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Still messing with the symbol names in neslib

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This commit is contained in:
Safiire 2015-03-15 03:47:48 -07:00
parent e5ef0fac5f
commit e54e5b17fb
2 changed files with 13 additions and 11 deletions
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16
examples/demo.asm
View File

@ -175,8 +175,8 @@
.scope load_palette
lda #$3F
ldx #$00
sta nes.vram.address2
stx nes.vram.address2
sta nes.vram.address
stx nes.vram.address
loop:
lda palette, x
sta nes.vram.io
@ -198,9 +198,9 @@
lda #>bg
sta $11
lda #$24
sta nes.vram.address2
sta nes.vram.address
lda #$00
sta nes.vram.address2
sta nes.vram.address
loop:
lda ($10), y
sta nes.vram.io
@ -324,16 +324,16 @@ reverse_dx:
; Scroll the screen if we have to
scroll_screen:
ldx #$00 ; Reset VRAM Address to $0000
stx nes.vram.address2
stx nes.vram.address2
stx nes.vram.address
stx nes.vram.address
ldx scroll zp ; Do we need to scroll at all?
beq no_scroll
dex
stx scroll zp
lda #$00
sta nes.vram.address1 ; Write 0 for Horiz. Scroll value
stx nes.vram.address1 ; Write the value of 'scroll' for Vert. Scroll value
sta nes.ppu.scroll ; Write 0 for Horiz. Scroll value
stx nes.ppu.scroll ; Write the value of 'scroll' for Vert. Scroll value
no_scroll:
rts

8
nes_lib/nes.sym
View File

@ -16,17 +16,19 @@
.space control1 1 ; $2000
.space control2 1 ; $2001
.space status 1 ; $2002
.org $2005
.space scroll 1 ; $2005
.
.org $2003
.scope sprite
.space address 1 ; $2003
.space io 1 ; $2004
.org $4014
.space dma 1 ; $4014
.
.org $2006
.scope vram
.org $2005
.space address1 1 ; $2005
.space address2 1 ; $2006
.space address 1 ; $2006
.space io 1 ; $2007
.