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space_bars: more work on timing split

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This commit is contained in:
Vince Weaver 2018-10-07 16:29:40 -04:00
parent 7740856c39
commit efb5821ab6
2 changed files with 180 additions and 18 deletions
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48
space_bars/game.s
View File

@ -214,7 +214,7 @@ sbloopD:dex ; 2
sb_mixed:
nop ;kill 6 cycles (room for rts) ; 2
nop ; 2
ldy #144 ; 2
ldy #126 ; 2
sb_mixed_loop:
nop
@ -231,16 +231,27 @@ sb_mixed_loop:
; in vblank
; delay 144*65 = 9360
; Try X=37 Y=49 cycles=9360
sb_all_gr:
; 18 lines of this
; ldy #49 ; 2
;sbloopE:ldx #37 ; 2
;sbloopF:dex ; 2
; bne sbloopF ; 2nt/3
; dey ; 2
; bne sbloopE ; 2nt/3
; 18 * 65 = 1170
; -4
; -5
; =========
; 1161
bit LORES ; 4
; Try X=22 Y=10 cycles=1161
ldy #10 ; 2
sbloopE:ldx #22 ; 2
sbloopF:dex ; 2
bne sbloopF ; 2nt/3
dey ; 2
bne sbloopE ; 2nt/3
@ -249,17 +260,14 @@ sb_mixed_loop:
;======================================================
; do_nothing should be 4550
; - 5 from above
; -10 keypress
; ===========
; 4535
; 4540
; Try X=40 Y=22 cycles=4533 R2
; Try X=9 Y=89 cycles=4540
nop
ldy #22 ; 2
sbloop1:ldx #40 ; 2
ldy #89 ; 2
sbloop1:ldx #9 ; 2
sbloop2:dex ; 2
bne sbloop2 ; 2nt/3
dey ; 2
@ -277,9 +285,15 @@ sb_start_over:
rts ; 6
.align $100
.include "screen_split.s"
;.include "deater.inc"
background_hgr:
.incbin "SB_BACKGROUNDC.BIN.lz4",11
background_hgr_end:
.include "screen_split.s"

150
space_bars/screen_split.s
View File

@ -14,9 +14,10 @@
; 32 NnBBBBNnNnNnNnNnNnNnNnNnNnNnNnNnNnbbbbNnRrrrrr
; 36 BBBBNnNnNnNnNnNnNnNnNnNnNnNnNnNnNnNnbbbbRrrrrr
; add 23 each time?
; 23 bytes in size?
split_4:
nop
nop
@ -59,6 +60,153 @@ split_8:
nop
rts
split_12:
nop
nop
nop
nop
nop
nop
bit LORES
nop
nop
nop
nop
bit HIRES
nop
nop
nop
nop
nop
nop
rts
split_16:
nop
nop
nop
nop
nop
bit LORES
nop
nop
nop
nop
nop
nop
bit HIRES
nop
nop
nop
nop
nop
rts
split_20:
nop
nop
nop
nop
bit LORES
nop
nop
nop
nop
nop
nop
nop
nop
bit HIRES
nop
nop
nop
nop
rts
split_24:
nop
nop
nop
bit LORES
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
bit HIRES
nop
nop
nop
rts
split_28:
nop
nop
bit LORES
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
bit HIRES
nop
nop
rts
split_32:
nop
bit LORES
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
bit HIRES
nop
rts
split_36:
bit LORES
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
bit HIRES
rts
; 6 4 25+16+8+16 NNNNNNNN