Apple II User Manual
0427 8291 18 CLC
0428 8292 60 M29 RTS
0429 8293 EE 4A A6 INCP3 INC P3L ;INCREMENT P3 (16 BITS)
0429 8293 EE 4A A6 INCP3 INC P3L ;INCREMENT P3 (16 BITS)
0430 8296 D0 03 BNE *+5
0431 8298 EE 4B A6 INC P3H
0431 8298 EE 4B A6 INC P3H
0432 829B 60 RTS
0433 829C AE 4D A6 P2SCR LDX P2H ;MOVE P2 TO FE,FF
0433 829C AE 4D A6 P2SCR LDX P2H ;MOVE P2 TO FE,FF
0434 829F 86 FF STX $FF
0435 82A1 AE 4C A6 LDX P2L
0435 82A1 AE 4C A6 LDX P2L
0436 82A4 86 FE STX $FE
0437 82A6 60 RTS
0437 82A6 60 RTS
0438 82A7 AE 4B A6 P3SCR LDX P3H ;MOVE P3 TO FE,FF
0439 82AA 86 FF STX $FF
0439 82AA 86 FF STX $FF
0440 82AC AE 4A A6 LDX P3L
0441 82AF 86 FE STX $FE
0441 82AF 86 FE STX $FE
0442 82B1 60 RTS
0443 82B2 E6 FE INCCMP INC $FE ;INCREM FE,FF, COMPARE TO P3
0443 82B2 E6 FE INCCMP INC $FE ;INCREM FE,FF, COMPARE TO P3
0444 82B4 D0 14 BNE COMPAR
0445 82B6 E6 FF INC $FF
0445 82B6 E6 FF INC $FF
0446 82B8 D0 10 WRAP BNE COMPAR ;TEST TO WRAP AROUND
0447 82BA 2C BD 82 BIT EXWRAP
0447 82BA 2C BD 82 BIT EXWRAP
0448 82BD 60 EXWRAP RTS
0449 82BE A5 FE DECCMP LDA $FE ;DECREM FE,FF AND COMPARE TO P3
0449 82BE A5 FE DECCMP LDA $FE ;DECREM FE,FF AND COMPARE TO P3
0450 82C0 D0 06 BNE M32
0451 82C2 A5 FF LDA $FF
0451 82C2 A5 FF LDA $FF
0452 82C4 F0 F2 BEQ WRAP
0453 82C6 C6 FF DEC $FF
0453 82C6 C6 FF DEC $FF
0454 82C8 C6 FE M32 DEC $FE
0455 82CA 20 88 81 COMPAR JSR SAVER ;COMPARE FE,FF TO P3
0455 82CA 20 88 81 COMPAR JSR SAVER ;COMPARE FE,FF TO P3
0456 82CD A5 FF LDA $FF
0457 82CF CD 4B A6 CMP P3H
0457 82CF CD 4B A6 CMP P3H
0458 82D2 D0 05 BNE EXITCP
0459 82D4 A5 FE LDA $FE
0459 82D4 A5 FE LDA $FE
0460 82D6 CD 4A A6 CMP P3L
0461 82D9 B8 EXITCP CLV
0461 82D9 B8 EXITCP CLV
0462 82DA 4C BE 81 JMP RESXF
0463 82DD 08 CHKSAD PHP ;16 BIT CKSUM IN SCR6,7
0463 82DD 08 CHKSAD PHP ;16 BIT CKSUM IN SCR6,7
0464 82DE 48 PHA
0465 82DF 18 CLC
0465 82DF 18 CLC
0466 82E0 6D 36 A6 ADC SCR6
0467 82E3 8D 36 A6 STA SCR6
0467 82E3 8D 36 A6 STA SCR6
0468 82E6 90 03 BCC M33
0469 82E8 EE 37 A6 INC SCR7
0469 82E8 EE 37 A6 INC SCR7
0470 82EB 68 M33 PLA
0471 82EC 28 PLP
0471 82EC 28 PLP
0472 82ED 60 RTS
0473 82EE AD 59 A6 OUTPC LDA PCLR ;OUTPUT PC
0473 82EE AD 59 A6 OUTPC LDA PCLR ;OUTPUT PC
0474 82F1 AE 5A A6 LDX PCHR
0475 82F4 48 OUTXAH PHA
0475 82F4 48 OUTXAH PHA
0476 82F5 8A TXA
0477 82F6 20 FA 82 JSR OUTBYT
0477 82F6 20 FA 82 JSR OUTBYT
0478 82F9 68 PLA
0479 82FA 48 OUTBYT PHA ;OUTPUT 2 HEX DIGS FROM A
0479 82FA 48 OUTBYT PHA ;OUTPUT 2 HEX DIGS FROM A
0480 82FB 48 PHA
0481 82FC 4A LSR A
0481 82FC 4A LSR A
0482 82FD 4A LSR A
0483 82FE 4A LSR A
0483 82FE 4A LSR A
0484 82FF 4A LSR A
0485 8300 20 44 8A JSR NBASOC
0485 8300 20 44 8A JSR NBASOC
0486 8303 68 PLA
0487 8304 20 44 8A JSR NBASOC
0487 8304 20 44 8A JSR NBASOC
0488 8307 68 PLA