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|
; Implements special instruction mnemonics
; Copyright (C) 1998 James Bowman
;
; This file is part of gpasm.
;
; gpasm is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2, or (at your option)
; any later version.
;
; gpasm is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with gpasm; see the file COPYING. If not, write to
; the Free Software Foundation, 59 Temple Place - Suite 330,
; Boston, MA 02111-1307, USA.
; Add carry to file
addcf macro f,d
btfsc 3,0
incf f,d
endm
; Add digit carry to file
adddcf macro f,d
btfsc 3,1
incf f,d
endm
; Branch
b macro k
goto k
endm
; Branch on carry
bc macro k
btfsc 3,0
goto k
endm
; Branch on digit carry
bdc macro k
btfsc 3,1
goto k
endm
; Branch on zero
bz macro k
btfsc 3,2
goto k
endm
; Branch on no carry
bnc macro k
btfss 3,0
goto k
endm
; Branch on no digit carry
bndc macro k
btfss 3,1
goto k
endm
; Branch on no zero
bnz macro k
btfss 3,2
goto k
endm
; Clear carry
clrc macro
bcf 3,0
endm
; Clear digit carry
clrdc macro
bcf 3,1
endm
; Clear z
clrz macro
bcf 3,2
endm
; Set carry
setc macro
bsf 3,0
endm
; Set digit carry
setdc macro
bsf 3,1
endm
; Set z
setz macro
bsf 3,2
endm
lcall macro k
call k
endm
lgoto macro k
goto k
endm
; Move file to w
movfw macro f
movf f,0
endm
; Negate
negf macro f,d
comf f,1
incf f,d
endm
; Skip on carry
skpc macro
btfss 3,0
endm
; Skip on digit carry
skpdc macro
btfss 3,1
endm
; Skip on zero
skpz macro
btfss 3,2
endm
; Skip on no carry
skpnc macro
btfsc 3,0
endm
; Skip on no digit carry
skpndc macro
btfsc 3,1
endm
; Skip on no zero
skpnz macro
btfsc 3,2
endm
; Subtract carry from file
subcf macro f,d
btfsc 3,0
decf f,d
endm
; Subtract digit carry from file
subdcf macro f,d
btfsc 3,1
decf f,d
endm
; Test file
tstf macro f
movf f,1
endm
|
