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ds: some minor optimization

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This commit is contained in:
Vince Weaver 2019-11-07 22:26:59 -05:00
parent 3a204cba54
commit fed525de8e
2 changed files with 5 additions and 13 deletions
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4
demosplash/NOTES
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@ -97,9 +97,9 @@ Memory Map
0800-0bff lores page2
0c00-0fff (used as page3) (also loader 200 )
1000-13ff (used for background masks) (also loader 1000-12ff)
1400-???? executable (31744 bytes)
1400-???? executable (33792 bytes)
9000-bfff graphics lookup / audio buffer
9800-bfff graphics lookup / audio buffer
c000-cfff I/O
d000-ffff ROM (language card: music)

14
demosplash/missing.s
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@ -6,17 +6,11 @@
missing_intro:
;===================
; init screen
; jsr TEXT
; jsr HOME
bit KEYRESET
;===================
; init vars
lda #0
sta DRAW_PAGE
; lda #0
; sta DRAW_PAGE
;=============================
; setup graphics code
@ -136,7 +130,6 @@ mloopB: dex ; 2
missing_display_loop:
jsr $9800 ; update_type1
;.include "missing_screen_update.s"
;======================================================
; We have 4550 cycles in the vblank, use them wisely
@ -180,7 +173,6 @@ gloop2: dex ; 2
rts
;.align $100
;.include "k_40_48d.inc"