void
CPU::reset(C64 *c64)
{
debug(2, " Resetting CPU...\n");
// Registers and flags
A = 0;
X = 0;
Y = 0;
PC = 0;
PC_at_cycle_0 = 0;
SP = 0;
N = 0;
V = 0;
B = 1;
D = 0;
I = 0;
Z = 0;
C = 0;
// Internal state
opcode = 0;
addr_lo = 0;
addr_hi = 0;
ptr = 0;
pc_lo = 0;
pc_hi = 0;
overflow = false;
data = 0;
// Variable 'port' gets its initial value via C64Memory::reset
// Variable 'portDirection' gets its initial value via C64Memory::reset
external_port_bits = 0x1F;
rdyLine = true;
irqLine = 0;
nmiLine = 0;
nmiEdge = false;
interruptsPending = false;
nextPossibleIrqCycle = 0UL;
nextPossibleNmiCycle = 0UL;
errorState = OK;
next = &CPU::fetch;
memset(callStack, 0, sizeof(callStack));
callStackPointer = 0;
oldI = 0;
// Debug options
setTraceMode(false);
}
void
VirtualComponent::reset()
{
// Reset all sub components
if (subComponents != NULL)
for (unsigned i = 0; subComponents[i] != NULL; i++)
subComponents[i]->reset();
// Clear snapshot items marked with 'CLEAR_ON_RESET'
if (snapshotItems != NULL)
for (unsigned i = 0; snapshotItems[i].data != NULL; i++)
if (snapshotItems[i].flags & CLEAR_ON_RESET)
memset(snapshotItems[i].data, 0, snapshotItems[i].size);
setTraceMode(false);
debug(2, "Resetting...\n");
}