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comparison packages/hal/mips/arch/current/src/hal_misc.c @ 488:b3be5b1e1cfd

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* src/hal_misc.c (hal_delay_us): Use HAL_CLOCK_READ instead of inline asm, to allow for variant/platform HAL packages overriding.
author jlarmour
date Thu, 09 Jan 2003 06:34:12 +0000
parents d2c90368aeef
children
comparison
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487:7799e045560b 488:b3be5b1e1cfd
374 374
375 us -= us1; 375 us -= us1;
376 376
377 ticks = us1 * usticks; 377 ticks = us1 * usticks;
378 378
379 asm volatile("mfc0 %0,$9;" : "=r"(val1)); 379 HAL_CLOCK_READ(&val1);
380 while (ticks > 0) { 380 while (ticks > 0) {
381 do { 381 do {
382 asm volatile("mfc0 %0,$9;" : "=r"(val2)); 382 HAL_CLOCK_READ(&val2);
383 } while (val1 == val2); 383 } while (val1 == val2);
384 diff = val2 - val1; 384 diff = val2 - val1;
385 if (diff < 0) diff += CYGNUM_HAL_RTC_PERIOD; 385 if (diff < 0) diff += CYGNUM_HAL_RTC_PERIOD;
386 ticks -= diff; 386 ticks -= diff;
387 val1 = val2; 387 val1 = val2;