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Print rm values

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zoriya
2023-07-08 15:48:41 +09:00
parent 215c249b0e
commit 521d9e5113
2 changed files with 24 additions and 2 deletions
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src/dasm.c
+2 -1
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@@ -129,7 +129,8 @@ void print_instruction(unsigned addr, instruction_t inst, unsigned inst_size, u_
}
if (last_param)
printf("%s", last_param + 2);
printf("\n");
if (space)
printf("\n");
}
unsigned get_inst_size(instruction_t inst, u_int8_t *binary, unsigned bin_size)
src/interpretor.c
+22 -1
View File
@@ -1,3 +1,4 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
@@ -163,6 +164,25 @@ void print_state(state_t *state)
);
}
void print_rm_value(state_t *state, instruction_t *inst)
{
unsigned imm = 0;
for (int i = 0; inst->mode[i] != END; i++) {
if (inst->mode[i] != R_M8 && inst->mode[i] != R_M16)
continue;
unsigned mod = state->binary[state->pc + 1] >> 6;
if (mod == 0b11)
continue;
void *ptr = get_rm_operand(state, &imm, inst->mode[i] == R_M16);
uint16_t val = inst->mode[i] == R_M16 ? *(uint16_t *)ptr : *(uint8_t *)ptr;
printf(" ;[%04lx]%04x", (uint8_t *)ptr - state->memory, val);
}
printf("\n");
}
int interpret(u_int8_t *binary, unsigned long size)
{
state_t *state = calloc(sizeof(*state), 1);
@@ -194,9 +214,10 @@ int interpret(u_int8_t *binary, unsigned long size)
if (state->pc + inst_size > size) {
return 0;
}
state->parse_data.imm_idx = 1 + (inst.extended != -1 || has_reg(&inst));
print_state(state);
print_instruction(state->pc, inst, inst_size, state->binary + state->pc, false);
state->parse_data.imm_idx = 1 + (inst.extended != -1 || has_reg(&inst));
print_rm_value(state, &inst);
if (inst.exec)
inst.exec(&inst, state);
else