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At least attempts to chain correctly.

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Thomas Harte
2021-08-03 17:03:58 -04:00
parent f0ef45f0ca
commit 6bbbf43341
1 changed files with 8 additions and 2 deletions
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10
Components/6526/Implementation/6526Storage.hpp
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@@ -69,9 +69,15 @@ struct MOS6526Storage {
// Determine whether an input clock is applicable. // Determine whether an input clock is applicable.
if constexpr(is_counter_2) { if constexpr(is_counter_2) {
switch(control&0x60) { switch(control&0x60) {
case 0x00: case 0x00: // Count Phi2 pulses.
pending |= TestInputInOne; pending |= TestInputNow;
break; break;
case 0x40: // Count timer A unerflows.
pending |= chained_input ? TestInputNow : 0;
break;
case 0x20: // Count negative CNTs.
case 0x60: // Count timer A transitions when CNT is low.
default: default:
// TODO: all other forms of input. // TODO: all other forms of input.
assert(false); assert(false);