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Use these macros to program the SX with a '68HC11 like' instruction set

;*************************************************************************
;                                       F
;                            Ready-to-Use Modules in asm
;
;                           "68HC11 Like" Instruction Set
;
;                         (F) Copywrong 1997, f@POBoxes.com
;
; Filename	: HC11LIKE.MAC
; Programmer    : Frans Gunawan (92101710)
; Desription	: Some "68HC11 Like" Instruction Set
; History       :
; Version       Comment
; 1.0sx         Translated for use in the Ubicom SX processors
; 1.0           Support
; ---------------------
; July 22       adddIMM
; 1997                  beq
;                       bne
;               decEXT
;               incEXT
;                       incX
;                       incY
;               ldwIMM
;               ldwEXT
;               ldwINDX
;               ldwINDY
;                       lddIMM
;                       lddDIR
;                       lddEXT
;               ldxIMM
;               ldxDIR
;               ldxEXT
;                       ldyIMM
;                       ldyDIR
;                       ldyEXT
;               stwEXT
;               stwINDX
;               stwINDY
;                       stdDIR
;                       stdEXT
;                       stdINDX
;                       stdINDY
;               xgdx
;               xgdy
;---------------------------------
; 1.0b          abx
; July 23               ldabDIR
; 1997
;---------------------------------
; 1.0c          ldabIMM
; August 02     ldaaIMM
; 1997
;---------------------------------
; 1.0d          cpxIMM
; August 16     cpyIMM
; 1997          cpdIMM
;
; WARNING: these instructions are not 100% portable, i.e. status bit
;*************************************************************************

;*************************************************************************
;                                  macro
;*************************************************************************

movlf           MACRO   FILE, LITERAL
	mov	W, #LITERAL
	mov	FILE, W
                ENDM

longcall        MACRO   SUBROUTINE
                        MOVPF   WREG, TEMP_W
	mov	W, #HIGH    SUBROUTINE
                        MOVPF   WREG, PCLATH
	call	@LOW     SUBROUTINE
                ENDM

longgoto        MACRO   ADDRESS
	mov	W, #HIGH    ADDRESS
;*** WARNING: PCLATH register bits are in STATUS PAx bits. Or use PAGE/IREAD if possible
;                        MOVWF   PCLATH
	mov	PCLATH, W
	mov	W, #LOW     ADDRESS
	mov	PC, W
                ENDM

abx             MACRO
                        MOVFP   REGB, WREG
	add	(REGX+1), W
	mov	W, #$00
                        ADDWFC  REGX
                ENDM
;   A	jmp	
;   h   l
;------------+
;A+h+c  B+l
;
adddIMM         MACRO   WORD
	mov	W, #LOW WORD
	add	REGB, W
	mov	W, #HIGH WORD
                        ADDWFC  REGA
                ENDM

beq             MACRO   JUMP
	snb	ALUSTA.Z
	jmp	JUMP
                ENDM

bne             MACRO   JUMP
	sb	ALUSTA.Z
	jmp	JUMP
                ENDM

; cpx result is in Zero bit
; this instruction is followed by beq or bne
; ex:   ldxIMM  0x1234
;       cpxIMM  0x1234
;       beq     same
; no:
; same:
cpxIMM          MACRO   WORD
                LOCAL   cpx_exit
                LOCAL   same
                local   not_same

	mov	W, #LOW WORD
                        CPFSEQ  (REGX+1)
	jmp	not_same

	mov	W, #HIGH WORD
                        CPFSEQ  REGX
	jmp	not_same
same:	setb	ALUSTA.Z
	jmp	cpx_exit

not_same:	clrb	ALUSTA.Z
cpx_exit:                                       ;	jmp	cpx_exit

                ENDM

cpyIMM          MACRO   WORD
                LOCAL   cpy_exit
                LOCAL   same
                LOCAL   not_same

	mov	W, #LOW WORD
                        CPFSEQ  (REGY+1)
	jmp	not_same

	mov	W, #HIGH WORD
                        CPFSEQ  REGY
	jmp	not_same
same:	setb	ALUSTA.Z
	jmp	cpy_exit

not_same:	clrb	ALUSTA.Z
cpy_exit:                                       ;	jmp	cpy_exit
                ENDM

cpdIMM          MACRO   WORD
                LOCAL   cpd_exit
                LOCAL   same
                LOCAL   not_same

	mov	W, #LOW WORD
                        CPFSEQ  REGB
	jmp	not_same

	mov	W, #HIGH WORD
                        CPFSEQ  REGA
	jmp	not_same
same:	setb	ALUSTA.Z
	jmp	cpd_exit

not_same:	clrb	ALUSTA.Z
cpd_exit:                                       ;	jmp	cpd_exit
                ENDM

decEXT          MACRO   TARGET
                        ldwEXT  TARGET
	dec	WREG
                        stwEXT  TARGET
                ENDM

incEXT          MACRO   TARGET
                        ldwEXT  TARGET
	inc	WREG
                        stwEXT  TARGET
                ENDM

incX            MACRO
	mov	W, #$01
	add	(REGX+1), W
	mov	W, #$00
                        ADDWFC  REGX
                ENDM

incY            MACRO
	mov	W, #$01
	add	(REGY+1), W
	mov	W, #$00
                        ADDWFC  REGY
                ENDM

ldabDIR         MACRO   SOURCE
                        MOVFP   SOURCE, WREG
                        MOVPF   WREG, REGB
                ENDM

ldwIMM          MACRO   DATA
	mov	W, #DATA
                ENDM

ldwEXT          MACRO   SOURCE                          ; External RAM
	mov	W, #HIGH SOURCE
	mov	TBLPTRH, W
	mov	W, #LOW SOURCE
	mov	TBLPTRL, W

                        TABLRD	0,0,WREG                ;DUMMY
                        TLRD    0,WREG
                ENDM

ldwINDX         MACRO                                   ; (REGX) -> WREG
                        MOVFP   REGX, WREG
	mov	TBLPTRH, W
                        MOVFP   (REGX+1), WREG
	mov	TBLPTRL, W
                        TABLRD	0, 0, WREG              ; DUMMY
                        TLRD    0, WREG                 ; HIGH
                ENDM

ldwINDY         MACRO                                   ; (REGY) -> WREG
                        MOVFP   REGY, WREG
	mov	TBLPTRH, W
                        MOVFP   (REGY+1), WREG
	mov	TBLPTRL, W
                        TABLRD	0, 0, WREG              ; DUMMY
                        TLRD    0, WREG                 ; HIGH
                ENDM

ldabIMM         MACRO   DATA
	mov	W, #DATA
	mov	REGB, W
                ENDM

ldaaIMM         MACRO   DATA
	mov	W, #DATA
	mov	REGA, W
                ENDM

lddIMM          MACRO   WORD                            ; load Immediate
	mov	W, #HIGH WORD
	mov	REGA, W
	mov	W, #LOW WORD
	mov	REGB, W
                ENDM

lddDIR          MACRO   SOURCE
                        MOVFP   SOURCE, WREG
                        MOVPF   WREG, REGA
                        MOVFP   (SOURCE+1), WREG
                        MOVPF   WREG, REGB
                ENDM

lddEXT          MACRO   SOURCE
	mov	W, #HIGH SOURCE
	mov	TBLPTRH, W
	mov	W, #LOW SOURCE
	mov	TBLPTRL, W

                        TABLRD	0, 1, WREG              ; DUMMY
                        TLRD    0, REGA                 ; HIGH
                        TABLRD  0, 0, WREG              ; DUMMY
                        TLRD    0, REGB                 ; LOW
                ENDM

ldxIMM          MACRO   WORD                            ; load Immediate
	mov	W, #HIGH WORD
	mov	REGX, W
	mov	W, #LOW WORD
	mov	(REGX+1), W
                ENDM

ldxDIR          MACRO   SOURCE
                        MOVFP   SOURCE, WREG
                        MOVPF   WREG, REGX
                        MOVFP   (SOURCE+1), WREG
                        MOVPF   WREG, (REGX+1)
                ENDM

ldxEXT          MACRO   SOURCE
	mov	W, #HIGH SOURCE
	mov	TBLPTRH, W
	mov	W, #LOW SOURCE
	mov	TBLPTRL, W

                        TABLRD	0, 1, WREG              ; DUMMY
                        TLRD    0, REGX                 ; HIGH
                        TABLRD  0, 0, WREG              ; DUMMY
                        TLRD    0, (REGX+1)             ; LOW
                ENDM

ldyIMM          MACRO   WORD                            ; load Immediate
	mov	W, #HIGH WORD
	mov	REGY, W
	mov	W, #LOW WORD
	mov	(REGY+1), W
                ENDM

ldyDIR          MACRO   SOURCE
                        MOVFP   SOURCE, WREG
                        MOVPF   WREG, REGY
                        MOVFP   (SOURCE+1), WREG
                        MOVPF   WREG, (REGY+1)
                ENDM

ldyEXT          MACRO   SOURCE
	mov	W, #HIGH SOURCE
	mov	TBLPTRH, W
	mov	W, #LOW SOURCE
	mov	TBLPTRL, W

                        TABLRD	0, 1, WREG              ; DUMMY
                        TLRD    0, REGY                 ; HIGH
                        TABLRD  0, 0, WREG              ; DUMMY
                        TLRD    0, (REGY+1)             ; LOW
                ENDM

stwEXT          MACRO   DESTINATION                     ; External RAM
                        MOVPF   WREG, TEMP_W
	mov	W, #HIGH DESTINATION
	mov	TBLPTRH, W
	mov	W, #LOW DESTINATION
	mov	TBLPTRL, W

                        MOVFP   TEMP_W, WREG
                        TABLWT  0, 0, WREG
                ENDM

stwINDX         MACRO
                        MOVFP   REGX, TBLPTRH
                        MOVFP   (REGX+1), TBLPTRL
                        TABLWT  0, 0, WREG
                ENDM

stwINDY         MACRO
                        MOVFP   REGY, TBLPTRH
                        MOVFP   (REGY+1), TBLPTRL
                        TABLWT  0, 0, WREG
                ENDM

stdDIR          MACRO   DESTINATION
                        MOVFP   REGA, WREG
                        MOVPF   WREG, DESTINATION
                        MOVFP   REGB, WREG
                        MOVPF   WREG, (DESTINATION+1)
                ENDM

stdEXT          MACRO   DESTINATION                     ; External RAM
	mov	W, #HIGH DESTINATION
	mov	TBLPTRH, W
	mov	W, #LOW DESTINATION
	mov	TBLPTRL, W

                        TABLWT  0, 1, REGA
                        TABLWT  0, 0, REGB
                ENDM

stdINDX         MACRO
                        MOVFP   REGX, TBLPTRH
                        MOVFP   (REGX+1), TBLPTRL

                        TABLWT  0, 1, REGA
                        TABLWT  0, 0, REGB
                ENDM

stdINDY         MACRO
                        MOVFP   REGY, TBLPTRH
                        MOVFP   (REGY+1), TBLPTRL

                        TABLWT  0, 1, REGA
                        TABLWT  0, 0, REGB
                ENDM

xgdx            MACRO
                        MOVFP   REGA, WREG
                        MOVPF   WREG, TEMP_W

                        MOVFP   REGX, WREG
                        MOVPF   WREG, REGA
                        MOVFP   TEMP_W, WREG
                        MOVPF   WREG, REGX

                        MOVFP   REGB, WREG
                        MOVPF   WREG, TEMP_W

                        MOVFP   (REGX+1), WREG
                        MOVPF   WREG, REGB
                        MOVFP   TEMP_W, WREG
                        MOVPF   WREG, (REGX+1)
                ENDM

xgdy            MACRO
                        MOVFP   REGA, WREG
                        MOVPF   WREG, TEMP_W

                        MOVFP   REGY, WREG
                        MOVPF   WREG, REGA
                        MOVFP   TEMP_W, WREG
                        MOVPF   WREG, REGY

                        MOVFP   REGB, WREG
                        MOVPF   WREG, TEMP_W

                        MOVFP   (REGY+1), WREG
                        MOVPF   WREG, REGB
                        MOVFP   TEMP_W, WREG
                        MOVPF   WREG, (REGY+1)
                ENDM

; END OF FILE

See also:


file: /Techref/scenix/68HC11.htm, 11KB, , updated: 2001/12/10 15:00, local time: 2017/11/19 06:28, owner: JMN-EFP-786,
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