projects
/
snes_test1
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
fixed uninitialized per-tile hscroll table
[snes_test1]
/
test.asm
diff --git
a/test.asm
b/test.asm
index
eff673c
..
4c51874
100644
(file)
--- a/
test.asm
+++ b/
test.asm
@@
-15,6
+15,14
@@
sep #$20
.a8
.endmacro
sep #$20
.a8
.endmacro
+ .macro I16
+ rep #$10
+ .i16
+ .endmacro
+ .macro I8
+ sep #$10
+ .i8
+ .endmacro
; VMEM map
; 0000: tilemap for BG1 (32x32 4bpp: 512b)
; VMEM map
; 0000: tilemap for BG1 (32x32 4bpp: 512b)
@@
-256,6
+264,16
@@
snes_init:
stz REG_MDMAEN
stz REG_HDMAEN
stz REG_MEMSEL
stz REG_MDMAEN
stz REG_HDMAEN
stz REG_MEMSEL
+
+ ; clear vmem
+ I16
+ setreg REG_VMAINC, $80
+ ldx $4000
+@clear: stz REG_VMDATAL
+ stz REG_VMDATAH
+ dex
+ bne @clear
+ I8
rts
; cartridge header
rts
; cartridge header