lastFunction = funcIdx // avoid printing same function twice
		}

		if o.negative {
			fmt.Fprintf(&errbuf, "%s:%d: %s: wrong opcode found: %q\n", t.goFileName(), o.line, env, o.opcode.String())
		} else {
			fmt.Fprintf(&errbuf, "%s:%d: %s: opcode not found: %q\n", t.goFileName(), o.line, env, o.opcode.String())
		}
	}
	return errors.New(errbuf.String())
}

	}
	return printUint16(uint16(c))
}

// An OpCode is a DNS operation code.
type OpCode uint16

// GoString implements fmt.GoStringer.GoString.
func (o OpCode) GoString() string {
	return printUint16(uint16(o))
}

// An RCode is a DNS response status code.
type RCode uint16

// Header.RCode values.
const (
	RCodeSuccess        RCode = 0 // NoError
	RCodeFormatError    RCode = 1 // FormErr

	rIFEncoding   = encoding{encode: encodeRIF, validate: validateRIF, length: 4}
	rFFEncoding   = encoding{encode: encodeRFF, validate: validateRFF, length: 4}

	iIEncoding = encoding{encode: encodeII, validate: validateII, length: 4}
	iFEncoding = encoding{encode: encodeIF, validate: validateIF, length: 4}

	sIEncoding = encoding{encode: encodeSI, validate: validateSI, length: 4}

		return 0x0c1<<20 | 0x3<<15 // FCMP.SLT.S

	case ASQRTF:
		return 0x4511 << 10
	case ASQRTD:
		return 0x4512 << 10
	}

	if a < 0 {
		c.ctxt.Diag("bad rrr opcode -%v", -a)
	} else {
		c.ctxt.Diag("bad rrr opcode %v", a)
	}
	return 0
}

func (c *ctxt0) oprr(a obj.As) uint32 {
	switch a {
	case ACLO:
		return 0x4 << 10
	case ACLZ:
		return 0x5 << 10

		return SP(3, 7) | OP(44, 4)
	case ASEB:
		return SP(3, 7) | OP(132, 0)
	case ASEH:
		return SP(3, 7) | OP(196, 0)
	}

	if a < 0 {
		c.ctxt.Diag("bad rrr opcode -%v", -a)
	} else {
		c.ctxt.Diag("bad rrr opcode %v", a)
	}
	return 0
}

func (c *ctxt0) opirr(a obj.As) uint32 {
	switch a {
	case AADD:
		return SP(1, 0)
	case AADDU:
		return SP(1, 1)

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// This contains the majority of valid opcode combinations
// available in cmd/internal/obj/ppc64/asm9.go with
// their valid instruction encodings.

#include "../../../../../runtime/textflag.h"

// In case of index mode instructions, usage of
// (Rx)(R0) is equivalent to (Rx+R0)

			su.SetRelocAdd(rIdx, r.Add()+int64(ldr.SymGot(targ)))
		} else if targType == sym.STEXT {
			if isPLT16_LO_DS {
				// Expect an ld opcode to nop
				rewritetonop(target, ldr, su, int64(r.Off()), MASK_OP_LD, OP_LD)
			} else {
				// Expect an addis opcode to nop
				rewritetonop(target, ldr, su, int64(r.Off()), MASK_OP_ADDIS, OP_ADDIS)
			}
			// And we can ignore this reloc now.

	return fcb.encode()
}

// addFlags32 returns the flags that would be set from computing x+y.
func addFlags32(x, y int32) flagConstant {
	var fcb flagConstantBuilder
	fcb.Z = x+y == 0
	fcb.N = x+y < 0
	fcb.C = uint32(x+y) < uint32(x)
	fcb.V = x >= 0 && y >= 0 && x+y < 0 || x < 0 && y < 0 && x+y >= 0
	return fcb.encode()
}

// subFlags32 returns the flags that would be set from computing x-y.

		}

		pp := s.Call(v)

		// Convert the call into a blrl with hint this is not a subroutine return.
		// The full bclrl opcode must be specified when passing a hint.
		pp.As = ppc64.ABCL
		pp.From.Type = obj.TYPE_CONST
		pp.From.Offset = ppc64.BO_ALWAYS
		pp.Reg = ppc64.REG_CR0LT // The preferred value if BI is ignored.

func init() {
	decoderCover = make([]bool, len(instFormats))
}

// Decode decodes the 4 bytes in src as a single instruction.
func Decode(src []byte) (inst Inst, err error) {
	if len(src) < 4 {
		return Inst{}, errShort
	}

	x := binary.LittleEndian.Uint32(src)

Search:
	for i := range instFormats {
		f := &instFormats[i]
		if x&f.mask != f.value {
			continue
		}