circuitpython/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))
run code formatting script 2021-03-15 09:57:36 -04:00			`@micropython.asm_thumb # test vcmp, vmrs`
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 2015-04-14 08:14:57 -04:00			`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)`

run code formatting script 2021-03-15 09:57:36 -04:00
			`print(f(0, 1))`
			`print(f(1, 1))`
			`print(f(1, 0))`