6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2025-03-20 03:29:47 +00:00
Code Issues Projects Releases Wiki Activity

Corrects 6526 interrupt control write.

Browse Source 
This seems to imply that the 6526 should be interrupting too.
This commit is contained in:
Thomas Harte 2021-07-28 19:26:02 -04:00
parent 69ae9d72c8
commit 37a55c3a77
1 changed files with 2 additions and 1 deletions

3
Components/6526/Implementation/6526Implementation.hpp

@ -126,7 +126,7 @@ void MOS6526<BusHandlerT, personality>::write(int address, uint8_t value) {
// Interrupt control.
case 13: {
if(interrupt_control_ & 0x80) {
if(value & 0x80) {
interrupt_control_ |= value & 0x7f;
} else {
interrupt_control_ &= ~(value & 0x7f);
@ -233,6 +233,7 @@ template <typename BusHandlerT, Personality personality>
void MOS6526<BusHandlerT, personality>::run_for(const HalfCycles half_cycles) {
half_divider_ += half_cycles;
const int sub = half_divider_.divide_cycles().template as<int>();
if(!sub) return;
// Is counter A running and linked to the clock input?
int counter_a_underflows = 0;