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Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Sat, 03 Jan 2015 18:23:04 -0800, by Michael Pavone
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Sat, 03 Jan 2015 16:08:23 -0800, by Michael Pavone
In theory, the Z80 core should work on 32-bit builds now; however, I suspect there is some code that cannot deal with most of the Z80 registers not having a native register so more work will be needed
Fri, 02 Jan 2015 13:47:34 -0800, by Michael Pavone
Added functions to gen_x86 for saving and restoring callee save registers to better abstract over ABI differences between x86 and x86-64
Fri, 02 Jan 2015 13:14:09 -0800, by Michael Pavone
Use SZ_PTR instead of SZ_Q in Z80 core for 32-bit compat
Fri, 02 Jan 2015 12:04:58 -0800, by Michael Pavone
Sync Z80 when taking an interrupt so that int_cycle gets updated
Fri, 02 Jan 2015 00:19:10 -0800, by Michael Pavone
Remove dedicated registers for Z80 bank reg and Z80 bank pointer as they are no longer used
Thu, 01 Jan 2015 23:37:24 -0800, by Michael Pavone
Adjust 68K sync cycle when mclk_target gets adjusted
Thu, 01 Jan 2015 22:52:18 -0800, by Michael Pavone
Add the 3 cycle delay back in to Z80 bank area access
Thu, 01 Jan 2015 22:18:32 -0800, by Michael Pavone
Minor Z80 core cleanup
Thu, 01 Jan 2015 20:26:22 -0800, by Michael Pavone
Use call_args and call_args_abi inside gen_mem_fun
Thu, 01 Jan 2015 20:21:20 -0800, by Michael Pavone
Use call_args and call_args_abi in Z80 core
Thu, 01 Jan 2015 20:07:47 -0800, by Michael Pavone
Added 2 new functions to gen_x86.c for handling passing args according to the C abi of the host system and adapted the code in m68k_core_x86.c to use that instead of doing everything by hand
Thu, 01 Jan 2015 19:15:05 -0800, by Michael Pavone
Avoid calling atexit(SDL_Quit) until after OpenGL initialization to avoid a segfault on exit when using fglrx
Thu, 01 Jan 2015 17:36:23 -0800, by Michael Pavone
Fix some issues with 68K instruction retranslation
Thu, 01 Jan 2015 17:31:59 -0800, by Michael Pavone
Remove some of the hard coded assumptions about the memory map from the CPU cores
Thu, 01 Jan 2015 14:36:55 -0800, by Michael Pavone
Merge
Tue, 30 Dec 2014 19:11:34 -0800, by Michael Pavone
Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Tue, 16 Dec 2014 01:10:54 -0800, by Michael Pavone
Set the busy flag after a YM-2612 address write
Tue, 16 Dec 2014 01:05:00 -0800, by Michael Pavone
Added HV counter test ROM source
Sun, 14 Dec 2014 18:17:29 -0800, by Michael Pavone
Remove object file that was accidentally added
Sun, 14 Dec 2014 18:16:14 -0800, by Michael Pavone
Fix the HV counter and adjust the slots of certain VDP events
Sun, 14 Dec 2014 18:14:50 -0800, by Michael Pavone
Produce a listing file when assembling 68K test ROMs
Sun, 14 Dec 2014 18:12:00 -0800, by Michael Pavone
Initial support for configurable IO, custom IO and sega transfer board emulation
Wed, 03 Dec 2014 09:32:32 -0800, by Michael Pavone
Temporarily comment out code to translate Z80 instructions in place as in rare cases it can stomp the next instruction if a branch goes from a short from to a long one
Wed, 03 Dec 2014 09:30:01 -0800, by Michael Pavone
Unbreak PC indexed addressing modes in decoder
Wed, 03 Dec 2014 09:26:07 -0800, by Michael Pavone
Fix interpretation of moves direction field
Wed, 15 Oct 2014 00:30:19 -0700, by Michael Pavone
Fix decoding of movec
Wed, 15 Oct 2014 00:26:57 -0700, by Michael Pavone
Add equates for address references below address_off
Tue, 14 Oct 2014 22:17:42 -0700, by Michael Pavone
Ignore odd addresses in calls to defer in disassembler
Tue, 14 Oct 2014 21:58:17 -0700, by Michael Pavone
Add support for 68020 addressing modes in decoder and disassembler
Tue, 14 Oct 2014 21:58:03 -0700, by Michael Pavone
Tiny bit of work towards supporting 68020 addressing modes in decoder/disassembler
Sun, 12 Oct 2014 23:55:25 -0700, by Michael Pavone
Add support for 68020 bitfield instructions
Sun, 12 Oct 2014 19:03:05 -0700, by Michael Pavone
Fix logic for automatic label generation.
Sun, 12 Oct 2014 19:02:47 -0700, by Michael Pavone
Better support for labels sourced from VOS program module header
Sat, 11 Oct 2014 22:18:49 -0700, by Michael Pavone
Fix translation of 68K address to buffer location when address_off != 0
Sat, 11 Oct 2014 21:42:33 -0700, by Michael Pavone
Add -r option to indicate VOS program module contains a 68K reset vector
Sat, 11 Oct 2014 21:20:02 -0700, by Michael Pavone
Add support for disassembling VOS program modules
Sat, 11 Oct 2014 20:32:17 -0700, by Michael Pavone
Improve support for disassembling 68010+ binaries
Wed, 08 Oct 2014 22:18:34 -0700, by Michael Pavone
Small fix to display of DMA source address in vr debug command
Thu, 14 Aug 2014 09:38:32 -0700, by Michael Pavone
Fix Z80 interrupts
Sat, 21 Jun 2014 09:36:15 -0700, by Michael Pavone
Added some preliminary support for interpreting Z80 code from non-RAM addresses
Fri, 20 Jun 2014 07:57:32 -0700, by Michael Pavone
Properly handle Z80 breakpoints on self-modifying code and setting Z80 breakpoints before the Z80 program has been loaded
Thu, 19 Jun 2014 19:50:16 -0700, by Michael Pavone
Slight cleanup of vint handling on the Z80
Thu, 19 Jun 2014 08:14:35 -0700, by Michael Pavone
Remove debug printf that escaped into my previous commit
Wed, 18 Jun 2014 16:39:42 -0700, by Michael Pavone
Fix most of the breakage caused by the vcounter/hcounter changes
Wed, 18 Jun 2014 16:30:19 -0700, by Michael Pavone
Partially working switch to having a vcounter and hslot counter in the context rather than trying to derive them from the cycle count. This should allow for more accurate handling of mid screen mode switches. Interrupt timing is broken currently though
Tue, 17 Jun 2014 19:01:01 -0700, by Michael Pavone
Fix a few values reported by the vr debugger command. Add DMA registers to vr debugger command. Fix horizontal interrupt bug. Slightly more accurate (but still broken) handling of switches between H32 and H40 modes.
Mon, 16 Jun 2014 19:13:28 -0700, by Michael Pavone
Fix handling of code writes for Z80 core. This seems to get things close to being back to where they were before the big refactor that broke the Z80 core. Some problems remain. Notably the sound driver in Sonic 2 is still quite broken.
Mon, 29 Dec 2014 23:08:39 -0800, by Michael Pavone
Added support for JR and JRcc in Z80 test generator
Mon, 29 Dec 2014 21:36:17 -0800, by Michael Pavone
Added support for JPcc in Z80 test generator
Mon, 29 Dec 2014 21:24:12 -0800, by Michael Pavone
Added support for JP in Z80 test generator
Mon, 29 Dec 2014 20:56:05 -0800, by Michael Pavone
Add support for Z80 access to VDP via bank area
Mon, 29 Dec 2014 00:41:36 -0800, by Michael Pavone
Update .hgignore
Mon, 29 Dec 2014 00:14:33 -0800, by Michael Pavone
Fix flag mask for m68k not
Mon, 29 Dec 2014 00:14:21 -0800, by Michael Pavone
Fix opsize for sbcd in 68K instruction decoder. This fixes the timer bug in Strider 2
Sun, 28 Dec 2014 17:58:43 -0800, by Michael Pavone
Removed bcd_add and bcd_sub from runtime.S and generated the logic inline with the rest of abcd and sbcd translation. Fixed some edge cases and undefined flag behavior in the process
Sun, 28 Dec 2014 17:25:36 -0800, by Michael Pavone
Fix divide by zero exception return address when div instruction is bigger than 1 word
Sat, 27 Dec 2014 15:49:15 -0800, by Michael Pavone
Decrement address register after fetching source in move with -(ax) dest to avoid bug when src is the dst addres reg
Sat, 27 Dec 2014 14:51:50 -0800, by Michael Pavone
Uncomment 68000 testcases
Sat, 27 Dec 2014 14:50:50 -0800, by Michael Pavone
Don't use out of bounds displacements in indexed mode even if our targeted address is out of RAM range
Sat, 27 Dec 2014 14:50:28 -0800, by Michael Pavone
Fix memory map flags in ztestrun
Fri, 26 Dec 2014 21:26:25 -0800, by Michael Pavone
Fix mask for bank area in Z80 memory map
Fri, 26 Dec 2014 20:46:56 -0800, by Michael Pavone
Fix a bug in ori to SR that was swapping USP and SSP inappropriately
Fri, 26 Dec 2014 19:38:27 -0800, by Michael Pavone
Get Z80 banked access sort of working again
Fri, 26 Dec 2014 19:37:59 -0800, by Michael Pavone
Fix reg-indirect mode for RBP/R13
Fri, 26 Dec 2014 19:36:41 -0800, by Michael Pavone
Set int_cycle to CYCLE_NEVER in sync_z80 so that the interrupt routine isn't taken inappropriately now that the kludge in handle_cycle_limit_int has been removed
Fri, 26 Dec 2014 15:46:53 -0800, by Michael Pavone
Fix a few bugs introduced in the Z80 core from the adjustments to fit with the code gen refactor
Fri, 26 Dec 2014 15:45:31 -0800, by Michael Pavone
Add Z80 test runner Python script I wrote a while back and forgot to commit
Fri, 26 Dec 2014 13:42:25 -0800, by Michael Pavone
Update .hgignore
Fri, 26 Dec 2014 13:41:45 -0800, by Michael Pavone
Fix an off-by-one error in a branch destination in the generation of handle_cycle_limit for the Z80
Fri, 26 Dec 2014 12:56:53 -0800, by Michael Pavone
Update code->cur before calling z80_get_address_trans in z80_retranslate_inst to avoid any newly translated instructions from being placed in the "buffer zone". Save the current value of the code_info struct for placing the final jmp instruction in the correct place
Fri, 26 Dec 2014 12:52:13 -0800, by Michael Pavone
Set the byte_swap flag in the M68K core so gen_mem_fun correctly inserts xor instructions for byte access functions
Fri, 26 Dec 2014 12:37:27 -0800, by Michael Pavone
Add a couple of missing checks for the byte_swap and address_size parameters in gen_mem_fun
Fri, 26 Dec 2014 12:36:54 -0800, by Michael Pavone
Add in missing generated Z80 helper functions. Fix a small bug in Z80_HALT. Fix generation of save and load context for Z80
Fri, 26 Dec 2014 12:34:41 -0800, by Michael Pavone
Z80 core is sort of working again
Mon, 22 Dec 2014 20:55:10 -0800, by Michael Pavone
Get rest of emulator compiling again with Z80 core enabled
Wed, 17 Dec 2014 23:03:19 -0800, by Michael Pavone
Get Z80 core back into compileable state
Wed, 17 Dec 2014 09:53:51 -0800, by Michael Pavone
WIP effort to update z80 core for code gen changes
Sun, 14 Dec 2014 16:45:23 -0800, by Michael Pavone
Split gen_mem_fun out of m68k_core_x86 and make it more generic so it can be used by the Z80 core
Tue, 11 Mar 2014 09:44:47 -0700, by Michael Pavone
Move translate_m68k_movem to m68k_core.c
Sat, 08 Mar 2014 00:15:09 -0800, by Michael Pavone
Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Fri, 07 Mar 2014 23:26:46 -0800, by Michael Pavone
Minor refactor to translate_m68k_move_ccr_sr and translate_m68k_stop to reduce code duplication
Fri, 07 Mar 2014 19:45:05 -0800, by Michael Pavone
Use swap_ssp_usp in translate_m68k_move_ccr_sr
Fri, 07 Mar 2014 19:39:51 -0800, by Michael Pavone
Combine andi ccr/sr and ori ccr/sr.
Fri, 07 Mar 2014 19:35:13 -0800, by Michael Pavone
Use update_flags instead of individual set_flag calls in a few places
Fri, 07 Mar 2014 17:51:40 -0800, by Michael Pavone
Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Fri, 07 Mar 2014 17:42:29 -0800, by Michael Pavone
Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Wed, 05 Mar 2014 19:26:53 -0800, by Michael Pavone
Refactor translate_m68k_cmp to use translate_m68k_arith
Wed, 05 Mar 2014 09:33:50 -0800, by Michael Pavone
Combine the implementation of ABCD and SBCD in the 68K core
Tue, 04 Mar 2014 22:35:01 -0800, by Michael Pavone
Use translate_m68k_unary for SWAP in 68K core
Tue, 04 Mar 2014 22:24:08 -0800, by Michael Pavone
Refactor a bunch of the arithmetic instructions in the 68K core to reduce duplicate code
Tue, 04 Mar 2014 22:12:43 -0800, by Michael Pavone
Small refactor to flag handling in 68K core
Tue, 04 Mar 2014 00:02:20 -0800, by Michael Pavone
Remove jmp_r from gen_x86.h since it got added to gen.h
Mon, 03 Mar 2014 22:22:36 -0800, by Michael Pavone
More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Mon, 03 Mar 2014 22:17:20 -0800, by Michael Pavone
Enable link time optimization
Mon, 03 Mar 2014 22:16:41 -0800, by Michael Pavone
Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
Mon, 03 Mar 2014 21:08:43 -0800, by Michael Pavone
Refactor translat_m68k_src and translate_m68k_dst into a single function
Sun, 02 Mar 2014 17:53:32 -0800, by Michael Pavone
Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Sun, 02 Mar 2014 16:34:29 -0800, by Michael Pavone
Rename x86_68k_options and m68k_to_x86.h to m68k_options and m68k_core.h respectively
Sun, 02 Mar 2014 15:25:52 -0800, by Michael Pavone
Small Makefile change that was missed in the last commit
Sun, 02 Mar 2014 14:46:55 -0800, by Michael Pavone
Refactor gen_x86 to use an interface more like gen_arm and to remove the need for the caller to decide whether an 8-bit or 32-bit displacement is needed in the rdisp functions. Update m68k_to_x86 to use the new version of the gen_x86 functions and do some minor refactoring there in the process
Sun, 02 Mar 2014 14:45:36 -0800, by Michael Pavone
Add backtrace (bt) command to 68K debugger
Sun, 02 Mar 2014 14:41:43 -0800, by Michael Pavone
Add a separate flag/define for disabling the Z80 at compile time to ease refactoring
Sat, 01 Mar 2014 17:11:06 -0800, by Michael Pavone
Fix PC displacement mode check in disassembler so that jmps involving a register are handled correctly
Sat, 01 Mar 2014 17:07:33 -0800, by Michael Pavone
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Mon, 24 Feb 2014 09:55:24 -0800, by Michael Pavone
Ensure proper stack alignment when the Z80 calls into C code. This fixes a crash in optimized builds on OSX
Mon, 23 Jun 2014 13:12:04 -0400, by Mike Pavone
Save and restore guest address in the write function for a code memory chunk in the "slow" path for inconvenient host addresses. This fixes an intermittent crash on OSX in the code that checks whether the memory written may contain code
Mon, 23 Jun 2014 11:46:56 -0400, by Mike Pavone
Fix x86_rrindex_sizedir. Pass the correct scale to mov_rindexr in gen_mem_fun. BlastEm now sort of works on OS X. Runs reliably from lldb, but only intermittently from the shell
Mon, 23 Jun 2014 11:05:55 -0400, by Mike Pavone
blastem builds and almost works on OS X now
Tue, 17 Jun 2014 01:50:29 -0400, by Mike Pavone
Use a typedef code_ptr in place of uint8_t * in 68K core to better support host instruction sets with different instruction word sizes. Make x86_68k_options contain a cpu_options so that gen_mem_fun can eventually be shared with the Z80 core.
Mon, 24 Feb 2014 01:30:16 -0800, by Mike Pavone
Rename x86_backend.h and x86_backend.c to backend.h and backend.c respectively
Mon, 24 Feb 2014 00:50:15 -0800, by Mike Pavone
Fix build breakage
Mon, 24 Feb 2014 00:40:32 -0800, by Michael Pavone
Start work on refactoring some of the backend code to allow more sharing between M68K and Z80 cores and possibly also between x86 and the ARM backend when it exists
Mon, 24 Feb 2014 00:39:02 -0800, by Michael Pavone
Fix ARM code generation and test program
Sun, 23 Feb 2014 22:17:43 -0800, by Michael Pavone
Added untested code for generating ARM machine code
Sun, 23 Feb 2014 21:37:19 -0800, by Mike Pavone
Fix typo in Makefile
Sun, 23 Feb 2014 11:52:13 -0800, by Mike Pavone
Fix type mismatch on headless global that was causing a crash in the vgm player on ARM
Wed, 19 Feb 2014 00:44:19 -0800, by Michael Pavone
Apart from the Z80 core, BlastEm now supports 32-bit x86
Wed, 19 Feb 2014 00:22:27 -0800, by Michael Pavone
Properly null terminate string returned by readlink in util.c
Tue, 18 Feb 2014 23:19:07 -0800, by Michael Pavone

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