void armv7a::asr_c(bits* result, uint32_t* carry_out, const bits& x, uint32_t shift)
{
pseudo_assert(shift > 0, "asr_c assert error");
//pseudo_assert(shift < 32, "asr_c assert error 2");
if(shift >= 32)
{
/*
if(x(x.n - 1) == 1)
{
result->val = mask(x.n - 1, 0);
}
else
{
result->val = 0;
}
result->n = x.n;
return;
*/
shift = 32;
}
//code modified by ufoderek
uint64_t extended_x = sign_extend64(x);
result->val = get_field64(extended_x, shift + x.n - 1, shift);
result->n = x.n;
*carry_out = get_bit(extended_x, shift - 1);
}
static void msr_event_update(struct perf_event *event)
{
u64 prev, now;
s64 delta;
/* Careful, an NMI might modify the previous event value. */
again:
prev = local64_read(&event->hw.prev_count);
now = msr_read_counter(event);
if (local64_cmpxchg(&event->hw.prev_count, prev, now) != prev)
goto again;
delta = now - prev;
if (unlikely(event->hw.event_base == MSR_SMI_COUNT))
delta = sign_extend64(delta, 31);
local64_add(delta, &event->count);
}
static void msr_event_update(struct perf_event *event)
{
u64 prev, now;
s64 delta;
/* Careful, an NMI might modify the previous event value: */
again:
prev = local64_read(&event->hw.prev_count);
now = msr_read_counter(event);
if (local64_cmpxchg(&event->hw.prev_count, prev, now) != prev)
goto again;
delta = now - prev;
if (unlikely(event->hw.event_base == MSR_SMI_COUNT)) {
delta = sign_extend64(delta, 31);
local64_add(delta, &event->count);
} else if (unlikely(event->hw.event_base == MSR_IA32_THERM_STATUS)) {
/* If valid, extract digital readout, otherwise set to -1: */
now = now & (1ULL << 31) ? (now >> 16) & 0x3f : -1;
local64_set(&event->count, now);
} else {
uint64_t armv7a::SInt(const bits& x)
{
return sign_extend64(x);
}
