75 lines
2.2 KiB
Ruby
75 lines
2.2 KiB
Ruby
# autogen f1 function for BMW
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header = <<EOF
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/* BEGIN of automatic generated code */
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static inline
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void bmw_small_f1(uint32_t* q, const void* m, const void* h){
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EOF
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footer = <<EOF
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}
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/* END of automatic generated code */
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EOF
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=begin
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uint32_t r;
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/* r = 0x05555555*(j+16); */
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r = ( ROTL32(((uint32_t*)m)[j], ((j+0))+1 )
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+ ROTL32(((uint32_t*)m)[(j+3)], ((j+3))+1 )
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- ROTL32(((uint32_t*)m)[(j+10)], ((j+10))+1 )
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+ k_lut[j]
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) ^ ((uint32_t*)h)[(j+7)];
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r += S32_1(q[j+ 0]) + S32_2(q[j+ 1]) + S32_3(q[j+ 2]) + S32_0(q[j+ 3]) +
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S32_1(q[j+ 4]) + S32_2(q[j+ 5]) + S32_3(q[j+ 6]) + S32_0(q[j+ 7]) +
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S32_1(q[j+ 8]) + S32_2(q[j+ 9]) + S32_3(q[j+10]) + S32_0(q[j+11]) +
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S32_1(q[j+12]) + S32_2(q[j+13]) + S32_3(q[j+14]) + S32_0(q[j+15]);
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=end
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def expand_1(j)
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s = sprintf("/* expand_1(%2d) */\n", j)
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s += sprintf("\tq[%2d] = \n", j+16)
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s += sprintf("\t\t(( ROTL32(((uint32_t*)m)[%2d], %d) \n", j%16, (j%16)+1)
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s += sprintf("\t\t + ROTL32(((uint32_t*)m)[%2d], %d) \n", (j+ 3)%16, ((j+ 3)%16)+1)
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s += sprintf("\t\t - ROTL32(((uint32_t*)m)[%2d], %d) \n", (j+10)%16, ((j+10)%16)+1)
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s += sprintf("\t\t + 0x%08xUL \n", 0x0555_5555*(16+j))
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s += sprintf("\t\t )^ ((uint32_t*)h)[%2d] \n", (j+7)%16)
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s += sprintf("\t\t)");
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(0..15).each do |x|
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s += (x%4==0)?"\n\t\t":" "
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s += sprintf("+ S32_%d(q[%2d])", (x+1)%4, x+j)
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end
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s += ';'
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return s
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end
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def expand_2(j)
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s = sprintf("/* expand_2(%2d) */\n", j)
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s += sprintf("\tq[%2d] = \n", j+16)
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s += sprintf("\t\t(( ROTL32(((uint32_t*)m)[%2d], %d) \n", j%16, (j%16)+1)
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s += sprintf("\t\t + ROTL32(((uint32_t*)m)[%2d], %d) \n", (j+ 3)%16, ((j+ 3)%16)+1)
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s += sprintf("\t\t - ROTL32(((uint32_t*)m)[%2d], %d) \n", (j+10)%16, ((j+10)%16)+1)
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s += sprintf("\t\t + 0x%08xUL \n", 0x0555_5555*(16+j))
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s += sprintf("\t\t )^ ((uint32_t*)h)[%2d] \n", (j+7)%16)
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s += sprintf("\t\t)");
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(0..13).each do |x|
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s += (x%4==0)?"\n\t\t":" "
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if x%2==0
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s += sprintf("+ q[%2d] ", x+j)
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else
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s += sprintf("+ R32_%d(q[%2d])", (x+1)/2, x+j)
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end
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end
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s += sprintf(" + S32_4(q[%2d]) + S32_5(q[%2d])", j+14, j+15)
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s += ';'
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return s
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end
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puts header
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(0..1).each {|x| puts expand_1(x)}
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(2..15).each {|x| puts expand_2(x)}
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puts footer |