File: asmfpsqrt.py

package info (click to toggle)
giac 1.9.0.93%2Bdfsg2-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 117,732 kB
  • sloc: cpp: 404,272; ansic: 205,462; python: 30,548; javascript: 28,788; makefile: 17,997; yacc: 2,690; lex: 2,464; sh: 705; perl: 314; lisp: 216; asm: 62; java: 41; xml: 36; sed: 16; csh: 7; pascal: 6
file content (15 lines) | stat: -rw-r--r-- 309 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
# 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))