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* swapped di and ax in the beginning of GetPixel16

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git-svn-id: trunk@40989 -
This commit is contained in:
nickysn 2019-01-22 14:30:18 +00:00
parent f1ad989ba1
commit 98bbc0ab14
1 changed files with 6 additions and 6 deletions
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12
packages/graph/src/msdos/graph.pp
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@ -1680,11 +1680,11 @@ end;
{$else FPC_MM_HUGE} {$else FPC_MM_HUGE}
mov es, [SegA000] mov es, [SegA000]
{$endif FPC_MM_HUGE} {$endif FPC_MM_HUGE}
mov ax, [X] { Get X address } mov di, [X] { Get X address }
add ax, [StartXViewPort] add di, [StartXViewPort]
mov di, ax mov ax, di
mov cl, 3 mov cl, 3
shr ax, cl shr di, cl
mov bx, [Y] mov bx, [Y]
add bx, [StartYViewPort] add bx, [StartYViewPort]
@ -1694,7 +1694,7 @@ end;
shl si, 1 { SI=32*(Y+StartYViewPort)*32 } shl si, 1 { SI=32*(Y+StartYViewPort)*32 }
shl si, 1 { SI=64*(Y+StartYViewPort)*64 } shl si, 1 { SI=64*(Y+StartYViewPort)*64 }
add si, bx { SI=(64+16)*(Y+StartYViewPort)=80*(Y+StartYViewPort) } add si, bx { SI=(64+16)*(Y+StartYViewPort)=80*(Y+StartYViewPort) }
add si, ax { SI=correct offset into video segment } add si, di { SI=correct offset into video segment }
add si, [VideoOfs] { Point to correct page offset... } add si, [VideoOfs] { Point to correct page offset... }
mov dx,03ceh mov dx,03ceh
@ -1702,7 +1702,7 @@ end;
out dx,ax out dx,ax
inc dx inc dx
mov cx, di mov cx, ax
and cl,7 and cl,7
mov bh, 080h mov bh, 080h