4 Copyright 2008-2012 Michel Pollet <buserror@gmail.com>
6 This file is part of simavr.
8 simavr is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 simavr is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with simavr. If not, see <http://www.gnu.org/licenses/>.
23 #ifndef __SIM_TIME_H___
24 #define __SIM_TIME_H___
32 // converts a number of usec to a number of machine cycles, at current speed
33 static inline avr_cycle_count_t avr_usec_to_cycles(struct avr_t * avr, uint32_t usec)
35 return avr->frequency * (avr_cycle_count_t)usec / 1000000;
38 // converts back a number of cycles to usecs (for usleep)
39 static inline uint32_t avr_cycles_to_usec(struct avr_t * avr, avr_cycle_count_t cycles)
41 return 1000000L * cycles / avr->frequency;
44 // converts back a number of cycles to nsecs
45 static inline uint64_t avr_cycles_to_nsec(struct avr_t * avr, avr_cycle_count_t cycles)
47 return (uint64_t)1E6 * (uint64_t)cycles / (avr->frequency/1000);
50 // converts a number of hz (to megahertz etc) to a number of cycle
51 static inline avr_cycle_count_t avr_hz_to_cycles(avr_t * avr, uint32_t hz)
53 return avr->frequency / hz;
60 #endif /* __SIM_TIME_H___ */