sysregs.c
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/* -----------------------------------------------------------------------------
* Copyright (C) 2020 daiteq s.r.o. http://www.daiteq.com
*
* This program is distributed WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE.
*
* -----------------------------------------------------------------------------
* Filename : sysregs.c
* Authors : Martin Danek
* Description : system register definitions
* Release :
* Version : 1.0
* Date : 14.6.2020
* -----------------------------------------------------------------------------
*/
#include "asi.h"
#include "asm.h"
#include "sysregs.h"
void sysregs_init() {
wr_asr(SYSREGS_CTL_ASR, SYSREGS_RST);
wr_asr(SYSREGS_CTL_ASR, SYSREGS_START);
}
void sysregs_start() {
wr_asr(SYSREGS_CTL_ASR, SYSREGS_START);
}
void sysregs_stop() {
wr_asr(SYSREGS_CTL_ASR, SYSREGS_STOP);
}
void sysregs_read(unsigned *ticks_lo, unsigned *ticks_hi, unsigned *insns_lo, unsigned *insns_hi) {
wr_asr(SYSREGS_CTL_ASR, SYSREGS_TICKS_LO);
rd_asr(SYSREGS_CTL_ASR, *ticks_lo);
wr_asr(SYSREGS_CTL_ASR, SYSREGS_TICKS_HI);
rd_asr(SYSREGS_CTL_ASR, *ticks_hi);
wr_asr(SYSREGS_CTL_ASR, SYSREGS_INSNS_LO);
rd_asr(SYSREGS_CTL_ASR, *insns_lo);
wr_asr(SYSREGS_CTL_ASR, SYSREGS_INSNS_HI);
rd_asr(SYSREGS_CTL_ASR, *insns_hi);
}