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[lonetix/bgp] Fix Bgp_VmDoBreak() logic for nested BLKs

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This commit is contained in:
Lorenzo Cogotti 2021-10-18 16:35:14 +02:00
parent ef77abb25a
commit 207924beac
1 changed files with 14 additions and 5 deletions
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19
lonetix/include/df/bgp/vmintrin.h
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@ -174,19 +174,28 @@ FORCE_INLINE void Bgp_VmDoLoadn(Bgpvm *vm)
}
/// Break out of current `BLK`.
FORCE_INLINE void Bgp_VmDoBreak(Bgpvm *vm)
INLINE void Bgp_VmDoBreak(Bgpvm *vm)
{
Bgpvmopc opc;
unsigned n = 1;
do
opc = BGP_VMOPC(vm->prog[vm->pc++]);
while (opc != BGP_VMOP_ENDBLK && opc != BGP_VMOP_END);
do {
opc = BGP_VMOPC(vm->prog[vm->pc]);
if (opc == BGP_VMOP_END) // shouldn't happen with decent bytecode...
break;
if (opc == BGP_VMOP_BLK)
n++;
if (opc == BGP_VMOP_ENDBLK)
n--;
vm->pc++;
} while (n > 0);
if (opc == BGP_VMOP_ENDBLK)
vm->nblk--;
}
/// Execute `CALL` of function `vm->funcs[idx]`.
FORCE_INLINE void Bgp_VmDoCall(Bgpvm *vm, Uint8 idx)
{