Apple-2-SW/dos33fsprogs
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This commit is contained in:
Peter Ferrie 2019-06-03 14:42:07 -07:00
parent 0d861e16c7
commit d72f629d93
1 changed files with 9 additions and 14 deletions
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23
pt3_player/pt3_lib.s
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@ -497,7 +497,6 @@ VolTableCreator:
; Init initial variables
lda #$0
sta z80_h
sta z80_d
ldy #$11
@ -524,14 +523,11 @@ vol_type_35:
ldy #16 ; skip first row, all zeros
ldx #16 ; c=16
vol_outer:
lda z80_h
pha ; save H
clc ; add HL,DE
lda z80_l
adc z80_e
sta z80_e
lda z80_h
lda #0
adc z80_d
sta z80_d ; carry is important
@ -572,8 +568,6 @@ vol_smc:
pla
pla
sta z80_h ; restore H
lda z80_e ; a=e
cmp #$77
@ -691,8 +685,9 @@ note_not_too_high:
; a->tone = (a->tone + a->tone_sliding + w) & 0xfff;
clc
lda note_a+NOTE_TONE_L,X
adc note_a+NOTE_TONE_SLIDING_L,X
ldy note_a+NOTE_TONE_SLIDING_L,X
tya
adc note_a+NOTE_TONE_L,X
sta note_a+NOTE_TONE_L,X
lda note_a+NOTE_TONE_H,X
adc note_a+NOTE_TONE_SLIDING_H,X
@ -720,9 +715,10 @@ note_not_too_high:
; a->tone_sliding+=a->tone_slide_step
clc ;;can be removed if ADC freq_h cannot overflow
lda note_a+NOTE_TONE_SLIDING_L,X
tya
adc note_a+NOTE_TONE_SLIDE_STEP_L,X
sta note_a+NOTE_TONE_SLIDING_L,X
tay
lda note_a+NOTE_TONE_SLIDING_H,X
adc note_a+NOTE_TONE_SLIDE_STEP_H,X
sta note_a+NOTE_TONE_SLIDING_H,X
@ -743,7 +739,7 @@ check1:
; (a->tone_sliding <= a->tone_delta) ||
; 16 bit signed compare
lda note_a+NOTE_TONE_SLIDING_L,X ; NUM1-NUM2
tya ; NUM1-NUM2
cmp note_a+NOTE_TONE_DELTA_L,X ;
lda note_a+NOTE_TONE_SLIDING_H,X
sbc note_a+NOTE_TONE_DELTA_H,X
@ -753,7 +749,7 @@ sc_loser1:
bmi slide_to_note ; then A (signed) < NUM (signed) and BMI will branch
; equals case
lda note_a+NOTE_TONE_SLIDING_L,X
tya
cmp note_a+NOTE_TONE_DELTA_L,X
bne check2
lda note_a+NOTE_TONE_SLIDING_H,X
@ -767,7 +763,7 @@ check2:
; (a->tone_sliding >= a->tone_delta)
; 16 bit signed compare
lda note_a+NOTE_TONE_SLIDING_L,X ; NUM1-NUM2
tya ; NUM1-NUM2
cmp note_a+NOTE_TONE_DELTA_L,X ;
lda note_a+NOTE_TONE_SLIDING_H,X
sbc note_a+NOTE_TONE_DELTA_H,X
@ -941,7 +937,6 @@ envelope_slide_done:
; a->envelope_sliding = j;
sta note_a+NOTE_ENVELOPE_SLIDING,X
clc
last_envelope: