micropython/tests/inlineasm/asmfpcmp.py

@micropython.asm_thumb      # test vcmp, vmrs
def f(r0, r1):
    vmov(s0, r0)
    vcvt_f32_s32(s0, s0)
    vmov(s1, r1)
    vcvt_f32_s32(s1, s1)
    vcmp(s1, s0)
    vmrs(r0, FPSCR)
    mov(r1, 28)
    lsr(r0, r1)

print(f(0,1))
print(f(1,1))
print(f(1,0))