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sim65 common define for paravirt hooks base location

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allows the loaded binary to take up as much space as possible
restored some documentation of the hooks but without reference to specific location
This commit is contained in:
bbbradsmith
2019-05-30 15:34:05 -04:00
committed by Oliver Schmidt
parent 6efb71bea7
commit 5269552346
4 changed files with 26 additions and 20 deletions
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6
src/sim65/paravirt.c
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@@ -318,13 +318,13 @@ void ParaVirtHooks (CPURegs* Regs)
/* Potentially execute paravirtualization hooks */
{
/* Check for paravirtualization address range */
if (Regs->PC < 0xFFF4 ||
Regs->PC >= 0xFFF4 + sizeof (Hooks) / sizeof (Hooks[0])) {
if (Regs->PC < PARAVIRT_BASE ||
Regs->PC >= PARAVIRT_BASE + sizeof (Hooks) / sizeof (Hooks[0])) {
return;
}
/* Call paravirtualization hook */
Hooks[Regs->PC - 0xFFF4] (Regs);
Hooks[Regs->PC - PARAVIRT_BASE] (Regs);
/* Simulate RTS */
Regs->PC = Pop(Regs) + (Pop(Regs) << 8) + 1;