35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
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void compress_int4_weight(void *weight, void *out, int n, int m)
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{
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for(int i=0;i<n*m;i++)
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{
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(*(unsigned char*)(out)) = ((*(unsigned char*)(weight)) << 4);
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weight += sizeof(char);
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(*(unsigned char*)(out)) |= ((*(unsigned char*)(weight)) & 15);
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weight += sizeof(char);
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out += sizeof(char);
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}
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}
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void extract_int8_weight_to_float(void *weight, void *scale_list, void *out, int n, int m)
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{
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for(int i=0;i<n;i++)
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for(int j=0;j<m;j++)
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(*(float*)(out + sizeof(float) * (i * m + j))) = (*(float*)(scale_list + sizeof(float) * i)) * (*(char*)(weight + sizeof(char) * (i * m + j)));
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}
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void extract_int4_weight_to_float(void *weight, void *scale_list, void *out, int n, int m)
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{
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for(int i=0;i<n;i++)
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{
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for(int j=0;j<m;j++)
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{
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(*(float*)(out)) = (*(float*)(scale_list)) * ((*(char*)(weight)) >> 4);
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out += sizeof(float);
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(*(float*)(out)) = (*(float*)(scale_list)) * (((char)((*(unsigned char*)(weight)) << 4))>> 4);
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out += sizeof(float);
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weight += sizeof(char);
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}
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scale_list += sizeof(float);
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}
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}
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