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main: add very simple register display

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This commit is contained in:
Zack Buhman 2024-04-23 20:49:53 +08:00
parent f5d2f9e7fc
commit 811c07f4ae
1 changed files with 79 additions and 10 deletions
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89
c/main.c
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@ -6,8 +6,71 @@
#include "state.h"
#include "exception.h"
#include "execute.h"
#include "state_helpers.h"
#include "operations.h"
#include "decode_print.h"
void render(struct architectural_state * state, struct memory_map * map)
{
char const * instruction_buf;
char operand_buf[128];
printf("\e[1;1H\e[2J");
for (int i = 0; i < 8; i++) {
int ra = i;
int rb = i+8;
int rc = i+16;
printf(" r%-2d 0x%08x r%-2d 0x%08x xr%-2d 0x%08x\n",
ra, state->general_register[ra],
rb, state->general_register[rb],
(rc-16), state->general_register[rc]
);
}
printf("\n");
for (int i = 0; i < 8; i++) {
int ra = i;
int rb = i+8;
int rc = i+16;
int rd = i+24;
printf(" fr%-2d 0x%08x fr%-2d 0x%08x xf%-2d 0x%08x xf%-2d 0x%08x\n",
ra, state->floating_point_register.fr[ra],
rb, state->floating_point_register.fr[rb],
(rc-16), state->floating_point_register.fr[rc],
(rd-16), state->floating_point_register.fr[rd]
);
}
printf("\n");
printf(" pc 0x%08x pr 0x%08x\n", state->pc[0], state->pr[0]);
printf(" mach 0x%08x macl 0x%08x\n", state->mach, state->macl );
printf(" fpscr 0x%08x fpul 0x%08x\n", state->fpscr.value, state->fpul);
printf(" sr 0x%08x\n", state->sr.value);
printf("md:%d ", state->sr.bits.md);
printf("rb:%d ", state->sr.bits.rb);
printf("bl:%d ", state->sr.bits.bl);
printf("fd:%d ", state->sr.bits.fd);
printf("m:%d ", state->sr.bits.m);
printf("q:%d ", state->sr.bits.q);
printf("imask:%d ", state->sr.bits.imask);
printf("s:%d ", state->sr.bits.s);
printf("t:%d ", state->sr.bits.t);
printf("\n");
uint32_t instruction_code;
printf("\n\n");
for (int i = -1; i < 8; i++) {
uint32_t address = zero_extend32(sign_extend32(state->pc[0]) + i * 2);
instruction_code = read_memory16(map, address);
decode_and_print_instruction(state, map, instruction_code, &instruction_buf, operand_buf, 128);
const char p = i == 0 ? '>' : ' ';
printf(" %c %08x %-7s %-20s\n", p, address, instruction_buf, operand_buf);
}
}
int main(int argc, char *argv[])
{
assert(argc > 1);
@ -40,21 +103,27 @@ int main(int argc, char *argv[])
struct architectural_state state = { 0 };
POWERON(&state);
state.pc[2] = state.pc[0] + 2;
state.pr[2] = state.pr[0];
render(&state, &map);
char const * instruction_buf;
char operand_buf[128];
bool free = 1;
int ix = 0;
while (1) {
uint32_t instruction_code = fetch(&state, &map);
decode_and_print_instruction(&state, &map, instruction_code, &instruction_buf, operand_buf, 128);
printf("pc %08x %-7s %-20s\n", state.pc[0], instruction_buf, operand_buf);
if (physical_address(state.pc[0]) == 0x38)
if (physical_address(state.pc[0]) == 0x96)
break;
if (!free)
getchar();
step(&state, &map);
if (!free || (ix % 1000) == 0)
render(&state, &map);
ix++;
}
printf("part1 %d\n", state.gbr);
printf("part2 %d %d\n", state.mach, state.macl);
render(&state, &map);
printf("part1 %x\n", state.floating_point_register.fr[9]);
}