514 lines
5.4 KiB
ArmAsm
514 lines
5.4 KiB
ArmAsm
; Soft Switches
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KEYPRESS= $C000
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KEYRESET= $C010
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SPEAKER = $C030
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WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us
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; MAX=35968 = 35ms or so
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; 121755 (121ms)
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; 243510000 = 26+27A+5A2
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COUNT = $FF
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repo2:
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lda KEYPRESS
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bpl done
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bit KEYRESET
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check1:
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cmp #'1'+$80
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bne check2
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jsr pattern1
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jmp repo2
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check2:
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cmp #'2'+$80
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bne check3
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jsr pattern2
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jmp repo2
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check3:
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cmp #'3'+$80
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bne check4
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jsr drum1
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jmp repo2
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check4:
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cmp #'4'+$80
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bne check5
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jsr drum2
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jmp repo2
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check5:
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cmp #'5'+$80
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bne check6
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jsr drum3
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jmp repo2
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check6:
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cmp #'6'+$80
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bne check7
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jsr siren
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jmp repo2
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check7:
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cmp #'7'+$80
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bne check8
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jsr siren2
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jmp repo2
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check8:
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done:
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jmp repo2
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pattern1:
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lda #35
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sta COUNT
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pattern1_loop:
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; for cycles
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; 5466 to draw
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; current delay=200 = 19135
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; total cycles = 2458*35= 86030
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;1203 //35 times (halfway a 1259)
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;1254
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;1200
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bit SPEAKER ;4
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; want 1203-4 = 1199
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; Try X=8 Y=26 cycles=1197
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nop ; 2
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ldy #26 ; 2
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loop3:
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ldx #8 ; 2
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loop4:
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dex ; 2
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bne loop4 ; 2nt/3
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dey ; 2
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bne loop3 ; 2nt/3
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; want 1254-4 = 1250
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bit SPEAKER ; 4
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; Try X=248 Y=1 cycles=1247
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lda $0 ; 3
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ldy #1 ; 2
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loop5:
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ldx #248 ; 2
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loop6:
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dex ; 2
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bne loop6 ; 2nt/3
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dey ; 2
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bne loop5 ; 2nt/3
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dec COUNT
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bne pattern1_loop
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rts
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pattern2: ; bip
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lda #35
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sta COUNT
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pattern2_loop:
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;812 //35 times
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;772
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;873
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bit SPEAKER ;4
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; want 812-4 = 808
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; Try X=1 Y=73 cycles=804
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nop ; 2
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nop ; 2
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ldy #73 ; 2
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loop7:
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ldx #1 ; 2
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loop8:
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dex ; 2
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bne loop8 ; 2nt/3
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dey ; 2
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bne loop7 ; 2nt/3
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; want 772-4 = 768
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bit SPEAKER ; 4
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; Try X=9 Y=15 cycles=766
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nop ; 2
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ldy #15 ; 2
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loop9:
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ldx #9 ; 2
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loop10:
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dex ; 2
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bne loop10 ; 2nt/3
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dey ; 2
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bne loop9 ; 2nt/3
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; want 873-4 = 869
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bit SPEAKER ; 4
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; Try X=42 Y=4 cycles=865
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nop ; 2
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nop ; 2
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ldy #4 ; 2
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loop11:
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ldx #42 ; 2
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loop12:
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dex ; 2
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bne loop12 ; 2nt/3
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dey ; 2
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bne loop11 ; 2nt/3
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dec COUNT
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bne pattern2_loop
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rts
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;=============================
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;
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drum1:
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bit $C030
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jsr delay_1600
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jsr delay_800
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jsr delay_200
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bit $C030
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jsr delay_800
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jsr delay_400
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bit $C030
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jsr delay_800
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bit $C030
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jsr delay_800
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jsr delay_400
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bit $C030
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jsr delay_1600
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jsr delay_800
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jsr delay_400
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bit $C030
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jsr delay_200
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bit $C030
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jsr delay_400
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bit $C030
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jsr delay_1600
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jsr delay_800
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bit $C030
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jsr delay_3200
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jsr delay_800
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jsr delay_400
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bit $C030
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jsr delay_800
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jsr delay_200
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bit $C030
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jsr delay_200
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bit $C030
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rts
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;=============================
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;
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drum2:
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bit $C030
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jsr delay_800
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bit $C030
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jsr delay_400
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bit $C030
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jsr delay_800
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jsr delay_400
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bit $C030
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jsr delay_800
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jsr delay_200
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bit $C030
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jsr delay_800
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jsr delay_400
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bit $C030
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jsr delay_1600
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jsr delay_200
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bit $C030
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jsr delay_200
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bit $C030
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jsr delay_400
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jsr delay_200
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bit $C030
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jsr delay_1600
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jsr delay_800
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bit $C030
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jsr delay_1600
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jsr delay_800
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bit $C030
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rts
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;=============================
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;
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drum3:
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bit $C030
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jsr delay_1600
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jsr delay_800
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bit $C030
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jsr delay_400
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bit $C030
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jsr delay_200
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bit $C030
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jsr delay_200
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bit $C030
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jsr delay_200
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jsr delay_400
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bit $C030
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jsr delay_400
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jsr delay_800
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bit $C030
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jsr delay_800
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bit $C030
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rts
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; subtract 6(jsr)6(rts)11(below)
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; want 177
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; Try X=2 Y=11 cycles=177
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delay_200:
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ldy #11 ; 2
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ldx #2 ; 2
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stx xdelay_smc+1 ; 4
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jmp do_custom_delay ; 3
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; subtract 6(jsr)6(rts)11(below)
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; want 377
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; Try X=74 Y=1 cycles=377
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delay_400:
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ldy #1 ; 2
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ldx #74 ; 2
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stx xdelay_smc+1 ; 4
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jmp do_custom_delay ; 3
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; subtract 6(jsr)6(rts)11(below)
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; want 777
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; Try X=154 Y=1 cycles=777
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delay_800:
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ldy #1 ; 2
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ldx #154 ; 2
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stx xdelay_smc+1 ; 4
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jmp do_custom_delay ; 3
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; subtract 6(jsr)6(rts)11(below)
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; want 1577
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; Try X=3 Y=75 cycles=1576
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delay_1600:
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ldy #75 ; 2
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ldx #3 ; 2
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stx xdelay_smc+1 ; 4
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jmp do_custom_delay ; 3
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; subtract 6(jsr)6(rts)11(below)
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; want 3177
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; Try X=8 Y=69 cycles=3175
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delay_3200:
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ldy #69 ; 2
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ldx #8 ; 2
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stx xdelay_smc+1 ; 4
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jmp do_custom_delay ; 3
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do_custom_delay:
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ldy #15 ; 2
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dcd_outer:
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xdelay_smc:
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ldx #9 ; 2
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dcd_inner:
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dex ; 2
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bne dcd_inner ; 2nt/3
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dey ; 2
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bne dcd_outer ; 2nt/3
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rts
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;=================
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;
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siren:
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; x=0 to 255
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; delay=14+34*X
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ldx #0
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siren_xloop:
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bit $C030 ; 4
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txa ; 2
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tay ; 2
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siren_yloop:
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; need to delay 25 cycles
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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dey ; 2
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bne siren_yloop ; 3
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; need to delay 9 cycles
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lda $0 ; 3
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lda $0 ; 3
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lda $0 ; 3
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inx ; 2
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bne siren_xloop ; 3
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rts
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;=================
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;
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siren2:
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; x=0 to 255
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; click + delay=14+34*X
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; cilck + delay=14+34*(255-X)
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ldx #0
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siren2_xloop:
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bit $C030 ; 4
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txa ; 2
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tay ; 2
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siren2_yloop:
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; need to delay 25 cycles
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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dey ; 2
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bne siren2_yloop ; 3
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; need to delay 14 cycles
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lda $0 ; 3
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lda $0 ; 3
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lda $0 ; 3
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lda $0 ; 3
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lda $0 ; 3
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nop ; 2
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; down
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bit $C030 ; 4
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txa ; 2
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eor #$ff ; 2
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sec ; 2
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adc #$FF ; 2
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tay ; 2
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siren2_yloop2:
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; need to delay 25 cycles
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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lsr $0 ; 5
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dey ; 2
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bne siren2_yloop2 ; 3
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inx ; 2
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bne siren2_xloop ; 3
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rts
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