Mercurial > repos > blastem
diff m68k_to_x86.c @ 561:666adeba5a61
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
author | Mike Pavone <pavone@retrodev.com> |
---|---|
date | Mon, 23 Jun 2014 11:46:56 -0400 |
parents | f9431cb3a39c |
children |
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--- a/m68k_to_x86.c Mon Jun 23 11:05:55 2014 -0400 +++ b/m68k_to_x86.c Mon Jun 23 11:46:56 2014 -0400 @@ -4492,11 +4492,17 @@ } } else { if (is_write) { + if (memmap[chunk].flags & MMAP_CODE) { + dst = push_r(dst, SCRATCH2); + } dst = push_r(dst, SCRATCH1); dst = mov_ir(dst, (intptr_t)memmap[chunk].buffer, SCRATCH1, SZ_PTR); dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_PTR); dst = pop_r(dst, SCRATCH1); dst = mov_rrind(dst, SCRATCH1, SCRATCH2, tmp_size); + if (memmap[chunk].flags & MMAP_CODE) { + dst = pop_r(dst, SCRATCH2); + } } else { dst = mov_ir(dst, (intptr_t)memmap[chunk].buffer, SCRATCH2, SZ_PTR); dst = mov_rindexr(dst, SCRATCH2, SCRATCH1, 0, SCRATCH1, tmp_size);