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force CPU into hypervisor before updating HYPPO image #222 #223

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force CPU into hypervisor before updating HYPPO image #222 #223

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16 changes: 15 additions & 1 deletion src/tools/m65.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2280,7 +2280,21 @@ int main(int argc, char **argv)
if (hyppo) {
log_info("replacing hyppo...");
real_stop_cpu();
load_file(hyppo, 0xfff8000, patchKS);

// Reset CPU, and then stop it quickly so that we know it's still in the hypervisor
monitor_sync();
slow_write(fd, "\r!\r", 3);
usleep(100000);
slow_write(fd, "\rt1\r", 4);
monitor_sync();
sleep(1);

load_file(hyppo, 0xfff8000, patchKS);

// Reset CPU after loading new HYPPO
slow_write(fd, "\r!\r", 3);
monitor_sync();
sleep(2);
}
if (flashmenufile) {
log_info("replacing flashmenu");
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