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typos

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This commit is contained in:
Dennis Yurichev 2015-08-13 06:16:59 +03:00
commit 897e853a42
16 changed files with 102 additions and 102 deletions
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2
src/chapter-12.md
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@ -346,7 +346,7 @@ For example, you'd certainly expect a sequence such as
pop ax pop ax
ret ret
pop ax pop ax
et ret
: :
``` ```

6
src/chapter-44.md
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@ -447,7 +447,7 @@ DrawRectParms ends
mov dh,RightMask[bx] ;set the right-edge clip mask mov dh,RightMask[bx] ;set the right-edge clip mask
mov bx,LeftX[bp] mov bx,LeftX[bp]
and bx,NOT 7 ;intrapixel address of left edge and bx,NOT 7 ;intrapixel address of left edge
su si,bx sub si,bx
shr si,1 shr si,1
shr si,1 shr si,1
shr si,1 ;# of bytes across spanned by rectangle - 1 shr si,1 ;# of bytes across spanned by rectangle - 1
@ -455,7 +455,7 @@ DrawRectParms ends
and dl,dh ; combine the masks and dl,dh ; combine the masks
MasksSet: MasksSet:
mov bx,BottomY[bp] mov bx,BottomY[bp]
su bx,TopY[bp] ;# of scan lines to fill - 1 sub bx,TopY[bp] ;# of scan lines to fill - 1
FillLoop: FillLoop:
push di ;remember line start offset push di ;remember line start offset
mov al,dl ;left edge clip mask mov al,dl ;left edge clip mask
@ -661,7 +661,7 @@ TextUpDone:
CharUp: ;draws the character in AL at ES:DI CharUp: ;draws the character in AL at ES:DI
lds si,[BIOS8x8Ptr] ;point to the 8x8 font start lds si,[BIOS8x8Ptr] ;point to the 8x8 font start
mov bl,al mov bl,al
su bh,bh sub bh,bh
shl bx,1 shl bx,1
shl bx,1 shl bx,1
shl bx,1 ;*8 to look up character offset in font shl bx,1 ;*8 to look up character offset in font

10
src/chapter-46.md
View file

@ -499,7 +499,7 @@ parms ends
les di,[bp+BufferPtr] les di,[bp+BufferPtr]
mov dx,[bp+RectHeight] mov dx,[bp+RectHeight]
mov bx,[bp+BufferWidth] mov bx,[bp+BufferWidth]
su bx,[bp+RectWidth] ;distance from end of one dest scan sub bx,[bp+RectWidth] ;distance from end of one dest scan
; to start of next ; to start of next
mov al,byte ptr [bp+Color] mov al,byte ptr [bp+Color]
mov ah,al ;double the color for REP STOSW mov ah,al ;double the color for REP STOSW
@ -544,7 +544,7 @@ parms2 ends
mov bx,[bp+Pixels] mov bx,[bp+Pixels]
mov dx,[bp+ImageHeight] mov dx,[bp+ImageHeight]
mov ax,[bp+BufferWidth2] mov ax,[bp+BufferWidth2]
su ax,[bp+ImageWidth] ;distance from end of one dest scan sub ax,[bp+ImageWidth] ;distance from end of one dest scan
mov [bp+BufferWidth2],ax ; to start of next mov [bp+BufferWidth2],ax ; to start of next
RowLoop2: RowLoop2:
mov cx,[bp+ImageWidth] mov cx,[bp+ImageWidth]
@ -556,7 +556,7 @@ ColumnLoop:
mov es:[di],al mov es:[di],al
SkipPixel: SkipPixel:
inc bx ;point to next source pixel inc bx ;point to next source pixel
inc d ;point to next dest pixel inc di ;point to next dest pixel
dec cx dec cx
jnz ColumnLoop jnz ColumnLoop
add di,[bp+BufferWidth2] ;point to next scan to fill add di,[bp+BufferWidth2] ;point to next scan to fill
@ -596,9 +596,9 @@ parms3 ends
lds si,[bp+SrcBufferPtr] lds si,[bp+SrcBufferPtr]
mov dx,[bp+CopyHeight] mov dx,[bp+CopyHeight]
mov bx,[bp+DestBufferWidth] ;distance from end of one dest scan mov bx,[bp+DestBufferWidth] ;distance from end of one dest scan
su bx,[bp+CopyWidth] ; of copy to the next sub bx,[bp+CopyWidth] ; of copy to the next
mov ax,[bp+SrcBufferWidth] ;distance from end of one source scan mov ax,[bp+SrcBufferWidth] ;distance from end of one source scan
su ax,[bp+CopyWidth] ; of copy to the next sub ax,[bp+CopyWidth] ; of copy to the next
RowLoop3: RowLoop3:
mov cx,[bp+CopyWidth] ;# of bytes to copy mov cx,[bp+CopyWidth] ;# of bytes to copy
shr cx,1 shr cx,1