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https://github.com/A2osX/A2osX.git
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37 lines
600 B
Plaintext
37 lines
600 B
Plaintext
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PR#3
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PREFIX /A2OSX.BUILD
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LOMEM $A00
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INC 1
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AUTO 6
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.LIST OFF
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*--------------------------------------
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* BitBlt
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* In : YA = Ptr to CtrlBlk :
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* 1 : OP
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* 4 : SrcX1
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* 6 : SrcY1
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* 8 : SrcX2
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* 10 : SrcY2
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* 12 : DestX
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* 14 : DestY
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* 16 : SrcPtr
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* 18 : DstPtr
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*--------------------------------------
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BITBLT >STYA ZPBase
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ldy #S.CB.DstPtr+1
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.1 lda (ZPBase),y
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sta CB.Cache,y
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dey
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bpl .1
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clc
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rts
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/DRV/DHGR.DRV.S.BLT
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LOAD /A2OSX.SRC/DRV/DHGR.DRV.S
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ASM
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