5008972fef
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
16 lines
311 B
Python
16 lines
311 B
Python
@micropython.asm_thumb # r0 = r0+r1-r2
|
|
def add_sub(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)
|
|
vadd(s0, s0, s1)
|
|
vsub(s0, s0, s2)
|
|
vcvt_s32_f32(s31, s0)
|
|
vmov(r0, s31)
|
|
|
|
print(add_sub(100, 20, 30))
|
|
|