Subversion Repositories pentevo

                ifndef  stddef16inc     ; avoid multiple inclusion
stddef16inc     equ     1

                save
                listing off             ; no listing over this file

;****************************************************************************
;*                                                                          *
;*   AS 1.42 - File STDDEF16.INC                                            *
;*                                                                          *
;*   Contains SFR and Macro Definitions for PIC 16C5x MCUs                  *
;*                                                                          *
;****************************************************************************

                if      (MOMCPU<93268)&&(MOMCPU>93271)
                 fatal  "wrong target selected: only 16C54..16C57 supported"
                endif

                if      MOMPASS=1
                 message "PIC16C5x Definitions (C) 1993 Alfred Arnold"
                endif

;----------------------------------------------------------------------------
; Special Registers

Indirect        SFR     0                ; Indirect Addressierung
PCLo            SFR     2               ; Program Counter LSB
RTCC            SFR     1               ; Counter
Status          SFR     3               ; Status Register
FSR             SFR     4               ; File Select Register
Port_A          SFR     5               ; Ports
Port_B          SFR     6
Port_C          SFR     7

;----------------------------------------------------------------------------
; Bits in Status Register

Flag_C          EQU     0                ; Carry
Flag_DC         EQU     1               ; Digit Carry
Flag_Z          EQU     2               ; Zero

PA1             EQU     5               ; Bank-Select Bit 9
PA2             EQU     6               ;  "     "     "  10

;----------------------------------------------------------------------------
; Set/Clear Flags

clrc            macro                   ; Clear Carry
                bcf     Status,Flag_C
                endm

setc            macro                   ; Set Carry
                bsf     Status,Flag_C
                endm

clrdc           macro                   ; Clear Digit Carry
                bcf     Status,Flag_DC
                endm

setdc           macro                   ; Set Digit Carry
                bsf     Status,Flag_DC
                endm

clrz            macro                   ; Clear Zero Flag
                bcf     Status,Flag_Z
                endm

setz            macro                   ; Set Zero Flag
                bsf     Status,Flag_Z
                endm

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Simplified Skip Instructions

skpc            macro                   ; Skip if C=1
                btfss   Status,Flag_C
                endm

skpnc           macro                   ; Skip if C=0
                btfsc   Status,Flag_C
                endm

skpdc           macro                   ; Skip if DC=1
                btfss   Status,Flag_DC
                endm

skpndc          macro                   ; Skip if DC=0
                btfsc   Status,Flag_DC
                endm

skpz            macro                   ; Skip if Z=1
                btfss   Status,Flag_Z
                endm

skpnz           macro                   ; Skip if Z=0
                btfsc   Status,Flag_Z
                endm

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Conditional Branches
; CAUTION: Multi-Word Instructions, can not be skipped!!!!

b               macro   target          ; Unconditional Branch
                goto    target
                endm

bc              macro   target          ; Branch if C=1
                btfsc   Status,Flag_C
                goto    target
                endm

bnc             macro   target          ; Branch if C=0
                btfss   Status,Flag_C
                goto    target
                endm

bdc             macro   target          ; Branch if DC=1
                btfsc   Status,Flag_DC
                goto    target
                endm

bndc            macro   target          ; Branch if DC=0
                btfss   Status,Flag_DC
                goto    target
                endm

bz              macro   target          ; Branch if Z=1
                btfss   Status,Flag_Z
                goto    target
                endm

bnz             macro   target          ; Branch if Z=0
                btfsc   Status,Flag_Z
                goto    target
                endm


;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Carry Arithmetic
; see above for CAUTION

addcf           macro   reg,dest        ; Add Carry to Register
                btfsc   Status,Flag_C
                incf    reg,dest
                endm

adddcf          macro   reg,dest        ; Add Digit Carry to Register
                btfsc   Status,Flag_DC
                incf    reg,dest
                endm

subcf           macro   reg,dest        ; Subtract Carry from Register
                btfsc   Status,Flag_C
                decf    reg,dest
                endm

subdcf          macro   reg,dest        ; Substract Digit Carry from Register
                btfsc   Status,Flag_DC
                decf    reg,dest
                endm

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Miscellaneous

movfw           macro   reg             ; Transfer Register-->W
                movf    reg,0
                endm

negf            macro   reg,dest        ; Two's Complement
                comf    reg,1
                incf    reg,dest
                endm

tstf            macro   reg             ; Set Flags according to Register Content
                movf    reg,1
                endm

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

                restore                 ; allow listing again

                endif                   ; stddef16inc