5008972fef
Adds support for the following Thumb2 VFP instructions, via the option MICROPY_EMIT_INLINE_THUMB_FLOAT: vcmp vsqrt vneg vcvt_f32_to_s32 vcvt_s32_to_f32 vmrs vmov vldr vstr vadd vsub vmul vdiv
16 lines
309 B
Python
16 lines
309 B
Python
# 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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