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pt3: more timing numbers

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This commit is contained in:
Vince Weaver 2019-06-05 00:56:52 -04:00
parent 5ae0023bd6
commit 8691e095f4
1 changed files with 20 additions and 16 deletions
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36
pt3_player/pt3_lib.s
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@ -1332,27 +1332,31 @@ decode_case_cx_not_c0:
decode_case_dX:
;==============================
; $DX -- change sample
; $DX/$EX -- change sample
;==============================
; FIXME: merge with below?
cmp #$d0
bne decode_case_eX
lda note_command_bottom
bne decode_case_dx_not_d0
; if $D0
cmp #$d0 ; 2
bne decode_case_dX_eX ; 3
; -1
; only gets here if $D0??
lda note_command_bottom ; 4
bne decode_case_dx_not_d0 ; 3
;========================
; d0 case means end note
rol decode_done
rol decode_done ; deep magic ; 6
; where is C set?
bne done_decode ; branch always ; 3
bne done_decode
decode_case_eX:
;==============================
; $EX -- change sample
;==============================
cmp #$e0
decode_case_dX_eX:
cmp #$e0 ; 2
bne decode_case_fX
lda note_command
@ -1365,11 +1369,11 @@ decode_case_dx_not_d0:
jsr load_sample ; load sample in bottom nybble
bcc done_decode ; branch always
decode_case_fX:
;==============================
; $FX - change ornament/sample
;==============================
decode_case_fX:
; disable envelope
lda #0
sta note_a+NOTE_ENVELOPE_ENABLED,X
@ -2190,7 +2194,7 @@ GetNoteFreq:
lda PT3NoteTable_ST_low,Y ; 4+
sta freq_l ; 4
ldy TEMP ;
ldy TEMP ; 3
rts ; 6
;===========
; 40