ref: 5f0597e944144763fed4275db45a433a235c4448
dir: /macros/scripts/audio.asm/
MACRO channel_count assert 0 < (\1) && (\1) <= NUM_MUSIC_CHANS, \ "channel_count must be 1-{d:NUM_MUSIC_CHANS}" DEF _num_channels = \1 - 1 ENDM MACRO channel assert 0 < (\1) && (\1) <= NUM_CHANNELS, \ "channel id must be 1-{d:NUM_CHANNELS}" dn (_num_channels << 2), \1 - 1 ; channel id dw \2 ; address DEF _num_channels = 0 ENDM MACRO note dn (\1), (\2) - 1 ; pitch, length ENDM MACRO drum_note note \1, \2 ; drum instrument, length ENDM MACRO rest note 0, \1 ; length ENDM MACRO square_note db \1 ; length if \3 < 0 dn \2, %1000 | (\3 * -1) ; volume envelope else dn \2, \3 ; volume envelope endc dw \4 ; frequency ENDM MACRO noise_note db \1 ; length if \3 < 0 dn \2, %1000 | (\3 * -1) ; volume envelope else dn \2, \3 ; volume envelope endc db \4 ; frequency ENDM ; MusicCommands indexes (see audio/engine.asm) const_def $d0 DEF FIRST_MUSIC_CMD EQU const_value const octave_cmd ; $d0 MACRO octave assert 1 <= (\1) && (\1) <= 8, "octave must be 1-8" db octave_cmd + 8 - (\1) ; octave ENDM const_skip 7 ; all octave values const note_type_cmd ; $d8 MACRO note_type db note_type_cmd db \1 ; note length if _NARG >= 2 if \3 < 0 dn \2, %1000 | (\3 * -1) ; volume envelope else dn \2, \3 ; volume envelope endc endc ENDM ; only valid on the noise channel MACRO drum_speed note_type \1 ; note length ENDM const transpose_cmd ; $d9 MACRO transpose db transpose_cmd dn \1, \2 ; num octaves, num pitches ENDM const tempo_cmd ; $da MACRO tempo db tempo_cmd bigdw \1 ; tempo ENDM const duty_cycle_cmd ; $db MACRO duty_cycle db duty_cycle_cmd db \1 ; duty cycle ENDM const volume_envelope_cmd ; $dc MACRO volume_envelope db volume_envelope_cmd if \2 < 0 dn \1, %1000 | (\2 * -1) ; volume envelope else dn \1, \2 ; volume envelope endc ENDM const pitch_sweep_cmd ; $dd MACRO pitch_sweep db pitch_sweep_cmd if \2 < 0 dn \1, %1000 | (\2 * -1) ; pitch sweep else dn \1, \2 ; pitch sweep endc ENDM const duty_cycle_pattern_cmd ; $de MACRO duty_cycle_pattern db duty_cycle_pattern_cmd db (\1 << 6) | (\2 << 4) | (\3 << 2) | (\4 << 0) ; duty cycle pattern ENDM const toggle_sfx_cmd ; $df MACRO toggle_sfx db toggle_sfx_cmd ENDM const pitch_slide_cmd ; $e0 MACRO pitch_slide db pitch_slide_cmd db \1 - 1 ; duration dn 8 - \2, \3 % 12 ; octave, pitch ENDM const vibrato_cmd ; $e1 MACRO vibrato db vibrato_cmd db \1 ; delay if _NARG > 2 dn \2, \3 ; extent, rate else db \2 ; LEGACY: Support for 1-arg extent endc ENDM const unknownmusic0xe2_cmd ; $e2 MACRO unknownmusic0xe2 db unknownmusic0xe2_cmd db \1 ; unknown ENDM const toggle_noise_cmd ; $e3 MACRO toggle_noise db toggle_noise_cmd if _NARG > 0 db \1 ; drum kit endc ENDM const force_stereo_panning_cmd ; $e4 MACRO force_stereo_panning db force_stereo_panning_cmd dn %1111 * (1 && \1), %1111 * (1 && \2) ; left enable, right enable ENDM const volume_cmd ; $e5 MACRO volume db volume_cmd if _NARG > 1 dn \1, \2 ; left volume, right volume else db \1 ; LEGACY: Support for 1-arg volume endc ENDM const pitch_offset_cmd ; $e6 MACRO pitch_offset db pitch_offset_cmd bigdw \1 ; pitch offset ENDM const unknownmusic0xe7_cmd ; $e7 MACRO unknownmusic0xe7 db unknownmusic0xe7_cmd db \1 ; unknown ENDM const unknownmusic0xe8_cmd ; $e8 MACRO unknownmusic0xe8 db unknownmusic0xe8_cmd db \1 ; unknown ENDM const tempo_relative_cmd ; $e9 MACRO tempo_relative db tempo_relative_cmd bigdw \1 ; tempo adjustment ENDM const restart_channel_cmd ; $ea MACRO restart_channel db restart_channel_cmd dw \1 ; address ENDM const new_song_cmd ; $eb MACRO new_song db new_song_cmd bigdw \1 ; id ENDM const sfx_priority_on_cmd ; $ec MACRO sfx_priority_on db sfx_priority_on_cmd ENDM const sfx_priority_off_cmd ; $ed MACRO sfx_priority_off db sfx_priority_off_cmd ENDM const unknownmusic0xee_cmd ; $ee MACRO unknownmusic0xee db unknownmusic0xee_cmd dw \1 ; address ENDM const stereo_panning_cmd ; $ef MACRO stereo_panning db stereo_panning_cmd dn %1111 * (1 && \1), %1111 * (1 && \2) ; left enable, right enable ENDM const sfx_toggle_noise_cmd ; $f0 MACRO sfx_toggle_noise db sfx_toggle_noise_cmd if _NARG > 0 db \1 ; drum kit endc ENDM const music0xf1_cmd ; $f1 MACRO music0xf1 db music0xf1_cmd ENDM const music0xf2_cmd ; $f2 MACRO music0xf2 db music0xf2_cmd ENDM const music0xf3_cmd ; $f3 MACRO music0xf3 db music0xf3_cmd ENDM const music0xf4_cmd ; $f4 MACRO music0xf4 db music0xf4_cmd ENDM const music0xf5_cmd ; $f5 MACRO music0xf5 db music0xf5_cmd ENDM const music0xf6_cmd ; $f6 MACRO music0xf6 db music0xf6_cmd ENDM const music0xf7_cmd ; $f7 MACRO music0xf7 db music0xf7_cmd ENDM const music0xf8_cmd ; $f8 MACRO music0xf8 db music0xf8_cmd ENDM const unknownmusic0xf9_cmd ; $f9 MACRO unknownmusic0xf9 db unknownmusic0xf9_cmd ENDM const set_condition_cmd ; $fa MACRO set_condition db set_condition_cmd db \1 ; condition ENDM const sound_jump_if_cmd ; $fb MACRO sound_jump_if db sound_jump_if_cmd db \1 ; condition dw \2 ; address ENDM const sound_jump_cmd ; $fc MACRO sound_jump db sound_jump_cmd dw \1 ; address ENDM const sound_loop_cmd ; $fd MACRO sound_loop db sound_loop_cmd db \1 ; count dw \2 ; address ENDM const sound_call_cmd ; $fe MACRO sound_call db sound_call_cmd dw \1 ; address ENDM const sound_ret_cmd ; $ff MACRO sound_ret db sound_ret_cmd ENDM