Mercurial > repos > blastem
diff backend_x86.c @ 2036:45c4b74e7676
Fix bug in handling of MMAP_CODE regions smaller than 16KB
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Sun, 07 Mar 2021 22:43:51 -0800 |
| parents | 2a5649a767e7 |
| children | 8ee7ecbf3f21 |
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--- a/backend_x86.c Sun Mar 07 10:41:35 2021 -0800 +++ b/backend_x86.c Sun Mar 07 22:43:51 2021 -0800 @@ -299,10 +299,16 @@ retn(code); } if (memmap[chunk].flags & MMAP_CODE) { + uint32_t added_offset; if (memmap[chunk].mask == opts->address_mask) { - ram_flags_off += (memmap[chunk].end - memmap[chunk].start) / (1 << opts->ram_flags_shift) / 8; ; + added_offset = (memmap[chunk].end - memmap[chunk].start) / (1 << opts->ram_flags_shift) / 8; } else { - ram_flags_off += (memmap[chunk].mask + 1) / (1 << opts->ram_flags_shift) / 8;; + added_offset = (memmap[chunk].mask + 1) / (1 << opts->ram_flags_shift) / 8; + } + if (added_offset) { + ram_flags_off += added_offset; + } else { + ram_flags_off += 1; } } if (lb_jcc) {