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- 100 open2,9,1,"0:bugsc.52300"
- 110 sys700
- 120 ;
- 130 *=52300
- 140 ;
- 150 .opt o2
- 160 ;
- 170 ptr = $22
- 180 channl = $13
- 190 curlin = $39
- 200 linnum = $14
- 210 txtptr = $7a
- 220 temp = $02
- 230 temp1 = $49
- 240 err = $02a7
- 250 row = $02a8
- 260 col = $02a9
- 270 print = $ab47
- 280 errtab = $a326
- 290 linkprg = $a533
- 300 clear = $a659
- 310 init = $a67a
- 320 error = $a36a
- 330 strout = $ab1e
- 340 fndlin = $a613
- 350 stop = $a82c
- 360 linprt = $bdcd
- 370 reslst = $a09e
- 380 warm1 = $e38b
- 390 list = $a6c9
- 400 ready1 = $a47b
- 410 nrmerr = $a43a
- 420 ierror = $0300
- 430 clrchn = $ffcc
- 440 plot = $fff0
- 450 ;
- 460 jsr linkprg ;re-set program pntrs
- 470 clc ; so user doesn't have
- 480 lda ptr ; to type new
- 490 adc #2
- 500 sta $2d
- 510 lda ptr+1
- 520 adc #0
- 530 sta $2e
- 540 jsr clear
- 550 lda #12 ;set border color
- 560 sta $d020 ;
- 570 lda #0 ;set background color
- 580 sta $d021 ;
- 590 ;
- 600 lda 646 ;
- 610 pha ;
- 620 ;
- 630 jsr title ;display title
- 640 lda ierror+1 ;set/reset
- 650 cmp #$e3 ; debug wedge
- 660 beq e1
- 670 ;
- 680 ldx #7
- 690 .byte $2c
- 700 e1 ldx #3
- 710 lda mtab,x
- 720 sta ierror+1
- 730 dex
- 740 lda mtab,x
- 750 sta mtab,x
- 760 sta ierror
- 770 stx $02
- 780 lda #<ms6
- 790 ldy #>ms6
- 800 jsr strout
- 810 ldx $02
- 820 dex
- 830 ldy mtab,x
- 840 dex
- 850 lda mtab,x
- 860 jsr strout
- 870 ;
- 880 pla ;
- 890 sta 646 ;
- 900 ;
- 910 jmp $a474
- 920 ;
- 930 start cpx #$30 ;error code?
- 940 bcc entry ;yes, continue
- 950 jmp warm1 ;no, exit
- 960 ;
- 970 entry lda curlin+1
- 980 cmp #$ff ;"direct mode?
- 990 bne entry1 ;no, [154]inue
- 1000 jmp nrmerr ;yes, exit
- 1010 ;
- 1020 entry1 stx err ;[148] err[176]
- 1030 lda #0 ;reset basic
- 1040 sta channl
- 1050 jsr init
- 1060 ;
- 1070 lda 646 ;[148] char col[176]
- 1080 pha ;
- 1090 ;
- 1100 lda #[179]ms1 ;display err[176]
- 1110 ldy #[177]ms1 ; message
- 1120 jsr strout
- 1130 lda err
- 1140 asl a
- 1150 tax
- 1160 lda errtab,x
- 1170 sta ptr
- 1180 lda errtab[170]1,x
- 1190 sta ptr[170]1
- 1200 ldy #0
- 1210 eloop lda (ptr),y
- 1220 pha
- 1230 [175] #$7f
- 1240 jsr [153]
- 1250 iny
- 1260 pla
- 1270 bpl eloop
- 1280 lda #[179]ms2
- 1290 ldy #[177]ms2
- 1300 jsr strout
- 1310 ;
- 1320 lda $d021 ;
- 1330 [175] #15 ;
- 1340 cmp #1 ;
- 1350 beq floyd ;
- 1360 lda #5 ;
- 1370 .byte $2c
- 1380 floyd lda #144
- 1390 jsr $ffd2 ;
- 1400 ;
- 1410 lda curlin ;[161] basic
- 1420 ldx curlin[170]1 ; line number.
- 1430 sta linnum ;find address
- 1440 stx linnum[170]1 ; of basic line
- 1450 jsr [165]dlin
- 1460 sec ;calculate [185]iti[145]
- 1470 lda txtptr ; of err[176] in
- 1480 sbc $5f ; basic line
- 1490 sta temp
- 1500 jsr l1 ;[155] [164] crt.
- 1510 ;
- 1520 pla ;[140] char col[176]
- 1530 sta 646 ;
- 1540 ;
- 1550 ldx row ;set curs[176]
- 1560 ldy col ; [185]iti[145] [145]
- 1570 clc ; basic line
- 1580 jsr plot
- 1590 ldx #3 ;reset screen
- 1600 l0 lda btab,x ; edi[164]r po[181]ers
- 1610 sta $0277,x
- 1620 dex
- 1630 bpl l0
- 1640 lda #4
- 1650 sta $c6
- 1660 jmp [135]y1 ;exit [164] basic
- 1670 ;
- 1680 l1 ldy #1 ;list routine
- 1690 sty $0f
- 1700 lda ($5f),y
- 1710 beq l7
- 1720 iny
- 1730 lda ($5f),y
- 1740 tax
- 1750 iny
- 1760 lda ($5f),y
- 1770 l3 sty temp1
- 1780 jsr linprt
- 1790 lda #$20
- 1800 l4 ldy temp1
- 1810 [175] #$7f
- 1820 l5 jsr [153]
- 1830 cmp #34
- 1840 bne l6
- 1850 lda $0f
- 1860 e[176] #$ff
- 1870 sta $0f
- 1880 l6 iny
- 1890 beq l7
- 1900 cpy temp
- 1910 bne l12
- 1920 tya
- 1930 pha
- 1940 sec
- 1950 jsr plot ;save screen
- 1960 stx row ;[185]iti[145] at
- 1970 sty col ;err[176] locati[145]
- 1980 pla
- 1990 tay
- 2000 l12 lda ($5f),y
- 2010 bne l8
- 2020 l7 rts
- 2030 l8 bpl l5
- 2040 cmp #$ff
- 2050 beq l5
- 2060 bit $0f
- 2070 bmi l5
- 2080 sec
- 2090 sbc #$7f
- 2100 tax
- 2110 sty temp1
- 2120 ldy #$ff
- 2130 l9 dex
- 2140 beq l11
- 2150 l10 iny
- 2160 lda reslst,y
- 2170 bpl l10
- 2180 bmi l9
- 2190 l11 iny
- 2200 lda reslst,y
- 2210 bmi l4
- 2220 jsr [153]
- 2230 bne l11
- 2240 fil lda #13
- 2250 jsr $ffd2
- 2260 ldy #7
- 2270 fil2 lda #$20
- 2280 jsr $ffd2
- 2290 dey
- 2300 bne fil2
- 2310 lda #$12
- 2320 jsr $ffd2
- 2330 lda #$1f
- 2340 jmp $ffd2
- 2350 ;
- 2360 title lda #0
- 2370 sta $2
- 2380 lp1 ldy $2
- 2390 lda ms3,y
- 2400 bne lp4
- 2410 jsr fil
- 2420 jmp lp8
- 2430 lp4 cmp #255
- 2440 bne lp6
- 2450 rts
- 2460 lp6 jsr $ffd2
- 2470 lp8 inc $2
- 2480 jmp lp1
- 2490 ;
- 2500 ;
- 2510 ;
- 2520 ms1 .byte $93,$1c,$5b,0
- 2530 ms2 .[198] " error]"
- 2540 .byte 13,13,0
- 2550 ms3 .byte $93,9,142,0
- 2560 .[198] "step"
- 2570 .byte $9a
- 2580 .[198] " "
- 2590 .byte 0,$20,$9a
- 2600 .[198] " loadstar presents "
- 2610 .byte 0,$20,$9a
- 2620 .[198] " bug scout "
- 2630 .byte 0,$20,$9a
- 2640 .[198] " by rick nash "
- 2650 .byte 0,$20,$9a
- 2660 .[198] " (c) softdisk publishing "
- 2670 .byte 0,$20,$9a
- 2680 .[198] " "
- 2690 .byte 0
- 2700 .[198] " "
- 2710 .byte 146
- 2720 .[198] "step"
- 2730 .byte 13,13,13,255
- 2740 ms4 .[198] "installed"
- 2750 .byte 13,13,0
- 2760 ms5 .[198] "removed"
- 2770 .byte 13,13,0
- 2780 ms6 .byte 159
- 2790 .[198] " bug scout is now "
- 2800 .byte 0
- 2810 mtab .w[176]d ms4,start,ms5,$e38b
- 2820 btab .byte $11,$11,$91,$91
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