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| author | David Guillen Fandos | 2021-04-03 00:37:42 +0200 |
|---|---|---|
| committer | David Guillen Fandos | 2021-04-03 00:37:42 +0200 |
| commit | 5b5a4db6c2963ba72a3adcace6ec055ac65f2f3d (patch) | |
| tree | db7cd4db7d0c146a382e997f9f704a1983446e28 /x86 | |
| parent | 8c14ac96192f6d966ac0ad252003a8dd3c61667a (diff) | |
| download | picogpsp-5b5a4db6c2963ba72a3adcace6ec055ac65f2f3d.tar.gz picogpsp-5b5a4db6c2963ba72a3adcace6ec055ac65f2f3d.tar.bz2 picogpsp-5b5a4db6c2963ba72a3adcace6ec055ac65f2f3d.zip | |
Add instruction tracing, for testing purposes
Diffstat (limited to 'x86')
| -rw-r--r-- | x86/x86_emit.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/x86/x86_emit.h b/x86/x86_emit.h index 68930e1..ef79110 100644 --- a/x86/x86_emit.h +++ b/x86/x86_emit.h @@ -96,6 +96,7 @@ typedef enum x86_opcode_push_reg = 0x50, x86_opcode_push_rm = 0xFF, x86_opcode_push_imm = 0x0668, + x86_opcode_pop_reg = 0x58, x86_opcode_call_offset = 0xE8, x86_opcode_ret = 0xC3, x86_opcode_test_rm_imm = 0x00F7, @@ -266,6 +267,12 @@ typedef enum #define x86_emit_idiv_eax_reg(source) \ x86_emit_opcode_1b_ext_reg(idiv_eax_rm, source) \ +#define x86_emit_pop_reg(regn) \ + x86_emit_opcode_1b(pop_reg, regn) \ + +#define x86_emit_push_reg(regn) \ + x86_emit_opcode_1b(push_reg, regn) \ + #define x86_emit_push_mem(base, offset) \ x86_emit_opcode_1b_mem(push_rm, 0x06, base, offset) \ @@ -523,6 +530,28 @@ typedef enum generate_function_call(execute_##name##_##flags_op##_reg); \ generate_mov(ireg, rv) \ +#ifdef TRACE_INSTRUCTIONS + void function_cc trace_instruction(u32 pc) + { + printf("Executed %x\n", pc); + } + + #define emit_trace_thumb_instruction(pc) \ + x86_emit_push_reg(eax); \ + x86_emit_push_reg(ecx); \ + x86_emit_push_reg(edx); \ + x86_emit_mov_reg_imm(eax, pc); \ + generate_function_call(trace_instruction); \ + x86_emit_pop_reg(edx); \ + x86_emit_pop_reg(ecx); \ + x86_emit_pop_reg(eax); + #define emit_trace_arm_instruction(pc) \ + emit_trace_thumb_instruction(pc) +#else + #define emit_trace_thumb_instruction(pc) + #define emit_trace_arm_instruction(pc) +#endif + u32 function_cc execute_lsl_no_flags_reg(u32 value, u32 shift) { if(shift != 0) |