hardware.
Wed, 19 Jun 2013 00:24:59 -0700, by Mike Pavone
Process events in vgm player so that quitting works
Mon, 17 Jun 2013 19:34:47 -0700, by Mike Pavone
Add primitive vgm player for testing
Mon, 17 Jun 2013 00:54:14 -0700, by Mike Pavone
Add support for logging YM2612 channels to WAVE files
Sun, 16 Jun 2013 17:57:57 -0700, by Mike Pavone
Fix modulation condition for operator 2
Sun, 16 Jun 2013 13:42:13 -0700, by Mike Pavone
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Sun, 16 Jun 2013 13:25:45 -0700, by Mike Pavone
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Sun, 16 Jun 2013 11:59:45 -0700, by Mike Pavone
Fix YM2612 timers
Sun, 16 Jun 2013 00:56:23 -0700, by Mike Pavone
Assert z80 interrupt longer so that they are not missed when they should not be
Sat, 15 Jun 2013 23:50:59 -0700, by Mike Pavone
Fix DI
Sat, 15 Jun 2013 23:10:48 -0700, by Mike Pavone
Have test generator test both flag register 0 case and flag register FF case
Sat, 15 Jun 2013 23:10:37 -0700, by Mike Pavone
Fix adc and sbc
Fri, 14 Jun 2013 23:27:01 -0700, by Mike Pavone
Make keybindings data driven so they can be populated from a config file later
Fri, 14 Jun 2013 00:25:04 -0700, by Mike Pavone
Fix LDIR
Thu, 13 Jun 2013 22:23:15 -0700, by Mike Pavone
Fix output of algorithm 4 and make some other minor YM2612 core improvements
Tue, 11 Jun 2013 23:36:18 -0700, by Mike Pavone
Add debugger command for saving Z80 RAM to a file
Tue, 11 Jun 2013 23:10:33 -0700, by Mike Pavone
Bail out on attempt to run code from bank area until it is properly supported
Tue, 11 Jun 2013 23:09:57 -0700, by Mike Pavone
Fix address adjustement in z80_retrans_stub
Sun, 09 Jun 2013 02:38:56 -0700, by Mike Pavone
Z80 debugger improvements
Sun, 09 Jun 2013 02:03:26 -0700, by Mike Pavone
Check memory results in ztestgen
Sat, 08 Jun 2013 12:59:23 -0700, by Mike Pavone
Use a call instruction to figure out the original native address when retranslating so that it does not get lost when the byte transforms from a instruction word to extension word
Sat, 08 Jun 2013 11:31:52 -0700, by Mike Pavone
Removed out of date TODO
Thu, 06 Jun 2013 08:45:54 -0700, by Mike Pavone
Fix LDD and LDDR
Thu, 06 Jun 2013 08:19:25 -0700, by Mike Pavone
Fix dec and inc when the operand is in memory
Wed, 05 Jun 2013 22:55:23 -0700, by Mike Pavone
Fix channel mapping in key on/off register
Wed, 05 Jun 2013 19:26:02 -0700, by Mike Pavone
Fix LDI
Wed, 05 Jun 2013 18:47:39 -0700, by Mike Pavone
Fix set/res when the operand is in memory
Tue, 04 Jun 2013 22:30:49 -0700, by Mike Pavone
Initial implementation of channel 3 special mode
Tue, 04 Jun 2013 21:23:12 -0700, by Mike Pavone
Fix operator precedence bug with sustain level
Tue, 04 Jun 2013 09:16:41 -0700, by Mike Pavone
Fix modulation shift value
Mon, 03 Jun 2013 23:44:11 -0700, by Mike Pavone
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mon, 03 Jun 2013 21:43:38 -0700, by Mike Pavone
Make shift value of operator output to modulation input a define
Sun, 02 Jun 2013 22:37:48 -0700, by Mike Pavone
Adjust shift for feedback
Sun, 02 Jun 2013 22:33:27 -0700, by Mike Pavone
Initial stab at feedback
Sun, 02 Jun 2013 22:30:41 -0700, by Mike Pavone
Fix key scaling
Sun, 02 Jun 2013 21:52:42 -0700, by Mike Pavone
Clear IFF1 and IFF2 when an interrupt is taken on the Z80
Sun, 02 Jun 2013 21:38:18 -0700, by Mike Pavone
Fix YM2612 busy flag
Sun, 02 Jun 2013 21:12:43 -0700, by Mike Pavone
Fix cycle count for inc and dec
Sun, 02 Jun 2013 21:12:26 -0700, by Mike Pavone
Bunch of Z80 debugger improvements
Sun, 02 Jun 2013 20:14:27 -0700, by Mike Pavone
Use signed ints for things that represent signed values in YM2612 core
Sun, 02 Jun 2013 13:42:33 -0700, by Mike Pavone
Fix register to operator mapping. Fix rate table generation. Add TL to envelope value rather than using it as a limit for the attack phase.
Sun, 02 Jun 2013 00:00:22 -0700, by Mike Pavone
Fix left/right enable default value
Fri, 31 May 2013 21:30:11 -0700, by Mike Pavone
Make the n command in the Z80 debugger actually run the next instruction without needing a c command
Fri, 31 May 2013 20:47:34 -0700, by Mike Pavone
Fix P condition in Z80 core
Fri, 31 May 2013 20:46:56 -0700, by Mike Pavone
Partial implementation of Z80 debugger
Fri, 31 May 2013 19:43:13 -0700, by Mike Pavone
Actually save the shifted phase inc after applying the block shift
Wed, 29 May 2013 21:21:14 -0700, by Mike Pavone
Incredibly broken YM2612 support plus a fix to Z80 bus request
Wed, 29 May 2013 00:57:19 -0700, by Mike Pavone
Fix push AF
Wed, 29 May 2013 00:13:48 -0700, by Mike Pavone
YM2612 WIP update
Mon, 27 May 2013 22:19:11 -0700, by Mike Pavone
Fix deadlock on quit
Mon, 27 May 2013 20:56:02 -0700, by Mike Pavone
Fix sizeof expression passed to malloc in z80_init to avoid a minor memory error
Mon, 27 May 2013 20:37:55 -0700, by Mike Pavone
YM2612 WIP snapshot before register refactor
Mon, 27 May 2013 09:54:58 -0700, by Mike Pavone
Make Z80 writes to VDP/PSG not potentially crash the emulator
Fri, 24 May 2013 00:41:54 -0700, by Mike Pavone
Allow VDP/PSG writes from Z80
Fri, 24 May 2013 00:26:27 -0700, by Mike Pavone
Get rid of debug puts and limit based on audio rather than frame rate by default.
Thu, 23 May 2013 23:55:42 -0700, by Mike Pavone
Fix clipping in PSG core
Thu, 23 May 2013 23:51:49 -0700, by Mike Pavone
Initial PSG support. Mostly works, noise channel is borked though.
Thu, 23 May 2013 23:42:42 -0700, by Mike Pavone
Updated todo list
Wed, 22 May 2013 09:37:02 -0700, by Mike Pavone
Finish SRAM support for games without a SEGA mapper
Tue, 21 May 2013 23:29:48 -0700, by Mike Pavone
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Tue, 21 May 2013 22:08:59 -0700, by Mike Pavone
Refactor code gen for read/write functions
Tue, 21 May 2013 19:26:20 -0700, by Mike Pavone
Fix some minor copy pasta bugs that resulted in an unnecessary REX prefix being generated for some instructions
Tue, 21 May 2013 01:14:59 -0700, by Mike Pavone
m68k_trap is now replaced with a generated one so it can call the generated memory acccess functions. The old static memory access functions have been removed from runtime.S
Tue, 21 May 2013 01:10:04 -0700, by Mike Pavone
Generate handle_cycle_limit_int at runtime so it can refer to the runtime generated memory map functions
Tue, 21 May 2013 00:56:56 -0700, by Mike Pavone
Fix a region detection bug
Sun, 19 May 2013 18:40:34 -0700, by Mike Pavone
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
Sun, 19 May 2013 13:47:47 -0700, by Mike Pavone
Handle busack across frame boundary
Sun, 19 May 2013 11:38:15 -0700, by Mike Pavone
Mostly working runtime generation of memory map read/write functions
Sat, 18 May 2013 11:44:42 -0700, by Mike Pavone
Get frame time correct and frame rate sort of correct for EUR region
Thu, 16 May 2013 09:37:53 -0700, by Mike Pavone
Support regions other than USA
Wed, 15 May 2013 23:51:22 -0700, by Mike Pavone
Set window title based on ROM header name
Wed, 15 May 2013 23:32:21 -0700, by Mike Pavone
Increase sample size for min_delay
Wed, 15 May 2013 22:39:36 -0700, by Mike Pavone
Re-enable frame limit, but add a command line flag to disable it
Wed, 15 May 2013 22:37:25 -0700, by Mike Pavone
Fix background color regsiter number
Wed, 15 May 2013 22:37:04 -0700, by Mike Pavone
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Tue, 14 May 2013 22:52:15 -0700, by Mike Pavone
Some Z80 interrupt fixes
Tue, 14 May 2013 21:59:56 -0700, by Mike Pavone
Only latch video mode at the very beginning of the frame to avoid problems with the cycle count getting out of sync with what I expect
Tue, 14 May 2013 00:46:34 -0700, by Mike Pavone
Update Z80 vint timing
Tue, 14 May 2013 00:40:10 -0700, by Mike Pavone
Update hv counter calculation for clock wonkiness
Tue, 14 May 2013 00:28:45 -0700, by Mike Pavone
Fixup VINT cycle and HBLANK flag for the previous timing fixes
Tue, 14 May 2013 00:03:26 -0700, by Mike Pavone
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
Mon, 13 May 2013 23:42:52 -0700, by Mike Pavone
Implement first line/last line weirdness in VDP
Mon, 13 May 2013 21:52:33 -0700, by Mike Pavone
Fewer magic numbers in the VDP core for the win
Mon, 13 May 2013 21:36:33 -0700, by Mike Pavone
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mon, 13 May 2013 21:06:08 -0700, by Mike Pavone
Added more 68K test cases
Mon, 13 May 2013 21:05:49 -0700, by Mike Pavone
Fixed decoding of CHK destination
Sun, 12 May 2013 01:34:29 -0700, by Mike Pavone
Fix retrun address calculation for CHK exceptions
Sun, 12 May 2013 01:34:17 -0700, by Mike Pavone
Properly mask sprite X and Y coordinates
Sat, 11 May 2013 23:59:20 -0700, by Mike Pavone
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
Sat, 11 May 2013 22:45:05 -0700, by Mike Pavone
Don't update interrupt mask on non-interrupt exceptions
Sat, 11 May 2013 21:19:31 -0700, by Mike Pavone
Fix check for code writes
Sat, 11 May 2013 01:57:41 -0700, by Mike Pavone
Port instruction retranslation improvements from Z80 core to M68K core
Sat, 11 May 2013 01:38:57 -0700, by Mike Pavone
Implement hblank flag in status register
Fri, 10 May 2013 23:16:06 -0700, by Mike Pavone
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Fri, 10 May 2013 22:57:56 -0700, by Mike Pavone
Add YM2612 stubs to transz80
Thu, 09 May 2013 20:59:49 -0700, by Mike Pavone
Fix return address for RST
Thu, 09 May 2013 20:09:49 -0700, by Mike Pavone
Show absolute addresses for JR, JRCC and DJNZ in Z80 disassembler
Thu, 09 May 2013 19:38:28 -0700, by Mike Pavone
Fix terminal instruction detection in disassembler
Thu, 09 May 2013 19:24:18 -0700, by Mike Pavone
Properly handle instructions that use boty IYH and IYL
Thu, 09 May 2013 18:36:21 -0700, by Mike Pavone
Set the N flag to the correct value for DEC instructions
Thu, 09 May 2013 00:33:06 -0700, by Mike Pavone
Implement carry flag for shift instructions. Implement weird behavior for bit 0 of SLL. Fix missing break statement in SRL.
Thu, 09 May 2013 00:30:55 -0700, by Mike Pavone
Correctly set the N flag for SBC
Thu, 09 May 2013 00:17:12 -0700, by Mike Pavone
Deal with the fact that there's no 8-bit version of the BT family of instructions on x86
Thu, 09 May 2013 00:14:54 -0700, by Mike Pavone
Complete flag behavior for Z80 BIT instruction
Wed, 08 May 2013 23:44:49 -0700, by Mike Pavone
Properly handle negative displacements in Z80 core
Wed, 08 May 2013 23:31:19 -0700, by Mike Pavone
Contrary to the official documenation, OR and AND also set PV based on parity instead of overflow
Wed, 08 May 2013 23:29:21 -0700, by Mike Pavone
Set PV flag based on parity, not overflow for XOR
Wed, 08 May 2013 23:20:41 -0700, by Mike Pavone
BIT was setting the zero flag to the opposite of what it should have. This is now fixed.
Wed, 08 May 2013 23:17:54 -0700, by Mike Pavone
More fixes for confusion between Z80_UNUSED and MODE_UNUSED
Wed, 08 May 2013 23:12:08 -0700, by Mike Pavone
Compare src_op.mode with the correct constant in shift/rotate instructions
Wed, 08 May 2013 23:03:18 -0700, by Mike Pavone
Fix IX/IY register selection when the direction bit is set
Wed, 08 May 2013 22:49:50 -0700, by Mike Pavone
Fix calcuation of IX/IY dipslacements. Fix a bunch of stuff related to the IX/IY bit/shift/rotate instructions.
Wed, 08 May 2013 22:46:03 -0700, by Mike Pavone
Fix handling of instructions that combine an IX/IY displacement with another prefix in test generator
Wed, 08 May 2013 22:45:29 -0700, by Mike Pavone
Fix printing of negative displacements in Z80 disassembler
Wed, 08 May 2013 22:43:31 -0700, by Mike Pavone
Fix encoding of "extended" instructions in Z80 test generator
Wed, 08 May 2013 21:02:33 -0700, by Mike Pavone
Fix stupid copy-pasta bug in XOR
Wed, 08 May 2013 17:39:13 -0700, by Mike Pavone
Fix byte order of pop AF
Wed, 08 May 2013 17:32:28 -0700, by Mike Pavone
Cleanup reg printing in z80 test runner
Wed, 08 May 2013 17:05:12 -0700, by Mike Pavone
Added z80 test generator and z80 test runner.
Wed, 08 May 2013 14:40:48 -0700, by Mike Pavone
Make sure all rendering operations mask CRAM with 0xEEE before using it
Mon, 06 May 2013 00:57:56 -0700, by Mike Pavone
Implement writes from Z80 to YM-2612
Mon, 06 May 2013 00:54:58 -0700, by Mike Pavone
Hopefully more correct implementation of the Z80 busack status
Mon, 06 May 2013 00:22:24 -0700, by Mike Pavone
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Sun, 05 May 2013 22:56:42 -0700, by Mike Pavone
Implement RRD and implement flags on RLD
Sun, 05 May 2013 11:17:37 -0700, by Mike Pavone
Implemente RLD
Sat, 04 May 2013 18:51:53 -0700, by Mike Pavone
Implement HALT (sort of tested)
Sat, 04 May 2013 16:23:28 -0700, by Mike Pavone
Implement IN and OUT (untested)
Sat, 04 May 2013 15:58:15 -0700, by Mike Pavone
Implement RETI and RETN (untested). Cleanup tests for "terminal" instructions.
Sat, 04 May 2013 15:15:55 -0700, by Mike Pavone
Remove deferred address entries from abandoned translations inside z80_retrans_inst
Sat, 04 May 2013 14:36:50 -0700, by Mike Pavone
Save context in z80_do_sync
Fri, 03 May 2013 21:22:36 -0700, by Mike Pavone
Fix bank register update
Fri, 03 May 2013 21:09:48 -0700, by Mike Pavone
Fix native address lookup in bannked memory area
Fri, 03 May 2013 20:18:28 -0700, by Mike Pavone
Use hex where appropriate in disassembler
Fri, 03 May 2013 20:15:23 -0700, by Mike Pavone
Using push/pop inside translated code is not compatible with the current way the Z80 core returns to the caller
Fri, 03 May 2013 19:27:32 -0700, by Mike Pavone
Fix crash bug in Z80 interrupt support
Fri, 03 May 2013 18:50:16 -0700, by Mike Pavone
Implement shift instructions (untested)
Fri, 03 May 2013 18:49:48 -0700, by Mike Pavone
Implement CPL and NEG (untested)
Thu, 02 May 2013 22:39:39 -0700, by Mike Pavone
Implement LDD and LDDR
Thu, 02 May 2013 22:28:40 -0700, by Mike Pavone
Implement LDI
Thu, 02 May 2013 22:26:47 -0700, by Mike Pavone
Protect debug prints for busreq/reset regs with appropriate macros
Thu, 02 May 2013 22:21:41 -0700, by Mike Pavone
Fix decoding of CP.
Thu, 02 May 2013 22:18:33 -0700, by Mike Pavone
Fix IX/IY displace modes. Fix check for registers requiring REX.
Thu, 02 May 2013 22:18:22 -0700, by Mike Pavone
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Thu, 02 May 2013 21:54:04 -0700, by Mike Pavone
Don't mix *H regs with the REX prefix
Thu, 02 May 2013 00:10:24 -0700, by Mike Pavone
Fix some more retranslation bugs in the Z80 core
Wed, 01 May 2013 23:12:29 -0700, by Mike Pavone
Add -n flag for disabling the Z80 core
Wed, 01 May 2013 20:15:33 -0700, by Mike Pavone
Fix a crash bug in instruction retranslation
Wed, 01 May 2013 20:09:53 -0700, by Mike Pavone
Add a second context pointer to m68k_context so that try_fifo_write can still have easy access to the VDP. Handle writes to Z80 code addresses from the 68K.
Tue, 30 Apr 2013 20:36:15 -0700, by Mike Pavone
Implement ld to and from the I and R registers
Tue, 30 Apr 2013 20:33:30 -0700, by Mike Pavone
Implement LDIR and fix a bug in which context was not restored after a call to z80_handle_code_write
Tue, 30 Apr 2013 01:00:10 -0700, by Mike Pavone
Initial stab at integartiong Z80 core
Tue, 30 Apr 2013 00:39:31 -0700, by Mike Pavone
Fix a remaining z80_write reg swap bug. Properly initialize the native map slots. Reset appropriate regs when z80_reset is called.
Tue, 30 Apr 2013 00:39:20 -0700, by Mike Pavone
Fix infinite loop in Z80 disassembler
Tue, 30 Apr 2013 00:37:30 -0700, by Mike Pavone
Implement CCF and SCF
Mon, 29 Apr 2013 23:02:39 -0700, by Mike Pavone
Fix decoding of address in JP and JPCC instructions in the Z80 core
Mon, 29 Apr 2013 22:58:45 -0700, by Mike Pavone
Properly handle wrapping around to 0 in translate_z80_stream
Mon, 29 Apr 2013 22:52:05 -0700, by Mike Pavone
Fix bug in end condition inside translate_z80_stream.
Mon, 29 Apr 2013 22:37:47 -0700, by Mike Pavone
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mon, 29 Apr 2013 22:32:21 -0700, by Mike Pavone
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mon, 29 Apr 2013 21:46:48 -0700, by Mike Pavone
Fix target cycle count after 68K interrupt
Mon, 29 Apr 2013 01:14:24 -0700, by Mike Pavone
Implemented basic interrupt support in Z80 core.
Mon, 29 Apr 2013 00:59:50 -0700, by Mike Pavone
Forgot to commit zruntime a while back, adding it now.
Mon, 29 Apr 2013 00:59:32 -0700, by Mike Pavone
Implement ADC and SBC in Z80 core (untested)
Sun, 28 Apr 2013 23:25:18 -0700, by Mike Pavone
Implement rotation and bit set/reset instructions (untested).
Sun, 28 Apr 2013 22:41:30 -0700, by Mike Pavone
Implement RETCC in Z80 core.
Sun, 28 Apr 2013 21:00:27 -0700, by Mike Pavone
Implement cartridge rom loading in transz80
Sun, 28 Apr 2013 21:00:16 -0700, by Mike Pavone
Implement cycle limit in Z80 core.
Sun, 28 Apr 2013 18:53:43 -0700, by Mike Pavone
Implement EI, DI and IM in the Z80 core
Sun, 28 Apr 2013 14:32:45 -0700, by Mike Pavone
Implemente CP (untested)
Sun, 28 Apr 2013 14:05:02 -0700, by Mike Pavone
Implement EX, EXX and RST in Z80 core
Sun, 28 Apr 2013 13:45:17 -0700, by Mike Pavone
Add header dependencies to offsets
Sun, 28 Apr 2013 13:45:00 -0700, by Mike Pavone
Implement BIT and DJNZ (tested). Fix register mapping for IYL.
Fri, 26 Apr 2013 22:27:17 -0700, by Mike Pavone
Added the rest of the conditions to JPCC, implemented CALLCC (untested)
Fri, 26 Apr 2013 09:51:57 -0700, by Mike Pavone
Added key to save Z80 RAM to a file
Fri, 26 Apr 2013 09:51:13 -0700, by Mike Pavone
Implement more Z80 instructions (untested)
Thu, 25 Apr 2013 22:49:36 -0700, by Mike Pavone
Get Z80 core working for simple programs
Thu, 25 Apr 2013 21:01:11 -0700, by Mike Pavone
Add shadow/higlight info to debug renderer
Mon, 22 Apr 2013 23:56:13 -0700, by Mike Pavone
Less broken implementation of shadow/highlight
Mon, 22 Apr 2013 23:34:39 -0700, by Mike Pavone
Shadow and higlight operators were switched
Mon, 22 Apr 2013 21:24:50 -0700, by Mike Pavone
Added todo list
Mon, 22 Apr 2013 20:13:07 -0700, by Mike Pavone
Implemented shadow hilight mode.
Mon, 22 Apr 2013 19:39:38 -0700, by Mike Pavone
Improve color rendering accuracy and optimize SDL renderer a bit
Sun, 21 Apr 2013 19:12:48 -0700, by Mike Pavone
Fix overflow detection in divs. Fix negative immediate source for divs
Sun, 21 Apr 2013 16:44:46 -0700, by Mike Pavone
Added test cases for divs/divu and added divide by zero handler to test generator
Sun, 21 Apr 2013 16:44:10 -0700, by Mike Pavone
Implement CHK instruction (not fully tested).
Sun, 21 Apr 2013 13:00:34 -0700, by Mike Pavone
Fixed a couple bugs in roxl/roxr. X flag wasn't being saved properly and rotates of more than 31 bits were messed up as the X flag was being thrown away between the first 31 bits of rotate and the rest.
Sun, 21 Apr 2013 11:42:45 -0700, by Mike Pavone
Added testcases for move and roxl/roxr. Made some small improvements to test tools.
Sun, 21 Apr 2013 11:40:18 -0700, by Mike Pavone
Fix muls with a negative immediate source.
Sat, 20 Apr 2013 17:41:07 -0700, by Mike Pavone
Added testcases for muls, mulu, abcd and sbcd
Sat, 20 Apr 2013 17:32:34 -0700, by Mike Pavone
Fix modulo on bit operations with a memory destination
Sat, 20 Apr 2013 16:53:01 -0700, by Mike Pavone
Add support for picking random numbers in a larger range in test generator. Add support for running a subset of tests in runner. Added testcases for bit and rotate instructions.
Sat, 20 Apr 2013 15:14:47 -0700, by Mike Pavone
Fix overflow flag behavior for lsl/lsr/asr
Sat, 20 Apr 2013 14:36:41 -0700, by Mike Pavone
Fix autoincrement on a7 when used as a destination in a byte sized instruction
Sat, 20 Apr 2013 00:36:50 -0700, by Mike Pavone
Added testcases file. Some fixes to test generator for dealing with indexed mode with base and index reg the same. Added support for blastem headless mode in test runner.
Sat, 20 Apr 2013 00:29:14 -0700, by Mike Pavone
Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source.
Fri, 19 Apr 2013 21:36:54 -0700, by Mike Pavone
Added headless flag to avoid initializing SDL and opening a window when running tests.
Fri, 19 Apr 2013 21:36:00 -0700, by Mike Pavone
Add test generator, builder and runner
Fri, 19 Apr 2013 09:29:37 -0700, by Mike Pavone
Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag.
Tue, 16 Apr 2013 22:29:00 -0700, by Mike Pavone
Fixed up trans for changes to translate_m68k_stream, but still need to deal with missing callbacks.
Tue, 16 Apr 2013 09:38:30 -0700, by Mike Pavone
Small bit of cleanup
Tue, 16 Apr 2013 09:31:21 -0700, by Mike Pavone
Fix movem reg to mem for certain addressing modes
Sun, 27 Jan 2013 13:07:26 -0800, by Mike Pavone
Flag fixes for div, negx and not
Sat, 26 Jan 2013 02:47:26 -0800, by Mike Pavone
Tweaks to make blastem compatible with m68k-tester
Sat, 26 Jan 2013 01:33:32 -0800, by Mike Pavone
Fix overflow flag on ASL
Fri, 25 Jan 2013 18:39:22 -0800, by Mike Pavone
Add support for IY bit instructions to decoder
Wed, 23 Jan 2013 21:54:58 -0800, by Mike Pavone
Add support for IX bit instructions to decoder
Wed, 23 Jan 2013 21:50:54 -0800, by Mike Pavone
Add support for 2-byte IY instructions to decoder
Tue, 22 Jan 2013 20:24:14 -0800, by Mike Pavone
Add support for 2-byte IX instructions to decoder
Tue, 22 Jan 2013 20:21:05 -0800, by Mike Pavone
Distinguish between 1-byte and 2-byte NOPs
Mon, 21 Jan 2013 21:59:09 -0800, by Mike Pavone
Add support for bit instructions to decoder
Mon, 21 Jan 2013 21:17:52 -0800, by Mike Pavone
Add support for EXTD group 2-byte Z80 instructions in decoder
Sun, 20 Jan 2013 21:32:13 -0800, by Mike Pavone
Add initial stab at Z80 decoder and disassembler
Sun, 20 Jan 2013 19:11:24 -0800, by Mike Pavone
Add support for breaking into the debugger while game is running
Sun, 20 Jan 2013 19:10:29 -0800, by Mike Pavone
Add instruction address logging to translator and support for reading an address log to the disassembler
Thu, 17 Jan 2013 20:00:07 -0800, by Mike Pavone
Implement pc indexed mode as move dst
Thu, 17 Jan 2013 08:19:29 -0800, by Mike Pavone
Fix 6-button controller emulation
Wed, 16 Jan 2013 22:50:02 -0800, by Mike Pavone
Implement ABCD an SBCD. Fix BTEST with register source.
Wed, 16 Jan 2013 22:40:56 -0800, by Mike Pavone
Implement support for self-modifying code
Tue, 15 Jan 2013 00:14:36 -0800, by Mike Pavone
Prep work for handling games that modify code in RAM
Mon, 14 Jan 2013 21:56:54 -0800, by Mike Pavone
Fixes for direct color dma stuff
Mon, 14 Jan 2013 20:23:17 -0800, by Mike Pavone
Small fix to bg drawing that yields the proper res for direct color DMA
Mon, 14 Jan 2013 02:13:14 -0800, by Mike Pavone
Fix background rendering when display is off and improve refresh cycle emulation so that direct color DMA demos work
Mon, 14 Jan 2013 02:03:35 -0800, by Mike Pavone
Fix movem.w when dest is register list
Sun, 13 Jan 2013 23:48:04 -0800, by Mike Pavone
Fix return address for areg displacement mode JSR
Sun, 13 Jan 2013 23:06:26 -0800, by Mike Pavone
Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write
Sun, 13 Jan 2013 16:11:28 -0800, by Mike Pavone
Add ability to print out current 68K cycle in debugger
Sun, 13 Jan 2013 15:55:43 -0800, by Mike Pavone
Fix a bunch of bugs in the CPU core, add a 68K debugger
Sun, 13 Jan 2013 13:01:13 -0800, by Mike Pavone
Fix (a7)+ src when size is byte, fix trap return address, make div with areg src decoded to invalid
Wed, 09 Jan 2013 22:31:07 -0800, by Mike Pavone
Fix -(a7) dest when size is byte
Wed, 09 Jan 2013 21:41:55 -0800, by Mike Pavone
Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions
Wed, 09 Jan 2013 21:08:37 -0800, by Mike Pavone
Fix rendering of sprites at the top edge of screen
Tue, 08 Jan 2013 09:34:46 -0800, by Mike Pavone
Fix scc to set reg to 0xFF rather than 1 when the condition is true
Tue, 08 Jan 2013 09:34:24 -0800, by Mike Pavone
Fix order of reading saved pc and swapping user and system stack pointers
Sun, 06 Jan 2013 22:45:45 -0800, by Mike Pavone
Make sure we bail out of translation after translating an invalid instruction
Sun, 06 Jan 2013 21:44:54 -0800, by Mike Pavone
Print a message when we try to run an invalid instruction, not when we try to translate it
Sun, 06 Jan 2013 21:42:57 -0800, by Mike Pavone
Fix order of SR and PC saved in an exception stack frame
Sun, 06 Jan 2013 20:49:42 -0800, by Mike Pavone
Implement areg displacement mode for jsr
Sun, 06 Jan 2013 18:31:17 -0800, by Mike Pavone
Implement negx
Sun, 06 Jan 2013 15:20:23 -0800, by Mike Pavone
Implement movep
Sun, 06 Jan 2013 14:41:26 -0800, by Mike Pavone
Implement EORI CCR/SR
Sun, 06 Jan 2013 14:00:45 -0800, by Mike Pavone
Implement RTR
Sun, 06 Jan 2013 13:58:33 -0800, by Mike Pavone
Fix a bunch of addressing modes in movem when a register list is the destination
Sun, 06 Jan 2013 13:42:13 -0800, by Mike Pavone
Minor optimization and a cycle count fix to lea
Sun, 06 Jan 2013 12:17:10 -0800, by Mike Pavone
Initialize status register to proper value on startup
Sun, 06 Jan 2013 10:54:45 -0800, by Mike Pavone
Added SMD ROM support
Sun, 06 Jan 2013 09:51:15 -0800, by Mike Pavone
Fix certain address modes with lea when the destination is not a native register
Sat, 05 Jan 2013 22:59:51 -0800, by Mike Pavone
Small fix to disassembler
Sat, 05 Jan 2013 22:59:06 -0800, by Mike Pavone
Fix decoding of movep
Sat, 05 Jan 2013 02:46:55 -0800, by Mike Pavone
Implement more movem modes src
Sat, 05 Jan 2013 02:18:31 -0800, by Mike Pavone
Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst
Sat, 05 Jan 2013 01:55:11 -0800, by Mike Pavone
Fix crash in printf from "crash" function due to lack of clearing rax
Sat, 05 Jan 2013 01:32:40 -0800, by Mike Pavone
FIx movem when src is reg list and dst is not a areg predec mode
Sat, 05 Jan 2013 01:31:28 -0800, by Mike Pavone
Fix predec address mode when used as source
Sat, 05 Jan 2013 00:53:50 -0800, by Mike Pavone
Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction.
Fri, 04 Jan 2013 23:52:20 -0800, by Mike Pavone
Add cycles for Bcc (needs work, but this changes keeps some ROMs from making the emulator unresponsive)
Fri, 04 Jan 2013 23:25:23 -0800, by Mike Pavone
Don't use the native call stack for M68K calls by default
Fri, 04 Jan 2013 23:21:07 -0800, by Mike Pavone
Small fix for bit instructions
Fri, 04 Jan 2013 22:51:01 -0800, by Mike Pavone
Implement access to Z80 RAM
Fri, 04 Jan 2013 21:47:09 -0800, by Mike Pavone
Implement TRAP (untested)
Thu, 03 Jan 2013 22:49:21 -0800, by Mike Pavone
Implement MULU/MULS and DIVU/DIVS
Thu, 03 Jan 2013 22:07:40 -0800, by Mike Pavone
Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed.
Tue, 01 Jan 2013 09:40:17 -0800, by Mike Pavone
Make writes to control and data port block when DMA is in progress
Tue, 01 Jan 2013 07:06:57 -0800, by Mike Pavone
Bail out of disassembly of a particular stream when we hit an invalid instruction
Tue, 01 Jan 2013 07:04:48 -0800, by Mike Pavone
Add hgignore file
Tue, 01 Jan 2013 07:03:52 -0800, by Mike Pavone
Implement most of the "X" instructions
Mon, 31 Dec 2012 20:09:09 -0800, by Mike Pavone
Implement m68k_modified_ret_addr
Mon, 31 Dec 2012 19:17:01 -0800, by Mike Pavone
Comment out some debug printfs
Mon, 31 Dec 2012 18:53:52 -0800, by Mike Pavone
Fix infinite loop bug in sprite rendering
Mon, 31 Dec 2012 18:36:16 -0800, by Mike Pavone
Fix DMA fills to VRAM
Mon, 31 Dec 2012 18:22:25 -0800, by Mike Pavone
Fix DMA in progress flag in VDP status register
Mon, 31 Dec 2012 18:12:08 -0800, by Mike Pavone
Fix label names in disassembler
Mon, 31 Dec 2012 11:56:01 -0800, by Mike Pavone
Properly support references to odd addresses in label generation in disassembler. Add labels for start and interrupts.
Mon, 31 Dec 2012 11:54:27 -0800, by Mike Pavone
Fix VDP reads
Mon, 31 Dec 2012 11:26:57 -0800, by Mike Pavone
Implemented HV counter
Sun, 30 Dec 2012 22:39:41 -0800, by Mike Pavone
Fix some bugs in decoding cmp
Sun, 30 Dec 2012 18:40:33 -0800, by Mike Pavone
Fix 68K->VDP DMA
Sun, 30 Dec 2012 11:54:25 -0800, by Mike Pavone
Improve disassembler
Sun, 30 Dec 2012 09:55:18 -0800, by Mike Pavone
Add support for pc indexed addressing mode to lea
Sun, 30 Dec 2012 09:55:07 -0800, by Mike Pavone
Support more address modes for jmp
Sun, 30 Dec 2012 07:52:44 -0800, by Mike Pavone
Fix bug that was causing DMA fills to lock up under certain circumstances
Sun, 30 Dec 2012 01:15:16 -0800, by Mike Pavone
Make version register return correct value for USA
Sun, 30 Dec 2012 00:11:03 -0800, by Mike Pavone
Fix swap
Sat, 29 Dec 2012 23:40:30 -0800, by Mike Pavone
Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed
Sat, 29 Dec 2012 23:08:14 -0800, by Mike Pavone
Fix crash when printing error message about modified return address
Sat, 29 Dec 2012 23:07:23 -0800, by Mike Pavone
Fix check in translate_m68k_src that deals with instructions for which both operands are registers that are not mapped to a native x86-64 register
Sat, 29 Dec 2012 22:22:53 -0800, by Mike Pavone
Fix encoding of movsx instruction when used with new (i.e. r9-r15) registers. This fixes the indexed addressing modes when used with a word-wide index register
Sat, 29 Dec 2012 22:11:28 -0800, by Mike Pavone
Some fixes for translating code in located in RAM
Sat, 29 Dec 2012 21:55:42 -0800, by Mike Pavone
Implement the rest of the bit instructions
Sat, 29 Dec 2012 21:10:07 -0800, by Mike Pavone
Implemented ROL and ROR
Sat, 29 Dec 2012 20:33:39 -0800, by Mike Pavone
Fix logic for switching between USP and SSP
Sat, 29 Dec 2012 12:52:19 -0800, by Mike Pavone
Fix decoding of CMPA
Fri, 28 Dec 2012 22:47:22 -0800, by Mike Pavone
Fix return address pushed to stack for jsr
Fri, 28 Dec 2012 22:47:10 -0800, by Mike Pavone
cycles should return dst
Fri, 28 Dec 2012 21:36:22 -0800, by Mike Pavone
Fix call_r in gen_x86 so that it properly returns a pointer to the location after the generated instruction
Fri, 28 Dec 2012 21:25:00 -0800, by Mike Pavone
Implement pea (untested).
Fri, 28 Dec 2012 21:20:14 -0800, by Mike Pavone
Fix Z80 busreq logic
Fri, 28 Dec 2012 20:46:29 -0800, by Mike Pavone
Allow jmp/jsr to follow pc-relative addresses in disassembler
Fri, 28 Dec 2012 19:21:05 -0800, by Mike Pavone
Defer the correct address for pc relative jsr/jmp
Fri, 28 Dec 2012 17:59:41 -0800, by Mike Pavone
Implement scc (untested)
Fri, 28 Dec 2012 17:57:43 -0800, by Mike Pavone
Fix decoding of Scc
Fri, 28 Dec 2012 15:34:24 -0800, by Mike Pavone
Implement more address modes for jsr
Fri, 28 Dec 2012 15:16:36 -0800, by Mike Pavone
COmment out fifo full debug printf
Fri, 28 Dec 2012 15:04:22 -0800, by Mike Pavone
Fix horizontal mask values for scroll plane map address calculation
Fri, 28 Dec 2012 15:03:00 -0800, by Mike Pavone
Fix areg indexed mode for move dst
Fri, 28 Dec 2012 14:30:25 -0800, by Mike Pavone
Implement ORI to CCR/SR
Fri, 28 Dec 2012 11:07:13 -0800, by Mike Pavone
Implemented move from SR
Fri, 28 Dec 2012 10:37:09 -0800, by Mike Pavone
Use unsigned comparisons for address decoding, exit when we hit an unhandled addressing mode for jmp
Thu, 27 Dec 2012 23:00:11 -0800, by Mike Pavone
Don't pre-emptively translate code at interrupt vectors as some PD ROMs have these pointing at junk. Need some kind of heuristic for detecting garbage if I'm going to translate them ahead of time by default.
Thu, 27 Dec 2012 22:48:54 -0800, by Mike Pavone
allocate a new native code chunk when we run out of space
Thu, 27 Dec 2012 22:41:28 -0800, by Mike Pavone
Some fixes to add/addx sub/subx decoding
Thu, 27 Dec 2012 22:35:26 -0800, by Mike Pavone
Implement areg indexed mode for lea
Thu, 27 Dec 2012 22:11:26 -0800, by Mike Pavone
Allow use of indexed modes as move dst
Thu, 27 Dec 2012 22:05:22 -0800, by Mike Pavone
Allow indexed modes to be used as a destination
Thu, 27 Dec 2012 21:54:54 -0800, by Mike Pavone
Fix address register indexed addressing (probably)
Thu, 27 Dec 2012 21:32:00 -0800, by Mike Pavone
Fix pc indexed addressing (probably) when used as a source
Thu, 27 Dec 2012 21:23:55 -0800, by Mike Pavone
Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding
Thu, 27 Dec 2012 21:19:58 -0800, by Mike Pavone
Fix decoding bug for addq/subq
Thu, 27 Dec 2012 18:47:33 -0800, by Mike Pavone
Implement EXT, add some fixes to LINK/UNLK
Thu, 27 Dec 2012 18:21:10 -0800, by Mike Pavone
Fix some bugs in emulation of CLR
Thu, 27 Dec 2012 10:40:03 -0800, by Mike Pavone
Fix decoding bug in addq/subq
Thu, 27 Dec 2012 10:10:23 -0800, by Mike Pavone
Fix decoding of and
Wed, 26 Dec 2012 22:13:31 -0800, by Mike Pavone
Minor joypad fix and commeount out some debug printfs
Wed, 26 Dec 2012 22:07:44 -0800, by Mike Pavone
Forgot to add blastem main file earlier
Wed, 26 Dec 2012 21:50:48 -0800, by Mike Pavone
vertical interrupts now work
Wed, 26 Dec 2012 20:18:58 -0800, by Mike Pavone
RTE doesn't crash the emulator anymore
Wed, 26 Dec 2012 18:20:23 -0800, by Mike Pavone
Fix Z80 BUSREQ/RESET implementation.
Wed, 26 Dec 2012 17:50:24 -0800, by Mike Pavone
Fix long reads from IO ports or long reads that trigger sync cycles by saving rdi. Possibly fix word wide IO reads.
Wed, 26 Dec 2012 17:34:59 -0800, by Mike Pavone
Implement Z80 reset and bus request registers.
Wed, 26 Dec 2012 17:06:34 -0800, by Mike Pavone
Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested).
Wed, 26 Dec 2012 11:09:04 -0800, by Mike Pavone
Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode
Sat, 22 Dec 2012 21:37:25 -0800, by Mike Pavone
Fix bug in disassembler that caused it to disassemble addresses it shouldn't
Fri, 21 Dec 2012 22:33:24 -0800, by Mike Pavone
Implement indexed with 8-bit displacement addressing modes in decoder and disassembler
Fri, 21 Dec 2012 22:24:45 -0800, by Mike Pavone
Added untested support for LINK and UNLK
Fri, 21 Dec 2012 21:53:05 -0800, by Mike Pavone
Removed some old debug printfs
Fri, 21 Dec 2012 21:26:16 -0800, by Mike Pavone
Implement JSR for some addressing modes
Fri, 21 Dec 2012 21:19:03 -0800, by Mike Pavone
Implement DMA (untested)
Fri, 21 Dec 2012 20:56:32 -0800, by Mike Pavone
Fix some bugs in movem with a register list destination
Fri, 21 Dec 2012 16:38:40 -0800, by Mike Pavone
Implement a couple of supervisor instructions
Fri, 21 Dec 2012 16:04:41 -0800, by Mike Pavone
Implement word wide access to IO area
Fri, 21 Dec 2012 16:04:30 -0800, by Mike Pavone
Implement more instructions and address modes
Fri, 21 Dec 2012 01:00:52 -0800, by Mike Pavone
Make the translator bail out if it hits an instruction I haven't implemented yet
Thu, 20 Dec 2012 09:17:31 -0800, by Mike Pavone
Fix disassembly of reg list in MOVEM when the reg list is the destination
Thu, 20 Dec 2012 09:12:24 -0800, by Mike Pavone
Fix decoding and disassembly of MOVEM
Thu, 20 Dec 2012 09:08:13 -0800, by Mike Pavone
Fix BTST
Thu, 20 Dec 2012 00:56:33 -0800, by Mike Pavone
Gamepad support
Thu, 20 Dec 2012 00:44:59 -0800, by Mike Pavone
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
Wed, 19 Dec 2012 22:15:16 -0800, by Mike Pavone
Cleanup 68K timing code. Temporarily omment out fFPS counter as it was causing segfaults
Wed, 19 Dec 2012 21:25:39 -0800, by Mike Pavone
Add FPS counter to console output
Wed, 19 Dec 2012 20:53:59 -0800, by Mike Pavone
Print out large immediate values in hex rather than decimal form
Wed, 19 Dec 2012 20:53:45 -0800, by Mike Pavone
Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM.
Wed, 19 Dec 2012 20:23:59 -0800, by Mike Pavone
Fix operand order for AND instructions
Tue, 18 Dec 2012 23:55:10 -0800, by Mike Pavone
ecx was getting clobbered before the relevant temp value was used in some cases during memory reads
Tue, 18 Dec 2012 22:56:04 -0800, by Mike Pavone
Properly zero-init all VDP buffers. Comment out some debug printfs.
Tue, 18 Dec 2012 22:20:25 -0800, by Mike Pavone
Code in runtime for checking for VDP reads was using the wrong register. This is now fixed.
Tue, 18 Dec 2012 22:19:52 -0800, by Mike Pavone
Fix CRAM and possibly VSRAM writes
Tue, 18 Dec 2012 19:51:33 -0800, by Mike Pavone
Add palette debug to SDL renderer
Tue, 18 Dec 2012 19:51:17 -0800, by Mike Pavone
Get Flavio's color bar demo kind of sort of working
Tue, 18 Dec 2012 02:16:42 -0800, by Mike Pavone
Add preliminary support for JMP
Sun, 16 Dec 2012 22:25:29 -0800, by Mike Pavone
Implement CLR, minor refactor of register offset calculation in context struct
Sun, 16 Dec 2012 21:57:52 -0800, by Mike Pavone
Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding.
Sat, 15 Dec 2012 23:01:32 -0800, by Mike Pavone
Fix shift rotate instruction decoding and improve disassembly of move USP and conditional branch instructions
Thu, 13 Dec 2012 09:47:40 -0800, by Mike Pavone
Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations
Wed, 12 Dec 2012 23:21:11 -0800, by Mike Pavone
Don't try to disassemble addresses beyond the end of the cartridge
Wed, 12 Dec 2012 21:25:31 -0800, by Mike Pavone
Fix bug in address visitation in disassembler
Wed, 12 Dec 2012 20:43:42 -0800, by Mike Pavone
Add support for dbcc instruction
Wed, 12 Dec 2012 20:18:06 -0800, by Mike Pavone
Add vector table to test.s68
Wed, 12 Dec 2012 20:17:59 -0800, by Mike Pavone
Add logic for following control flow based on logic in the translator
Wed, 12 Dec 2012 20:17:11 -0800, by Mike Pavone
Add debug render mode and fix vertical flip bit for bg tiles
Sun, 09 Dec 2012 18:40:45 -0800, by Mike Pavone
Fix bug in tile address masking. Remove some debug code from window plane.
Sun, 09 Dec 2012 17:26:36 -0800, by Mike Pavone
More correct window support, maybe
Sun, 09 Dec 2012 17:10:08 -0800, by Mike Pavone
Broken window support
Sun, 09 Dec 2012 17:05:13 -0800, by Mike Pavone
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
Sun, 09 Dec 2012 01:13:41 -0800, by Mike Pavone
Implement sprite index >= sprite limit triggers sprite limit behavior
Sun, 09 Dec 2012 00:03:15 -0800, by Mike Pavone
Initial H32 mode support
Sat, 08 Dec 2012 23:49:51 -0800, by Mike Pavone
Pass all sprite masking tests
Sat, 08 Dec 2012 23:09:40 -0800, by Mike Pavone
Small fix to overflow flag
Sat, 08 Dec 2012 23:06:13 -0800, by Mike Pavone
Improve sprite masking to almost completely pass Nemesis' sprite masking test
Sat, 08 Dec 2012 22:50:14 -0800, by Mike Pavone
Add support for simple resolution scaling
Sat, 08 Dec 2012 22:07:25 -0800, by Mike Pavone
Fix horizontal sprite mirroring
Sat, 08 Dec 2012 21:39:01 -0800, by Mike Pavone
Make horizontal scrolling closer to correct, Comix Zone looks good, Sonic 2 slightly off
Sat, 08 Dec 2012 20:25:56 -0800, by Mike Pavone
Small cleanup
Sat, 08 Dec 2012 20:02:10 -0800, by Mike Pavone
Fix horizontal scroll offset
Sat, 08 Dec 2012 19:59:32 -0800, by Mike Pavone
Fix BG plane B render bug
Sat, 08 Dec 2012 19:42:07 -0800, by Mike Pavone
Fix sprite transparency for overlapping sprites
Sat, 08 Dec 2012 16:58:11 -0800, by Mike Pavone
Fix management of context->sprite_draws so the sprite layer only draws when it should
Sat, 08 Dec 2012 16:46:47 -0800, by Mike Pavone
Fix vertical scroll value for plane B
Sat, 08 Dec 2012 16:16:18 -0800, by Mike Pavone
Partially fix BG plane B
Sat, 08 Dec 2012 16:09:43 -0800, by Mike Pavone
Fix endianness of VSRAM when read from Genecyst save state
Sat, 08 Dec 2012 16:02:17 -0800, by Mike Pavone
Sprites fixed, working on bg planes
Sat, 08 Dec 2012 11:59:50 -0800, by Mike Pavone
Sprites somewhat less broken
Sat, 08 Dec 2012 11:12:17 -0800, by Mike Pavone
Mostly broken VDP core and savestate viewer
Sat, 08 Dec 2012 02:00:54 -0800, by Mike Pavone
Initial support for M68k reset vector, rather than starting at an arbitrary address
Tue, 04 Dec 2012 19:25:54 -0800, by Mike Pavone
M68K to x86 translation works for a limited subset of instructions and addressing modes
Tue, 04 Dec 2012 19:13:12 -0800, by Mike Pavone
Add asssembly runtime code stub
Tue, 27 Nov 2012 22:54:38 -0800, by Mike Pavone
Add Makefile
Tue, 27 Nov 2012 22:50:09 -0800, by Mike Pavone
Make x86 generator generic with respect to operand size for immediate parameters.
Tue, 27 Nov 2012 22:43:32 -0800, by Mike Pavone
x86 code gen, initial work on translator
Tue, 27 Nov 2012 09:28:13 -0800, by Mike Pavone
Improve disassembly. FIx some decoding bugs.
Thu, 15 Nov 2012 22:15:43 -0800, by Mike Pavone
Add mising bit instructions to decoder. Add test assembly file containing most distinct instructions.
Thu, 15 Nov 2012 00:52:53 -0800, by Mike Pavone
Implement OR_DIV_SBCD group in decoder
Wed, 14 Nov 2012 23:04:55 -0800, by Mike Pavone
Added new OPSIZE for unsized instructions so they can be properly disassembled without making them special cases
Wed, 14 Nov 2012 09:24:40 -0800, by Mike Pavone
Implement (possibly broken) decoding of all M68000 instructions not in the OR_DIV_SBCD group
Tue, 13 Nov 2012 18:26:43 -0800, by Mike Pavone
Finish bit/movep/immediate group except for 68020 instructions
Fri, 09 Nov 2012 22:01:26 -0800, by Mike Pavone
merge
Tue, 06 Nov 2012 02:07:45 -0800, by Mike Pavone
Add some logic analyzer captures, a Python script for analyzing said captures and a higher level analysis of the output
Tue, 06 Nov 2012 01:57:36 -0800, by Mike Pavone
More bit and immediate instructions
Tue, 06 Nov 2012 02:04:42 -0800, by Mike Pavone
Add support for some bit instructions and a few others in the same "category"
Sun, 04 Nov 2012 23:43:03 -0800, by Mike Pavone
Finish mulu.w, muls.w and abcd parameter decoding
Sat, 03 Nov 2012 22:15:55 -0700, by Mike Pavone
Improve 68K instruction decoding. Add simple disassembler.
Sat, 03 Nov 2012 21:38:28 -0700, by Mike Pavone
Make sure all operations are long-word length on fib example.
Sat, 03 Nov 2012 21:37:38 -0700, by Mike Pavone
Initial work on M68K instruction decoding
Mon, 29 Oct 2012 01:18:38 -0700, by Mike Pavone

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