franck.stauffer/chip8
1
0
Fork 0
Code Releases Activity

Fix a bug where v[X] was not handled in 0xFX55 and 0xFX65, use memcpy instead of looping, increment i like in the original implementation

Browse Source
This commit is contained in:
Franck STAUFFER 2020-08-03 16:36:19 +02:00
parent 522af3833a
commit ab05516329
Signed by: franck.stauffer
GPG Key ID: AAF5A94045CEC261
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/main.c
View File

@ -388,13 +388,13 @@ op_handler(void)
pc += 2; pc += 2;
return 1; return 1;
case 0xF055: case 0xF055:
for (register uint_fast8_t t = 0; t < X; ++t) memcpy(memory + i, v, ((X) + 1) * sizeof(byte));
memory[i + t] = v[t]; i += (X) + 1;
pc += 2; pc += 2;
return 1; return 1;
case 0xF065: case 0xF065:
for (register uint_fast8_t t = 0; t < X; ++t) memcpy(v, memory + i, ((X) + 1) * sizeof(byte));
v[t] = memory[i + t]; i += (X) + 1;
pc += 2; pc += 2;
return 1; return 1;
default: default: