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Resume after hang (with warning)

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This commit is contained in:
Toby Jaffey 2025-12-08 21:19:59 +00:00
parent 41a94d0629
commit de689bdeaf
1 changed files with 13 additions and 4 deletions
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17
host/host.c
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@ -133,16 +133,21 @@ void hexdump(const uint8_t *p, int len) {
int main(int argc, char *argv[]) {
uvm32_state_t vmst;
uint32_t max_instrs_per_run = 500000;
clock_t start_time = clock() / (CLOCKS_PER_SEC / 1000);
argc--;
argv++;
if (argc < 1) {
printf("<romfile>\n");
printf("<romfile> [max_instrs_per_run]\n");
return 1;
}
if (argc > 1) {
max_instrs_per_run = strtoll(argv[1], NULL, 10);
}
int romlen = 0;
uint8_t *rom = read_file(argv[0], &romlen);
if (NULL == rom) {
@ -165,7 +170,7 @@ int main(int argc, char *argv[]) {
enableRawMode();
while(isrunning) {
total_instrs += uvm32_run(&vmst, &evt, 1000000); // num instructions before vm considered hung
total_instrs += uvm32_run(&vmst, &evt, max_instrs_per_run); // num instructions before vm considered hung
num_syscalls++;
switch(evt.typ) {
@ -179,7 +184,11 @@ int main(int argc, char *argv[]) {
break;
case UVM32_EVT_ERR:
printf("UVM32_EVT_ERR '%s' (%d)\n", evt.data.err.errstr, (int)evt.data.err.errcode);
isrunning = false;
if (evt.data.err.errcode == UVM32_ERR_HUNG) {
printf("VM may have hung, increase max_instrs_per_run\n");
} else {
isrunning = false;
}
break;
case UVM32_EVT_SYSCALL:
switch((f_code_t)evt.data.syscall.code) {
@ -190,7 +199,7 @@ int main(int argc, char *argv[]) {
printf("%.*s\n", evt.data.syscall.val.buf.len, evt.data.syscall.val.buf.ptr);
break;
case F_PRINTDEC:
printf("%d\n", evt.data.syscall.val.u32);
printf("%d", evt.data.syscall.val.u32);
break;
case F_PUTC:
printf("%c", evt.data.syscall.val.u32);