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waterfall: have all 4 states working now

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This commit is contained in:
Vince Weaver 2018-08-03 16:34:53 -04:00
parent 0bcb7e3934
commit a169c22351
1 changed files with 15 additions and 15 deletions
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30
waterfall/waterfall.s
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@ -224,8 +224,8 @@ loopB:
jump_table: jump_table:
.word (display_odd-1) .word (display_odd-1)
.word (display_even-1) .word (display_even-1)
.word (display_odd-1) .word (display_three-1)
.word (display_even-1) .word (display_four-1)
jump_addr: jump_addr:
.word $00 .word $00
@ -254,7 +254,7 @@ jump_addr:
display_loop: display_loop:
inc FRAME ; 5 inc FRAME ; 5
lda FRAME ; 3 lda FRAME ; 3
and #$10 ; 2 and #$30 ; 2
;========== new code ;========== new code
@ -1269,16 +1269,15 @@ display_three:
three_first_four_lines: three_first_four_lines:
; line 0 ; line 0
; 21 ; 38
ldy #4 ; 2 ldy #4 ; 2
asl DUMMY ; 6 asl DUMMY ; 6
asl DUMMY ; 6 asl DUMMY ; 6
asl DUMMY ; 6 asl DUMMY ; 6
asl DUMMY ; 6 lda YPOS ; 3
asl DUMMY ; 6 nop ; 2
asl DUMMY ; 6 nop ; 2
asl DUMMY ; 6
; line 1, 65 cycles ; line 1, 65 cycles
@ -1595,7 +1594,8 @@ ground_loop_three_done:
; 3 ; 3
nop ; 2 nop ; 2
rts ; 6 jmp display_loop_return ; 3
.align $100 .align $100
@ -1616,16 +1616,16 @@ four_first_four_lines:
; line 0 ; line 0
; 21 ; 38
ldy #4 ; 2 ldy #4 ; 2
asl DUMMY ; 6 asl DUMMY ; 6
asl DUMMY ; 6 asl DUMMY ; 6
asl DUMMY ; 6 asl DUMMY ; 6
asl DUMMY ; 6 lda YPOS ; 3
asl DUMMY ; 6 nop ; 2
asl DUMMY ; 6 nop ; 2
asl DUMMY ; 6
; line 1, 65 cycles ; line 1, 65 cycles
@ -1942,6 +1942,6 @@ ground_loop_four_done:
; 3 ; 3
nop ; 2 nop ; 2
rts ; 6 jmp display_loop_return ; 3