X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=tools%2Ftest-image%2Fsample1.asm;h=e9cfa4804698786fef4ce024b5ddd6b7df51f1d8;hb=2502fb908466ed8e860683d7f24ab6aa0cfd71eb;hp=7919c3ba1c090c6384f11264d6669b7209d78ced;hpb=e0e783b185589996f2e7459858a49d4317c848c8;p=motonesfpga%2Fmotonesfpga.git

diff --git a/tools/test-image/sample1.asm b/tools/test-image/sample1.asm
index 7919c3b..e9cfa48 100644
--- a/tools/test-image/sample1.asm
+++ b/tools/test-image/sample1.asm
@@ -27,10 +27,47 @@
 	sta	$2006
 	lda	#$00
 	sta	$2006
-	ldx	#$00
-	ldy	#$10
+
+    ;;dma test data.
+    ldy #$00
+    ldx #$41
+    stx $00
+    ldx #$00
+dma_set:
+    ;;y pos
+    txa
+    sta $0200, y
+    iny
+    ;;tile index
+    lda $00
+    cmp #$5b
+    bne inc_tile
+    lda #$41
+    sta $00
+inc_tile:
+    inc $00
+    sta $0200, y
+    iny
+    ;;attribute
+    lda #$01
+    sta $0200, y
+    iny
+    ;;x pos
+    txa
+    adc #$03
+    tax
+    rol
+    sta $0200, y
+    iny
+    bne dma_set
+
+    ;;dma start.
+    lda #$02
+    sta $4014
 
     ;;load palette.
+	ldx	#$00
+	ldy	#$20
 copypal:
 	lda	palettes, x
 	sta	$2007
@@ -38,9 +75,9 @@ copypal:
 	dey
 	bne	copypal
 
-	lda	#$21
+	lda	#$20
 	sta	$2006
-	lda	#$c9
+	lda	#$ab
 	sta	$2006
 	ldx	#$00
 	ldy	#$0d
@@ -53,468 +90,739 @@ copymap:
 	dey
 	bne	copymap
 
+    ;;;vertical show test.
+	lda	#$04
+	sta	$2000
+
+	lda	#$20
+	sta	$2006
+	lda	#$cb
+	sta	$2006
+	ldx	#$00
+	ldy	#$0d
+
+    ;;load name table.
+copymap2:
+	lda	string, x
+	sta	$2007
+	inx
+	dey
+	bne	copymap2
+
+    ;;scroll reg set.
 	lda	#$00
 	sta	$2005
 	sta	$2005
 
     ;;show test msg.
-	lda	#$08
-	sta	$2000
 	lda	#$1e
 	sta	$2001
 
-    jmp boundary_1
-    ;;fill dummy data to test page boundary instruction.
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-    ;;;single byte instruction page boundary test.
-boundary_1:
-    lda #$01
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-    ror
-;;this is pch increment at T1 cycle. 
-;;;@80ff
-    rol
-    lsr
-
-    jmp boundary_2_1
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_2_1:
-    ;;;two byte instruction page boundary test.
-	lda	#$01
-	lda	#$01
-	lda	#$01
-	lda	#$01
-	lda	#$01
-	lda	#$01
-;;this is pch increment at T1 cycle. 
-    ;;;@81ff
-	ldx	#$08
-
-
-    jmp boundary_2_2
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_2_2:
-    ;;;two byte instruction page boundary test.
-	lda	#$01
-	lda	#$01
-	lda	#$01
-	lda	#$01
-	lda	#$01
-    ror
-;;this is pch increment at next T0 cycle. 
-    ;;;@82fe
-	ldx	#$0a
-
-    jmp boundary_2_3
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_2_3:
-    ;;;two byte instruction w/ 3 exec cycle page boundary test.
-	lda	#$01
-	lda	#$01
-	lda	#$01
-
-	ror
-	lda	#$01
-	lda	#$de
-	sta	$13
-
-
-;;this is pch increment at T1 cycle. 
-    ;;;@83ff
-	ldy $09, x
-
-
-    jmp boundary_2_4
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_2_4:
-    ;;;two byte instruction w/ 3 exec cycle page boundary test.
-	lda	#$01
-	lda	#$01
-	ldy	#$05
-
-	ror
-	lda	#$01
-	lda	#$de
-;;this is pch increment at T2 cycle. 
-    ;;;@84fe
-	sta	$13
-
-
-    jmp boundary_3_1
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_3_1:
-    ;;;three byte instruction w/ page boundary test.
-	lda	#$01
-	lda	#$01
-	ldy	#$05
-
-	ror
-	lda	#$01
-	lda	#$dd
-;;this is pch increment at T3 cycle. 
-    ;;;@85fd
-	sta	$06fc, x
-
-    jmp boundary_3_2
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_3_2:
-    ;;;three byte instruction w/ page boundary test.
-	lda	#$01
-	lda	#$01
-	lda	#$01
-	ldy	#$05
-
-	lda	#$01
-	lda	#$dd
-;;this is pch increment at T2 cycle. 
-    ;;;@86fe
-	sta	$06fc, x
-
-    jmp boundary_3_3
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_3_3:
-    ;;;three byte instruction w/ page boundary test.
-	lda	#$01
-	lda	#$01
-	lda	#$01
-	ldy	#$05
-
-	ldy	#$08
-	lda	#$dd
-;;this is pch increment at T1 cycle. 
-    ;;;@87ff
-	sta	$06fc, x
-
-    jmp boundary_3_4
-
-    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
-
-boundary_3_4:
-    ;;;three byte instruction w/ page boundary test.
-	lda	#$01
-	lda	#$01
-    ror
-
-	ldy	#$08
-	lda	#$dd
-;;this is pch increment at T0 cycle. 
-    ;;;@88fd
-	sta	$06fc, x
-
-    nop
-    nop
-    nop
-
-    ;;;instruction coverage test....
-    ;;adc abs, y
-    ldy #$10
-    ldx #$fa
-    stx $0790
-    lda #$b0
-    ;;fa+b0=aa
-    adc $0780, y
-
-    clc
-    ldy #$ab
-    ldx #$fa
-    stx $082b
-    lda #$dd
-    ;;fa+dd=d7
-    adc $0780, y
-
-    ;;bit zp
-    ldx #$15
-    stx $2b
-    bit $2b
-    lda #$8a
-    bit $2b
-
-    ;;sbc imm
-    ;;8a-5c=2e
-    sbc #$5c
-    ;;2e-3d=f1
-    sbc #$3d
-    ;;f1-e5=0c
-    sbc #$e5
-
-    ;;cli/clv
-    cli
-    ldx #$c0
-    stx $2b
-    bit $2b
-    clv
-
-    ;;adc zp, x/abs, x/indir, y
-    lda #$11
-    ldx #$e4
-    sta $a4
-    ;11+81=92
-    lda #$81
-    adc $c0, x
-
-    stx $0734
-    ;93+e4=177
-    adc $0650, x
-
-    ldx #$c9
-    stx $07e8
-    lda #$34
-    sta $07
-    lda #$07
-    sta $08
-    ldy #$b4
-    ;c9+07=d0
-    adc ($07), y
-
-    ;;and zp, x/abs/abs, x/indir, y
-    lda #$f5
-    ldx #$e4
-    sta $a4
-    ;f5&5e=54
-    lda #$5e
-    and $c0, x
-
-    stx $0734
-    ;e4&54=44
-    and $0650, x
-
-    ldx #$c9
-    stx $07e8
-    lda #$34
-    sta $07
-    lda #$07
-    sta $08
-    ldy #$b4
-    ;no page crossing
-    ;c9&07=01
-    and ($07), y
-
-    ldx #$c9
-    stx $0825
-    lda #$34
-    sta $07
-    lda #$07
-    sta $08
-    ldy #$f1
-    ;page crossing
-    ;c9&07=01
-    and ($07), y
-
-    ;;cmp zp, x/abs/abs, x/indir, y
-    lda #$de
-    ldx #$e4
-    sta $a4
-    ;c5-de=-19 > (e7)
-    lda #$c5
-    cmp $c0, x
-
-    sec
-    lda #$75
-    stx $0734
-    ;75-e4=-6f > 91
-    cmp $0650, x
-
-    ldx #$c9
-    stx $0825
-    lda #$34
-    sta $07
-    lda #$07
-    sta $08
-    ldy #$f1
-    lda #$c9
-    ;page crossing
-    ;c9-c9=0
-    cmp ($07), y
-
-    ;;rol zp/zp, x/abs/abs, x
-    lda #$de
-    ldx #$e4
-    sta $a4
-    ;de<1 =bc w/ carry
-    clc
-    rol $c0, x
-    ;bc<1 =78  w/ carry
-    rol $a4
-
-    ldx #$64
-    stx $0722
-    ;64<1 = c8 w/o carry
-    rol $06be, x
-
-    ldx #$80
-    stx $0734
-    ;80<1 = 00 w/ carry.
-    rol $0734
-
-    ;;cpx abs
-    ;;cpy zp/abs
-    lda #$de
-    sta $03a4
-    ;c5-de=-19 > (e7)
-    ldx #$c5
-    cpx $03a4
-
-    sec
-    ldy #$75
-    ldx #$e4
-    stx $34
-    ;75-e4=-6f > 91
-    cpy $34
-
-    ldx #$c9
-    stx $0825
-    ldy #$c9
-    ;c9-c9=0
-    cpy $0825
+;;    jmp boundary_1
+;;    ;;fill dummy data to test page boundary instruction.
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;    ;;;single byte instruction page boundary test.
+;;boundary_1:
+;;    lda #$01
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;    ror
+;;;;this is pch increment at T1 cycle. 
+;;;;;@80ff
+;;    rol
+;;    lsr
+;;
+;;    jmp boundary_2_1
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_2_1:
+;;    ;;;two byte instruction page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;;;this is pch increment at T1 cycle. 
+;;    ;;;@81ff
+;;	ldx	#$08
+;;
+;;
+;;    jmp boundary_2_2
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_2_2:
+;;    ;;;two byte instruction page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;    ror
+;;;;this is pch increment at next T0 cycle. 
+;;    ;;;@82fe
+;;	ldx	#$0a
+;;
+;;    jmp boundary_2_3
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_2_3:
+;;    ;;;two byte instruction w/ 3 exec cycle page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;
+;;	ror
+;;	lda	#$01
+;;	lda	#$de
+;;	sta	$13
+;;
+;;
+;;;;this is pch increment at T1 cycle. 
+;;    ;;;@83ff
+;;	ldy $09, x
+;;
+;;
+;;    jmp boundary_2_4
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_2_4:
+;;    ;;;two byte instruction w/ 3 exec cycle page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;	ldy	#$05
+;;
+;;	ror
+;;	lda	#$01
+;;	lda	#$de
+;;;;this is pch increment at T2 cycle. 
+;;    ;;;@84fe
+;;	sta	$13
+;;
+;;
+;;    jmp boundary_3_1
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_3_1:
+;;    ;;;three byte instruction w/ page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;	ldy	#$05
+;;
+;;	ror
+;;	lda	#$01
+;;	lda	#$dd
+;;;;this is pch increment at T3 cycle. 
+;;    ;;;@85fd
+;;	sta	$06fc, x
+;;
+;;    jmp boundary_3_2
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_3_2:
+;;    ;;;three byte instruction w/ page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;	ldy	#$05
+;;
+;;	lda	#$01
+;;	lda	#$dd
+;;;;this is pch increment at T2 cycle. 
+;;    ;;;@86fe
+;;	sta	$06fc, x
+;;
+;;    jmp boundary_3_3
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_3_3:
+;;    ;;;three byte instruction w/ page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;	lda	#$01
+;;	ldy	#$05
+;;
+;;	ldy	#$08
+;;	lda	#$dd
+;;;;this is pch increment at T1 cycle. 
+;;    ;;;@87ff
+;;	sta	$06fc, x
+;;
+;;    jmp boundary_3_4
+;;
+;;    .byte      $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;boundary_3_4:
+;;    ;;;three byte instruction w/ page boundary test.
+;;	lda	#$01
+;;	lda	#$01
+;;    ror
+;;
+;;	ldy	#$08
+;;	lda	#$dd
+;;;;this is pch increment at T0 cycle. 
+;;    ;;;@88fd
+;;	sta	$06fc, x
+;;
+;;    nop
+;;    nop
+;;    nop
+;;
+;;    ;;;instruction coverage test....
+;;    ;;adc abs, y
+;;    ldy #$10
+;;    ldx #$fa
+;;    stx $0790
+;;    lda #$b0
+;;    ;;fa+b0=aa
+;;    adc $0780, y
+;;
+;;    clc
+;;    ldy #$ab
+;;    ldx #$fa
+;;    stx $082b
+;;    lda #$dd
+;;    ;;fa+dd=d7
+;;    adc $0780, y
+;;
+;;    ;;bit zp
+;;    ldx #$15
+;;    stx $2b
+;;    bit $2b
+;;    lda #$8a
+;;    bit $2b
+;;
+;;    ;;sbc imm
+;;    ;;8a-5c=2e
+;;    sbc #$5c
+;;    ;;2e-3d=f1
+;;    sbc #$3d
+;;    ;;f1-e5=0c
+;;    sbc #$e5
+;;
+;;    ;;cli/clv
+;;    cli
+;;    ldx #$c0
+;;    stx $2b
+;;    bit $2b
+;;    clv
+;;
+;;    ;;adc zp, x/abs, x/indir, y
+;;    lda #$11
+;;    ldx #$e4
+;;    sta $a4
+;;    ;11+81=92
+;;    lda #$81
+;;    adc $c0, x
+;;
+;;    stx $0734
+;;    ;93+e4=177
+;;    adc $0650, x
+;;
+;;    ldx #$c9
+;;    stx $07e8
+;;    lda #$34
+;;    sta $07
+;;    lda #$07
+;;    sta $08
+;;    ldy #$b4
+;;    ;c9+07=d0
+;;    adc ($07), y
+;;
+;;    ;;and zp, x/abs/abs, x/indir, y
+;;    lda #$f5
+;;    ldx #$e4
+;;    sta $a4
+;;    ;f5&5e=54
+;;    lda #$5e
+;;    and $c0, x
+;;
+;;    stx $0734
+;;    ;e4&54=44
+;;    and $0650, x
+;;
+;;    ldx #$c9
+;;    stx $07e8
+;;    lda #$34
+;;    sta $07
+;;    lda #$07
+;;    sta $08
+;;    ldy #$b4
+;;    ;no page crossing
+;;    ;c9&07=01
+;;    and ($07), y
+;;
+;;    ldx #$c9
+;;    stx $0825
+;;    lda #$34
+;;    sta $07
+;;    lda #$07
+;;    sta $08
+;;    ldy #$f1
+;;    ;page crossing
+;;    ;c9&07=01
+;;    and ($07), y
+;;
+;;    ;;cmp zp, x/abs/abs, x/indir, y
+;;    lda #$de
+;;    ldx #$e4
+;;    sta $a4
+;;    ;c5-de=-19 > (e7)
+;;    lda #$c5
+;;    cmp $c0, x
+;;
+;;    sec
+;;    lda #$75
+;;    stx $0734
+;;    ;75-e4=-6f > 91
+;;    cmp $0650, x
+;;
+;;    ldx #$c9
+;;    stx $0825
+;;    lda #$34
+;;    sta $07
+;;    lda #$07
+;;    sta $08
+;;    ldy #$f1
+;;    lda #$c9
+;;    ;page crossing
+;;    ;c9-c9=0
+;;    cmp ($07), y
+;;
+;;    ;;rol zp/zp, x/abs/abs, x
+;;    lda #$de
+;;    ldx #$e4
+;;    sta $a4
+;;    ;de<1 =bc w/ carry
+;;    clc
+;;    rol $c0, x
+;;    ;bc<1 =78  w/ carry
+;;    rol $a4
+;;
+;;    ldx #$64
+;;    stx $0722
+;;    ;64<1 = c8 w/o carry
+;;    rol $06be, x
+;;
+;;    ldx #$80
+;;    stx $0734
+;;    ;80<1 = 00 w/ carry.
+;;    rol $0734
+;;
+;;    ;;cpx abs
+;;    ;;cpy zp/abs
+;;    lda #$de
+;;    sta $03a4
+;;    ;c5-de=-19 > (e7)
+;;    ldx #$c5
+;;    cpx $03a4
+;;
+;;    sec
+;;    ldy #$75
+;;    ldx #$e4
+;;    stx $34
+;;    ;75-e4=-6f > 91
+;;    cpy $34
+;;
+;;    ldx #$c9
+;;    stx $0825
+;;    ldy #$c9
+;;    ;c9-c9=0
+;;    cpy $0825
+;;
+;;    ;;lsr zp/zp, x/abs/abs, x
+;;    lda #$de
+;;    ldx #$e4
+;;    sta $a4
+;;    ;de>1 =6f w/o carry
+;;    clc
+;;    lsr $c0, x
+;;    ;6f>1 =37  w/ carry
+;;    lsr $a4
+;;
+;;    ldx #$64
+;;    stx $0722
+;;    ;64>1 = 32 w/o carry
+;;    lsr $06be, x
+;;
+;;    ldx #$01
+;;    stx $0734
+;;    ;01>1 = 00 w/ carry.
+;;    lsr $0734
+;;
+;;    ;;ldy abs, x
+;;    ;;ldx zp, y
+;;    ldx #$fa
+;;    stx $0820
+;;    ;;page cross
+;;    ldy $0726, x
+;;
+;;    ldx #$10
+;;    stx $0820
+;;    ;no page cross
+;;    ldy $0810, x
+;;
+;;    ldy #$10
+;;    sty $e0
+;;    ldx #$55
+;;    ldx $d0, y
+;;
+;;    ;;dec zp, x/abs, x
+;;    ;;inc zp, x/abs, x
+;;    lda #$00
+;;    ldx #$e4
+;;    sta $88
+;;    ldy #$00
+;;    dec $a4, x
+;;
+;;    ldx #$64
+;;    stx $0722
+;;    dec $06be, x
+;;
+;;    lda #$fe
+;;    ldx #$e4
+;;    sta $88
+;;    inc $a4, x
+;;    inc $a4, x
+;;    inc $a4, x
+;;
+;;    ldx #$64
+;;    stx $0722
+;;    inc $06be, x
+;;
+;;    ;;ror zp/zp,x/abs
+;;    lda #$02
+;;    ldx #$e4
+;;    sta $88
+;;    ror $a4, x
+;;    ror $a4, x
+;;    ror $a4, x
+;;
+;;    ldx #$64
+;;    stx $0722
+;;    ror $0722
+;;
+;;    ;;asl zp/zp,x/abs/abs,x
+;;    lda #$40
+;;    ldx #$e4
+;;    sta $88
+;;    asl $88
+;;    asl $a4, x
+;;    asl $a4, x
+;;
+;;    ldx #$64
+;;    stx $0722
+;;    asl $06be,x
+;;
+;;    ;;sta zp,x
+;;    ;;stx zp,y
+;;    ;;sty zp,x
+;;    lda #$40
+;;    ldx #$e4
+;;    ldy #$c5
+;;    sta $a4, x
+;;    stx $a4, y
+;;    sty $a4, x
+;;
+;;    ;;branch page cross test.
+;;    jmp bl_test0
+;;
+;;bl_test0:
+;;    ldx #5
+;;bl_test1:
+;;    dex
+;;    ;;forward branch
+;;    bpl bl_test2
+;;
+;;    jmp bl_test2
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;bl_test2:
+;;    dex
+;;    ;;backward branch
+;;    bpl bl_test1
+;;
+;;    ;;test2
+;;    ldx #5
+;;bl_test3:
+;;    dex
+;;    bpl bl_test4
+;;
+;;    jmp bl_test4
+;;
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;    .byte $00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0a, $0b, $0c, $0d, $0e, $0f
+;;
+;;bl_test4:
+;;    dex
+;;    bpl bl_test3
+;;
+;;    ;;ora zp, x/abs, x/indir, y
+;;    lda #$de
+;;    ldx #$e4
+;;    sta $a4
+;;    ;c5|de=df
+;;    lda #$c5
+;;    ora $c0, x
+;;
+;;    lda #$75
+;;    stx $0734
+;;    ;75|e4=f5
+;;    ora $0650, x
+;;
+;;    ldx #$c9
+;;    stx $0825
+;;    lda #$34
+;;    sta $07
+;;    lda #$07
+;;    sta $08
+;;    ldy #$f1
+;;    ;page crossing
+;;    ;07|c9=cf
+;;    ora ($07), y
+;;
+;;    ;;php/plp test
+;;    sec
+;;    sei
+;;    php
+;;
+;;    clc
+;;    cli
+;;    plp
+;;
+;;    ;;eor zp, x/abs, x/indir, y
+;;    lda #$de
+;;    ldx #$e4
+;;    sta $a4
+;;    ;c5^de=1b
+;;    lda #$c5
+;;    eor $c0, x
+;;
+;;    lda #$75
+;;    stx $0734
+;;    ;75^e4=91
+;;    eor $0650, x
+;;
+;;    ldx #$07
+;;    stx $0825
+;;    lda #$34
+;;    sta $07
+;;    lda #$07
+;;    sta $08
+;;    ldy #$f1
+;;    ;page crossing
+;;    ;07^07=00
+;;    eor ($07), y
+;;
+;;    ;;sbc zp, x/abs, x/indir, y
+;;    lda #$de
+;;    ldx #$e4
+;;    sta $a4
+;;    ;c5-de=-19 > e7
+;;    lda #$c5
+;;    sbc $c0, x
+;;
+;;    lda #$75
+;;    stx $0734
+;;    ;75-e4=-6f > 91
+;;    sbc $0650, x
+;;
+;;    ldx #$07
+;;    stx $07ef
+;;    lda #$34
+;;    sta $07
+;;    lda #$07
+;;    sta $08
+;;    ldy #$bb
+;;    ;07-07=00
+;;    sbc ($07), y
+;;
+;;    ;;bvs/bvc test
+;;    ;;-120=0x88
+;;    lda #$88
+;;bvs_test:
+;;    sbc #$10
+;;    bvs bvs_test
+;;    
+;;    lda #$5
+;;bvc_test:
+;;    sbc #$a
+;;    bvc bvc_test
+;;
+;;    ;;;;vram access test...
+;;	lda	#$00
+;;	sta	$2001       ;;disable bg
+;;
+;;    LDA   #$1e
+;;    STA   $2006
+;;    LDA   #$c0
+;;    STA   $2006       ;;;ppuaddr=1ec0
+;;    LDA   #$03
+;;    STA   $01
+;;    LDY   #$00
+;;    STY   $00
+;;    LDA   $2007       ;;;;from here acc broke...
+;;    LDA   $2007
+
+    ;;show bg...
+	lda	#$1e
+	sta	$2001
 
+    ;;;enable nmi
+	lda	#$80
+	sta	$2000
 
+    ;;done...
     ;;infinite loop.
 mainloop:
 	jmp	mainloop
@@ -642,6 +950,10 @@ palettes:
 	.byte	$0f, $06, $16, $26
 	.byte	$0f, $08, $18, $28
 	.byte	$0f, $0a, $1a, $2a
+	.byte	$0f, $00, $10, $20
+	.byte	$0f, $06, $16, $26
+	.byte	$0f, $08, $18, $28
+	.byte	$0f, $0a, $1a, $2a
 
 string:
 	.byte	"test2!"