mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-05-28 17:41:29 +00:00
interlace: urgh cycle counting is a pain
This commit is contained in:
Vince Weaver
parent
c64b7c7e18
commit
bbf26118bb
|
|
@ -251,16 +251,17 @@ load_ornament:
|
|||
; Calculate Note
|
||||
;=====================================
|
||||
; note offset in X
|
||||
; 6+2+52 = 60
|
||||
|
||||
; 6+52 = 58
|
||||
; 7 + 6 + [???] = note disabled
|
||||
|
||||
calculate_note:
|
||||
|
||||
.if 0
|
||||
lda note_a+NOTE_ENABLED,X ; 4+
|
||||
bne note_enabled ; 2/3
|
||||
lda note_a+NOTE_ENABLED,X ; 4
|
||||
bne note_enabled ; 3
|
||||
|
||||
sta note_a+NOTE_AMPLITUDE,X ; 5
|
||||
;-1
|
||||
sta note_a+NOTE_AMPLITUDE,X ; 4
|
||||
jmp done_note ; 3
|
||||
|
||||
note_enabled:
|
||||
|
|
@ -333,9 +334,10 @@ note_not_negative:
|
|||
cmp #96
|
||||
bcc note_not_too_high ; blt
|
||||
|
||||
lda #95
|
||||
.endif
|
||||
|
||||
lda #95 ; 2
|
||||
|
||||
note_not_too_high:
|
||||
|
||||
; w = GetNoteFreq(j,pt3->frequency_table);
|
||||
|
|
@ -672,41 +674,75 @@ sample_pos_ok:
|
|||
lda note_a+NOTE_ORNAMENT_LOOP,X
|
||||
sta note_a+NOTE_ORNAMENT_POSITION,X
|
||||
ornament_pos_ok:
|
||||
|
||||
.endif
|
||||
|
||||
done_note:
|
||||
; set mixer value
|
||||
; this is a bit complex (from original code)
|
||||
; after 3 calls it is set up properly
|
||||
lsr PT3_MIXER_VAL
|
||||
lsr PT3_MIXER_VAL ; 5
|
||||
|
||||
;=============================
|
||||
; 7+ [26] + 6 = 39 // onoff==0
|
||||
; 7+ 4 + 12 + 6 + 4 + 6 = 39 // onoff counted down to 0, do_onoff
|
||||
; 7+ 4 + 12 + 6 + 4 + 6 = 39 // onoff counted down to 0, do_offon
|
||||
; 7+ 4 + [18] + 4 + 6 = 39 // otherwise
|
||||
|
||||
handle_onoff:
|
||||
ldy note_a+NOTE_ONOFF,X ;if (a->onoff>0) {
|
||||
beq done_onoff
|
||||
ldy note_a+NOTE_ONOFF,X ;if (a->onoff>0) { ; 4
|
||||
beq done_onoff_kill_26 ; 3
|
||||
;============
|
||||
; 7
|
||||
|
||||
dey ; a->onoff--;
|
||||
; -1
|
||||
|
||||
bne put_offon ; if (a->onoff==0) {
|
||||
lda note_a+NOTE_ENABLED,X
|
||||
eor #$1 ; toggle note_enabled
|
||||
sta note_a+NOTE_ENABLED,X
|
||||
dey ; a->onoff--; ; 2
|
||||
bne put_offon_kill_18 ; if (a->onoff==0) { ; 3
|
||||
;============
|
||||
; 4
|
||||
|
||||
beq do_offon
|
||||
; -1
|
||||
lda note_a+NOTE_ENABLED,X ; 4
|
||||
eor #$1 ; toggle note_enabled ; 2
|
||||
sta note_a+NOTE_ENABLED,X ; 4
|
||||
beq do_offon ; 3
|
||||
;============
|
||||
; 12
|
||||
do_onoff:
|
||||
ldy note_a+NOTE_ONOFF_DELAY,X ; if (a->enabled) a->onoff=a->onoff_delay;
|
||||
jmp put_offon
|
||||
; -1
|
||||
; if (a->enabled) a->onoff=a->onoff_delay;
|
||||
ldy note_a+NOTE_ONOFF_DELAY,X ; 4
|
||||
jmp put_offon ; 3
|
||||
;============
|
||||
; 6
|
||||
do_offon:
|
||||
ldy note_a+NOTE_OFFON_DELAY,X ; else a->onoff=a->offon_delay;
|
||||
put_offon:
|
||||
sty note_a+NOTE_ONOFF,X
|
||||
.endif
|
||||
; else a->onoff=a->offon_delay;
|
||||
ldy note_a+NOTE_OFFON_DELAY,X ; 4
|
||||
nop ; make things match ; 2
|
||||
;============
|
||||
; 6
|
||||
|
||||
put_offon:
|
||||
sty note_a+NOTE_ONOFF,X ; 4
|
||||
;============
|
||||
; 4
|
||||
done_onoff:
|
||||
|
||||
rts ; 6
|
||||
|
||||
done_onoff_kill_26:
|
||||
inc CYCLE_WASTE ; 5
|
||||
lda CYCLE_WASTE ; 3
|
||||
inc CYCLE_WASTE ; 5
|
||||
inc CYCLE_WASTE ; 5
|
||||
inc CYCLE_WASTE ; 5
|
||||
jmp done_onoff ; 3
|
||||
|
||||
|
||||
put_offon_kill_18:
|
||||
inc CYCLE_WASTE ; 5
|
||||
inc CYCLE_WASTE ; 5
|
||||
inc CYCLE_WASTE ; 5
|
||||
jmp put_offon ; 3
|
||||
|
||||
|
||||
|
||||
|
|
@ -1466,7 +1502,7 @@ not_done:
|
|||
; update pattern or line if necessary
|
||||
; then calculate the values for the next frame
|
||||
|
||||
; 8+367=375
|
||||
; 8+373=381
|
||||
|
||||
;==========================
|
||||
; pattern done early!
|
||||
|
|
@ -1565,8 +1601,7 @@ next_pattern:
|
|||
;======================================
|
||||
; ????? FIXME/calculate note
|
||||
;
|
||||
|
||||
; 9+ 196 + 36+11+18+30+18+49 = 367
|
||||
; 9+ 202 + 36+11+18+30+18+49 = 373
|
||||
|
||||
do_frame:
|
||||
; AY-3-8910 register summary
|
||||
|
|
@ -1588,13 +1623,13 @@ do_frame:
|
|||
; 9
|
||||
|
||||
;;ldx #(NOTE_STRUCT_SIZE*0) ; Note A
|
||||
jsr calculate_note ; 6+58
|
||||
jsr calculate_note ; 6+60
|
||||
ldx #(NOTE_STRUCT_SIZE*1) ; Note B ; 2
|
||||
jsr calculate_note ; 6+58
|
||||
jsr calculate_note ; 6+60
|
||||
ldx #(NOTE_STRUCT_SIZE*2) ; Note C ; 2
|
||||
jsr calculate_note ; 6+58
|
||||
jsr calculate_note ; 6+60
|
||||
;=============
|
||||
; FIXME 196
|
||||
; 202
|
||||
|
||||
; Note, we assume 1MHz timings, adjust pt3 as needed
|
||||
|
||||
|
|
@ -1716,12 +1751,14 @@ pt3_envelope_delay_smc:
|
|||
lda #$d1 ; 2
|
||||
beq done_do_frame_x ; assume can't be negative? ; 3
|
||||
; do this if envelope_delay>0
|
||||
;====
|
||||
; 5
|
||||
;==========
|
||||
; 5
|
||||
|
||||
; -1
|
||||
dec pt3_envelope_delay_smc+1 ; 6
|
||||
bne done_do_frame_y ; 3
|
||||
;==========
|
||||
; 8
|
||||
; only do if we hit 0
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -178,10 +178,10 @@ display_loop:
|
|||
; -582 -- erase 22+4*(8+6+126) = 582
|
||||
; -696 -- move+draw 4*(16+26+6+126) = 696
|
||||
; -10 -- keypress
|
||||
; -381(382) -- calc values
|
||||
; -387 -- calc values
|
||||
; -997 -- mockingboard out
|
||||
;=======
|
||||
; 1883 2881 2265
|
||||
; 1878
|
||||
|
||||
pad_time:
|
||||
|
||||
|
|
@ -354,7 +354,7 @@ pad_time:
|
|||
;============================
|
||||
|
||||
|
||||
jsr pt3_make_frame ; 6+375 = 381
|
||||
jsr pt3_make_frame ; 6+381 = 387
|
||||
jsr mb_write_frame ; 6+991 = 997
|
||||
|
||||
|
||||
|
|
@ -362,16 +362,20 @@ pad_time:
|
|||
; WAIT for VBLANK to finish
|
||||
;============================
|
||||
|
||||
; Try X=6 Y=54 cycles=1945R5
|
||||
; nop
|
||||
; lda TEMP
|
||||
|
||||
; Try X=6 Y=52 cycles=1873R5
|
||||
nop
|
||||
lda TEMP
|
||||
|
||||
; Try X=124 Y=3 cycles=1879R4
|
||||
|
||||
nop
|
||||
nop
|
||||
|
||||
;; Try X=2 Y=180 cycles=2881
|
||||
;; Try X=112 Y=4 cycles=2265
|
||||
|
||||
ldy #3 ; 2
|
||||
loop1: ldx #124 ; 2
|
||||
ldy #52 ; 2
|
||||
loop1: ldx #6 ; 2
|
||||
loop2: dex ; 2
|
||||
bne loop2 ; 2nt/3
|
||||
dey ; 2
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user