fork download 
  1.             asm volatile (
  2.                 "    sbi %[tifr],1<<%[ocf_bit]\n"
  3.                 "    lds %A[now_low],%[tcnt]+0\n"
  4.                 "    lds %B[now_low],%[tcnt]+1\n"
  5.                 "    in %[tifr_var],%[tifr1]\n"
  6.                 "    andi %[tifr_var],1<<%[tov]\n"
  7.                 "    breq no_overflow_%=\n"
  8.                 "    subi %A[now_high],-1\n"
  9.                 "    sbci %B[now_high],-1\n"
  10.                 "    lds %A[now_low],%[tcnt]+0\n"
  11.                 "    lds %B[now_low],%[tcnt]+1\n"
  12.                 "no_overflow_%=:\n"
  13.                 "    sub %A[time_plus_past],%A[now_low]\n"
  14.                 "    sbc %B[time_plus_past],%B[now_low]\n"
  15.                 "    sbc %C[time_plus_past],%A[now_high]\n"
  16.                 "    sbc %D[time_plus_past],%B[now_high]\n"
  17.                 "    sub %A[time_plus_past],%A[clearance_plus_past]\n"
  18.                 "    sbc %B[time_plus_past],%B[clearance_plus_past]\n"
  19.                 "    sbc %C[time_plus_past],%C[clearance_plus_past]\n"
  20.                 "    sbc %D[time_plus_past],%D[clearance_plus_past]\n"
  21.                 "    brcc no_saturation_%=\n"
  22.                 "    sub %A[time],%A[time_plus_past]\n"
  23.                 "    sbc %B[time],%B[time_plus_past]\n"
  24.                 "    sbc %C[time],%C[time_plus_past]\n"
  25.                 "    sbc %D[time],%D[time_plus_past]\n"
  26.                 "no_saturation_%=:\n"
  27.                 "    sts %[ocr]+1,%B[time]\n"
  28.                 "    sts %[ocr]+0,%A[time]\n"
  29.                 "    lds %[tifr_var],%[timsk]\n"
  30.                 "    ori %[tifr_var],1<<%[ocie_bit]\n"
  31.                 "    sts %[timsk],%[tifr_var]\n"
  32.  
  33.                 : [now_low] "=&r" (now_low),
  34.                   [now_high] "=&a" (now_high),
  35.                   [tifr_var] "=&a" (tifr_var),
  36.                   [time_plus_past] "=&r" (time_plus_past),
  37.                   [time] "=&r" (time)
  38.                 : "[now_high]" (now_high),
  39.                   "[time_plus_past]" (time_plus_past),
  40.                   "[time]" (time),
  41.                   [clearance_plus_past] "r" (clearance_plus_past),
  42.                   [tcnt] "n" (_SFR_MEM_ADDR(TCNT1)),
  43.                   [tifr1] "I" (_SFR_IO_ADDR(TIFR1)),
  44.                   [tov] "n" (TOV1),
  45.                   [ocr] "n" (ocr_reg + __SFR_OFFSET),
  46.                   [timsk] "n" (timsk_reg + __SFR_OFFSET),
  47.                   [ocie_bit] "n" (ocie_bit),
  48.                   [tifr] "I" (tifr_reg),
  49.                   [ocf_bit] "n" (ocf_bit)
  50.             );
Not running #stdin #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/Nl6OiH
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!