mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-04 19:05:42 +00:00
157 lines
3.0 KiB
Plaintext
157 lines
3.0 KiB
Plaintext
NEW
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AUTO 3,1
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*--------------------------------------
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SHARED.IsIDValid
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cmp #'.'
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beq SHARED.IsDigit.8
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cmp #'_'
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beq SHARED.IsDigit.8
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SHARED.IsDigitOrL
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cmp #'z'+1
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bcs SHARED.IsDigit.RTS
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cmp #'a'
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bcs SHARED.IsDigit.8
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SHARED.IsDigitOrUC
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cmp #'Z'+1
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bcs SHARED.IsDigit.RTS
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cmp #'A'
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bcs SHARED.IsDigit.8
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jmp ZP.IsDigit
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SHARED.IsDigit.9
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sec
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rts
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SHARED.IsDigit.8
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clc
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SHARED.IsDigit.RTS
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rts
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*--------------------------------------
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SHARED.IsHexDigit
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jsr ZP.IsDigit
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bcc .8
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cmp #'A'
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bcc SHARED.IsDigit.9
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cmp #'F'+1
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bcc .1
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cmp #'a'
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bcc SHARED.IsDigit.9
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cmp #'f'+1
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bcs SHARED.IsDigit.RTS
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eor #$20
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.1
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* clc
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sbc #'A'-11 cc so A->10 (11-CC)
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clc
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.8 and #$0F
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rts
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*--------------------------------------
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SHARED.TXTPTR.GetY
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sta CLRREADAUX
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lda (TXTPTR),y
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sta SETREADAUX
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rts
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*--------------------------------------
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SHARED.TXTPTR.GetNext
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sta CLRREADAUX
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lda (TXTPTR)
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sta SETREADAUX
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beq SHARED.RTS
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SHARED.TXTPTR.Next
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inc TXTPTR
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bne SHARED.RTS
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inc TXTPTR+1
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rts
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*--------------------------------------
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SHARED.FORPNT.getY
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sta CLRREADAUX
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lda (FORPNT),y
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sta SETREADAUX
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rts
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*--------------------------------------
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SHARED.FORPNT.PutY
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sta CLRWRITEAUX
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sta (FORPNT),y
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sta SETWRITEAUX
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rts
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*--------------------------------------
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SHARED.FORPNT.GetNext
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sta CLRREADAUX
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lda (FORPNT)
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sta SETREADAUX
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bra SHARED.FORPNT.Next
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*--------------------------------------
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SHARED.FORPNT.PutNext
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sta CLRWRITEAUX
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sta (FORPNT)
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sta SETWRITEAUX
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SHARED.FORPNT.Next
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inc FORPNT
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bne SHARED.RTS
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inc FORPNT+1
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SHARED.RTS rts
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*--------------------------------------
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SHARED.GetCharPtr1
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lda (ZPPtr1)
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beq SHARED.RTS
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inc ZPPtr1
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bne .8
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inc ZPPtr1+1 never Z
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.8 rts
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*--------------------------------------
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SHARED.AddYp1ToPtr1
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sec
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.HS 90 BCC
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SHARED.AddYToPtr1
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clc
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tya
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adc ZPPtr1
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sta ZPPtr1
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bcc .8
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inc ZPPtr1+1
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.8 rts
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*--------------------------------------
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SHARED.AddYp1ToPtr2
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sec
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.HS 90 BCC
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SHARED.AddYToPtr2
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clc
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tya
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adc ZPPtr2
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sta ZPPtr2
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bcc .8
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clc keep CC as some JMP exit here
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inc ZPPtr2+1
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.8 rts
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*--------------------------------------
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SHARED.GetCharPtr2
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lda (ZPPtr2)
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bne SHARED.NextCharPtr2
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rts
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SHARED.PutCharPtr2
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sta (ZPPtr2)
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SHARED.NextCharPtr2
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inc ZPPtr2
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bne .8
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inc ZPPtr2+1
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.8 rts
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*--------------------------------------
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SHARED.ZPPtr3.GetY
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sta CLRREADAUX
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lda (ZPPtr3),y
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sta SETREADAUX
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rts
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*--------------------------------------
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SHARED.GetScrnDevX
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sta CLRREADAUX
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lda A2osX.SCRNDEVS,x
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sta SETREADAUX
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rts
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*--------------------------------------
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MAN
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SAVE usr/src/sys/kernel.s.shared
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LOAD usr/src/sys/kernel.s
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ASM
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