diff options
Diffstat (limited to 'src-z80')
| -rw-r--r-- | src-z80/player/fm (copia).z80 | 837 |
1 files changed, 0 insertions, 837 deletions
diff --git a/src-z80/player/fm (copia).z80 b/src-z80/player/fm (copia).z80 deleted file mode 100644 index 4c0b565..0000000 --- a/src-z80/player/fm (copia).z80 +++ /dev/null @@ -1,837 +0,0 @@ -;**************************************************************************** -; NoteOnFM -; Does a "note on" for a FM channel -;**************************************************************************** - -NoteOnFMSFX: - call NoteOnFM ; We're just a wrapper - jp ProcessSFXRun ; End of subroutine - -NoteOnFMBGM: - ld b, a - PollPCM - - push hl - ld a, b - and $07 ; Check if channel is free - ld hl, RAM_Locked - add l - ld l, a - ld a, (hl) - pop hl - or a - jp nz, ProcessBGMSkip1 ; Don't play if locked - - ld a, b - call NoteOnFM ; We're just a wrapper - jp ProcessBGMRun ; End of subroutine - -NoteOnFM: - and $07 ; Get channel ID - ld (ix+0), $28 ; Note off - ld (ix+1), a - - ld b, a - ex af, af' - PollPCM - - ld a, b ; Determine which port to write - and $04 - rrca - ld iyl, a - - PollPCM - call GetParam ; Get note - PollPCM - - ex af, af' - push de - push hl - - ld d, a - and $03 ; Index of first frequency register - add $A4 - ld e, a - - PollPCM - - ld h, FMFreqTable>>8 ; Get address of note - ld a, b - and $1F - add FMFreqTable&$FF - ld l, a - - PollPCM - - ld a, b ; Set new frequency - and $E0 - rrca - rrca - ld b, a - ld a, (hl) - or b - ld (iy+0), e - ld (iy+1), a - - PollPCM - - ld a, e - sub 4 - ld e, a - dec l - ld a, (hl) - ld (iy+0), e - ld (iy+1), a - - PollPCM - - ld a, d ; Note on! - or $F0 - ld (ix+0), $28 - ld (ix+1), a - - pop hl - pop de - ret ; End of subroutine - -;**************************************************************************** -; NoteOffFM -; Does a "note off" for a FM channel -;**************************************************************************** - -NoteOffFMSFX: - call NoteOffFM ; We're just a wrapper - jp ProcessSFXRun ; End of subroutine - -NoteOffFMBGM: - ld b, a - PollPCM - ld a, b - - push hl - and $07 ; Check if channel is free - ld hl, RAM_Locked - add l - ld l, a - ld a, (hl) - pop hl - or a - jp nz, ProcessBGMSkip ; Don't stop if locked - - ld a, b - call NoteOffFM ; We're just a wrapper - jp ProcessBGMRun ; End of subroutine - -NoteOffFM: - and $07 ; Get channel ID - ld (ix+0), $28 ; Note off - ld (ix+1), a - ret ; End of subroutine - -;**************************************************************************** -; SetFMNote* -; Sets the note of a FM channel without "note on" -;**************************************************************************** - -SetNoteFMSFX: - call SetNoteFM ; We're just a wrapper - jp ProcessSFXRun ; End of subroutine - -SetNoteFMBGM: - ld b, a - PollPCM - ld a, b - - push hl - and $07 ; Check if channel is free - ld hl, RAM_Locked - add l - ld l, a - ld a, (hl) - pop hl - or a - jp nz, ProcessBGMSkip2 ; Don't change if locked - - ld a, b - call SetNoteFM ; We're just a wrapper - jp ProcessBGMRun ; End of subroutine - -SetNoteFM: - push af - ld b, a - PollPCM - - ld a, b ; Determine which port to write - and $04 - rrca - ld iyl, a - - PollPCM - call GetParam ; Get high byte - PollPCM - - pop af - push de - - and $07 - ld d, a - and $03 ; Index of first frequency register - add $A4 - ld e, a - - PollPCM - - ld (iy+0), e ; Load high byte - ld (iy+1), b - - PollPCM ; Load low byte - call GetParam - PollPCM - - ld a, e - sub 4 - ld e, a - - ld (iy+0), e - ld (iy+1), b - - PollPCM - pop de - ret ; End of subroutine - -;**************************************************************************** -; LoadFM* -; Loads a FM instrument -;**************************************************************************** - -LoadFMSFX: - call LoadFMEvent ; We're just a wrapper - jp ProcessSFXRun ; End of subroutine - -LoadFMBGM: - and $07 ; Get channel ID - ld b, a - PollPCM - - push de - push bc - ld a, b - ld de, RAM_BGMFMInstr ; Store instrument ID - add e - ld e, a - PollPCM - call GetParam - PollPCM - ld a, b - ld (de), a - - ld a, e ; Reset volume - add 8 - ld e, a - xor a - ld (de), a - - ld e, c - pop bc - ld c, e - pop de - - PollPCM - - push hl ; Check if channel is free - ld a, b - ld h, RAM_Locked>>8 - add RAM_Locked&$FF - ld l, a - ld a, (hl) - pop hl - or a - jp nz, ProcessBGMSkip ; Don't load if locked - - PollPCM - - ld a, b ; Get back instrument ID - push hl - ld hl, RAM_BGMFMInstr - add l - ld l, a - ld b, (hl) - pop hl - - ex af, af' - PollPCM - ex af, af' - - call LoadFMDirect ; We're just a wrapper - jp ProcessBGMRun ; End of subroutine - -LoadFMEvent: - and $07 ; Get channel ID - - ex af, af' - PollPCM - call GetParam ; Get instrument ID - PollPCM - ex af, af' -LoadFMDirect: - - push af - and $04 ; Determine which port to write - rrca - ld iyl, a - PollPCM - pop af - - push bc - push de - push hl - - ld h, RAM_PointerList>>8 ; Get instrument address - ld l, b - ld d, (hl) - inc h - ld e, (hl) - inc h - ld c, (hl) - ex de, hl - - push af - PollPCM - - ld b, 28/4 ; Load FM instrument into our scratch buffer, - ld de, RAM_Scratch ; so we don't conflict with PCM bank -.getinstr: ; switch (which would slow down A LOT) - ld a, b - ex af, af' - call GetParam - ex de, hl - ld (hl), b - ex de, hl - inc e - call GetParam - ex de, hl - ld (hl), b - ex de, hl - inc e - call GetParam - ex de, hl - ld (hl), b - ex de, hl - inc e - call GetParam - ex de, hl - ld (hl), b - ex de, hl - inc e - ex af, af' - ld b, a - djnz .getinstr - call GetParam - ex de, hl - ld (hl), b - ex de, hl - - PollPCM - - pop af ; Kill ADSR - ld b, a - call KillFM - ld a, b - - ld de, RAM_FMData ; Get address of FM data - and $07 - add e - ld e, a - - push af - and $03 ; Register index for operator - add $B0 - - ld hl, RAM_Scratch ; Get address of buffer with the instrument - ; data - ex af, af' - PollPCM ; Write operator - ex af, af' - ld (iy+0), a - ld b, (hl) - inc l - ld (iy+1), b - - ex af, af' ; Store $B0 register in FM data buffer - ld a, b - ld (de), a - ld a, e - add 8 - ld e, a - PollPCM - ex af, af' - - sub $B0-$30 - - ex af, af' ; Write registers $30-$3C - PollPCM - ex af, af' - - ld (iy+0), a - ld b, (hl) - nop - ld (iy+1), b - add 4 - inc l - nop - - ld (iy+0), a - ld b, (hl) - nop - ld (iy+1), b - add 4 - inc l - nop - - ld (iy+0), a - ld b, (hl) - nop - ld (iy+1), b - add 4 - inc l - nop - - ld (iy+0), a - ld b, (hl) - nop - ld (iy+1), b - add 4 - inc l - nop - - ld b, 4 ; Write registers $40-$4C -.reg40: - ld c, a - push af - PollPCM - - ld (iy+0), c - ld a, (hl) - ld (de), a - ld (iy+1), a - ld a, e - add 8 - ld e, a - - pop af - add 4 - inc l - djnz .reg40 - - ld b, 20/4 ; Write registers $50-$5C -.reg50: - ex af, af' - PollPCM - ex af, af' - - ld (iy+0), a - ld c, (hl) - nop - ld (iy+1), c - add 4 - inc l - nop - - ld (iy+0), a - ld c, (hl) - nop - ld (iy+1), c - add 4 - inc l - nop - - ld (iy+0), a - ld c, (hl) - nop - ld (iy+1), c - add 4 - inc l - nop - - ld (iy+0), a - ld c, (hl) - nop - ld (iy+1), c - add 4 - inc l - - djnz .reg50 - - PollPCM - - ex de, hl - ld a, l - sub 8*6 - ld l, a - ld b, (hl) - add 8 - ld l, a - - PollPCM - - pop af - pop hl - pop de - pop bc - ret - -;**************************************************************************** -; SetFMVol* -; Sets the volume of a FM channel -;**************************************************************************** - -SetFMVolSFX: - call SetFMVolSFXEvent ; We're just a wrapper - jp ProcessSFXRun ; End of subroutine - -SetFMVolBGM: - and $07 - ld b, a - - PollPCM - - push de - push bc - ld a, b - ld d, RAM_BGMFMVol>>8 ; Store BGM volume - add RAM_BGMFMVol&$FF - ld e, a - PollPCM - call GetParam - PollPCM - ex de, hl - ld (hl), b - ex de, hl - ld e, c - pop bc - ld c, e - pop de - - PollPCM - - push hl - ld a, b ; Check if channel is free - ld hl, RAM_Locked - add l - ld l, a - ld a, (hl) - pop hl - or a - jp nz, ProcessBGMSkip ; Don't change if locked - - PollPCM - - ld a, b - push hl - ld hl, RAM_BGMFMVol - add l - ld l, a - ld b, (hl) - pop hl - - push af - PollPCM - pop af - - call SetFMVolLoad ; We're just a wrapper - jp ProcessBGMRun ; End of subroutine - -SetFMVolSFXEvent: - push af - PollPCM - call GetParam ; Get new volume - PollPCM - pop af - -SetFMVolLoad: - push bc - push de - push hl - - and $07 - - push af - ld h, RAM_FMData>>8 ; Get address of FM data - add RAM_FMData&$FF - ld l, a - - ex af, af' - PollPCM - ex af, af' - - and $04 ; Determine which port to write - rrca - ld iyl, a - PollPCM - pop af - - and $03 ; Index of first volume register - add $40 - ld c, a - - ld a, (hl) ; Get algorithm - and $07 - ld e, a - - PollPCM - - ld a, l - add 8 - ld l, a - ld a, e ; Process operator #1 - cp $07 - jr c, .noop1 - ld (iy+0), c - ld a, (hl) - add b - cp $7F - jr c, .notooloud1 - ld a, $7F -.notooloud1: - ld (iy+1), a -.noop1: - ld a, c - add 4 - ld c, a - - PollPCM - - ld a, l - add 8 - ld l, a - ld a, e ; Process operator #2 - cp $05 - jr c, .noop2 - ld (iy+0), c - ld a, (hl) - add b - cp $7F - jr c, .notooloud2 - ld a, $7F -.notooloud2: - ld (iy+1), a -.noop2: - ld a, c - add 4 - ld c, a - - PollPCM - - ld a, l - add 8 - ld l, a - ld a, e ; Process operator #3 - cp $04 - jr c, .noop3 - ld (iy+0), c - ld a, (hl) - add b - cp $7F - jr c, .notooloud3 - ld a, $7F -.notooloud3: - ld (iy+1), a -.noop3: - ld a, c - add 4 - ld c, a - - PollPCM - - ld a, l - add 8 - ld l, a - ld (iy+0), c - ld a, (hl) ; Process operator #4 - add b - cp $7F - jr c, .notooloud4 - ld a, $7F -.notooloud4: - ld (iy+1), a - - PollPCM - - pop hl - pop de - pop bc - ret ; End of subroutine - -;**************************************************************************** -; SetFMParam* -; Sets the different parameters of a FM channel -;**************************************************************************** - -SetFMParamSFX: - ld b, a - PollPCM - - ld a, b ; Determine which port to write - and $04 - rrca - ld iyl, a - - ld a, b - ex af, af' - PollPCM - call GetParam ; Get parameters - PollPCM - ex af, af' - - and $03 ; Get channel ID - add $B4 - ld (iy+0), a ; Set new parameters - ld (iy+1), b - - jp ProcessSFXRun ; End of subroutine - -SetFMParamBGM: - ld b, a - PollPCM - ld a, b - - ld a, b ; Determine which port to write - and $04 - rrca - ld iyl, a - - ex af, af' - PollPCM - call GetParam ; Get parameters - PollPCM - ex af, af' - - push hl - and $07 ; Store parameters - ld h, RAM_BGMFMPan>>8 - add RAM_BGMFMPan&$FF - ld l, h - ld (hl), b - - ex af, af' - PollPCM - ex af, af' - - and $07 ; Check if channel is free - add RAM_Locked&$FF - ld l, a - ex af, af' - ld a, (hl) - or a - pop hl - jp nz, ProcessBGMRun ; Don't modify if locked - - PollPCM - ex af, af' - - and $03 ; Get channel ID - add $B4 - ld (iy+0), a ; Set new parameters - ld (iy+1), b - - jp ProcessBGMRun ; End of subroutine - -;**************************************************************************** -; LockChannelFM [events $E0-$E7] -; Locks a FM channel -;**************************************************************************** - -LockChannelFM: - and $07 - ld b, a - PollPCM - - push hl - ld h, RAM_Locked>>8 ; Get address of channel to lock - ld a, b - add RAM_Locked&$FF - ld l, a - ld (hl), $01 ; Lock channel - pop hl - - PollPCM - - ld a, b ; Determine which port to write - and $04 - rrca - ld iyl, a - - ld a, b ; Reset FM parameters - and $03 - add a - add a - add $B4 - ld (iy+0), a - ld (iy+1), $C0 - - jp ProcessSFXRun ; End of subroutine - -;**************************************************************************** -; KillFM -; Kills a FM channel -;**************************************************************************** - -KillFM: - and $07 ; Get channel ID - - push af - push de - push hl - - ld c, a ; Determine to which port to write - and $04 - rrca - ld iyl, a - ld a, c - - and $03 ; Load dummy FM instrument - add $40 - ld c, 6 - ld hl, DummyFMInstr -.loaddummy: - ex af, af' - PollPCM - ex af, af' - ld e, (hl) - - ld (iy+0), a - add 4 - ld (iy+1), e - nop - ld (iy+0), a - add 4 - ld (iy+1), e - nop - ld (iy+0), a - add 4 - ld (iy+1), e - nop - ld (iy+0), a - add 4 - ld (iy+1), e - - inc l - dec c - jp nz, .loaddummy - - pop hl - pop de - PollPCM - pop af - - ld c, a ; Cause the ADSR to reset - or $F0 - ld (ix+0), $28 - ld (ix+1), c - ld (ix+0), $28 - ld (ix+1), a - ld (ix+0), $28 - ld (ix+1), c - - PollPCM - ret ; End of subroutine |