TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	MOVW.W R14, -188(R13)
	MOVW R0, 4(R13)
	MOVW R1, 8(R13)
	MOVW R2, 12(R13)
	MOVW R3, 16(R13)
	MOVW R4, 20(R13)
	MOVW R5, 24(R13)
	MOVW R6, 28(R13)
	MOVW R7, 32(R13)
	MOVW R8, 36(R13)
	MOVW R9, 40(R13)
	MOVW R11, 44(R13)
	MOVW R12, 48(R13)
	MOVW CPSR, R0
	MOVW R0, 52(R13)
	MOVB ·goarmsoftfp(SB), R0
	CMP $0, R0
	BNE nofp
	MOVW FPCR, R0
	MOVW R0, 56(R13)
	MOVD F0, 60(R13)

TEXT	racecall<>(SB), NOSPLIT, $0-0
	BL	runtime·save_g(SB)		// Save g for callbacks.
	MOVD	R15, R7				// Save SP.
	MOVD	g_m(g), R8			// R8 = thread.
	MOVD	m_g0(R8), R8			// R8 = g0.
	CMPBEQ	R8, g, call			// Already on g0?
	MOVD	(g_sched+gobuf_sp)(R8), R15	// Switch SP to g0.
call:	SUB	$160, R15			// Allocate C frame.
	BL	R1				// Call C code.
	MOVD	R7, R15				// Restore SP.
	RET					// Return to Go.

//

// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5
	MOVV	a3+24(FP), R6
	MOVV	R0, R7
	MOVV	R0, R8
	MOVV	R0, R9
	MOVV	trap+0(FP), R2	// syscall entry
	SYSCALL
	BEQ	R7, ok
	MOVV	$-1, R1
	MOVV	R1, r1+32(FP)	// r1
	MOVV	R2, err+40(FP)	// errno
	RET
ok:
	MOVV	R2, r1+32(FP)	// r1

	SUB $496, RSP
	MOVD R29, -8(RSP)
	SUB $8, RSP, R29
	#ifdef GOOS_ios
	MOVD R30, (RSP)
	#endif
	STP (R0, R1), 8(RSP)
	STP (R2, R3), 24(RSP)
	STP (R4, R5), 40(RSP)
	STP (R6, R7), 56(RSP)
	STP (R8, R9), 72(RSP)
	STP (R10, R11), 88(RSP)
	STP (R12, R13), 104(RSP)
	STP (R14, R15), 120(RSP)
	STP (R16, R17), 136(RSP)
	STP (R19, R20), 152(RSP)
	STP (R21, R22), 168(RSP)
	STP (R23, R24), 184(RSP)

	// Cannot grow signal stack (m->gsignal).
	MOVD	m_gsignal(R8), R4
	CMP	g, R4
	BNE	3(PC)
	BL	runtime·badmorestackgsignal(SB)
	B	runtime·abort(SB)

	// Called from f.
	// Set m->morebuf to f's callers.
	MOVD	R3, (m_morebuf+gobuf_pc)(R8)	// f's caller's PC
	MOVD	RSP, R0
	MOVD	R0, (m_morebuf+gobuf_sp)(R8)	// f's caller's RSP
	MOVD	g, (m_morebuf+gobuf_g)(R8)

	// Call newstack on m->g0's stack.
	MOVD	m_g0(R8), g

	ADJSP $368
	// But vet doesn't know ADJSP, so suppress vet stack checking
	NOP SP
	MOVQ AX, 0(SP)
	MOVQ CX, 8(SP)
	MOVQ DX, 16(SP)
	MOVQ BX, 24(SP)
	MOVQ SI, 32(SP)
	MOVQ DI, 40(SP)
	MOVQ R8, 48(SP)
	MOVQ R9, 56(SP)
	MOVQ R10, 64(SP)
	MOVQ R11, 72(SP)
	MOVQ R12, 80(SP)
	MOVQ R13, 88(SP)
	MOVQ R14, 96(SP)
	MOVQ R15, 104(SP)
	#ifdef GOOS_darwin
	#ifndef hasAVX

	MOVL crcB+4(FP), CX
	MOVL crcC+8(FP), DX

	MOVQ a+16(FP), R8   // data pointer
	MOVQ b+40(FP), R9   // data pointer
	MOVQ c+64(FP), R10  // data pointer

	MOVL rounds+88(FP), R11

loop:
	CRC32Q (R8), AX
	CRC32Q (R9), CX
	CRC32Q (R10), DX

	CRC32Q 8(R8), AX
	CRC32Q 8(R9), CX
	CRC32Q 8(R10), DX

	CRC32Q 16(R8), AX
	CRC32Q 16(R9), CX
	CRC32Q 16(R10), DX

	ADDQ $24, R8

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package abi

const (
	// See abi_generic.go.

	// RAX, RBX, RCX, RDI, RSI, R8, R9, R10, R11.
	IntArgRegs = 9

	// X0 -> X14.
	FloatArgRegs = 15

	// We use SSE2 registers which support 64-bit float operations.
	EffectiveFloatRegSize = 8

	FMOVD	x+0(FP), F0
	MOVD	$·logrodataL21<>+0(SB), R9
	MOVH	$0x8006, R4
	LGDR	F0, R1
	MOVD	$0x3FF0000000000000, R6
	SRAD	$48, R1, R1
	MOVD	$0x40F03E8000000000, R8
	SUBW	R1, R4
	RISBGZ	$32, $59, $0, R4, R2
	RISBGN	$0, $15, $48, R2, R6
	RISBGN	$16, $31, $32, R2, R8
	MOVW	R1, R7
	CMPBGT	R7, $22, L17
	LTDBR	F0, F0
	MOVD	$·logx43f<>+0(SB), R1
	FMOVD	0(R1), F2
	BLEU	L3
	MOVH	$0x8005, R12
	MOVH	$0x8405, R0
	BR	L15

TEXT	·Syscall6(SB),NOSPLIT,$0-80
	CALL	runtime·entersyscall<ABIInternal>(SB)
	MOVQ	trap+0(FP), AX	// syscall entry
	MOVQ	a1+8(FP), DI
	MOVQ	a2+16(FP), SI
	MOVQ	a3+24(FP), DX
	MOVQ	a4+32(FP), R10
	MOVQ	a5+40(FP), R8
	MOVQ	a6+48(FP), R9
	SYSCALL
	JCC	ok6
	MOVQ	$-1, r1+56(FP)	// r1
	MOVQ	$0, r2+64(FP)	// r2
	MOVQ	AX, err+72(FP)  // errno
	CALL	runtime·exitsyscall<ABIInternal>(SB)
	RET
ok6:
	MOVQ	AX, r1+56(FP)	// r1