While doing some experiments recently, I looked at the Japanese wiki page and realized that the note lengths are in a slightly different order in FF4 than the later cores.
Note Lengths:1/1, 3/4, 1/2, 3/8, 1/3, 1/4, 3/16, 1/6, 1/8, 1/12, 1/16, 1/24, 1/32, 1/48, 1/64
My dumper from before had the "3/8" and "1/3" switched, and also had "3/16" and "1/6" switched because it assumed the note lengths were in the same order as FFV (and the one used in FF6/CT/etc if you ignore the extra note length.)
Also, some (nonheadered) offsets:
3721D - SPC pointers
24942 - BRR pointers
Both, however, are not standard Lorom addresses. It adjusts the pointer based on the upper 16-bits.
$04/8651 A5 21 LDA $21 [$00:1E21]
$04/8653 C9 40 00 CMP #$0040
$04/8656 B0 05 BCS $05 [$865D]
$04/8658 69 C0 04 ADC #$04C0
$04/865B 80 22 BRA $22 [$867F]
$04/865D C9 C0 00 CMP #$00C0
$04/8660 B0 05 BCS $05 [$8667]
$04/8662 69 40 05 ADC #$0540
$04/8665 80 18 BRA $18 [$867F]
$04/8667 C9 40 01 CMP #$0140
$04/866A B0 05 BCS $05 [$8671]
$04/866C 69 C0 05 ADC #$05C0
$04/866F 80 0E BRA $0E [$867F]
$04/8671 C9 C0 01 CMP #$01C0
$04/8674 B0 05 BCS $05 [$867B]
$04/8676 69 40 06 ADC #$0640
$04/8679 80 04 BRA $04 [$867F]
$04/867B 18 CLC
$04/867C 69 C0 06 ADC #$06C0
$04/867F 85 21 STA $21 [$00:1E21]
Topic: FF4 SPC Core info (Read 10605 times)