// for more details.
// No arg size here, runtime pulls arg map out of the func value.
TEXT ·makeFuncStub(SB),(NOSPLIT|WRAPPER),$40
	NO_LOCAL_POINTERS
	MOVV	REGCTXT, 8(R29)
	MOVV	$argframe+0(FP), R1
	MOVV	R1, 16(R29)
	MOVB	R0, 40(R29)
	ADDV	$40, R29, R1
	MOVV	R1, 24(R29)
	MOVV	R0, 32(R29)
	JAL	·callReflect(SB)
	RET

// methodValueCall is the code half of the function returned by makeMethodValue.

	ADDV	R4, R6, R7
	PCALIGN	$16
loop:
	BNE	R4, R7, test
	MOVV	$1, R4
	RET
test:
	MOVBU	(R4), R9
	ADDV	$1, R4
	MOVBU	(R5), R10
	ADDV	$1, R5
	BEQ	R9, R10, loop

	MOVB    R0, R4
	RET
eq:
	MOVV	$1, R4
	RET

// memequal_varlen(a, b unsafe.Pointer) bool
TEXT runtime·memequal_varlen<ABIInternal>(SB),NOSPLIT,$40-17
	BEQ	R4, R5, eq
	MOVV	8(REGCTXT), R6    // compiler stores size at offset 8 in the closure

	// make sure both a and b are aligned.
	OR	R4, R6, R15
	AND	$7, R15
	BNE	R0, R15, byte_loop

	PCALIGN	$16
chunk16_loop:
	BEQ	R0, R14, byte_loop
	MOVV	(R4), R8
	MOVV	(R6), R9
	BNE	R8, R9, byte_loop
	MOVV	8(R4), R16
	MOVV	8(R6), R17
	ADDV	$16, R4
	ADDV	$16, R6
	SUBVU	$1, R14
	BEQ	R16, R17, chunk16_loop
	SUBV	$8, R4
	SUBV	$8, R6

byte_loop:
	BEQ	R4, R12, samebytes
	MOVBU	(R4), R8
	ADDVU	$1, R4

	MOVW	off+28(FP), R10		// arg 7 - offset
	MOVV	$197, R2		// sys_mmap
	SYSCALL
	MOVV	$0, R4
	BEQ	R7, 3(PC)
	MOVV	R2, R4			// if error, move to R4
	MOVV	$0, R2
	MOVV	R2, p+32(FP)
	MOVV	R4, err+40(FP)
	RET

TEXT runtime·munmap(SB),NOSPLIT,$0
	MOVV	addr+0(FP), R4		// arg 1 - addr
	MOVV	n+8(FP), R5		// arg 2 - len
	MOVV	$73, R2			// sys_munmap
	SYSCALL
	BEQ	R7, 3(PC)

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
	MOVV	R0, err+40(FP)	// errno
	RET

TEXT ·rawSyscallNoError(SB),NOSPLIT,$0-48

TEXT ·rawVforkSyscall(SB),NOSPLIT,$0-48
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5
	MOVV	a3+24(FP), R6
	MOVV	$0, R7
	MOVV	$0, R8
	MOVV	$0, R9
	MOVV	trap+0(FP), R11	// syscall entry
	SYSCALL
	MOVW	$-4096, R12
	BGEU	R12, R4, ok
	MOVV	$-1, R12
	MOVV	R12, r1+32(FP)	// r1
	SUBVU	R4, R0, R4
	MOVV	R4, err+40(FP)	// errno
	RET
ok:
	MOVV	R4, r1+32(FP)	// r1
	MOVV	R0, err+40(FP)	// errno
	RET

TEXT ·Syscall6(SB),NOSPLIT,$0-80
	MOVV	num+0(FP), R2	// syscall entry
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5
	MOVV	a3+24(FP), R6
	MOVV	a4+32(FP), R7
	MOVV	a5+40(FP), R8
	MOVV	a6+48(FP), R9
	MOVV	R0, R3	// reset R3 to 0 as 1-ret SYSCALL keeps it
	SYSCALL
	BEQ	R7, ok
	MOVV	$-1, R1
	MOVV	R1, r1+56(FP)
	MOVV	R0, r2+64(FP)
	MOVV	R2, errno+72(FP)
	RET
ok:
	MOVV	R2, r1+56(FP)
	MOVV	R3, r2+64(FP)

//		return 1;
//	} else {
//		return 0;
//	}
TEXT ·Cas64(SB), NOSPLIT, $0-25
	MOVV	ptr+0(FP), R1
	MOVV	old+8(FP), R2
	MOVV	new+16(FP), R5
	SYNC
cas64_again:
	MOVV	R5, R3
	LLV	(R1), R4
	BNE	R2, R4, cas64_fail
	SCV	R3, (R1)
	BEQ	R3, cas64_again
	MOVV	$1, R1
	MOVB	R1, ret+24(FP)
	SYNC
	RET
cas64_fail:
	MOVV	$0, R1
	JMP	-4(PC)

TEXT ·Casint32(SB), NOSPLIT, $0-17
	JMP	·Cas(SB)

#include "textflag.h"

// See memmove Go doc for important implementation constraints.

// func memmove(to, from unsafe.Pointer, n uintptr)
TEXT runtime·memmove(SB), NOSPLIT|NOFRAME, $0-24
	MOVV	to+0(FP), R1
	MOVV	from+8(FP), R2
	MOVV	n+16(FP), R3
	BNE	R3, check
	RET

check:
	SGTU	R1, R2, R4
	BNE	R4, backward

	ADDV	R1, R3, R6 // end pointer

	// if the two pointers are not of same alignments, do byte copying

	JMP	foo(SB)			// 00000050

	JMP	(R4)			// 8000004c
	JMP	1(PC)			// 00040050
	MOVW	$65536, R4		// 04020014
	MOVW	$4096, R4		// 24000014
	MOVV	$65536, R4		// 04020014
	MOVV	$4096, R4		// 24000014
	MOVW	R4, R5			// 85001700
	MOVV	R4, R5			// 85001500
	MOVBU	R4, R5			// 85fc4303
	SUB	R4, R5, R6		// a6101100
	SUBV	R4, R5, R6		// a6901100
	ADD	R4, R5, R6		// a6101000
	ADDV	R4, R5, R6		// a6901000