mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-22 00:32:44 +00:00
190 lines
3.4 KiB
Plaintext
190 lines
3.4 KiB
Plaintext
NEW
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AUTO 3,1
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*--------------------------------------
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* GP.FIAUXTYPE = ORG
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* GP.MLIRW.DATAPTR = new ORG
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*--------------------------------------
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BSX.RelOfs .BS 2
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BSX.RelStart .BS 2
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BSX.RelEnd .BS 2
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BSX.RelStop .BS 2
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*--------------------------------------
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BSX.Rel lda GP.MLIRW.DATAPTR
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sta ZP.A1L
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sec
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sbc GP.FIAUXTYPE
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sta BSX.RelOfs
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lda GP.MLIRW.DATAPTR+1
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sta ZP.A1L+1
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sbc GP.FIAUXTYPE+1
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sta BSX.RelOfs+1
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lda GP.FIAUXTYPE
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sta BSX.RelStart
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lda GP.FIAUXTYPE+1
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sta BSX.RelStart+1
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ldy #10
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lda (ZP.A1L),y
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sta BSX.RelEnd
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iny
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lda (ZP.A1L),y
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sta BSX.RelEnd+1
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ldy #8
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lda (ZP.A1L),y
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clc
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adc BSX.RelOfs
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sta BSX.RelStop
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iny
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lda (ZP.A1L),y
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adc BSX.RelOfs+1
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sta BSX.RelStop+1
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ldy #4
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lda (ZP.A1L),y
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sta GP.AllowedBITS
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iny
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lda (ZP.A1L),y
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sta GP.AllowedBITS+1
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ldy #2
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jsr BSX.RelAtA1Y relocate CLD JMP CODE.START
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lda #16 skip header
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jsr BSX.RelSkipA
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.1 ldy #1
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lda (ZP.A1L),y
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ora (ZP.A1L)
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beq .20
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dey ldy #0
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jsr BSX.RelAtA1Y
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lda #2
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jsr BSX.RelSkipA
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bra .1
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.20 lda #2
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jsr BSX.RelSkipA
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.2 lda (ZP.A1L)
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lsr
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tax
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lda BSX.65R02,x
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bcs .3
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lsr
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lsr
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lsr
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lsr
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.3 and #$0f
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bit #$08
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beq .7
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and #$07
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pha
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ldy #1
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jsr BSX.RelAtA1Y
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lda (ZP.A1L)
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cmp #$20 JSR
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bne .6
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ldy #1
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lda (ZP.A1L),y
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bne .6
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iny
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lda (ZP.A1L),y
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cmp #$BF jsr $BF00 ?
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bne .6
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pla
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lda #6
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pha
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.6 pla
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.7 clc
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adc ZP.A1L
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sta ZP.A1L
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bcc .8
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inc ZP.A1L+1
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.8 cmp BSX.RelStop
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lda ZP.A1L+1
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sbc BSX.RelStop+1
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bcc .2
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clc
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rts
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*--------------------------------------
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BSX.RelAtA1Y lda (ZP.A1L),y
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tax
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iny
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cpx BSX.RelStart
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lda (ZP.A1L),y
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sbc BSX.RelStart+1
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bcc .9
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cpx BSX.RelEnd
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lda (ZP.A1L),y
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sbc BSX.RelEnd+1
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bcs .9
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dey
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lda (ZP.A1L),y
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clc
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adc BSX.RelOfs
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sta (ZP.A1L),y
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iny
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lda (ZP.A1L),y
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adc BSX.RelOfs+1
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sta (ZP.A1L),y
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.9 rts
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*--------------------------------------
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BSX.RelSkipA clc
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adc ZP.A1L
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sta ZP.A1L
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bcc .8
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inc ZP.A1L+1
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.8 rts
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*--------------------------------------
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* 65R02 OPCODES
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*--------------------------------------
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* 0.1.2.3.4.5.6.7.8.9.A.B.C.D.E.F
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BSX.65R02 .HS 1.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
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.HS B.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
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.HS 1.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.1.B.B.3
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.HS 1.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.1.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
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.HS 2.2.2.1.2.2.2.2.1.B.1.1.1.B.B.3
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*--------------------------------------
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*--------------------------------------
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MAN
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SAVE usr/src/basic.fx/basic.s.xr
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LOAD usr/src/basic.fx/basic.s
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ASM
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