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helper macro func

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This commit is contained in:
Joshua Bell 2018-02-10 00:00:42 -08:00
parent 9fd1991945
commit 642bec3109
1 changed files with 18 additions and 16 deletions
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34
macros.inc
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@ -4,6 +4,7 @@
.define is_immediate(arg) (.match (.mid (0, 1, {arg}), #))
.define is_register(arg) (.match ({arg}, x) .or .match ({arg}, y))
.define immediate_value(arg) (.right (.tcount ({arg})-1, {arg}))
;;; ==================================================
;;; Pad with zeros to the given address
@ -65,6 +66,7 @@
jmp target
.endmacro
;;; ==================================================
;;; 16-bit pseudo-ops
@ -73,8 +75,8 @@
;;; ldax $1234 ; absolute
.macro ldax arg
.if is_immediate {arg}
lda #<(.right (.tcount ({arg})-1, {arg}))
ldx #>(.right (.tcount ({arg})-1, {arg}))
lda #<immediate_value {arg}
ldx #>immediate_value {arg}
.else
lda arg
ldx arg+1
@ -86,8 +88,8 @@
;;; ldxy $1234 ; absolute
.macro ldxy arg
.if is_immediate {arg}
ldx #<(.right (.tcount ({arg})-1, {arg}))
ldy #>(.right (.tcount ({arg})-1, {arg}))
ldx #<immediate_value {arg}
ldy #>immediate_value {arg}
.else
ldx arg
ldy arg+1
@ -138,10 +140,10 @@
.elseif is_immediate {arg2}
lda arg1
clc
adc #<(.right (.tcount ({arg2})-1, {arg2}))
adc #<immediate_value {arg2}
sta arg3
lda arg1+1
adc #>(.right (.tcount ({arg2})-1, {arg2}))
adc #>immediate_value {arg2}
sta arg3+1
.else
lda arg1
@ -193,20 +195,20 @@
sbc arg2+1
sta arg3+1,arg4
.elseif is_immediate {arg1}
lda #<(.right (.tcount ({arg1})-1, {arg1}))
lda #<immediate_value {arg1}
sec
sbc arg2
sta arg3
lda #>(.right (.tcount ({arg1})-1, {arg1}))
lda #>immediate_value {arg1}
sbc arg2+1
sta arg3+1
.elseif is_immediate {arg2}
lda arg1
sec
sbc #<(.right (.tcount ({arg2})-1, {arg2}))
sbc #<immediate_value {arg2}
sta arg3
lda arg1+1
sbc #>(.right (.tcount ({arg2})-1, {arg2}))
sbc #>immediate_value {arg2}
sta arg3+1
.else
lda arg1
@ -254,9 +256,9 @@
sta arg2+1,arg3
.elseif is_immediate {arg1}
;; immediate load variant (arg1 is #nnnn)
lda #<(.right (.tcount ({arg1})-1, {arg1}))
lda #<immediate_value {arg1}
sta arg2
lda #>(.right (.tcount ({arg1})-1, {arg1}))
lda #>immediate_value {arg1}
sta arg2+1
.else
lda arg1
@ -289,16 +291,16 @@
sbc arg2+1,arg3
.elseif is_immediate {arg1}
;; immediate variant (arg1 is #nnnn)
lda #<(.right (.tcount ({arg1})-1, {arg1}))
lda #<immediate_value {arg1}
cmp arg2
lda #>(.right (.tcount ({arg1})-1, {arg1}))
lda #>immediate_value {arg1}
sbc arg2+1
.elseif is_immediate {arg2}
;; immediate variant (arg2 is #nnnn)
lda arg1
cmp #<(.right (.tcount ({arg2})-1, {arg2}))
cmp #<immediate_value {arg2}
lda arg1+1
sbc #>(.right (.tcount ({arg2})-1, {arg2}))
sbc #>immediate_value {arg2}
.else
lda arg1
cmp arg2