Apple ii Battery Charger User Manual


 
0799 859D 8D 4C A6 STA P2L
0800 85A0 18 CLC
0801 85A1 69 07 ADC #$07
0802 85A3 8D 4A A6 STA P3L
0803 85A6 AD 4B A6 LDA P3H
0804 85A9 8D 4D A6 STA P2H
0805 85AC 69 00 ADC #0
0806 85AE 8D 4B A6 STA P3H
0807 85B1 4C 40 86 JMP VER2+4
0808 85B4 C9 4A JUMP1 CMP #'J' ;JUMP (JUMP TABLE IN SYS RAM)
0809 85B6 D0 1F BNE L11B
0810 85B8 AD 4A A6 LDA P3L
0811 85BB C9 08 CMP #8 ;0-7 ONLY VALID
0812 85BD B0 26 BCS JUM2
0813 85BF 20 9C 8B JSR NACCES ;WRITE PROT SYS RAM
0814 85C2 0A ASL A
0815 85C3 A8 TAY
0816 85C4 A2 FF LDX #$FF ;INIT STK PTR
0817 85C6 9A TXS
0818 85C7 A9 7F LDA #$7F ;PUSH COLD RETURN
0819 85C9 48 PHA
0820 85CA A9 FF LDA #$FF
0821 85CC 48 PHA
0822 85CD B9 21 A6 LDA JTABLE+1,Y ;GET ADDR FROM TABLE
0823 85D0 48 PHA ;PUSH ON STACK
0824 85D1 B9 20 A6 LDA JTABLE,Y
0825 85D4 4C 08 84 JMP NR10 ;LOAD UP USER REG'S AND RTI
0826 85D7 C9 12 L11B CMP #$12 ;LOAD KIM FMT, 1 PARM
0827 85D9 D0 14 BNE L21B
0828 85DB A0 00 LDY #0 ;MODE = KIM
0829 85DD AD 4A A6 L11C LDA P3L
0830 85E0 C9 FF CMP #$FF ;ID MUST NOT BE FF
0831 85E2 D0 02 BNE *+4
0832 85E4 38 SEC
0833 85E5 60 JUM2 RTS
0834 85E6 20 08 82 JSR PSHOVE ;FIX PARM POSITION
0835 85E9 20 08 82 L11D JSR PSHOVE
0836 85EC 4C 78 8C JMP LENTRY
0837 85EF C9 13 L21B CMP #$13 ;LOAD TAPE, HS FMT, 1 PARM
0838 85F1 D0 04 BNE WPR1B
0839 85F3 A0 80 LDY #$80 ;MODE = HS
0840 85F5 D0 E6 BNE L11C
0841 85F7 C9 57 WPR1B CMP #'W' ;WRITE PROT USER RAM
0842 85F9 D0 1B BNE E1PARM
0843 85FB AD 4A A6 LDA P3L ; FIRST DIG IS 1K ABOVE 0,
0844 85FE 29 11 AND #$11 ; SECOND IS 2K ABOVE 0
0845 8600 C9 08 CMP #8 ; THIRD IS 3K ABOVE 0.
0846 8602 2A ROL A
0847 8603 4E 4B A6 LSR P3H
0848 8606 2A ROL A
0849 8607 0A ASL A
0850 8608 29 0F AND #$0F
0851 860A 49 0F EOR #$0F ;0 IS PROTECT
0852 860C 8D 01 AC STA OR3A
0853 860F A9 0F LDA #$0F
0854 8611 8D 03 AC STA DDR3A
0855 8614 18 CLC
0856 8615 60 RTS
0857 8616 4C 27 88 E1PARM JMP CALC3
0858 8619 B2PARM =*
0859 8619 ;
0860 8619 ; 2 PARAMETER EXEC BLOCKS