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fixed issues found by gregg

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This commit is contained in:
mrdudz
2015-07-15 13:18:12 +02:00
parent ac27ed301a
commit c3d45e4c47
8 changed files with 76 additions and 99 deletions
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21
asminc/pce.inc
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@@ -42,6 +42,9 @@ VDC_DESR =16 ; (DMA) Destination Register
VDC_LENR =17 ; (DMA) Length Register
VDC_SATB =18 ; Sprite Attribute Table
; VDC port
; Note: absolute addressing mode must be used when writing to this port
VDC_CTRL = $0000
VDC_DATA_LO = $0002
VDC_DATA_HI = $0003
@@ -79,24 +82,6 @@ IRQ_STATUS = $1403
CDR_MEM_DISABLE = $1803
CDR_MEM_ENABLE = $1807
;; lda abs
.macro ldaio arg1
.byte $ad
.word arg1
.endmacro
;; sta abs
.macro staio arg1
.byte $8d
.word arg1
.endmacro
;; stz abs
.macro stzio arg1
.byte $9c
.word arg1
.endmacro
; Write VDC register
.macro VREG arg1,arg2
st0 #arg1