Mercurial > repos > blastem
changeset 174:a1c3ecb4823f
Implement areg displacement mode for jsr
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Sun, 06 Jan 2013 18:31:17 -0800 |
| parents | 47b2796fb277 |
| children | 7504200cac86 |
| files | m68k_to_x86.c |
| diffstat | 1 files changed, 24 insertions(+), 0 deletions(-) [+] |
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--- a/m68k_to_x86.c Sun Jan 06 15:20:23 2013 -0800 +++ b/m68k_to_x86.c Sun Jan 06 18:31:17 2013 -0800 @@ -1945,6 +1945,30 @@ dst = jmp_r(dst, SCRATCH1); } break; + case MODE_AREG_DISPLACE: + dst = cycles(dst, BUS*2); + dst = mov_ir(dst, inst->address + 2, SCRATCH1, SZ_D); + if (opts->flags & OPT_NATIVE_CALL_STACK) { + dst = push_r(dst, SCRATCH1); + } + dst = sub_ir(dst, 4, opts->aregs[7], SZ_D); + dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D); + dst = call(dst, (char *)m68k_write_long_highfirst); + if (opts->aregs[inst->src.params.regs.pri] >= 0) { + dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D); + } else { + dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D); + } + dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D); + dst = call(dst, (uint8_t *)m68k_native_addr); + if (opts->flags & OPT_NATIVE_CALL_STACK) { + dst = call_r(dst, SCRATCH1); + //would add_ir(dst, 8, RSP, SZ_Q) be faster here? + dst = pop_r(dst, SCRATCH1); + } else { + dst = jmp_r(dst, SCRATCH1); + } + break; case MODE_AREG_INDEX_DISP8: dst = cycles(dst, BUS*3);//TODO: CHeck that this is correct dst = mov_ir(dst, inst->address + 4, SCRATCH1, SZ_D);