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16 lines
309 B
16 lines
309 B
10 years ago
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# test vsqrt, vneg
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@micropython.asm_thumb # r0 = -(int)(sqrt(r0)*r1)
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def sqrt_test(r0, r1):
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vmov(s1, r0)
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vcvt_f32_s32(s1, s1)
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vsqrt(s1, s1)
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vmov(s2, r1)
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vcvt_f32_s32(s2, s2)
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vmul(s0, s1, s2)
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vneg(s7, s0)
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vcvt_s32_f32(s31, s7)
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vmov(r0, s31)
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print(sqrt_test(256, 10))
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