diff options
| author | Mike Pavone <pavone@retrodev.com> | 2013-07-26 19:55:04 -0700 |
|---|---|---|
| committer | Mike Pavone <pavone@retrodev.com> | 2013-07-26 19:55:04 -0700 |
| commit | a75eb24bfbbf0dd3492c8414cfaafa0569a1539a (patch) | |
| tree | 394d6b3f79abcc178c6881bbe9b076dd62d4ce7e /zruntime.S | |
| parent | f09e868c52d367731accb654a3de3c95c5694519 (diff) | |
Added support for saving savestates. Added gst savestate format test harness
Diffstat (limited to 'zruntime.S')
| -rw-r--r-- | zruntime.S | 16 |
1 files changed, 9 insertions, 7 deletions
@@ -19,12 +19,13 @@ do_limit: cmp 112(%rsi), %ebp jb no_sync sync_io: + movw $0, 164(%rsi) call z80_save_context_scratch pop %rax /*return address in read/write func*/ pop 104(%rsi) /*return address in native code*/ sub $5, %rax /* adjust return addres to point to the call instruction that got us here */ mov %rax, (%rsi) - + pop %r15 /* restore callee saved regsiters */ pop %r14 pop %r13 @@ -32,7 +33,7 @@ sync_io: pop %rbp pop %rbx ret /* return to caller of z80_run */ - + .global z80_handle_cycle_limit_int z80_handle_cycle_limit_int: cmp 116(%rsi), %ebp @@ -63,6 +64,7 @@ z80_handle_cycle_limit_int: zskip_int: cmp 112(%rsi), %ebp jb zskip_sync +mov %r13w, 164(%rsi) .global z80_do_sync z80_do_sync: call z80_save_context @@ -244,7 +246,7 @@ z80_io_write: call z_inccycles_io /* genesis Z80 has no IO port hardware and writes have no effect */ ret - + .global z80_retrans_stub z80_retrans_stub: pop %r14 @@ -264,7 +266,7 @@ z80_retrans_stub: z80_native_addr: call z80_save_context push %rsi - mov %rsi, %rdi + mov %rsi, %rdi movzx %r13w, %esi call z80_get_native_address_trans mov %rax, %r13 @@ -275,7 +277,7 @@ z80_native_addr: z80_save_context_scratch: mov %r13w, 98(%rsi) /* scratch1 */ mov %r14w, 100(%rsi) /* scratch2 */ - + .global z80_save_context z80_save_context: mov %r9w, 8(%rsi) /* SP */ @@ -295,7 +297,7 @@ z80_save_context: z80_load_context_scratch: mov 98(%rsi), %r13w /* scratch1 */ mov 100(%rsi), %r14w /* scratch2 */ - + .global z80_load_context z80_load_context: mov 8(%rsi), %r9w /* SP */ @@ -328,4 +330,4 @@ z80_run: movq $0, 104(%rsi) no_extra: jmp *(%rsi) - + |