S-C DisAssembler
1000 *SAVE D.DISASM
1010 *--------------------------------
1020 CALL.INSDS2
1030 JSR DISPLAY.PC
1040 JSR GET.NEXT.OBJ.BYTE
1050 STA OPCODE
1060 BIT MLI.CALL.FLAG
1070 BMI .6 INSIDE AN MLI CALL
1080 TAY
1090 LSR EVEN/ODD FOR INDEXING FORMAT
1100 TAX
1110 LDA FORMAT.INDEX.TABLE,X
1120 BCS .1
1130 LSR
1140 LSR
1150 LSR
1160 LSR
1170 .1 AND #$0F
1180 TAX FORMAT INDEX
1190 LDA FORMAT.TABLE,X
1200 STA FORMAT
1210 AND #3
1220 STA LENGTH
1230 LDA MNEMONIC.LEFT,Y
1240 STA MNEMONIC
1250 LDA MNEMONIC.RIGHT,Y
1260 STA MNEMONIC+1
1270 LDY LENGTH 0,1,2
1280 BEQ .4 ...NO OPERAND
1290 .15 JSR GET.NEXT.OBJ.BYTE
1300 STA OPERAND.LO
1310 LDY LENGTH
1320 DEY
1330 TYA IF 2-BYTE INSTRUCTION, A=0
1340 BEQ .2
1350 JSR GET.NEXT.OBJ.BYTE
1360 .2 STA OPERAND.HI
1370 LDA FORMAT IS IT RELATIVE FORMAT?
1380 CMP FORMAT.RELATIVE
1390 BNE .4 ...NO
1400 *---COMPUTE REAL ADDRESS---------
1410 LDY PC+1
1420 LDA OPERAND.LO GET RELATIVE OFFSET
1430 BPL .21 ...POSITIVE OFFSET
1440 DEY ...NEGATIVE OFFSET
1450 .21 ADC PC (CARRY WAS SET ABOVE)
1460 BCC .22
1470 INY
1480 .22 STA OPERAND.LO BUMP IT ONCE MORE
1490 INC OPERAND.LO
1500 BNE .3
1510 INY
1520 .3 STY OPERAND.HI
1530 *---CHECK FOR MLI CALL-----------
1540 .4 LSR MLI.CALL.FLAG CLEAR FLAG FIRST
1550 LDA OPCODE
1560 CMP #$20
1570 BNE .5 ...NOT MLI CALL
1580 LDA OPERAND.HI
1590 CMP #$BF
1600 BNE .5 ...NOT MLI CALL
1610 LDA OPERAND.LO
1620 BNE .5 ...NOT MLI CALL
1630 ROR MLI.CALL.FLAG
1640 .5 RTS
1650 *---HANDLE REST OF MLI CALL------
1660 .6 LDY #2
1670 STY LENGTH
1680 STY FORMAT
1690 BNE .15 ...ALWAYS
1700 *--------------------------------
1710 GET.NEXT.OBJ.BYTE
1720 JSR MLI
1730 .DA #$CA,P.READ
1740 BCC .1
1750 LDY #Q.OUTOFDATA
1760 JMP MLI.ERROR
1770 .1 LDA INBYTE
1780 RTS
1790 *--------------------------------
1800 DISPLAY.PASS.NO
1810 .DO 1
1820 LDY #5
1830 .1 LDA PASSQT,Y
1840 JSR MON.COUT
1850 DEY
1860 BPL .1
1870 .ELSE
1880 LDY #Q.PASS
1890 JSR QT.OUT
1900 .FIN
1910 CLC
1920 LDA PASS
1930 ADC #"1"
1940 JMP MON.COUT
1950 *--------------------------------
1960 PASSQT .AS -/ SSAP/
1970 .HS 8D
1980 *--------------------------------
1990 FORMAT.INDEX.TABLE
2000 .LIST OFF
2010 .HS 0400.2220.0100.3330 0-
2020 .HS B5C0.2660.0800.3770 1-
2030 .HS 3400.2220.0100.3330 2-
2040 .HS B5C0.6660.0800.7770 3-
2050 .HS 0400.0220.0100.3330 4-
2060 .HS B5C0.0660.0800.0770 5-
2070 .HS 0400.2220.0100.9330 6-
2080 .HS B5C0.6660.0800.D770 7-
2090 .HS B400.2220.0100.3330 8-
2100 .HS B5C0.66A0.0800.3770 9-
2110 .HS 1410.2220.0100.3330 A-
2120 .HS B5C0.66A0.0800.7780 B-
2130 .HS 1400.2220.0100.3330 C-
2140 .HS B5C0.0660.0800.0770 D-
2150 .HS 1400.2220.0100.3330 E-
2160 .HS B5C0.0660.0800.0770 F-
2170 .DO LISTING
2180 .LIST ONN
2190 .FIN
2200 *--------------------------------
2210 FORMAT.TABLE
2220 .HS 00 0 -- NONE
2230 FORMAT.IMMEDIATE
2240 .HS 81 1 -- IMM
2250 .HS 21 2 -- ZP
2260 .HS 22 3 -- ABS
2270 .HS 79 4 -- (ZP,X)
2280 .HS 6D 5 -- (ZP),Y
2290 .HS 31 6 -- ZP,X
2300 .HS 32 7 -- ABS,X
2310 .HS 26 8 -- ABS,Y
2320 .HS 6A 9 -- (ABS)
2330 .HS 25 A -- ZP,Y
2340 FORMAT.RELATIVE
2350 .HS 2D B -- RELATIVE
2360 .HS 69 C -- (ZP)
2370 .HS 7A D -- (ABS,X)
2380 .HS 00 E
2390 .HS 00 F
2400 *--------------------------------
2410 CHAR1 .HS 2C.29.2C.00.28.23 , ) , W ( #
2420 CHAR2 .HS 59.00.58.00.00.24 Y . X . . $
2430 *--------------------------------
2440 MNEMONIC.LEFT
2450 .LIST OFF
2460 .HS 1C.84.00.00.AD.84.15.00.8A.84.15.00.AD.84.15.00.
2470 .HS 1C.84.84.00.AC.84.15.00.23.84.53.00.AC.84.15.00.
2480 .HS 5D.13.00.00.1A.13.9C.00.8B.13.9C.00.1A.13.9C.00.
2490 .HS 1B.13.13.00.1A.13.9C.00.A1.13.29.00.1A.13.9C.00.
2500 .HS 9D.34.00.00.00.34.6D.00.8A.34.6D.00.5B.34.6D.00.
2510 .HS 1D.34.34.00.00.34.6D.00.23.34.8A.00.00.34.6D.00.
2520 .HS 9D.11.00.00.A5.11.9C.00.8B.11.9C.00.5B.11.9C.00.
2530 .HS 1D.11.11.00.A5.11.9C.00.A1.11.8B.00.5B.11.9C.00.
2540 .HS 1C.A5.00.00.A5.A5.A5.00.29.1A.AE.00.A5.A5.A5.00.
2550 .HS 19.A5.A5.00.A5.A5.A5.00.AE.A5.AE.00.A5.A5.A5.00.
2560 .HS 69.69.69.00.69.69.69.00.A8.69.A8.00.69.69.69.00.
2570 .HS 19.69.69.00.69.69.69.00.23.69.AD.00.69.69.69.00.
2580 .HS 24.23.00.00.24.23.29.00.53.23.29.00.24.23.29.00.
2590 .HS 1B.23.23.00.00.23.29.00.23.23.8A.00.00.23.29.00.
2600 .HS 24.A0.00.00.24.A0.53.00.53.A0.7C.00.24.A0.53.00.
2610 .HS 19.A0.A0.00.00.A0.53.00.A1.A0.8B.00.00.A0.53.00.
2620 .DO LISTING
2630 .LIST ONN
2640 .FIN
2650 *--------------------------------
2660 MNEMONIC.RIGHT
2670 .LIST OFF
2680 .HS D8.C4.00.00.06.C4.1A.00.62.C4.1A.00.06.C4.1A.00.
2690 .HS 5A.C4.C4.00.C6.C4.1A.00.48.C4.C8.00.C6.C4.1A.00.
2700 .HS 26.CA.00.00.AA.CA.1A.00.62.CA.1A.00.AA.CA.1A.00.
2710 .HS 94.CA.CA.00.AA.CA.1A.00.88.CA.88.00.AA.CA.1A.00.
2720 .HS 54.26.00.00.00.26.26.00.44.26.26.00.A2.26.26.00.
2730 .HS C8.26.26.00.00.26.26.00.54.26.74.00.00.26.26.00.
2740 .HS 68.48.00.00.76.48.26.00.44.48.26.00.A2.48.26.00.
2750 .HS E8.48.48.00.76.48.26.00.94.48.74.00.A2.48.26.00.
2760 .HS C4.44.00.00.74.44.72.00.B4.AA.44.00.74.44.72.00.
2770 .HS 08.44.44.00.74.44.72.00.84.44.68.00.76.44.76.00.
2780 .HS 74.44.72.00.74.44.72.00.B4.44.B2.00.74.44.72.00.
2790 .HS 28.44.44.00.74.44.72.00.6E.44.32.00.74.44.72.00.
2800 .HS 74.A2.00.00.74.A2.88.00.F4.A2.B2.00.74.A2.88.00.
2810 .HS CC.A2.A2.00.00.A2.88.00.4A.A2.72.00.00.A2.88.00.
2820 .HS 72.C8.00.00.72.C8.C8.00.F2.C8.22.00.72.C8.C8.00.
2830 .HS A4.C8.C8.00.00.C8.C8.00.8A.C8.72.00.00.C8.C8.00.
2840 .DO LISTING
2850 .LIST ONN
2860 .FIN
2870 *--------------------------------
D.QSORT