64'er/64ER_CD.iso/utilamig/c64trans/c64serve.a65

Text File | 1989-03-02 | 7.6 KB | 682 lines

SETNAM    = $FFBD
SETLFS    = $FFBA
OPEN    = $FFC0
CLOSE    = $FFC3
CHKIN    = $FFC6
CHKOUT    = $FFC9
CLRCHN    = $FFCC
CHRIN    = $FFCF
CHROUT    = $FFD2
SCROUT    = $E716
;
STATUS    = $90
;
DISK    = 8
;
MAXLEN    = 1024
;
P.GETDIR    = 'D
P.ERROR        = 'E
P.GETFILE    = 'G
P.MORE        = 'M
P.OK        = 'O
P.PUTFILE    = 'P
P.QUIT        = 'Q
P.RETRY        = 'R
P.SCRATCH    = 'S
P.FILE        = '1
P.DIR        = '2
P.END        = '9
;
PKID    = $75
;
    *=$0801
    .WOR LINK
    .WOR 10
    .BYT $9E,'2061',0
LINK .WOR 0
    JSR SETINPUT
    LDA #0
    STA MODE
    JSR WRITESTR
    .BYT 'C64 FILE TRANSFER SERVER STARTED OK',13,0
MAINLOOP
    JSR GETPACKET
    LDA BUFF
    CMP #P.QUIT
    BNE NOQUIT
    LDA MODE
    BEQ QUITOK
    LDA #5
    JSR CLOSE
    JSR CLOSE15
QUITOK    LDA $DD01 ;FINAL HANDSHAKE
    RTS
;
NOQUIT    CMP #P.GETDIR
    BNE NO.DIR.REQ
    LDA MODE
    BEQ XD01
    LDA #5
    JSR CLOSE
    JSR CLOSE15
    LDA #0
    STA MODE
XD01
;DIRECTORY REQUEST
    JSR OPEN15
    LDX #<DNAME
    LDY #>DNAME
    LDA #2
    JSR SETNAM
    LDA #5
    LDY #0
    LDX #DISK
    JSR SETLFS
    JSR OPEN
    JSR DISKERR
    BEQ DIR.OPEN.OK
ERR001    JSR SENDERR
    LDA #5
    JSR CLOSE
    JSR CLOSE15
    LDA #0
    STA MODE
    JMP MAINLOOP
DIR.OPEN.OK
    LDA #P.DIR
    STA MODE
    LDA #0
    STA SEQ
    LDX #5
    JSR CHKIN
    JSR CHRIN ;SKIP LOAD ADDR
    JSR CHRIN
    JSR CLRCHN
    JSR SEND.DIR.LINE
    JMP MAINLOOP
;
NO.DIR.REQ
    CMP #P.GETFILE
    BNE NO.FILE.REQ
;GET FILE REQUEST
    LDA MODE
    BEQ XF01
    LDA #5
    JSR CLOSE
    JSR CLOSE15
    LDA #0
    STA MODE
XF01    JSR OPEN15
    LDX #<BUFFX1
    LDY #>BUFFX1
    LDA PKLEN
    SEC
    SBC #1
    JSR SETNAM
    LDX #DISK
    LDA #5
    TAY
    JSR SETLFS
    JSR OPEN
    JSR DISKERR
    BEQ XF02
    JMP ERR001
XF02    LDA #P.FILE
    STA MODE
    LDA #0
    STA SEQ
    STA EOF
    JSR SEND.FILE.BLOCK
    JMP MAINLOOP
;
NO.FILE.REQ
    CMP #P.PUTFILE
    BNE NO.PUTFILE
    LDA MODE
    BEQ PFX01
    LDA #5
    JSR CLOSE
    JSR CLOSE15
PFX01    LDA #0
    STA MODE
    JSR OPEN15
    LDX PKLEN
    LDA #',
    STA BUFF,X
    STA BUFF+2,X
    LDA #'P
    STA BUFF+1,X
    LDA #'W
    STA BUFF+3,X
    TXA
    LDX #<BUFFX1
    LDY #>BUFFX1
    CLC
    ADC #3
    JSR SETNAM
    LDX #DISK
    LDA #5
    TAY
    JSR SETLFS
    JSR OPEN
    JSR DISKERR
    BNE ERRJ2
    LDA #P.PUTFILE
    STA MODE
    LDA #0
    STA SEQ
    JSR SENDOK
    JMP MAINLOOP
ERRJ2    JMP ERR001
;
NO.PUTFILE CMP #P.MORE
    BNE NO.MORE.REQ
    LDA MODE
    CMP #P.DIR
    BNE NO.MORE.DIR
    JSR SEND.DIR.LINE
    JMP MAINLOOP
NO.MORE.DIR CMP #P.FILE
    BNE PKERRJ1
    LDA EOF
    BNE END.OF.DATA
    JSR SEND.FILE.BLOCK
    JMP MAINLOOP
PKERRJ1 JMP PKERR
;
END.OF.DATA JSR DISKERR
    BNE ERRJ2
    LDA #P.END
    STA BUFF
    LDX #1
    STX PKLEN
    DEX
    STX PKLEN+1
    JSR SENDPACKET
    JMP QUITCMD
;
DATA.PACKET.JUMP JMP DATA.PACKET
;
NO.MORE.REQ
    CMP #P.FILE
    BEQ DATA.PACKET.JUMP
    CMP #P.SCRATCH
    BEQ SCRATCH
    CMP #P.END
    BNE PKERRJ1
    JSR SENDOK
QUITCMD LDA #5
    JSR CLOSE
    JSR CLOSE15
    LDA #0
    STA MODE
    JMP MAINLOOP
;
SCRATCH LDA MODE
    BEQ SCRX1
    LDA #5
    JSR CLOSE
    JSR CLOSE15
SCRX1    JSR OPEN15
    LDX #15
    JSR CHKOUT
    LDA #'S
    JSR CHROUT
    LDA #'0
    JSR CHROUT
    LDA #':
    JSR CHROUT
    LDX #1
SXX    LDA BUFF,X
    JSR CHROUT
    INX
    CPX PKLEN
    BCC SXX
    JSR CLRCHN
    JSR DISKERR
    PHA
    JSR CLOSE15
    PLA
    BEQ OK.RES
    JSR SENDERR
    JMP MAINLOOP
OK.RES    LDA #P.OK
    STA BUFF
    LDA #'K
    STA BUFF+1
    LDA #32
    STA BUFF+2
    LDX #0
OKX1    LDA ERRBUF,X
    STA BUFF+3,X
    INX
    CMP #13
    BNE OKX1
    TXA
    CLC
    ADC #2
    STA PKLEN
    LDA #0
    STA PKLEN+1
    JSR SENDPACKET
    JMP MAINLOOP
;
PKERRJ2 JMP PKERR
;
DATA.PACKET
    LDA MODE
    CMP #P.PUTFILE
    BNE PKERRJ2
    LDA BUFF+1
    CMP SEQ
    BNE SEQ.ERR
    INC SEQ
    LDA #<BUFFX2
    STA $FB
    LDA #>BUFFX2
    STA $FC
    LDA PKLEN
    CLC
    ADC #<BUFF
    STA $FD
    LDA PKLEN+1
    ADC #>BUFF
    STA $FE
    LDX #5
    JSR CHKOUT
    LDY #0
WRITELOOP
    LDA ($FB),Y
    JSR CHROUT
    INC $FB
    BNE WRX01
    INC $FC
WRX01    LDA $FB
    CMP $FD
    LDA $FC
    SBC $FE
    BCC WRITELOOP
    JSR DISKERR
    BNE ERRJ3
    JSR SENDOK
    JMP MAINLOOP
ERRJ3    JMP ERR001
;
SEQ.ERR LDA #P.ERROR
    STA BUFF
    LDA #5
    JSR CLOSE
    JSR CLOSE15
    LDA #0
    STA MODE
    LDX #0
SEQER1    LDA SEQERRTXT,X
    STA BUFF+1,X
    INX
    TAY
    BNE SEQER1
    STX PKLEN
    STA PKLEN+1
    JSR SENDPACKET
    JMP MAINLOOP
    JSR CHKOUT
;
SEQERRTXT .BYT 'SEQUENCE ERROR',0
;
PKERR    LDA #5
    JSR CLOSE
    JSR CLOSE15
    LDA #0
    STA MODE
    LDA #P.ERROR
    STA BUFF
    LDX #0
PX01    LDA ERRMSG,X
    STA BUFF+1,X
    INX
    TAY
    BNE PX01
    STX PKLEN
    STA PKLEN+1 ;ZERO
    JSR SENDPACKET
    JMP MAINLOOP
;
ERRMSG .BYT 'UNKNOWN COMMAND',0
;
SEND.DIR.LINE
    LDX #5
    JSR CHKIN
    LDA #0
    STA STATUS
    JSR CHRIN ;SKIP DUMMY LINK ADDR
    JSR CHRIN
    LDA STATUS
    BEQ DIR.OK
    JSR CLRCHN
    PLA
    PLA
    JMP END.OF.DATA
DIR.OK    LDA #P.DIR
    STA BUFF
    LDA SEQ
    STA BUFF+1
    INC SEQ
    JSR CHRIN
    TAX
    JSR CHRIN
    JSR CONVNUM ;CONVERT 16-BIT NUMBER TO ASCII STRING TO ADDR $0100
    LDX #0
TXN1    LDA $0100,X
    STA BUFF+2,X
    INX
    TAY
    BNE TXN1
    LDA #32
    STA BUFF+1,X
TDX1    JSR CHRIN
    STA BUFF+2,X
    INX
    CPX #80
    BCS TDX2
    TAY
    BNE TDX1
TDX2    DEX
    STX PKLEN
    LDA #0
    STA PKLEN+1
    JSR CLRCHN
    JSR DISKERR
    BNE SP.ERR.J1
    JMP SENDPACKET
SP.ERR.J1
    JMP SPACK.ERR
;
SEND.FILE.BLOCK
    LDX #5
    JSR CHKIN
    LDA #0
    STA STATUS
    LDA #P.FILE
    STA BUFF
    LDA SEQ
    STA BUFF+1
    INC SEQ
    LDA #<BUFFX2
    STA $FB
    LDA #>BUFFX2
    STA $FC
    LDY #0
SEND.FILE.LOOP
    JSR CHRIN
    STA ($FB),Y
    INC $FB
    BNE XZ01
    INC $FC
XZ01    LDA STATUS
    BNE XEOF1
    LDA $FB
    CMP #<BUFF.END
    LDA $FC
    SBC #>BUFF.END
    BCC SEND.FILE.LOOP
SFBL1    JSR CLRCHN
    LDA $FB
    SEC
    SBC #<BUFF
    STA PKLEN
    LDA $FC
    SBC #>BUFF
    STA PKLEN+1
    JSR DISKERR
    BNE SPACK.ERR
    JMP SENDPACKET
XEOF1    LDA #1
    STA EOF
    JMP SFBL1
SPACK.ERR PLA
    PLA
    JMP ERR001
;
GETPACKET
    JSR SETINPUT
PHDR    JSR RECEIVE
    CMP #PKID
    BNE PHDR
    JSR RECEIVE
    STA PKLEN+1
    JSR RECEIVE
    STA PKLEN
    LDA #<MAXLEN
    CMP PKLEN
    LDA #>MAXLEN
    SBC PKLEN+1
    BCC TOOLONG
    LDA #<BUFF
    STA $FB
    CLC
    ADC PKLEN
    STA $FD
    LDA #>BUFF
    STA $FC
    ADC PKLEN+1
    STA $FE
    LDY #0
    STY CKSUM
    STY CKSUM+1
    LDA PKLEN
    ORA PKLEN+1
    BEQ RECCK
GETPACKLOOP JSR RECEIVE
    STA ($FB),Y
    CLC
    ADC CKSUM
    STA CKSUM
    LDA #0
    ADC CKSUM+1
    STA CKSUM+1
    INC $FB
    BNE X01
    INC $FC
X01    LDA $FB
    CMP $FD
    LDA $FC
    SBC $FE
    BCC GETPACKLOOP
RECCK    JSR RECEIVE ;CHECKSUM HIGH
    TAY
    JSR RECEIVE ;CHECKSUM LOW
    CMP CKSUM
    BNE CKERR
    CPY CKSUM+1
    BNE CKERR
    CLC
    RTS
CKERR    JSR WRITESTR
    .BYT 'CHECKSUM ERROR',13,0
    SEC
    RTS
TOOLONG JSR WRITESTR
    .BYT 'PACKET TOO LONG',13,0
    SEC
    RTS
;
SENDPACKET
    JSR SETOUTPUT
    LDA #<BUFF
    STA $FB
    CLC
    ADC PKLEN
    STA $FD
    LDA #>BUFF
    STA $FC
    ADC PKLEN+1
    STA $FE
    LDY #0
    STY CKSUM
    STY CKSUM+1
    LDX #10
    LDA #0
NULLX    JSR SEND
    DEX
    BNE NULLX
    LDA #PKID
    JSR SEND
    LDA PKLEN+1
    JSR SEND
    LDA PKLEN
    JSR SEND
    LDA PKLEN
    ORA PKLEN+1
    BEQ SENDCK
SLOOP    LDA ($FB),Y
    PHA
    JSR SEND
    PLA
    CLC
    ADC CKSUM
    STA CKSUM
    LDA #0
    ADC CKSUM+1
    STA CKSUM+1
    INC $FB
    BNE X02
    INC $FC
X02    LDA $FB
    CMP $FD
    LDA $FC
    SBC $FE
    BCC SLOOP
SENDCK    LDA CKSUM+1
    JSR SEND
    LDA CKSUM
    JSR SEND
    JMP SETINPUT
;
SETINPUT LDA #$00
    STA $DD03 ;USER PORT TO INPUT
    LDA $DD01
    LDA $DD02
    ORA #4
    STA $DD02
    RTS
;
RECEIVE LDA #$10
REC1    BIT $DD0D
    BEQ REC1
    LDA $DD01
    RTS
;
SETOUTPUT LDA #$FF
    STA $DD03 ;USER PORT TO OUTPUT
    LDA $DD02
    ORA #4
    STA $DD02
    LDA $DD00
    ORA #4
    STA $DD00
    RTS
;
SEND    STA $DD01
    LDA #$10
SEND1 BIT $DD0D
    BEQ SEND1
    RTS
;
WRITESTR PLA
    STA $22
    PLA
    STA $23
WRS1    INC $22
    BNE WRS2
    INC $23
WRS2    LDY #0
    LDA ($22),Y
    BEQ WRS3
    JSR CHROUT
    JMP WRS1
WRS3    LDA $23
    PHA
    LDA $22
    PHA
    RTS
;
OPEN15    LDA #0
    JSR SETNAM
    LDA #15
    TAY
    LDX #DISK
    JSR SETLFS
    JMP OPEN
;
CLOSE15 LDA #15
    JMP CLOSE
;
DISKERR LDX #15
    JSR CHKIN
    LDX #0
DER1    JSR CHRIN
    STA ERRBUF,X
    INX
    CMP #13
    BNE DER1
    JSR CLRCHN
    LDA ERRBUF
    EOR #'0
    RTS
;
SENDERR LDA #P.ERROR
    STA BUFF
    LDX #0
SX01    LDA ERRBUF,X
    STA BUFF+1,X
    INX
    CMP #13
    BNE SX01
    STX PKLEN
    LDA #0
    STA PKLEN+1
    JSR SENDPACKET
    JSR WRITESTR
    .BYT 'DISK ERROR: ',0
    LDX #1
SXE01    LDA BUFF,X
    JSR CHROUT
    INX
    CPX PKLEN
    BCC SXE01
    LDA #13
    JMP CHROUT
;
SENDOK    LDA #P.OK
    STA BUFF
    LDA #'K
    STA BUFF+1
    LDA #2
    STA PKLEN
    LDA #0
    STA PKLEN+1
    JMP SENDPACKET
;
CONVNUM STA $62
    STX $63
    LDX #$90
    SEC
    JSR $BC49
    JMP $BDDF
;
DNAME    .BYT '$0'
;
PKLEN    .WOR 0
CKSUM    .WOR 0
MODE    .BYT 0
SEQ    .BYT 0
EOF    .BYT 0
;
ERRBUF    *=*+80
;
BUFF    = $5000
BUFFX1    = BUFF+1
BUFFX2    = BUFF+2
BUFF.END= BUFF+MAXLEN