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2015-05-26Fixes for the 32-bit build accidentally introduced a bug into the 64-bit ↵Michael Pavone
build, this commit fixes the regression
2015-05-25Add a define in both the source and Makefile for enabling logging of z80 ↵Michael Pavone
instruction address/cycle counts. Fix Z80 in/out instructions to eliminate assumptions about which registers are stored in native regs. Fix read_16 to not corrupt the low byte when the read has to call into a C function.
2015-05-25Fix RLD and RRD for the case in which HL does not map to a native registerMichael Pavone
2015-05-24Z80 test cases that passed on 64-bit now pass on 32-bitMichael Pavone
2015-05-24More bugfixes for the 32-bit build of the Z80 coreMichael Pavone
2015-05-23Fix a bunch of assumptions about which Z80 registers are stored in native ↵Michael Pavone
registers to make the x86-32 build less broken
2015-05-17Make sure z80_save_reg does nothing when there is no register in the reg ↵Michael Pavone
field of the instruction. This fixes a bug that corrupted SP in the MDEM 2011 demo
2015-05-17Call z80_handle_deferred after generating an insruction handler so that ↵Michael Pavone
instructions like rst work correctly
2015-05-17Fix crash bug in Z80 interpreterMichael Pavone
2015-05-12Save PC to context struct when syncing Z80 at instruction start. This fixes ↵Michael Pavone
saving savestates and probably the Z80 debugger as well
2015-05-11Remove/comment verbose logging added for tracking down sync bugMichael Pavone
2015-05-11Sync fixes and logging to fix more sync issuesMichael Pavone
2015-01-04MergeMichael Pavone
2015-01-03When going directly from reset to busreq, do not allow the Z80 to runMichael Pavone
2015-01-03Restore Z80 interrupt pulse duration and make a small improvement to debug ↵Michael Pavone
print output
2015-01-03Made the Z80 core more contained by refactoring some code in blastem.c into ↵Michael Pavone
z80_to_x86.c
2015-01-03All cycle counters are now based off the master clock. This seems to have ↵Michael Pavone
messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
2015-01-02In theory, the Z80 core should work on 32-bit builds now; however, I suspect ↵Michael Pavone
there is some code that cannot deal with most of the Z80 registers not having a native register so more work will be needed
2015-01-02Added functions to gen_x86 for saving and restoring callee save registers to ↵Michael Pavone
better abstract over ABI differences between x86 and x86-64
2015-01-02Use SZ_PTR instead of SZ_Q in Z80 core for 32-bit compatMichael Pavone
2015-01-02Sync Z80 when taking an interrupt so that int_cycle gets updatedMichael Pavone
2015-01-01Remove dedicated registers for Z80 bank reg and Z80 bank pointer as they are ↵Michael Pavone
no longer used
2015-01-01Add the 3 cycle delay back in to Z80 bank area accessMichael Pavone
2015-01-01Minor Z80 core cleanupMichael Pavone
2015-01-01Use call_args and call_args_abi in Z80 coreMichael Pavone
2015-01-01Remove some of the hard coded assumptions about the memory map from the CPU ↵Michael Pavone
cores
2014-12-30MergeMichael Pavone
2014-12-29Fix handling of code writes for Z80 core. This seems to get things close to ↵Michael Pavone
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.
2014-12-26Fix a few bugs introduced in the Z80 core from the adjustments to fit with ↵Michael Pavone
the code gen refactor
2014-12-26Fix an off-by-one error in a branch destination in the generation of ↵Michael Pavone
handle_cycle_limit for the Z80
2014-12-26Update code->cur before calling z80_get_address_trans in ↵Michael Pavone
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
2014-12-26Add in missing generated Z80 helper functions. Fix a small bug in Z80_HALT. ↵Michael Pavone
Fix generation of save and load context for Z80
2014-12-22Z80 core is sort of working againMichael Pavone
2014-12-17Get rest of emulator compiling again with Z80 core enabledMichael Pavone
2014-12-17Get Z80 core back into compileable stateMichael Pavone
2014-12-16Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc ↵Michael Pavone
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.
2014-12-14WIP effort to update z80 core for code gen changesMichael Pavone
2014-12-03Temporarily comment out code to translate Z80 instructions in place as in ↵Michael Pavone
rare cases it can stomp the next instruction if a branch goes from a short from to a long one
2014-06-21Fix Z80 interruptsMichael Pavone
2014-06-20Added some preliminary support for interpreting Z80 code from non-RAM addressesMichael Pavone
2014-06-19Properly handle Z80 breakpoints on self-modifying code and setting Z80 ↵Michael Pavone
breakpoints before the Z80 program has been loaded
2014-06-19Slight cleanup of vint handling on the Z80Michael Pavone
2014-06-17blastem builds and almost works on OS X nowMike Pavone
2014-01-27Fix timing of certain ld and jp instructions in the Z80 coreMichael Pavone
2014-01-06The local clone on my laptop got messed up and some changes had not been ↵Michael Pavone
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.
2013-09-10Added copyright notice to source files and added GPL license text in COPYINGMike Pavone
2013-06-29Add support for loading GST format savestatesMike Pavone
2013-06-24Fix access to int_enable_cycle in EIMike Pavone
2013-06-15Fix DIMike Pavone
2013-06-14Fix adc and sbcMike Pavone
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