log

age author description
Thu, 09 May 2013 00:33:06 -0700 Mike Pavone Set the N flag to the correct value for DEC instructions
Thu, 09 May 2013 00:30:55 -0700 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 00:17:12 -0700 Mike Pavone Correctly set the N flag for SBC
Thu, 09 May 2013 00:14:54 -0700 Mike Pavone Deal with the fact that there's no 8-bit version of the BT family of instructions on x86
Wed, 08 May 2013 23:44:49 -0700 Mike Pavone Complete flag behavior for Z80 BIT instruction
Wed, 08 May 2013 23:31:19 -0700 Mike Pavone Properly handle negative displacements in Z80 core
Wed, 08 May 2013 23:29:21 -0700 Mike Pavone Contrary to the official documenation, OR and AND also set PV based on parity instead of overflow
Wed, 08 May 2013 23:20:41 -0700 Mike Pavone Set PV flag based on parity, not overflow for XOR
Wed, 08 May 2013 23:17:54 -0700 Mike Pavone BIT was setting the zero flag to the opposite of what it should have. This is now fixed.
Wed, 08 May 2013 23:12:08 -0700 Mike Pavone More fixes for confusion between Z80_UNUSED and MODE_UNUSED
Wed, 08 May 2013 23:03:18 -0700 Mike Pavone Compare src_op.mode with the correct constant in shift/rotate instructions
Wed, 08 May 2013 22:49:50 -0700 Mike Pavone Fix IX/IY register selection when the direction bit is set
Wed, 08 May 2013 22:46:03 -0700 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 22:45:29 -0700 Mike Pavone Fix handling of instructions that combine an IX/IY displacement with another prefix in test generator
Wed, 08 May 2013 22:43:31 -0700 Mike Pavone Fix printing of negative displacements in Z80 disassembler
Wed, 08 May 2013 21:02:33 -0700 Mike Pavone Fix encoding of "extended" instructions in Z80 test generator
Wed, 08 May 2013 17:39:13 -0700 Mike Pavone Fix stupid copy-pasta bug in XOR
Wed, 08 May 2013 17:32:28 -0700 Mike Pavone Fix byte order of pop AF
Wed, 08 May 2013 17:05:12 -0700 Mike Pavone Cleanup reg printing in z80 test runner
Wed, 08 May 2013 14:40:48 -0700 Mike Pavone Added z80 test generator and z80 test runner.
Mon, 06 May 2013 00:57:56 -0700 Mike Pavone Make sure all rendering operations mask CRAM with 0xEEE before using it
Mon, 06 May 2013 00:54:58 -0700 Mike Pavone Implement writes from Z80 to YM-2612
Mon, 06 May 2013 00:22:24 -0700 Mike Pavone Hopefully more correct implementation of the Z80 busack status
Sun, 05 May 2013 22:56:42 -0700 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 11:17:37 -0700 Mike Pavone Implement RRD and implement flags on RLD
Sat, 04 May 2013 18:51:53 -0700 Mike Pavone Implemente RLD
Sat, 04 May 2013 16:23:28 -0700 Mike Pavone Implement HALT (sort of tested)
Sat, 04 May 2013 15:58:15 -0700 Mike Pavone Implement IN and OUT (untested)
Sat, 04 May 2013 15:15:55 -0700 Mike Pavone Implement RETI and RETN (untested). Cleanup tests for "terminal" instructions.
Sat, 04 May 2013 14:36:50 -0700 Mike Pavone Remove deferred address entries from abandoned translations inside z80_retrans_inst
Fri, 03 May 2013 21:22:36 -0700 Mike Pavone Save context in z80_do_sync
Fri, 03 May 2013 21:09:48 -0700 Mike Pavone Fix bank register update
Fri, 03 May 2013 20:18:28 -0700 Mike Pavone Fix native address lookup in bannked memory area
Fri, 03 May 2013 20:15:23 -0700 Mike Pavone Use hex where appropriate in disassembler
Fri, 03 May 2013 19:27:32 -0700 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 18:50:16 -0700 Mike Pavone Fix crash bug in Z80 interrupt support
Fri, 03 May 2013 18:49:48 -0700 Mike Pavone Implement shift instructions (untested)
Thu, 02 May 2013 22:39:39 -0700 Mike Pavone Implement CPL and NEG (untested)
Thu, 02 May 2013 22:28:40 -0700 Mike Pavone Implement LDD and LDDR
Thu, 02 May 2013 22:26:47 -0700 Mike Pavone Implement LDI
Thu, 02 May 2013 22:21:41 -0700 Mike Pavone Protect debug prints for busreq/reset regs with appropriate macros
Thu, 02 May 2013 22:18:33 -0700 Mike Pavone Fix decoding of CP.
Thu, 02 May 2013 22:18:22 -0700 Mike Pavone Fix IX/IY displace modes. Fix check for registers requiring REX.
Thu, 02 May 2013 21:54:04 -0700 Mike Pavone Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Thu, 02 May 2013 00:10:24 -0700 Mike Pavone Don't mix *H regs with the REX prefix
Wed, 01 May 2013 23:12:29 -0700 Mike Pavone Fix some more retranslation bugs in the Z80 core
Wed, 01 May 2013 20:15:33 -0700 Mike Pavone Add -n flag for disabling the Z80 core
Wed, 01 May 2013 20:09:53 -0700 Mike Pavone Fix a crash bug in instruction retranslation
Tue, 30 Apr 2013 20:36:15 -0700 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 20:33:30 -0700 Mike Pavone Implement ld to and from the I and R registers
Tue, 30 Apr 2013 01:00:10 -0700 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 00:39:31 -0700 Mike Pavone Initial stab at integartiong Z80 core
Tue, 30 Apr 2013 00:39:20 -0700 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 00:37:30 -0700 Mike Pavone Fix infinite loop in Z80 disassembler
Mon, 29 Apr 2013 23:02:39 -0700 Mike Pavone Implement CCF and SCF
Mon, 29 Apr 2013 22:58:45 -0700 Mike Pavone Fix decoding of address in JP and JPCC instructions in the Z80 core
Mon, 29 Apr 2013 22:52:05 -0700 Mike Pavone Properly handle wrapping around to 0 in translate_z80_stream
Mon, 29 Apr 2013 22:37:47 -0700 Mike Pavone Fix bug in end condition inside translate_z80_stream.
Mon, 29 Apr 2013 22:32:21 -0700 Mike Pavone Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mon, 29 Apr 2013 21:46:48 -0700 Mike Pavone Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mon, 29 Apr 2013 01:14:24 -0700 Mike Pavone Fix target cycle count after 68K interrupt
Mon, 29 Apr 2013 00:59:50 -0700 Mike Pavone Implemented basic interrupt support in Z80 core.
Mon, 29 Apr 2013 00:59:32 -0700 Mike Pavone Forgot to commit zruntime a while back, adding it now.
Sun, 28 Apr 2013 23:25:18 -0700 Mike Pavone Implement ADC and SBC in Z80 core (untested)
Sun, 28 Apr 2013 22:41:30 -0700 Mike Pavone Implement rotation and bit set/reset instructions (untested).
Sun, 28 Apr 2013 21:00:27 -0700 Mike Pavone Implement RETCC in Z80 core.
Sun, 28 Apr 2013 21:00:16 -0700 Mike Pavone Implement cartridge rom loading in transz80
Sun, 28 Apr 2013 18:53:43 -0700 Mike Pavone Implement cycle limit in Z80 core.
Sun, 28 Apr 2013 14:32:45 -0700 Mike Pavone Implement EI, DI and IM in the Z80 core
Sun, 28 Apr 2013 14:05:02 -0700 Mike Pavone Implemente CP (untested)
Sun, 28 Apr 2013 13:45:17 -0700 Mike Pavone Implement EX, EXX and RST in Z80 core
Sun, 28 Apr 2013 13:45:00 -0700 Mike Pavone Add header dependencies to offsets
Fri, 26 Apr 2013 22:27:17 -0700 Mike Pavone Implement BIT and DJNZ (tested). Fix register mapping for IYL.
Fri, 26 Apr 2013 09:51:57 -0700 Mike Pavone Added the rest of the conditions to JPCC, implemented CALLCC (untested)
Fri, 26 Apr 2013 09:51:13 -0700 Mike Pavone Added key to save Z80 RAM to a file
Thu, 25 Apr 2013 22:49:36 -0700 Mike Pavone Implement more Z80 instructions (untested)
Thu, 25 Apr 2013 21:01:11 -0700 Mike Pavone Get Z80 core working for simple programs
Mon, 22 Apr 2013 23:56:13 -0700 Mike Pavone Add shadow/higlight info to debug renderer
Mon, 22 Apr 2013 23:34:39 -0700 Mike Pavone Less broken implementation of shadow/highlight
Mon, 22 Apr 2013 21:24:50 -0700 Mike Pavone Shadow and higlight operators were switched
Mon, 22 Apr 2013 20:13:07 -0700 Mike Pavone Added todo list
Mon, 22 Apr 2013 19:39:38 -0700 Mike Pavone Implemented shadow hilight mode.
Sun, 21 Apr 2013 19:12:48 -0700 Mike Pavone Improve color rendering accuracy and optimize SDL renderer a bit
Sun, 21 Apr 2013 16:44:46 -0700 Mike Pavone Fix overflow detection in divs. Fix negative immediate source for divs
Sun, 21 Apr 2013 16:44:10 -0700 Mike Pavone Added test cases for divs/divu and added divide by zero handler to test generator
Sun, 21 Apr 2013 13:00:34 -0700 Mike Pavone Implement CHK instruction (not fully tested).
Sun, 21 Apr 2013 11:42:45 -0700 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 11:40:18 -0700 Mike Pavone Added testcases for move and roxl/roxr. Made some small improvements to test tools.
Sat, 20 Apr 2013 17:41:07 -0700 Mike Pavone Fix muls with a negative immediate source.
Sat, 20 Apr 2013 17:32:34 -0700 Mike Pavone Added testcases for muls, mulu, abcd and sbcd
Sat, 20 Apr 2013 16:53:01 -0700 Mike Pavone Fix modulo on bit operations with a memory destination
Sat, 20 Apr 2013 15:14:47 -0700 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 14:36:41 -0700 Mike Pavone Fix overflow flag behavior for lsl/lsr/asr
Sat, 20 Apr 2013 00:36:50 -0700 Mike Pavone Fix autoincrement on a7 when used as a destination in a byte sized instruction
Sat, 20 Apr 2013 00:29:14 -0700 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.
Fri, 19 Apr 2013 21:36:54 -0700 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 21:36:00 -0700 Mike Pavone Added headless flag to avoid initializing SDL and opening a window when running tests.
Fri, 19 Apr 2013 09:29:37 -0700 Mike Pavone Add test generator, builder and runner
Tue, 16 Apr 2013 22:29:00 -0700 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 09:38:30 -0700 Mike Pavone Fixed up trans for changes to translate_m68k_stream, but still need to deal with missing callbacks.
Tue, 16 Apr 2013 09:31:21 -0700 Mike Pavone Small bit of cleanup
Sun, 27 Jan 2013 13:07:26 -0800 Mike Pavone Fix movem reg to mem for certain addressing modes
Sat, 26 Jan 2013 02:47:26 -0800 Mike Pavone Flag fixes for div, negx and not
Sat, 26 Jan 2013 01:33:32 -0800 Mike Pavone Tweaks to make blastem compatible with m68k-tester
Fri, 25 Jan 2013 18:39:22 -0800 Mike Pavone Fix overflow flag on ASL
Wed, 23 Jan 2013 21:54:58 -0800 Mike Pavone Add support for IY bit instructions to decoder
Wed, 23 Jan 2013 21:50:54 -0800 Mike Pavone Add support for IX bit instructions to decoder
Tue, 22 Jan 2013 20:24:14 -0800 Mike Pavone Add support for 2-byte IY instructions to decoder
Tue, 22 Jan 2013 20:21:05 -0800 Mike Pavone Add support for 2-byte IX instructions to decoder
Mon, 21 Jan 2013 21:59:09 -0800 Mike Pavone Distinguish between 1-byte and 2-byte NOPs
Mon, 21 Jan 2013 21:17:52 -0800 Mike Pavone Add support for bit instructions to decoder
Sun, 20 Jan 2013 21:32:13 -0800 Mike Pavone Add support for EXTD group 2-byte Z80 instructions in decoder
Sun, 20 Jan 2013 19:11:24 -0800 Mike Pavone Add initial stab at Z80 decoder and disassembler
Sun, 20 Jan 2013 19:10:29 -0800 Mike Pavone Add support for breaking into the debugger while game is running
Thu, 17 Jan 2013 20:00:07 -0800 Mike Pavone Add instruction address logging to translator and support for reading an address log to the disassembler
Thu, 17 Jan 2013 08:19:29 -0800 Mike Pavone Implement pc indexed mode as move dst
Wed, 16 Jan 2013 22:50:02 -0800 Mike Pavone Fix 6-button controller emulation
Wed, 16 Jan 2013 22:40:56 -0800 Mike Pavone Implement ABCD an SBCD. Fix BTEST with register source.
Tue, 15 Jan 2013 00:14:36 -0800 Mike Pavone Implement support for self-modifying code
Mon, 14 Jan 2013 21:56:54 -0800 Mike Pavone Prep work for handling games that modify code in RAM