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Change var names
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40
sounds.h
40
sounds.h
@ -38,9 +38,9 @@
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struct
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{ // all should be initialized to 0
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uint8_t track;
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uint32_t t;
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uint32_t t2;
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uint32_t n11t;
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uint32_t t; // time variable/parameter
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uint32_t t2; // stores t squared, for better performance
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uint32_t n11t; // stores a multiple of 11, for better performance
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} SFG_MusicState;
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/**
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@ -63,41 +63,41 @@ uint8_t SFG_getNextMusicSample()
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uint32_t result;
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#define t SFG_MusicState.t
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#define t2 SFG_MusicState.t2
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#define n11t SFG_MusicState.n11t
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#define T SFG_MusicState.t
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#define T2 SFG_MusicState.t2
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#define N11T SFG_MusicState.n11t
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switch (SFG_MusicState.track) // individual music tracks
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{
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case 0:
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{
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uint32_t a = ((t >> 7) | (t >> 9) | (~t << 1) | t);
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result = ((t) & 65536 ? (a & (((t2) >> 16) & 0x09)) : ~a);
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uint32_t a = ((T >> 7) | (T >> 9) | (~T << 1) | T);
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result = ((T) & 65536 ? (a & (((T2) >> 16) & 0x09)) : ~a);
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t2 += t;
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SFG_MusicState.t2 += T;
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break;
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}
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case 1:
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{
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result = (t & (3 << (((t >> 10) ^ ((t >> 10) << (t >> 6))))));
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result = (T & (3 << (((T >> 10) ^ ((T >> 10) << (T >> 6))))));
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break;
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}
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case 2:
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{
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result =
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~((((t >> (t >> 2)) | (t >> (t >> 5))) & 0x12) << 1) | (t >> 11);
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result = ~((((T >> (T >> 2)) | (T >> (T >> 5))) & 0x12) << 1) | (T >> 11);
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break;
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}
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case 3:
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{
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result =
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((((t >> (t >> 2)) + (t >> (t >> 7)))) & 0x3f | (t >> 5) | (t >> 11))
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& (t & (32768 | 8192) ? 0xf0 : 0x30);
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((((T >> (T >> 2)) + (T >> (T >> 7)))) & 0x3f | (T >> 5) | (T >> 11))
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& (T & (32768 | 8192) ? 0xf0 : 0x30);
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break;
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}
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@ -105,20 +105,20 @@ uint8_t SFG_getNextMusicSample()
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case 4:
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{
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result =
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((0x47 >> (t >> 9)) & (t >> t)) | (0x57 >> (t >> 7)) |
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(0x06 >> (t >> (((n11t) >> 14) & 0x0e)));
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((0x47 >> (T >> 9)) & (T >> T)) | (0x57 >> (T >> 7)) |
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(0x06 >> (T >> (((N11T) >> 14) & 0x0e)));
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n11t += 11;
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SFG_MusicState.n11t += 11;
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break;
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}
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case 5:
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{
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uint32_t a = t >> (t >> 6);
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uint32_t b = 0x011121 >> ((a + t) >> 11);
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uint32_t a = T >> (T >> 6);
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uint32_t b = 0x011121 >> ((a + T) >> 11);
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result =
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(((t >> 9) + (t ^ (t << 1))) & (0x7f >> ((t >> 15) & 0x03))) & (b + a);
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(((T >> 9) + (T ^ (T << 1))) & (0x7f >> ((T >> 15) & 0x03))) & (b + a);
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break;
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}
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