jmechner April 17, 2012
Attempted line ending fix

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     lst off
     org $E00
    errcode = 0get8bit = $E74C
    buffer = $1000 ;7 tracks longbufferend = buffer+$7E00
    rw18 = $D000 ;both versions!
    slot = $FDtrack = $FElastrack = $FF
    *-------------------------------------------------** CALL RT - moves rw18 routines to their homes in aux mem** CALL RT+3,<5.25" slot>,<BbundID>,<start track>,<end track>*          ,<3.5" slot>,<block offset>*
     jmp move
    * Get source information:
    start jsr get8bit stx slot525 jsr get8bit stx BbundID jsr get8bit stx track jsr get8bit inx stx ENDtrack
    * Destination information
     jsr get8bit stx slot35 jsr $DEBE ;get16bit jsr $DD67 jsr $E752 sty Boffset sta Boffset+1
    * From now on we are using aux zpage and $D000
     lda track sta $C009 sta track
     jsr recal525
    loop lda track
     pha jsr read525 bcs :plarts pla
     sta track jsr write35 bcs :rts
     lda track eor ENDtrack bne loop
     pha
    :plarts pla:rts lda #0 rol sta $C008 ;back to main mem sta errcode bit $C081 rts
    ENDtrack db $11
    *------------------------------------------------- read525** Read up to 7 tracks from 5.25" floppy.*
    read525 jsr prep525
    * Drive on, delay .5 seconds
     jsr rw18 db 0,1,5
    * Read until buffer is full
     lda #>buffer
    :loop sta :readbuf
     jsr rw18 db $43 ;auto-inc, readsequ:readbuf db $11 bcs :error
     lda :readbuf jsr buffend? bcc :loop clc
    :error php jsr rw18 db 1 ;drive off plp rts
    *------------------------------------------------- buffend?** Have we reached the end of buffer, or ENDtrack?* Enter: a - last buffer address** Exit: cs - no more buffer, or ENDtrack reached*       cc - keep going, a=new buffer address*
    buffend? clc adc #$12 cmp #>bufferend bcs :rts
     ldy track cpy ENDtrack
    :rts rts
    *------------------------------------------------- prep525** Prepare to use 5.25" RW18 routine*
    * Normal RW18 routine is in second bank of $D000
    prep525 bit $C08B bit $C08B
    * Set slot of 5.25" drive
     lda #$11slot525 = *-1 asl asl asl asl sta slot tax
    * Turn off all phases
     lda $C080,x lda $C082,x lda $C084,x lda $C086,x
    * Set Broderbund ID byte
     jsr rw18 db 7BbundID db $11
     rts
    *------------------------------------------------- recal525** Recalibrate 5.25" floppy drive*
    recal525 jsr prep525
     lda #$A0 sta lastrack
    * Drive on
     jsr rw18 db 0,1,3 ;.3 second delay
    * Seek to track zero
     lda track pha
     jsr rw18 db 2,0,0
     pla sta track sta :track
    * Now seek first track
     jsr rw18 db 2,0:track db $11
     rts
    *------------------------------------------------- write35** Write up to 7 tracks to 3.5" disk.*
    write35 jsr prep35
    * Write until no more buffer, or ENDtrack is reached
     lda #>buffer
    :loop sta :writebuf
     jsr rw18 db $45 ;auto-inc, writesequ:writebuf db $11 bcs :error
     lda :writebuf jsr buffend? bcc :loop clc
    :error rts
    *------------------------------------------------- prep35** Prepare to use 3.5" RW18 routine*
    * 3.5" RW18 routine is in first bank of $D000
    prep35 bit $C083 bit $C083
    * Set slot of 3.5" drive
     lda #$11slot35 = *-1 asl asl asl asl sta slot tax
    * Set offset into 3.5" disk
     jsr rw18 db 8Boffset da $1111
     rts
    *------------------------------------------------- move** Move the RW18 routines to their respective homes.** $1000 - 3.5" rw18 routine* $2000 - 5.25" rw18 routine*
    move ldx #$83 lda #$10 jsr :0 ldx #$8B lda #$20
    :0 sta :source+2 lda #$D0 sta :dest+2
     lda $C000,x lda $C000,x
     sta $C009 ;aux $D000
     ldx #$10 ldy #0:source lda $1000,y:dest sta $D000,y iny bne :source
     inc :source+2 inc :dest+2
     dex bne :source
     sta $C008 bit $C081
     rts
    *------------------------------------------------- EOF

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