What is it meant to do?

-----Original Message-----
From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU] On
Behalf Of Rafael Vidal Aroca
Sent: Tuesday, 25 May 2004 1:12 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: [PIC:] Conversion ASM -> CCS C


    Hello guys,
    i'm having trouble converting this asm code that runs on a pic 16F877 to
CCS C. I tried to convert it, but it did not work :(

    I'd be really thankful if anyone could translate this code into C so
that i can compare with what i did.

        movlw   ISA_HBASEIO
        movwf   ISA_HADR

        movf    ISA_OFFSET, W
        addlw   ISA_LBASEIO
        movwf   ISA_LADR

        ; parse address

        movf    ISA_LADR, W
        andlw   0x3F
        movwf   PORTC

        rrf     ISA_LADR, F
        rrf     ISA_LADR, W
        andlw   0x30
        movwf   ISA_LADR

        swapf   ISA_HADR, F
        rlf     ISA_HADR, F
        rlf     ISA_HADR, W
        andlw   0xC0
        movwf   ISA_HADR

        movlw   0x0F
        addwf   ISA_LADR, W
        addwf   ISA_HADR, W
        movwf   PORTB


    again, thanks a lot for the attention.

Rafael.

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