MOVD	b_len+32(FP), R6
	LA	ret+48(FP), R7
	BR	cmpbody<>(SB)

TEXT runtime·cmpstring(SB),NOSPLIT|NOFRAME,$0-40
	MOVD	a_base+0(FP), R3
	MOVD	a_len+8(FP), R4
	MOVD	b_base+16(FP), R5
	MOVD	b_len+24(FP), R6
	LA	ret+32(FP), R7
	BR	cmpbody<>(SB)

// input:
//   R3 = a
//   R4 = alen
//   R5 = b
//   R6 = blen
//   R7 = address of output word (stores -1/0/1 here)
TEXT cmpbody<>(SB),NOSPLIT|NOFRAME,$0-0

	MOVV	R7, R6
	MOVV	R8, R7
	JMP	cmpbody<>(SB)

TEXT runtime·cmpstring<ABIInternal>(SB),NOSPLIT,$0-40
	// R4 = a_base
	// R5 = a_len
	// R6 = b_base
	// R7 = b_len
	JMP	cmpbody<>(SB)

// On entry:
// R5 length of a
// R7 length of b
// R4 points to the start of a
// R6 points to the start of b
// R13 points to the return value (-1/0/1)
TEXT cmpbody<>(SB),NOSPLIT|NOFRAME,$0

	I64Load b_base+24(FP)
	I64Load b_len+32(FP)
	Call cmpbody<>(SB)
	I64Store ret+48(FP)
	RET

TEXT runtime·cmpstring(SB), NOSPLIT, $0-40
	Get SP
	I64Load a_base+0(FP)
	I64Load a_len+8(FP)
	I64Load b_base+16(FP)
	I64Load b_len+24(FP)
	Call cmpbody<>(SB)
	I64Store ret+32(FP)
	RET

// params: a, alen, b, blen
// ret: -1/0/1
TEXT cmpbody<>(SB), NOSPLIT, $0-0
	// len = min(alen, blen)
	Get R1
	Get R3

	MOVL	b_len+16(FP), DX
	LEAL	ret+24(FP), AX
	JMP	cmpbody<>(SB)

TEXT runtime·cmpstring(SB),NOSPLIT,$0-20
	MOVL	a_base+0(FP), SI
	MOVL	a_len+4(FP), BX
	MOVL	b_base+8(FP), DI
	MOVL	b_len+12(FP), DX
	LEAL	ret+16(FP), AX
	JMP	cmpbody<>(SB)

// input:
//   SI = a
//   DI = b
//   BX = alen
//   DX = blen
//   AX = address of return word (set to 1/0/-1)
TEXT cmpbody<>(SB),NOSPLIT,$0-0
	MOVL	DX, BP

	MOVV	a_base+0(FP), R3
	MOVV	b_base+24(FP), R4
	MOVV	a_len+8(FP), R1
	MOVV	b_len+32(FP), R2
	MOVV	$ret+48(FP), R9
	JMP	cmpbody<>(SB)

TEXT runtime·cmpstring(SB),NOSPLIT,$0-40
	MOVV	a_base+0(FP), R3
	MOVV	b_base+16(FP), R4
	MOVV	a_len+8(FP), R1
	MOVV	b_len+24(FP), R2
	MOVV	$ret+32(FP), R9
	JMP	cmpbody<>(SB)

// On entry:
// R1 length of a
// R2 length of b
// R3 points to the start of a
// R4 points to the start of b

	MOVW	a_base+0(FP), R2
	MOVW	a_len+4(FP), R0
	MOVW	b_base+12(FP), R3
	MOVW	b_len+16(FP), R1
	ADD	$28, R13, R7
	B	cmpbody<>(SB)

TEXT runtime·cmpstring(SB),NOSPLIT|NOFRAME,$0-20
	MOVW	a_base+0(FP), R2
	MOVW	a_len+4(FP), R0
	MOVW	b_base+8(FP), R3
	MOVW	b_len+12(FP), R1
	ADD	$20, R13, R7
	B	cmpbody<>(SB)

// On entry:
// R0 is the length of a
// R1 is the length of b
// R2 points to the start of a

	// R2 = a_cap  (unused)
	// R3 = b_base (want in R2)
	// R4 = b_len  (want in R3)
	// R5 = b_cap  (unused)
	MOVD	R3, R2
	MOVD	R4, R3
	B	cmpbody<>(SB)

TEXT runtime·cmpstring<ABIInternal>(SB),NOSPLIT|NOFRAME,$0-40
	// R0 = a_base
	// R1 = a_len
	// R2 = b_base
	// R3 = b_len
	B	cmpbody<>(SB)

// On entry:
// R0 points to the start of a
// R1 is the length of a
// R2 points to the start of b
// R3 is the length of b

	// SI = b_len  (want in DX)
	// R8 = b_cap  (unused)
	MOVQ	SI, DX
	MOVQ	AX, SI
	JMP	cmpbody<>(SB)

TEXT runtime·cmpstring<ABIInternal>(SB),NOSPLIT,$0-40
	// AX = a_base (want in SI)
	// BX = a_len  (want in BX)
	// CX = b_base (want in DI)
	// DI = b_len  (want in DX)
	MOVQ	AX, SI
	MOVQ	DI, DX
	MOVQ	CX, DI
	JMP	cmpbody<>(SB)

// input:
//   SI = a
//   DI = b
//   BX = alen
//   DX = blen
// output:

	// R3 a addr
	// R4 a len
	// R6 b addr
	// R7 b len
	//
	// on entry to cmpbody:
	// R3 return value if len(a) == len(b)
	// R5 a addr
	// R6 b addr
	// R9 min(len(a),len(b))
	SETB_INIT()
	MOVD	R3,R5
	CMP	R4,R7,CR0
	CMP	R3,R6,CR7
	ISEL	CR0LT,R4,R7,R9
	SETB_CR0(R3)
	BC	$12,30,LR	// beqlr cr7
	BR	cmpbody<>(SB)

TEXT runtime·cmpstring<ABIInternal>(SB),NOSPLIT|NOFRAME,$0-40
	// incoming:

	"runtime.gcWriteBarrier6": true,
	"runtime.gcWriteBarrier7": true,
	"runtime.gcWriteBarrier8": true,
	"runtime.wasmDiv":         true,
	"runtime.wasmTruncS":      true,
	"runtime.wasmTruncU":      true,
	"cmpbody":                 true,
	"memeqbody":               true,
	"memcmp":                  true,
	"memchr":                  true,
}

func assemble(ctxt *obj.Link, s *obj.LSym, newprog obj.ProgAlloc) {