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| author | Damien George <damien.p.george@gmail.com> | 2018-08-16 13:45:24 +1000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2018-08-16 13:45:24 +1000 |
| commit | 2964b41c282917bfb3f6e3a1d6e3fd7a078abed6 (patch) | |
| tree | 82e8039004d9a19790878c9cff77413d87cf2f81 /py/asmx86.h | |
| parent | f7d6108d1ad83f26598e73d3b163f3de411c902b (diff) | |
py/asm*: Support assembling code to jump to a register, and get PC+off.
Useful for position independent code, and implementing state machines.
Diffstat (limited to 'py/asmx86.h')
| -rw-r--r-- | py/asmx86.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/py/asmx86.h b/py/asmx86.h index 72b122ad0..5b8a69b49 100644 --- a/py/asmx86.h +++ b/py/asmx86.h @@ -103,6 +103,7 @@ void asm_x86_cmp_r32_with_r32(asm_x86_t* as, int src_r32_a, int src_r32_b); void asm_x86_test_r8_with_r8(asm_x86_t* as, int src_r32_a, int src_r32_b); void asm_x86_test_r32_with_r32(asm_x86_t* as, int src_r32_a, int src_r32_b); void asm_x86_setcc_r8(asm_x86_t* as, mp_uint_t jcc_type, int dest_r8); +void asm_x86_jmp_reg(asm_x86_t *as, int src_r86); void asm_x86_jmp_label(asm_x86_t* as, mp_uint_t label); void asm_x86_jcc_label(asm_x86_t* as, mp_uint_t jcc_type, mp_uint_t label); void asm_x86_entry(asm_x86_t* as, int num_locals); @@ -111,6 +112,7 @@ void asm_x86_mov_arg_to_r32(asm_x86_t *as, int src_arg_num, int dest_r32); void asm_x86_mov_local_to_r32(asm_x86_t* as, int src_local_num, int dest_r32); void asm_x86_mov_r32_to_local(asm_x86_t* as, int src_r32, int dest_local_num); void asm_x86_mov_local_addr_to_r32(asm_x86_t* as, int local_num, int dest_r32); +void asm_x86_mov_reg_pcrel(asm_x86_t *as, int dest_r64, mp_uint_t label); void asm_x86_call_ind(asm_x86_t* as, void* ptr, mp_uint_t n_args, int temp_r32); #if GENERIC_ASM_API @@ -167,6 +169,7 @@ void asm_x86_call_ind(asm_x86_t* as, void* ptr, mp_uint_t n_args, int temp_r32); asm_x86_cmp_r32_with_r32(as, reg1, reg2); \ asm_x86_jcc_label(as, ASM_X86_CC_JE, label); \ } while (0) +#define ASM_JUMP_REG(as, reg) asm_x86_jmp_reg((as), (reg)) #define ASM_CALL_IND(as, ptr, idx) asm_x86_call_ind(as, ptr, mp_f_n_args[idx], ASM_X86_REG_EAX) #define ASM_MOV_LOCAL_REG(as, local_num, reg_src) asm_x86_mov_r32_to_local((as), (reg_src), (local_num)) @@ -175,6 +178,7 @@ void asm_x86_call_ind(asm_x86_t* as, void* ptr, mp_uint_t n_args, int temp_r32); #define ASM_MOV_REG_LOCAL(as, reg_dest, local_num) asm_x86_mov_local_to_r32((as), (local_num), (reg_dest)) #define ASM_MOV_REG_REG(as, reg_dest, reg_src) asm_x86_mov_r32_r32((as), (reg_dest), (reg_src)) #define ASM_MOV_REG_LOCAL_ADDR(as, reg_dest, local_num) asm_x86_mov_local_addr_to_r32((as), (local_num), (reg_dest)) +#define ASM_MOV_REG_PCREL(as, reg_dest, label) asm_x86_mov_reg_pcrel((as), (reg_dest), (label)) #define ASM_LSL_REG(as, reg) asm_x86_shl_r32_cl((as), (reg)) #define ASM_ASR_REG(as, reg) asm_x86_sar_r32_cl((as), (reg)) |