Comparing objdumps on the guix binary vs. my local binary, I suspect that the extension available on your CPU but not on mine is the AVX* instructions. I see that, e.g., VMOVAPS is used in your binary, but that is not available on my system. https://www.felixcloutier.com/x86/movaps some diff output: the guix build compared to my local build: 1,110c1,336 < 0000000000641a50 <_ZN5reSID17WaveformGeneratorC1Ev>: < 641a50: 80 3d 89 5a 38 01 00 cmpb $0x0,0x1385a89(%rip) # 19c74e0 <_ZZN5reSID17WaveformGeneratorC4EvE10class_init> < 641a57: 53 push %rbx < 641a58: 48 89 fb mov %rdi,%rbx < 641a5b: 0f 85 43 01 00 00 jne 641ba4 <_ZN5reSID17WaveformGeneratorC1Ev+0x154> < 641a61: c5 f8 28 1d 37 a0 09 vmovaps 0x9a037(%rip),%xmm3 # 6dbaa0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x860> < 641a68: 00 < 641a69: c5 78 28 1d af bf 03 vmovaps 0x3bfaf(%rip),%xmm11 # 67da20 < 641a70: 00 < 641a71: b8 40 d0 74 00 mov $0x74d040,%eax < 641a76: ba 40 f0 74 00 mov $0x74f040,%edx < 641a7b: c5 78 28 15 2d a0 09 vmovaps 0x9a02d(%rip),%xmm10 # 6dbab0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x870> < 641a82: 00 < 641a83: c5 f8 28 35 35 a0 09 vmovaps 0x9a035(%rip),%xmm6 # 6dbac0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x880> < 641a8a: 00 < 641a8b: c5 d8 57 e4 vxorps %xmm4,%xmm4,%xmm4 < 641a8f: c5 78 28 05 39 a0 09 vmovaps 0x9a039(%rip),%xmm8 # 6dbad0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x890> < 641a96: 00 < 641a97: c5 f8 28 3d 71 71 00 vmovaps 0x7171(%rip),%xmm7 # 648c10 < 641a9e: 00 < 641a9f: c5 f8 28 2d 39 a0 09 vmovaps 0x9a039(%rip),%xmm5 # 6dbae0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8a0> < 641aa6: 00 < 641aa7: c5 78 28 0d 41 a0 09 vmovaps 0x9a041(%rip),%xmm9 # 6dbaf0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8b0> < 641aae: 00 < 641aaf: 90 nop < 641ab0: c4 c1 61 fe d2 vpaddd %xmm10,%xmm3,%xmm2 < 641ab5: c4 c1 60 54 c0 vandps %xmm8,%xmm3,%xmm0 < 641aba: 48 83 c0 10 add $0x10,%rax < 641abe: c4 c1 68 54 c8 vandps %xmm8,%xmm2,%xmm1 < 641ac3: c5 f9 76 c4 vpcmpeqd %xmm4,%xmm0,%xmm0 < 641ac7: c5 f8 29 b0 f0 ff 00 vmovaps %xmm6,0xfff0(%rax) < 641ace: 00 < 641acf: c5 f8 29 70 f0 vmovaps %xmm6,-0x10(%rax) < 641ad4: c5 f1 76 cc vpcmpeqd %xmm4,%xmm1,%xmm1 < 641ad8: c5 f8 55 c7 vandnps %xmm7,%xmm0,%xmm0 < 641adc: c5 f8 29 b0 f0 7f 01 vmovaps %xmm6,0x17ff0(%rax) < 641ae3: 00 < 641ae4: c5 f8 29 b0 f0 7f 00 vmovaps %xmm6,0x7ff0(%rax) < 641aeb: 00 < 641aec: c5 f0 55 cf vandnps %xmm7,%xmm1,%xmm1 < 641af0: c5 d9 fa c0 vpsubd %xmm0,%xmm4,%xmm0 < 641af4: c5 d9 fa c9 vpsubd %xmm1,%xmm4,%xmm1 < 641af8: c5 f8 57 c3 vxorps %xmm3,%xmm0,%xmm0 < 641afc: c5 f0 57 ca vxorps %xmm2,%xmm1,%xmm1 < 641b00: c5 f9 72 d0 0b vpsrld $0xb,%xmm0,%xmm0 < 641b05: c5 d0 54 c0 vandps %xmm0,%xmm5,%xmm0 < 641b09: c5 e9 72 d2 0c vpsrld $0xc,%xmm2,%xmm2 < 641b0e: c5 f1 72 d1 0b vpsrld $0xb,%xmm1,%xmm1 < 641b13: c5 d0 54 c9 vandps %xmm1,%xmm5,%xmm1 < 641b17: c5 d0 54 d2 vandps %xmm2,%xmm5,%xmm2 < 641b1b: c4 e2 79 2b c9 vpackusdw %xmm1,%xmm0,%xmm1 < 641b20: c5 f9 72 d3 0c vpsrld $0xc,%xmm3,%xmm0 < 641b25: c5 d0 54 c0 vandps %xmm0,%xmm5,%xmm0 < 641b29: c4 c1 61 fe db vpaddd %xmm11,%xmm3,%xmm3 < 641b2e: c4 c1 70 54 c9 vandps %xmm9,%xmm1,%xmm1 < 641b33: c4 e2 79 2b d2 vpackusdw %xmm2,%xmm0,%xmm2 < 641b38: c5 f8 29 88 f0 1f 01 vmovaps %xmm1,0x11ff0(%rax) < 641b3f: 00 < 641b40: c5 f8 29 88 f0 1f 00 vmovaps %xmm1,0x1ff0(%rax) < 641b47: 00 < 641b48: c5 f8 29 90 f0 3f 01 vmovaps %xmm2,0x13ff0(%rax) < 641b4f: 00 < 641b50: c5 f8 29 90 f0 3f 00 vmovaps %xmm2,0x3ff0(%rax) < 641b57: 00 < 641b58: 48 39 c2 cmp %rax,%rdx < 641b5b: 0f 85 4f ff ff ff jne 641ab0 <_ZN5reSID17WaveformGeneratorC1Ev+0x60> < 641b61: c5 fb 10 05 97 9f 09 vmovsd 0x99f97(%rip),%xmm0 # 6dbb00 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8c0> < 641b68: 00 < 641b69: 31 d2 xor %edx,%edx < 641b6b: be 0c 00 00 00 mov $0xc,%esi < 641b70: bf e0 34 9c 01 mov $0x19c34e0,%edi < 641b75: c7 43 10 00 00 00 01 movl $0x1000000,0x10(%rbx) < 641b7c: e8 3f 21 00 00 callq 643cc0 <_ZN5reSID15build_dac_tableEPtidb> < 641b81: c5 fb 10 05 6f a1 01 vmovsd 0x1a16f(%rip),%xmm0 # 65bcf8 < 641b88: 00 < 641b89: ba 01 00 00 00 mov $0x1,%edx < 641b8e: be 0c 00 00 00 mov $0xc,%esi < 641b93: bf e0 54 9c 01 mov $0x19c54e0,%edi < 641b98: e8 23 21 00 00 callq 643cc0 <_ZN5reSID15build_dac_tableEPtidb> < 641b9d: c6 05 3c 59 38 01 01 movb $0x1,0x138593c(%rip) # 19c74e0 <_ZZN5reSID17WaveformGeneratorC4EvE10class_init> < 641ba4: 48 b8 ff 0f e0 0f ff movabs $0xfff0fff0fe00fff,%rax < 641bab: 0f ff 0f < 641bae: 48 89 1b mov %rbx,(%rbx) < 641bb1: c7 43 5c 00 00 00 00 movl $0x0,0x5c(%rbx) < 641bb8: 48 89 43 30 mov %rax,0x30(%rbx) < 641bbc: 48 b8 00 00 00 00 55 movabs $0x55500000000,%rax < 641bc3: 05 00 00 < 641bc6: c7 43 10 55 55 55 00 movl $0x555555,0x10(%rbx) < 641bcd: c6 43 14 00 movb $0x0,0x14(%rbx) < 641bd1: 48 c7 43 60 40 d0 74 movq $0x74d040,0x60(%rbx) < 641bd8: 00 < 641bd9: 48 c7 43 18 00 00 00 movq $0x0,0x18(%rbx) < 641be0: 00 < 641be1: 48 c7 43 20 fe ff 7f movq $0x7ffffe,0x20(%rbx) < 641be8: 00 < 641be9: 48 c7 43 28 00 00 00 movq $0x0,0x28(%rbx) < 641bf0: 00 < 641bf1: 66 c7 43 38 ff 0f movw $0xfff,0x38(%rbx) < 641bf7: 48 89 43 3c mov %rax,0x3c(%rbx) < 641bfb: 48 c7 43 44 00 00 00 movq $0x0,0x44(%rbx) < 641c02: 00 < 641c03: 48 c7 43 4c 00 00 00 movq $0x0,0x4c(%rbx) < 641c0a: 00 < 641c0b: 48 c7 43 54 00 00 00 movq $0x0,0x54(%rbx) < 641c12: 00 < 641c13: 5b pop %rbx < 641c14: c3 retq < 641c15: 90 nop < 641c16: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) < 641c1d: 00 00 00 --- > 641be0: 80 3d f9 78 38 01 00 cmpb $0x0,0x13878f9(%rip) # 19c94e0 <_ZZN5reSID17WaveformGeneratorC4EvE10class_init> > 641be7: 53 push %rbx > 641be8: 48 89 fb mov %rdi,%rbx > 641beb: 0f 85 dd 05 00 00 jne 6421ce <_ZN5reSID17WaveformGeneratorC1Ev+0x5ee> > 641bf1: 66 0f 6f 0d 87 be 09 movdqa 0x9be87(%rip),%xmm1 # 6dda80 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x860> > 641bf8: 00 > 641bf9: 66 44 0f 6f 0d fe dd movdqa 0x3ddfe(%rip),%xmm9 # 67fa00 > 641c00: 03 00 > 641c02: 66 0f ef db pxor %xmm3,%xmm3 > 641c06: 66 44 0f 6f 15 81 be movdqa 0x9be81(%rip),%xmm10 # 6dda90 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x870> > 641c0d: 09 00 > 641c0f: 66 0f 6f 05 89 be 09 movdqa 0x9be89(%rip),%xmm0 # 6ddaa0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x880> > 641c16: 00 > 641c17: 31 c9 xor %ecx,%ecx > 641c19: 66 0f 6f 35 8f be 09 movdqa 0x9be8f(%rip),%xmm6 # 6ddab0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x890> > 641c20: 00 > 641c21: 66 0f 6f 3d e7 8f 00 movdqa 0x8fe7(%rip),%xmm7 # 64ac10 > 641c28: 00 > 641c29: b8 40 f0 75 00 mov $0x75f040,%eax > 641c2e: 66 44 0f 6f 05 89 be movdqa 0x9be89(%rip),%xmm8 # 6ddac0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8a0> > 641c35: 09 00 > 641c37: 66 44 0f 6f 25 90 be movdqa 0x9be90(%rip),%xmm12 # 6ddad0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8b0> > 641c3e: 09 00 > 641c40: 66 44 0f 6f 1d 97 be movdqa 0x9be97(%rip),%xmm11 # 6ddae0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8c0> > 641c47: 09 00 > 641c49: c7 47 10 00 00 00 00 movl $0x0,0x10(%rdi) > 641c50: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) > 641c57: 00 00 00 00 > 641c5b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) > 641c60: 66 0f 6f e9 movdqa %xmm1,%xmm5 > 641c64: 66 0f 6f e1 movdqa %xmm1,%xmm4 > 641c68: 66 41 0f fe ea paddd %xmm10,%xmm5 > 641c6d: 66 0f db e6 pand %xmm6,%xmm4 > 641c71: 66 44 0f 6f ed movdqa %xmm5,%xmm13 > 641c76: 66 44 0f db ee pand %xmm6,%xmm13 > 641c7b: 66 44 0f 6f fb movdqa %xmm3,%xmm15 > 641c80: 66 0f 6f d1 movdqa %xmm1,%xmm2 > 641c84: 66 41 0f fe d1 paddd %xmm9,%xmm2 > 641c89: 66 0f 76 e3 pcmpeqd %xmm3,%xmm4 > 641c8d: 0f 29 00 movaps %xmm0,(%rax) > 641c90: 0f 0d 48 60 prefetchw 0x60(%rax) > 641c94: 66 44 0f 76 eb pcmpeqd %xmm3,%xmm13 > 641c99: 0f 0d 88 60 00 ff ff prefetchw -0xffa0(%rax) > 641ca0: 0f 0d 88 60 20 00 00 prefetchw 0x2060(%rax) > 641ca7: 66 0f df e7 pandn %xmm7,%xmm4 > 641cab: 0f 29 80 00 00 ff ff movaps %xmm0,-0x10000(%rax) > 641cb2: 0f 0d 88 60 20 ff ff prefetchw -0xdfa0(%rax) > 641cb9: 66 44 0f df ef pandn %xmm7,%xmm13 > 641cbe: 0f 0d 88 60 40 00 00 prefetchw 0x4060(%rax) > 641cc5: 0f 0d 88 60 40 ff ff prefetchw -0xbfa0(%rax) > 641ccc: 66 44 0f fa fc psubd %xmm4,%xmm15 > 641cd1: 66 41 0f 6f e7 movdqa %xmm15,%xmm4 > 641cd6: 66 44 0f 6f fb movdqa %xmm3,%xmm15 > 641cdb: 66 0f ef e1 pxor %xmm1,%xmm4 > 641cdf: 66 45 0f fa fd psubd %xmm13,%xmm15 > 641ce4: 66 45 0f 6f ef movdqa %xmm15,%xmm13 > 641ce9: 66 44 0f ef ed pxor %xmm5,%xmm13 > 641cee: 66 0f 72 d5 0c psrld $0xc,%xmm5 > 641cf3: 66 44 0f 6f fb movdqa %xmm3,%xmm15 > 641cf8: 66 0f 72 d4 0b psrld $0xb,%xmm4 > 641cfd: 66 44 0f 6f f4 movdqa %xmm4,%xmm14 > 641d02: 0f 29 80 00 80 00 00 movaps %xmm0,0x8000(%rax) > 641d09: 66 41 0f 72 d5 0b psrld $0xb,%xmm13 > 641d0f: 66 45 0f 69 f5 punpckhwd %xmm13,%xmm14 > 641d14: 66 41 0f 61 e5 punpcklwd %xmm13,%xmm4 > 641d19: 0f 29 80 00 80 ff ff movaps %xmm0,-0x8000(%rax) > 641d20: 0f 0d 88 60 80 00 00 prefetchw 0x8060(%rax) > 641d27: 0f 0d 88 60 80 ff ff prefetchw -0x7fa0(%rax) > 641d2e: 66 44 0f 6f ec movdqa %xmm4,%xmm13 > 641d33: 66 41 0f 61 e6 punpcklwd %xmm14,%xmm4 > 641d38: 66 45 0f 69 ee punpckhwd %xmm14,%xmm13 > 641d3d: 0f 29 40 10 movaps %xmm0,0x10(%rax) > 641d41: 48 89 c2 mov %rax,%rdx > 641d44: 48 83 c0 40 add $0x40,%rax > 641d48: 66 41 0f 61 e5 punpcklwd %xmm13,%xmm4 > 641d4d: 4c 8d 9a 40 00 ff ff lea -0xffc0(%rdx),%r11 > 641d54: 4c 8d 92 40 20 00 00 lea 0x2040(%rdx),%r10 > 641d5b: 0f 29 80 d0 ff fe ff movaps %xmm0,-0x10030(%rax) > 641d62: 4c 8d 8a 40 20 ff ff lea -0xdfc0(%rdx),%r9 > 641d69: 66 41 0f db e0 pand %xmm8,%xmm4 > 641d6e: 4c 8d 82 40 40 00 00 lea 0x4040(%rdx),%r8 > 641d75: 48 8d ba 40 40 ff ff lea -0xbfc0(%rdx),%rdi > 641d7c: 0f 29 80 d0 7f 00 00 movaps %xmm0,0x7fd0(%rax) > 641d83: 48 8d b2 40 80 00 00 lea 0x8040(%rdx),%rsi > 641d8a: 83 c1 04 add $0x4,%ecx > 641d8d: 48 81 ea c0 7f 00 00 sub $0x7fc0,%rdx > 641d94: 0f 29 a0 c0 1f 00 00 movaps %xmm4,0x1fc0(%rax) > 641d9b: 0f 29 a0 c0 1f ff ff movaps %xmm4,-0xe040(%rax) > 641da2: 66 0f 6f e1 movdqa %xmm1,%xmm4 > 641da6: 66 0f 72 d4 0c psrld $0xc,%xmm4 > 641dab: 66 44 0f 6f ec movdqa %xmm4,%xmm13 > 641db0: 66 0f 61 e5 punpcklwd %xmm5,%xmm4 > 641db4: 66 44 0f 69 ed punpckhwd %xmm5,%xmm13 > 641db9: 0f 29 80 d0 7f ff ff movaps %xmm0,-0x8030(%rax) > 641dc0: 66 0f 6f ec movdqa %xmm4,%xmm5 > 641dc4: 66 41 0f 61 e5 punpcklwd %xmm13,%xmm4 > 641dc9: 66 41 0f 69 ed punpckhwd %xmm13,%xmm5 > 641dce: 66 44 0f 6f e9 movdqa %xmm1,%xmm13 > 641dd3: 66 45 0f fe eb paddd %xmm11,%xmm13 > 641dd8: 66 45 0f 6f f5 movdqa %xmm13,%xmm14 > 641ddd: 66 0f 61 e5 punpcklwd %xmm5,%xmm4 > 641de1: 66 44 0f db f6 pand %xmm6,%xmm14 > 641de6: 66 0f 6f ea movdqa %xmm2,%xmm5 > 641dea: 66 0f db ee pand %xmm6,%xmm5 > 641dee: 0f 29 40 e0 movaps %xmm0,-0x20(%rax) > 641df2: 66 44 0f 76 f3 pcmpeqd %xmm3,%xmm14 > 641df7: 66 0f 76 eb pcmpeqd %xmm3,%xmm5 > 641dfb: 0f 29 a0 c0 3f 00 00 movaps %xmm4,0x3fc0(%rax) > 641e02: 66 44 0f df f7 pandn %xmm7,%xmm14 > 641e07: 66 0f df ef pandn %xmm7,%xmm5 > 641e0b: 0f 29 a0 c0 3f ff ff movaps %xmm4,-0xc040(%rax) > 641e12: 66 0f 6f e1 movdqa %xmm1,%xmm4 > 641e16: 66 41 0f fe e4 paddd %xmm12,%xmm4 > 641e1b: 66 44 0f fa fd psubd %xmm5,%xmm15 > 641e20: 66 41 0f 6f ef movdqa %xmm15,%xmm5 > 641e25: 66 44 0f 6f fb movdqa %xmm3,%xmm15 > 641e2a: 66 0f ef ea pxor %xmm2,%xmm5 > 641e2e: 66 45 0f fa fe psubd %xmm14,%xmm15 > 641e33: 66 45 0f ef fd pxor %xmm13,%xmm15 > 641e38: 66 0f 72 d2 0c psrld $0xc,%xmm2 > 641e3d: 66 41 0f 72 d5 0c psrld $0xc,%xmm13 > 641e43: 0f 29 80 e0 ff fe ff movaps %xmm0,-0x10020(%rax) > 641e4a: 66 41 0f 72 d7 0b psrld $0xb,%xmm15 > 641e50: 66 0f 72 d5 0b psrld $0xb,%xmm5 > 641e55: 66 44 0f 6f f5 movdqa %xmm5,%xmm14 > 641e5a: 66 41 0f 61 ef punpcklwd %xmm15,%xmm5 > 641e5f: 66 45 0f 69 f7 punpckhwd %xmm15,%xmm14 > 641e64: 66 44 0f 6f fd movdqa %xmm5,%xmm15 > 641e69: 66 41 0f 61 ee punpcklwd %xmm14,%xmm5 > 641e6e: 66 45 0f 69 fe punpckhwd %xmm14,%xmm15 > 641e73: 66 44 0f 6f f3 movdqa %xmm3,%xmm14 > 641e78: 66 41 0f 61 ef punpcklwd %xmm15,%xmm5 > 641e7d: 66 44 0f 6f fb movdqa %xmm3,%xmm15 > 641e82: 66 41 0f db e8 pand %xmm8,%xmm5 > 641e87: 0f 29 a8 d0 1f 00 00 movaps %xmm5,0x1fd0(%rax) > 641e8e: 0f 29 a8 d0 1f ff ff movaps %xmm5,-0xe030(%rax) > 641e95: 66 0f 6f ea movdqa %xmm2,%xmm5 > 641e99: 66 41 0f 61 d5 punpcklwd %xmm13,%xmm2 > 641e9e: 66 41 0f 69 ed punpckhwd %xmm13,%xmm5 > 641ea3: 66 44 0f 6f ea movdqa %xmm2,%xmm13 > 641ea8: 66 0f 61 d5 punpcklwd %xmm5,%xmm2 > 641eac: 66 44 0f 69 ed punpckhwd %xmm5,%xmm13 > 641eb1: 66 0f 6f ec movdqa %xmm4,%xmm5 > 641eb5: 66 0f db ee pand %xmm6,%xmm5 > 641eb9: 66 41 0f 61 d5 punpcklwd %xmm13,%xmm2 > 641ebe: 66 44 0f 6f 2d 39 bc movdqa 0x9bc39(%rip),%xmm13 # 6ddb00 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8e0> > 641ec5: 09 00 > 641ec7: 66 0f 76 eb pcmpeqd %xmm3,%xmm5 > 641ecb: 66 44 0f fe e9 paddd %xmm1,%xmm13 > 641ed0: 0f 29 90 d0 3f 00 00 movaps %xmm2,0x3fd0(%rax) > 641ed7: 66 0f df ef pandn %xmm7,%xmm5 > 641edb: 0f 29 90 d0 3f ff ff movaps %xmm2,-0xc030(%rax) > 641ee2: 66 0f 6f 15 06 bc 09 movdqa 0x9bc06(%rip),%xmm2 # 6ddaf0 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8d0> > 641ee9: 00 > 641eea: 66 44 0f fa f5 psubd %xmm5,%xmm14 > 641eef: 66 41 0f 6f ee movdqa %xmm14,%xmm5 > 641ef4: 66 45 0f 6f f5 movdqa %xmm13,%xmm14 > 641ef9: 66 44 0f db f6 pand %xmm6,%xmm14 > 641efe: 66 0f ef ec pxor %xmm4,%xmm5 > 641f02: 66 0f 72 d4 0c psrld $0xc,%xmm4 > 641f07: 66 0f fe d1 paddd %xmm1,%xmm2 > 641f0b: 66 44 0f 76 f3 pcmpeqd %xmm3,%xmm14 > 641f10: 66 0f 72 d5 0b psrld $0xb,%xmm5 > 641f15: 66 44 0f df f7 pandn %xmm7,%xmm14 > 641f1a: 66 45 0f fa fe psubd %xmm14,%xmm15 > 641f1f: 66 45 0f ef fd pxor %xmm13,%xmm15 > 641f24: 66 44 0f 6f f5 movdqa %xmm5,%xmm14 > 641f29: 66 41 0f 72 d5 0c psrld $0xc,%xmm13 > 641f2f: 66 41 0f 72 d7 0b psrld $0xb,%xmm15 > 641f35: 66 45 0f 69 f7 punpckhwd %xmm15,%xmm14 > 641f3a: 66 41 0f 61 ef punpcklwd %xmm15,%xmm5 > 641f3f: 66 44 0f 6f fd movdqa %xmm5,%xmm15 > 641f44: 66 41 0f 61 ee punpcklwd %xmm14,%xmm5 > 641f49: 66 45 0f 69 fe punpckhwd %xmm14,%xmm15 > 641f4e: 66 44 0f 6f f3 movdqa %xmm3,%xmm14 > 641f53: 66 41 0f 61 ef punpcklwd %xmm15,%xmm5 > 641f58: 66 44 0f 6f fb movdqa %xmm3,%xmm15 > 641f5d: 66 41 0f db e8 pand %xmm8,%xmm5 > 641f62: 0f 29 a8 e0 1f 00 00 movaps %xmm5,0x1fe0(%rax) > 641f69: 0f 29 a8 e0 1f ff ff movaps %xmm5,-0xe020(%rax) > 641f70: 66 0f 6f ec movdqa %xmm4,%xmm5 > 641f74: 66 41 0f 61 e5 punpcklwd %xmm13,%xmm4 > 641f79: 66 41 0f 69 ed punpckhwd %xmm13,%xmm5 > 641f7e: 66 44 0f 6f ec movdqa %xmm4,%xmm13 > 641f83: 66 0f 61 e5 punpcklwd %xmm5,%xmm4 > 641f87: 66 44 0f 69 ed punpckhwd %xmm5,%xmm13 > 641f8c: 66 41 0f 61 e5 punpcklwd %xmm13,%xmm4 > 641f91: 0f 29 a0 e0 3f 00 00 movaps %xmm4,0x3fe0(%rax) > 641f98: 0f 29 a0 e0 3f ff ff movaps %xmm4,-0xc020(%rax) > 641f9f: 66 0f 6f e2 movdqa %xmm2,%xmm4 > 641fa3: 66 0f db e6 pand %xmm6,%xmm4 > 641fa7: 0f 29 80 e0 7f 00 00 movaps %xmm0,0x7fe0(%rax) > 641fae: 66 0f 6f 2d 5a bb 09 movdqa 0x9bb5a(%rip),%xmm5 # 6ddb10 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x8f0> > 641fb5: 00 > 641fb6: 66 0f 76 e3 pcmpeqd %xmm3,%xmm4 > 641fba: 66 0f fe e9 paddd %xmm1,%xmm5 > 641fbe: 66 0f fe 0d 5a bb 09 paddd 0x9bb5a(%rip),%xmm1 # 6ddb20 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x900> > 641fc5: 00 > 641fc6: 66 44 0f 6f e9 movdqa %xmm1,%xmm13 > 641fcb: 66 44 0f db ee pand %xmm6,%xmm13 > 641fd0: 66 0f df e7 pandn %xmm7,%xmm4 > 641fd4: 0f 29 80 e0 7f ff ff movaps %xmm0,-0x8020(%rax) > 641fdb: 66 44 0f 76 eb pcmpeqd %xmm3,%xmm13 > 641fe0: 66 44 0f fa fc psubd %xmm4,%xmm15 > 641fe5: 66 41 0f 6f e7 movdqa %xmm15,%xmm4 > 641fea: 66 0f ef e2 pxor %xmm2,%xmm4 > 641fee: 66 0f 72 d2 0c psrld $0xc,%xmm2 > 641ff3: 0f 29 40 f0 movaps %xmm0,-0x10(%rax) > 641ff7: 66 44 0f df ef pandn %xmm7,%xmm13 > 641ffc: 66 0f 72 d4 0b psrld $0xb,%xmm4 > 642001: 0f 29 80 f0 ff fe ff movaps %xmm0,-0x10010(%rax) > 642008: 66 45 0f fa f5 psubd %xmm13,%xmm14 > 64200d: 66 45 0f 6f ee movdqa %xmm14,%xmm13 > 642012: 66 44 0f ef e9 pxor %xmm1,%xmm13 > 642017: 66 44 0f 6f f4 movdqa %xmm4,%xmm14 > 64201c: 66 0f 72 d1 0c psrld $0xc,%xmm1 > 642021: 0f 29 80 f0 7f 00 00 movaps %xmm0,0x7ff0(%rax) > 642028: 66 41 0f 72 d5 0b psrld $0xb,%xmm13 > 64202e: 66 45 0f 69 f5 punpckhwd %xmm13,%xmm14 > 642033: 66 41 0f 61 e5 punpcklwd %xmm13,%xmm4 > 642038: 0f 29 80 f0 7f ff ff movaps %xmm0,-0x8010(%rax) > 64203f: 66 44 0f 6f ec movdqa %xmm4,%xmm13 > 642044: 66 41 0f 61 e6 punpcklwd %xmm14,%xmm4 > 642049: 66 45 0f 69 ee punpckhwd %xmm14,%xmm13 > 64204e: 66 41 0f 61 e5 punpcklwd %xmm13,%xmm4 > 642053: 66 41 0f db e0 pand %xmm8,%xmm4 > 642058: 0f 29 a0 f0 1f 00 00 movaps %xmm4,0x1ff0(%rax) > 64205f: 0f 29 a0 f0 1f ff ff movaps %xmm4,-0xe010(%rax) > 642066: 66 0f 6f e2 movdqa %xmm2,%xmm4 > 64206a: 66 0f 61 d1 punpcklwd %xmm1,%xmm2 > 64206e: 66 0f 69 e1 punpckhwd %xmm1,%xmm4 > 642072: 66 0f 6f ca movdqa %xmm2,%xmm1 > 642076: 66 0f 69 d4 punpckhwd %xmm4,%xmm2 > 64207a: 66 0f 61 cc punpcklwd %xmm4,%xmm1 > 64207e: 66 0f 61 ca punpcklwd %xmm2,%xmm1 > 642082: 0f 29 88 f0 3f 00 00 movaps %xmm1,0x3ff0(%rax) > 642089: 0f 29 88 f0 3f ff ff movaps %xmm1,-0xc010(%rax) > 642090: 48 3d 00 10 76 00 cmp $0x761000,%rax > 642096: 66 0f 6f cd movdqa %xmm5,%xmm1 > 64209a: 0f 85 c0 fb ff ff jne 641c60 <_ZN5reSID17WaveformGeneratorC1Ev+0x80> > 6420a0: 66 0f ef e4 pxor %xmm4,%xmm4 > 6420a4: 31 c0 xor %eax,%eax > 6420a6: 66 90 xchg %ax,%ax > 6420a8: 66 0f 6f cd movdqa %xmm5,%xmm1 > 6420ac: 66 0f db ce pand %xmm6,%xmm1 > 6420b0: 66 0f 6f d5 movdqa %xmm5,%xmm2 > 6420b4: 66 0f 6f dc movdqa %xmm4,%xmm3 > 6420b8: 66 41 0f fe d2 paddd %xmm10,%xmm2 > 6420bd: 66 44 0f 6f e4 movdqa %xmm4,%xmm12 > 6420c2: 66 0f 76 cc pcmpeqd %xmm4,%xmm1 > 6420c6: 0f 29 80 00 10 76 00 movaps %xmm0,0x761000(%rax) > 6420cd: ff c1 inc %ecx > 6420cf: 66 0f df cf pandn %xmm7,%xmm1 > 6420d3: 41 0f 29 04 03 movaps %xmm0,(%r11,%rax,1) > 6420d8: 66 0f fa d9 psubd %xmm1,%xmm3 > 6420dc: 66 0f 6f cb movdqa %xmm3,%xmm1 > 6420e0: 66 0f 6f da movdqa %xmm2,%xmm3 > 6420e4: 66 0f db de pand %xmm6,%xmm3 > 6420e8: 66 0f ef cd pxor %xmm5,%xmm1 > 6420ec: 66 0f 76 dc pcmpeqd %xmm4,%xmm3 > 6420f0: 66 0f 72 d1 0b psrld $0xb,%xmm1 > 6420f5: 66 44 0f 6f d9 movdqa %xmm1,%xmm11 > 6420fa: 66 0f df df pandn %xmm7,%xmm3 > 6420fe: 66 44 0f fa e3 psubd %xmm3,%xmm12 > 642103: 66 41 0f 6f dc movdqa %xmm12,%xmm3 > 642108: 66 0f ef da pxor %xmm2,%xmm3 > 64210c: 66 0f 72 d2 0c psrld $0xc,%xmm2 > 642111: 66 0f 72 d3 0b psrld $0xb,%xmm3 > 642116: 66 44 0f 69 db punpckhwd %xmm3,%xmm11 > 64211b: 66 0f 61 cb punpcklwd %xmm3,%xmm1 > 64211f: 66 0f 6f d9 movdqa %xmm1,%xmm3 > 642123: 66 41 0f 61 cb punpcklwd %xmm11,%xmm1 > 642128: 66 41 0f 69 db punpckhwd %xmm11,%xmm3 > 64212d: 66 0f 61 cb punpcklwd %xmm3,%xmm1 > 642131: 66 41 0f db c8 pand %xmm8,%xmm1 > 642136: 41 0f 29 0c 02 movaps %xmm1,(%r10,%rax,1) > 64213b: 41 0f 29 0c 01 movaps %xmm1,(%r9,%rax,1) > 642140: 66 0f 6f cd movdqa %xmm5,%xmm1 > 642144: 66 0f 72 d1 0c psrld $0xc,%xmm1 > 642149: 66 0f 6f d9 movdqa %xmm1,%xmm3 > 64214d: 66 0f 61 ca punpcklwd %xmm2,%xmm1 > 642151: 66 0f 69 da punpckhwd %xmm2,%xmm3 > 642155: 66 41 0f fe e9 paddd %xmm9,%xmm5 > 64215a: 66 0f 6f d1 movdqa %xmm1,%xmm2 > 64215e: 66 0f 61 cb punpcklwd %xmm3,%xmm1 > 642162: 66 0f 69 d3 punpckhwd %xmm3,%xmm2 > 642166: 66 0f 61 ca punpcklwd %xmm2,%xmm1 > 64216a: 41 0f 29 0c 00 movaps %xmm1,(%r8,%rax,1) > 64216f: 0f 29 0c 07 movaps %xmm1,(%rdi,%rax,1) > 642173: 0f 29 04 06 movaps %xmm0,(%rsi,%rax,1) > 642177: 0f 29 04 02 movaps %xmm0,(%rdx,%rax,1) > 64217b: 48 83 c0 10 add $0x10,%rax > 64217f: 81 f9 ff 01 00 00 cmp $0x1ff,%ecx > 642185: 0f 86 1d ff ff ff jbe 6420a8 <_ZN5reSID17WaveformGeneratorC1Ev+0x4c8> > 64218b: f2 0f 10 05 9d b9 09 movsd 0x9b99d(%rip),%xmm0 # 6ddb30 <_ZZ21_vte_boa_advance_tailE19__PRETTY_FUNCTION__+0x910> > 642192: 00 > 642193: 31 d2 xor %edx,%edx > 642195: be 0c 00 00 00 mov $0xc,%esi > 64219a: bf e0 54 9c 01 mov $0x19c54e0,%edi > 64219f: c7 43 10 00 00 00 01 movl $0x1000000,0x10(%rbx) > 6421a6: e8 b5 2e 00 00 callq 645060 <_ZN5reSID15build_dac_tableEPtidb> > 6421ab: f2 0f 10 05 45 bb 01 movsd 0x1bb45(%rip),%xmm0 # 65dcf8 > 6421b2: 00 > 6421b3: ba 01 00 00 00 mov $0x1,%edx > 6421b8: be 0c 00 00 00 mov $0xc,%esi > 6421bd: bf e0 74 9c 01 mov $0x19c74e0,%edi > 6421c2: e8 99 2e 00 00 callq 645060 <_ZN5reSID15build_dac_tableEPtidb> > 6421c7: c6 05 12 73 38 01 01 movb $0x1,0x1387312(%rip) # 19c94e0 <_ZZN5reSID17WaveformGeneratorC4EvE10class_init> > 6421ce: 48 b8 ff 0f e0 0f ff movabs $0xfff0fff0fe00fff,%rax > 6421d5: 0f ff 0f > 6421d8: 48 89 1b mov %rbx,(%rbx) > 6421db: c7 43 5c 00 00 00 00 movl $0x0,0x5c(%rbx) > 6421e2: 48 89 43 30 mov %rax,0x30(%rbx) > 6421e6: 48 b8 00 00 00 00 55 movabs $0x55500000000,%rax > 6421ed: 05 00 00 > 6421f0: c7 43 10 55 55 55 00 movl $0x555555,0x10(%rbx) > 6421f7: c6 43 14 00 movb $0x0,0x14(%rbx) > 6421fb: 48 c7 43 60 40 f0 74 movq $0x74f040,0x60(%rbx) > 642202: 00 > 642203: 48 c7 43 18 00 00 00 movq $0x0,0x18(%rbx) > 64220a: 00 > 64220b: 48 c7 43 20 fe ff 7f movq $0x7ffffe,0x20(%rbx) > 642212: 00 > 642213: 48 c7 43 28 00 00 00 movq $0x0,0x28(%rbx) > 64221a: 00 > 64221b: 66 c7 43 38 ff 0f movw $0xfff,0x38(%rbx) > 642221: 48 89 43 3c mov %rax,0x3c(%rbx) > 642225: 48 c7 43 44 00 00 00 movq $0x0,0x44(%rbx) > 64222c: 00 > 64222d: 48 c7 43 4c 00 00 00 movq $0x0,0x4c(%rbx) > 642234: 00 > 642235: 48 c7 43 54 00 00 00 movq $0x0,0x54(%rbx) > 64223c: 00 > 64223d: 5b pop %rbx > 64223e: c3 retq > 64223f: 90 nop -- Christopher Howard blog: https://librehacker.com social: https://gnusocial.club/librehacker