debug/programs/run_halt_timing.S


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#if XLEN == 64
# define LREG ld
# define SREG sd
# define REGBYTES 8
#else
# define LREG lw
# define SREG sw
# define REGBYTES 4
#endif

#ifdef CLINT
#define MTIME_ADDR      CLINT + 0xbff8
#endif

        .global main
main:
        li      s0, 0
        li      s1, MTIME_ADDR
loop:
        addi    s0, s0, 1
        LREG    s2, 0(s1)
        j       loop