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The stereo opcode variants have bit 1 of the command stream set. The polyphony is split into two parts: 1) polyphony, meaning that voices reuse the same opcodes; 2) multitrack voices, meaning that a track triggers more than voice. They both can be flexible defined in any combinations: for example voice 1 and 2 can be triggered by track 1 and use instrument 1, and voice 3 by track 2/instrument 2 and voice 4 by track 3/instrument 2. This is achieved through the use of bitmasks: in the aforementioned example, bit 1 of su_voicetrack_bitmask would be set, meaning "the voice after voice #1 will be triggered by the same track". On the other hand, bits 1 and 3 of su_polyphony_bitmask would be set to indicate that "the voices after #1 and #3 will reuse the same instruments".
29 lines
830 B
NASM
29 lines
830 B
NASM
%define BPM 100
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%define USE_SECTIONS
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%include "../src/sointu.inc"
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SU_BEGIN_PATTERNS
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PATTERN 64,HLD,HLD,HLD,HLD,HLD,HLD,HLD, 0, 0, 0,0,0,0,0,0,
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PATTERN 0, 0, 0, 0, 0, 0, 0, 0,64,HLD,HLD,0,0,0,0,0,
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SU_END_PATTERNS
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SU_BEGIN_TRACKS
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TRACK VOICES(1),0
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TRACK VOICES(1),1
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SU_END_TRACKS
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SU_BEGIN_PATCH
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SU_BEGIN_INSTRUMENT VOICES(1) ; Instrument0
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SU_ENVELOPE MONO,ATTAC(64),DECAY(64),SUSTAIN(64),RELEASE(80),GAIN(128)
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SU_ENVELOPE MONO,ATTAC(64),DECAY(64),SUSTAIN(64),RELEASE(80),GAIN(0)
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SU_OUT STEREO,GAIN(128)
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SU_END_INSTRUMENT
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SU_BEGIN_INSTRUMENT VOICES(1) ; Instrument1
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SU_ENVELOPE MONO,ATTAC(32),DECAY(32),SUSTAIN(64),RELEASE(80),GAIN(0)
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SU_ENVELOPE MONO,ATTAC(32),DECAY(32),SUSTAIN(64),RELEASE(80),GAIN(128)
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SU_OUT STEREO,GAIN(128)
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SU_END_INSTRUMENT
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SU_END_PATCH
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%include "../src/sointu.asm" |