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June 8, 2015 14:15
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expapprox() compiled for Parallella Epiphany
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| // code From http://gallium.inria.fr/blog/fast-vectorizable-math-approx/ | |
| $ e-gcc compile options: -O3 -mno-soft-cmpsf -mcmove -mfp-mode=truncate | |
| // 73 clocks | |
| 00000f40 <_expapprox>: | |
| f40: 200b 0002 mov r1,0x0 | |
| f44: 476b 0aa2 mov r2,0xaa3b | |
| f48: 470b 14b2 movt r2,0x4b38 | |
| f4c: 2fcb 14e2 movt r1,0x4e7e | |
| f50: 200b 4002 mov r17,0x0 | |
| f54: 2137 fmadd r1,r0,r2 | |
| f56: 400b 0002 mov r2,0x0 | |
| f5a: 5feb 14e2 movt r2,0x4eff | |
| f5e: 0003 mov r0,0x0 | |
| f60: 300b 53f2 movt r17,0x3f80 | |
| f64: 0b0b 4482 mov r16,0x4858 | |
| f68: 6517 fsub r3,r1,r2 | |
| f6a: 016b 5bb2 movt r16,0xbb0b | |
| f6e: 97cb 29c2 mov r12,0x9cbe | |
| f72: 854b 33e2 movt r12,0x3e2a | |
| f76: 716b 0c02 mov r3,0xc08b | |
| f7a: 73eb 13e2 movt r3,0x3e9f | |
| f7e: 44d2 movblte r2,r1 | |
| f80: 28e2 mov r1,r2 | |
| f82: 4097 fsub r2,r0,r1 | |
| f84: 40ab 08d2 mov r2,0x8d05 | |
| f88: 404b 13f2 movt r2,0x3f02 | |
| f8c: 04d2 movblte r0,r1 | |
| f8e: 3feb 0ff2 mov r1,0xffff | |
| f92: 0067 fix r0,r0 | |
| f94: 2feb 1002 movt r1,0x7f | |
| f98: 20da and r1,r0,r1 | |
| f9a: 24ff 010a orr r1,r1,r17 | |
| f9e: 200b 4002 mov r17,0x0 | |
| fa2: 300b 57f2 movt r17,0x7f80 | |
| fa6: 00df 010a and r0,r0,r17 | |
| faa: 2eeb 4be2 mov r17,0xbe77 | |
| fae: 2bab 53c2 movt r17,0x3c5d | |
| fb2: 04bf 4807 fmadd r16,r17,r1 | |
| fb6: 80bf 2807 fmadd r12,r16,r1 | |
| fba: 70bf 0407 fmadd r3,r12,r1 | |
| fbe: 4cb7 fmadd r2,r3,r1 | |
| fc0: 0827 fmul r0,r2,r0 | |
| fc2: 194f 0402 rts | |
| fc6: 01a2 nop | |
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