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ds: update timings

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This commit is contained in:
Vince Weaver 2019-11-08 13:28:14 -05:00
parent ecee38fef7
commit c5ed1c57e8
2 changed files with 13 additions and 16 deletions
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13
demosplash/appleII_intro.s
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@ -159,9 +159,9 @@ page1_loop: ; delay 115+(7 loop)+4 (bit)+4(extra)
; -1174
; -7 (keypress)
; -3 (jump)
; -1239 (play_music)
; -1243 (play_music)
; =====
; 2126 2179
; 2122 2179
jsr do_nothing ; 6
@ -419,7 +419,7 @@ intro_wipe_done:
no_keypress2:
jsr play_frame_compressed ; 6+1233
jsr play_frame_compressed ; 6+1237
jmp display_loop ; 3
@ -431,12 +431,9 @@ appleii_done:
;=================================
; do nothing
;=================================
; and take 2126-12 = 2114 cycles to do it
; and take 2122-12 = 2110 cycles to do it
do_nothing:
; Try X=21 Y=19 cycles=2110R4
nop
nop
; Try X=21 Y=19 cycles=2110
ldy #19 ; 2
loop1: ldx #21 ; 2

16
demosplash/pt3_lib_play_frame.s
View File

@ -14,7 +14,7 @@
;DA00 ;a $AE00,$AF00,$B000 = ENV high (r12)
; 3+ 72 + 72 + 83 + 74 + 72 + 77 + 19 + 70 + 74 + 72 +
; 77 + 18 + 82 + 85 + 72 + 72 + 10 + 123 + 6 = 1233 /////1180
; 77 + 18 + 82 + 85 + 72 + 72 + 10 + 127 + 6 = 1237 /////1180
play_frame_compressed:
@ -194,9 +194,9 @@ r12_smc:
no_frame_wrap:
; -1
; delay 123+1-3=121
lda #94 ; 2
jsr delay_a ; 121-2-25=94
; delay 127+1-3=125
lda #98 ; 2
jsr delay_a ; 125-2-25=98
jmp done_frame_wrap ; 3
frame_wrap:
@ -204,9 +204,9 @@ frame_wrap:
sta FRAME_PLAY_OFFSET ; 3
inc FRAME_PLAY_PAGE ; 5
jsr update_pt3_play ; 6+107
jsr update_pt3_play ; 6+111
;=====
; 123
; 127
done_frame_wrap:
@ -250,7 +250,7 @@ play_mb_write:
;===========================
; update the SMC counters
; 13+88+6=107
; 13+92+6=111
update_pt3_play:
lda FRAME_PLAY_PAGE ; 3
@ -296,6 +296,6 @@ update_pt3_play:
lda music_addr_table+10,Y ; 4 ; DA
sta r12_smc+2 ; 4
;==========
; 11*8 = 88
; 11*8+4 = 92
rts ; 6