Mercurial > repos > blastem
diff z80_to_x86.c @ 665:d0943769353b
Added functions to gen_x86 for saving and restoring callee save registers to better abstract over ABI differences between x86 and x86-64
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Fri, 02 Jan 2015 13:14:09 -0800 |
| parents | bca748422bf0 |
| children | b68039895627 |
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--- a/z80_to_x86.c Fri Jan 02 12:04:58 2015 -0800 +++ b/z80_to_x86.c Fri Jan 02 13:14:09 2015 -0800 @@ -2052,13 +2052,7 @@ sub_ir(code, 5, RAX, SZ_PTR); //adjust return address to point to the call that got us here mov_rrdisp(code, RBX, options->gen.context_reg, offsetof(z80_context, extra_pc), SZ_PTR); mov_rrind(code, RAX, options->gen.context_reg, SZ_PTR); - //restore callee saved registers - pop_r(code, R15); - pop_r(code, R14); - pop_r(code, R13); - pop_r(code, R12); - pop_r(code, RBP); - pop_r(code, RBX); + restore_callee_save_regs(code); *no_sync = code->cur - (no_sync + 1); //return to caller of z80_run retn(code); @@ -2104,13 +2098,7 @@ mov_ir(code, 0x38, options->gen.scratch1, SZ_W); call(code, options->native_addr); mov_rrind(code, options->gen.scratch1, options->gen.context_reg, SZ_PTR); - //restore callee saved registers - pop_r(code, R15); - pop_r(code, R14); - pop_r(code, R13); - pop_r(code, R12); - pop_r(code, RBP); - pop_r(code, RBX); + restore_callee_save_regs(code); //return to caller of z80_run to sync retn(code); *skip_int = code->cur - (skip_int+1); @@ -2121,12 +2109,7 @@ call(code, options->gen.save_context); pop_rind(code, options->gen.context_reg); //restore callee saved registers - pop_r(code, R15); - pop_r(code, R14); - pop_r(code, R13); - pop_r(code, R12); - pop_r(code, RBP); - pop_r(code, RBX); + restore_callee_save_regs(code); //return to caller of z80_run *skip_sync = code->cur - (skip_sync+1); retn(code); @@ -2207,13 +2190,7 @@ jmp_r(code, options->gen.scratch1); options->run = (z80_run_fun)code->cur; - //save callee save registers - push_r(code, RBX); - push_r(code, RBP); - push_r(code, R12); - push_r(code, R13); - push_r(code, R14); - push_r(code, R15); + save_callee_save_regs(code); mov_rr(code, RDI, options->gen.context_reg, SZ_PTR); call(code, options->load_context_scratch); cmp_irdisp(code, 0, options->gen.context_reg, offsetof(z80_context, extra_pc), SZ_PTR);