bankswitch.inc

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; Author        Date        Comment
; ************************************************************************
; E. Schlunder  06/09/2009  Starting to move all bank switching code to
;                           macros in this include file. This will 
;                           allow us to support the enhanced PIC16F core
;                           devices, which use a "movlb" instruction
;                           instead of STATUS<RP0/RP1> bits.

#ifdef BSR
    ; Enhanced PIC16F core, use movlb instruction instead of diddling STATUS<RP0/RP1>
BXtoB0  macro
    movlb   .0                      ; Bx -> B0
        endm

B0toB1  macro
    movlb   .1                      ; Bx -> B1
        endm

B0toB2  macro
    movlb   .2                      ; Bx -> B2
        endm

B1toB0  macro
    movlb   .0                      ; Bx -> B0
        endm

B1toB3  macro
    movlb   .3                      ; Bx -> B3
        endm

B2toB3  macro
    movlb   .3                      ; Bx -> B3
        endm

B3toB2  macro
    movlb   .2                      ; Bx -> B2
        endm

B2toB0  macro
    movlb   .0                      ; Bx -> B0
        endm

lfsr    macro   GPRADDR
    movlw   low(GPRADDR)
    movwf   FSR0L
    movlw   high(GPRADDR)
    movwf   FSR0H
        endm

    #ifndef INDF
        #ifdef INDF0
            #define INDF INDF0
        #endif
    #endif

    #ifndef FSR
        #define FSR FSR0L
    #endif

    #ifndef BAUDCTL
        #define BAUDCTL BAUDCON
    #endif
#else  
    ; Original PIC16F core, no movlb instruction

BXtoB0  macro
    clrf    STATUS                  ; Bx -> B0
        endm

B0toB1  macro
    bsf     STATUS, RP0             ; B0 -> B1
        endm

B0toB2  macro
    bsf     STATUS, RP1             ; B0 -> B2
        endm

B2toB0  macro
    bcf     STATUS, RP1             ; B2 -> B0
        endm

B1toB0  macro
    bcf     STATUS, RP0             ; B1 -> B0
        endm

B1toB3  macro
    bsf     STATUS, RP1             ; B1 -> B3
        endm

B2toB3  macro
    bsf     STATUS, RP0             ; B2 -> B3
        endm

B3toB2  macro
    bcf     STATUS, RP0             ; B3 to B2
        endm

lfsr    macro   GPRADDR
    movlw   GPRADDR
    movwf   FSR
        endm
#endif

#ifndef EEDATA
    #ifdef EEDATL
        #define EEDATA EEDATL
    #else
        #define EEDATA EEDAT
    #endif
#endif