// with the core of the assembler.

package arch

import (
	"cmd/internal/obj"
	"cmd/internal/obj/ppc64"
)

func jumpPPC64(word string) bool {
	switch word {
	case "BC", "BCL", "BEQ", "BGE", "BGT", "BL", "BLE", "BLT", "BNE", "BR", "BVC", "BVS", "BDNZ", "BDZ", "CALL", "JMP":
		return true
	}
	return false
}

// IsPPC64CMP reports whether the op (as defined by an ppc64.A* constant) is

	BL	-5(PC) // CALL -5(PC)      // f9ffffeb
	BL	jmp_label_2 // CALL        // 010000eb
	BL	jmp_label_2 // CALL        // 000000eb
	BL	jmp_label_2 // CALL        // ffffffeb
jmp_label_2:
	ADD	$0, R0, R0
	BL.EQ	jmp_label_2 // CALL.EQ 560 // fdffff0b
	BL.NE	jmp_label_2 // CALL.NE 560 // fcffff1b
	BL.CS	jmp_label_2 // CALL.CS 560 // fbffff2b
	BL.CC	jmp_label_2 // CALL.CC 560 // faffff3b
	BL.MI	jmp_label_2 // CALL.MI 560 // f9ffff4b

	}
	for i, s := range arm.Anames {
		if obj.As(i) >= obj.A_ARCHSPECIFIC {
			instructions[s] = obj.As(i) + obj.ABaseARM
		}
	}
	// Annoying aliases.
	instructions["B"] = obj.AJMP
	instructions["BL"] = obj.ACALL
	// MCR differs from MRC by the way fields of the word are encoded.
	// (Details in arm.go). Here we add the instruction so parse will find
	// it, but give it an opcode number known only to us.

	"DBW": arm.C_WBIT | arm.C_PBIT,
	"DAW": arm.C_WBIT,
	"IB":  arm.C_PBIT | arm.C_UBIT,
	"IA":  arm.C_UBIT,
	"DB":  arm.C_PBIT,
	"DA":  0,
}

var armJump = map[string]bool{
	"B":    true,
	"BL":   true,
	"BX":   true,
	"BEQ":  true,
	"BNE":  true,
	"BCS":  true,
	"BHS":  true,
	"BCC":  true,
	"BLO":  true,
	"BMI":  true,
	"BPL":  true,
	"BVS":  true,
	"BVC":  true,
	"BHI":  true,

	RET
	RET	foo(SB)

TEXT main·init(SB),DUPOK|NOSPLIT,$0 // TEXT main.init(SB), DUPOK|NOSPLIT, $0
	RET

TEXT main·main(SB),DUPOK|NOSPLIT,$0 // TEXT main.main(SB), DUPOK|NOSPLIT, $0
	BL      main·foo(SB)    // CALL main.foo(SB)

	CASPD	(R2, R3), (R2), (R8, R9)             // 487c2248

// RET
	RET
	RET	foo(SB)

// B/BL/B.cond cases, and canonical names JMP, CALL.
	BL	1(PC)      // CALL 1(PC)
	BL	(R2)       // CALL (R2)
	BL	foo(SB)    // CALL foo(SB)
	BL	bar<>(SB)  // CALL bar<>(SB)
	B	foo(SB)    // JMP foo(SB)
	BEQ	1(PC)
	BEQ	2(PC)
	TBZ	$1, R1, 2(PC)
	TBNZ	$2, R2, 2(PC)
	JMP	foo(SB)

import (
	"cmd/internal/obj"
	"cmd/internal/obj/arm64"
	"errors"
)

var arm64LS = map[string]uint8{
	"P": arm64.C_XPOST,
	"W": arm64.C_XPRE,
}

var arm64Jump = map[string]bool{
	"B":     true,
	"BL":    true,
	"BEQ":   true,
	"BNE":   true,
	"BCS":   true,
	"BHS":   true,
	"BCC":   true,
	"BLO":   true,
	"BMI":   true,
	"BPL":   true,
	"BVS":   true,
	"BVC":   true,
	"BHI":   true,