claunia/86Box
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix a bug in dma_advance().

Browse Source
This commit is contained in:
OBattler
2024-06-11 02:35:38 +02:00
parent 4a78dedae5
commit 5b8bf02399
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/dma.c
View File

@@ -1411,7 +1411,7 @@ dma_retreat(dma_t *dma_c)
dma_c->page = dma_c->page_l = (dma_c->ac >> 16) & 0xff;
dma_c->page_h = (dma_c->ac >> 24) & 0xff;
} else if (as == 2)
dma_c->ac = ((dma_c->ac & 0xfffe0000) & dma_mask) | ((dma_c->ac - as) & 0xffff);
dma_c->ac = ((dma_c->ac & 0xfffe0000) & dma_mask) | ((dma_c->ac - as) & 0x1ffff);
else
dma_c->ac = ((dma_c->ac & 0xffff0000) & dma_mask) | ((dma_c->ac - as) & 0xffff);
}
@@ -1427,7 +1427,7 @@ dma_advance(dma_t *dma_c)
dma_c->page = dma_c->page_l = (dma_c->ac >> 16) & 0xff;
dma_c->page_h = (dma_c->ac >> 24) & 0xff;
} else if (as == 2)
dma_c->ac = ((dma_c->ac & 0xfffe0000) & dma_mask) | ((dma_c->ac + as) & 0xffff);
dma_c->ac = ((dma_c->ac & 0xfffe0000) & dma_mask) | ((dma_c->ac + as) & 0x1ffff);
else
dma_c->ac = ((dma_c->ac & 0xffff0000) & dma_mask) | ((dma_c->ac + as) & 0xffff);
}