6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2025-08-15 14:27:29 +00:00
Code Issues Projects Releases Wiki Activity

Corrects raster race condition with CPU.

Browse Source
This commit is contained in:
Thomas Harte
2019-11-07 23:27:05 -05:00
parent 68f9084d9e
commit 5d5dc79f2c
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Machines/AtariST/AtariST.cpp
View File

@@ -339,9 +339,11 @@ class ConcreteMachine:
cycle.value->halves.low = uint8_t(memory[address] >> cycle.byte_shift()); cycle.value->halves.low = uint8_t(memory[address] >> cycle.byte_shift());
break; break;
case Microcycle::SelectWord: case Microcycle::SelectWord:
video_.flush(); // TODO: (and below), a range check to determine whether this is really necesary.
memory[address] = cycle.value->full; memory[address] = cycle.value->full;
break; break;
case Microcycle::SelectByte: case Microcycle::SelectByte:
video_.flush();
memory[address] = uint16_t( memory[address] = uint16_t(
(cycle.value->halves.low << cycle.byte_shift()) | (cycle.value->halves.low << cycle.byte_shift()) |
(memory[address] & cycle.untouched_byte_mask()) (memory[address] & cycle.untouched_byte_mask())