diff options
| -rw-r--r-- | gen.h | 2 | ||||
| -rw-r--r-- | gen_x86.c | 30 | ||||
| -rw-r--r-- | m68k_core_x86.c | 27 | ||||
| -rw-r--r-- | z80_to_x86.c | 31 |
4 files changed, 38 insertions, 52 deletions
@@ -27,5 +27,7 @@ void jmp_r(code_info *code, uint8_t dst); void call_args(code_info *code, code_ptr fun, uint32_t num_args, ...); //like the above, but follows other aspects of the ABI like stack alignment void call_args_abi(code_info *code, code_ptr fun, uint32_t num_args, ...); +void save_callee_save_regs(code_info *code); +void restore_callee_save_regs(code_info *code); #endif //GEN_H_ @@ -2039,3 +2039,33 @@ void call_args_abi(code_info *code, code_ptr fun, uint32_t num_args, ...) *no_adjust_rsp = code->cur - (no_adjust_rsp+1); #endif } + +void save_callee_save_regs(code_info *code) +{ + push_r(code, RBX); + push_r(code, RBP); +#ifdef X86_64 + push_r(code, R12); + push_r(code, R13); + push_r(code, R14); + push_r(code, R15); +#else + push_r(code, RDI); + push_r(code, RSI); +#endif +} + +void restore_callee_save_regs(code_info *code) +{ +#ifdef X86_64 + pop_r(code, R15); + pop_r(code, R14); + pop_r(code, R13); + pop_r(code, R12); +#else + pop_r(code, RSI); + pop_r(code, RDI); +#endif + pop_r(code, RBP); + pop_r(code, RBX); +} diff --git a/m68k_core_x86.c b/m68k_core_x86.c index aed617f..44f8c3e 100644 --- a/m68k_core_x86.c +++ b/m68k_core_x86.c @@ -2281,42 +2281,19 @@ void init_m68k_opts(m68k_options * opts, memmap_chunk * memmap, uint32_t num_chu retn(code); opts->start_context = (start_fun)code->cur; + save_callee_save_regs(code); #ifdef X86_64 if (opts->gen.scratch2 != RDI) { mov_rr(code, RDI, opts->gen.scratch2, SZ_PTR); } - //save callee save registers - push_r(code, RBP); - push_r(code, R12); - push_r(code, R13); - push_r(code, R14); - push_r(code, R15); #else - //save callee save registers - push_r(code, RBP); - push_r(code, RBX); - push_r(code, RSI); - push_r(code, RDI); - mov_rdispr(code, RSP, 20, opts->gen.scratch2, SZ_D); mov_rdispr(code, RSP, 24, opts->gen.context_reg, SZ_D); #endif call(code, opts->gen.load_context); call_r(code, opts->gen.scratch2); call(code, opts->gen.save_context); -#ifdef X86_64 - //restore callee save registers - pop_r(code, R15); - pop_r(code, R14); - pop_r(code, R13); - pop_r(code, R12); - pop_r(code, RBP); -#else - pop_r(code, RDI); - pop_r(code, RSI); - pop_r(code, RBX); - pop_r(code, RBP); -#endif + restore_callee_save_regs(code); retn(code); opts->native_addr = code->cur; diff --git a/z80_to_x86.c b/z80_to_x86.c index 83237ca..aac1ceb 100644 --- a/z80_to_x86.c +++ b/z80_to_x86.c @@ -2052,13 +2052,7 @@ void init_z80_opts(z80_options * options, memmap_chunk const * chunks, uint32_t 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 @@ void init_z80_opts(z80_options * options, memmap_chunk const * chunks, uint32_t 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 @@ void init_z80_opts(z80_options * options, memmap_chunk const * chunks, uint32_t 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 @@ void init_z80_opts(z80_options * options, memmap_chunk const * chunks, uint32_t 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); |