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Make yield a regular syscall taking an argument.

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Allows "wait for interrupt"/"wait for event" type operation where VM code blocks until the host has something for it.
This commit is contained in:
Toby Jaffey 2025-12-10 10:35:18 +00:00
parent d52baca7b2
commit e07eeab043
14 changed files with 88 additions and 24 deletions
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2
host-parallel/host-parallel.c
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@ -81,6 +81,8 @@ int main(int argc, char *argv[]) {
break;
case UVM32_EVT_SYSCALL: // vm has paused to handle UVM32_SYSCALL
switch(evt.data.syscall.code) {
case UVM32_SYSCALL_YIELD:
break;
case UVM32_SYSCALL_PRINTLN: {
const char *str = uvm32_getcstr(&vmst[scheduler_index], &evt, ARG0);
if (str[0] != 0) {