}

# Sets an EXIT trap.
# Args:
#   $1:... : the trap command.
#
# NOTE: this function is duplicated in configure.sh, any changes here should be
# duplicated there as well.
function log-trap-push {
  local t="${*:1}"
  LOG_TRAP_STACK+=("${t}")
  # shellcheck disable=2064
  trap "${t}" EXIT
}

# Removes and restores an EXIT trap.
#

	op_CLGRL   uint32 = 0xC60A // FORMAT_RIL2       COMPARE LOGICAL RELATIVE LONG (64)
	op_CLGRT   uint32 = 0xB961 // FORMAT_RRF3       COMPARE LOGICAL AND TRAP (64)
	op_CLGT    uint32 = 0xEB2B // FORMAT_RSY2       COMPARE LOGICAL AND TRAP (64)
	op_CLGXBR  uint32 = 0xB3AE // FORMAT_RRF5       CONVERT TO LOGICAL (extended BFP to 64)
	op_CLGXTR  uint32 = 0xB94A // FORMAT_RRF5       CONVERT TO LOGICAL (extended DFP to 64)

	SIGPIPE = Signal(0xd)
	SIGALRM = Signal(0xe)
	SIGTERM = Signal(0xf)
)

var signals = [...]string{
	1:  "hangup",
	2:  "interrupt",
	3:  "quit",
	4:  "illegal instruction",
	5:  "trace/breakpoint trap",
	6:  "aborted",
	7:  "bus error",
	8:  "floating point exception",
	9:  "killed",
	10: "user defined signal 1",
	11: "segmentation fault",
	12: "user defined signal 2",
	13: "broken pipe",
	14: "alarm clock",

// Reports errors via ctxt.
func avx2gatherValid(ctxt *obj.Link, p *obj.Prog) bool {
	// If any pair of the index, mask, or destination registers
	// are the same, illegal instruction trap (#UD) is triggered.
	index := regIndex(p.GetFrom3().Index)
	mask := regIndex(p.From.Reg)
	dest := regIndex(p.To.Reg)
	if dest == mask || dest == index || mask == index {

	}
	lock(&sched.gFree.lock)
	sched.gFree.noStack.pushAll(noStackQ)
	sched.gFree.stack.pushAll(stackQ)
	sched.gFree.n += inc
	unlock(&sched.gFree.lock)
}

// Breakpoint executes a breakpoint trap.
func Breakpoint() {
	breakpoint()
}

// dolockOSThread is called by LockOSThread and lockOSThread below
// after they modify m.locked. Do not allow preemption during this call,

		} else if p.From.Type == obj.TYPE_REG {
			o1 = LOP_RRR(OP_OR, REGZERO, uint32(p.From.Reg), uint32(p.From.Reg))
		} else {
			c.ctxt.Diag("illegal syscall: %v", p)
			o1 = 0x7fe00008 // trap always
		}

		o2 = c.oprrr(p.As)
		o3 = AOP_RRR(c.oprrr(AXOR), REGZERO, REGZERO, REGZERO) // XOR R0, R0

	case 78: /* undef */
		o1 = 0 /* "An instruction consisting entirely of binary 0s is guaranteed

observing it more curiously, I saw within it several smaller round Spots, which appeared much blacker and darker than the rest, whereby I knew that there was some Reflexion at the other places which were not so dark as those Spots. And by farther Tryal I found that I could see the Images of some things (as of a Candle or the Sun) very faintly reflected, not only from the great black Spot, but also from the little darker Spots which were within it. Besides the aforesaid colour'd Rings there would...