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circuitpython/tests/inlineasm/asmfpsqrt.py

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py/inlinethumb: Support for core floating point instructions. 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
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# test vsqrt, vneg
run code formatting script
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@micropython.asm_thumb # r0 = -(int)(sqrt(r0)*r1)
py/inlinethumb: Support for core floating point instructions. 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
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def sqrt_test(r0, r1):
vmov(s1, r0)
vcvt_f32_s32(s1, s1)
vsqrt(s1, s1)
vmov(s2, r1)
vcvt_f32_s32(s2, s2)
vmul(s0, s1, s2)
vneg(s7, s0)
vcvt_s32_f32(s31, s7)
vmov(r0, s31)
run code formatting script
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py/inlinethumb: Support for core floating point instructions. 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
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print(sqrt_test(256, 10))