Files
micropython/tests/inlineasm/thumb/asmfpsqrt.py
Alessandro Gatti a5270c84cf tests/inlineasm: Make room for RV32IMC inline asm tests.
Thumb/Thumb2 tests are now into their own subdirectory, as
RV32IMC-specific tests will be added as part of the RV32 inline
assembler support.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
2025-01-01 10:44:50 +01:00

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Python

# test vsqrt, vneg
@micropython.asm_thumb # r0 = -(int)(sqrt(r0)*r1)
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)
print(sqrt_test(256, 10))