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fix push/pop to recurse properly 

SVN revision: 18687
This commit is contained in:
Carsten Haitzler 2005-11-29 04:13:02 +00:00
parent 7cf6b74ee7
commit d73081e84b
2 changed files with 15 additions and 2 deletions
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16
legacy/embryo/src/lib/embryo_amx.c
View File

@ -478,10 +478,20 @@ embryo_program_vm_push(Embryo_Program *ep)
{
Embryo_Header *hdr;
if ((!ep) || (ep->base)) return;
if (!ep) return;
ep->pushes++;
if (ep->pushes > 1)
{
embryo_program_vm_reset(ep);
return;
}
hdr = (Embryo_Header *)ep->code;
ep->base = malloc(hdr->stp);
if (!ep->base) return;
if (!ep->base)
{
ep->pushes = 0;
return;
}
embryo_program_vm_reset(ep);
}
@ -499,6 +509,8 @@ void
embryo_program_vm_pop(Embryo_Program *ep)
{
if ((!ep) || (!ep->base)) return;
ep->pushes--;
if (ep->pushes >= 1) return;
free(ep->base);
ep->base = NULL;
}

1
legacy/embryo/src/lib/embryo_private.h
View File

@ -218,6 +218,7 @@ struct _Embryo_Param
struct _Embryo_Program
{
unsigned char *base; /* points to the Embryo_Program header ("ephdr") plus the code, optionally also the data */
int pushes; /* number of pushes - pops */
/* for external functions a few registers must be accessible from the outside */
Embryo_Cell cip; /* instruction pointer: relative to base + ephdr->cod */
Embryo_Cell frm; /* stack frame base: relative to base + ephdr->dat */