micropython/tests/inlineasm/asmfpmuldiv.py

@micropython.asm_thumb  # r0 = (int)(r0*r1/r2)
def muldiv(r0, r1, r2):
    vmov(s0, r0)
    vcvt_f32_s32(s0, s0)
    vmov(s1, r1)
    vcvt_f32_s32(s1, s1)
    vmov(s2, r2)
    vcvt_f32_s32(s2, s2)
    vmul(s7, s0, s1)
    vdiv(s8, s7, s2)
    vcvt_s32_f32(s31, s8)
    vmov(r0, s31)


print(muldiv(100, 10, 50))
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 2020-03-23 10:26:08 +08:00			`@micropython.asm_thumb # r0 = (int)(r0*r1/r2)`
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 20:14:57 +08:00			`def muldiv(r0, r1, r2):`
			`vmov(s0, r0)`
			`vcvt_f32_s32(s0, s0)`
			`vmov(s1, r1)`
			`vcvt_f32_s32(s1, s1)`
			`vmov(s2, r2)`
			`vcvt_f32_s32(s2, s2)`
			`vmul(s7, s0, s1)`
			`vdiv(s8, s7, s2)`
			`vcvt_s32_f32(s31, s8)`
			`vmov(r0, s31)`


tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 2020-03-23 10:26:08 +08:00			`print(muldiv(100, 10, 50))`