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retro-extend(1) better error message on invalid instructions

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FossilOrigin-Name: e79f2ee0c8ff46f0f6537fd820188e517c06a28bc0429576ee2bde0baddd13de
This commit is contained in:
crc 2022-06-07 10:41:27 +00:00
parent e89789839b
commit 3aa560c9dc
1 changed files with 10 additions and 2 deletions
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12
tools/retro-extend.c
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@ -261,7 +261,7 @@ void update_rx() {
/* The `execute` function runs a word in the Retro image. */ /* The `execute` function runs a word in the Retro image. */
void execute(CELL cell) { void execute(CELL cell) {
CELL opcode; CELL opcode, a, i;
rp = 1; rp = 1;
ip = cell; ip = cell;
while (ip < IMAGE_SIZE) { while (ip < IMAGE_SIZE) {
@ -272,7 +272,15 @@ void execute(CELL cell) {
if (ngaValidatePackedOpcodes(opcode) != 0) { if (ngaValidatePackedOpcodes(opcode) != 0) {
ngaProcessPackedOpcodes(opcode); ngaProcessPackedOpcodes(opcode);
} else { } else {
printf("Invalid instruction!\n"); printf("\nERROR: Invalid instruction!\n");
printf("At %lld, opcode %lld\n", (long long)ip, (long long)opcode);
printf("Instructions: ");
a = opcode;
for (i = 0; i < 4; i++) {
printf("%lldd ", (long long)a & 0xFF);
a = a >> 8;
}
printf("\n");
exit(1); exit(1);
} }
ip++; ip++;