MOVD	savedm-8(SP), R6
	CMP	R6, $0
	BNE	droppedm

	// Skip dropm to reuse it in the next call, when a pthread key has been created.
	MOVD	_cgo_pthread_key_created(SB), R6
	// It means cgo is disabled when _cgo_pthread_key_created is a nil pointer, need dropm.
	CMP	R6, $0
	BEQ	dropm
	MOVD	(R6), R6
	CMP	R6, $0
	BNE	droppedm

dropm:
	MOVD	$runtime·dropm(SB), R12

#include "textflag.h"

// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
TEXT ·Syscall(SB),NOSPLIT,$0-56
	JAL	runtime·entersyscall(SB)
	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	R0, r2+40(FP)	// r2
	MOVV	R2, err+48(FP)	// errno

	SUBSW R2.SXTH<<3, R13, R6                  // a6ad226b
	SUBS R21.UXTX<<2, R27, R4                  // 646b35eb
	SUBSW $(44<<12), R6, R9                    // SUBSW $180224, R6, R9         // c9b04071
	SUBS $(1804<<12), R13, R9                  // SUBS $7389184, R13, R9        // a9315cf1
	SUBSW R22->28, R6, R7                      // c770966b
	SUBSW R22>>28, R6, R7                      // c770566b

	MOVV	n+8(FP), R5		// arg 2 - len
	MOVW	flags+16(FP), R6	// arg 2 - flags
	MOVV	$75, R2			// sys_madvise
	SYSCALL
	BEQ	R7, 2(PC)
	MOVW	$-1, R2
	MOVW	R2, ret+24(FP)
	RET

TEXT runtime·setitimer(SB),NOSPLIT,$0
	MOVW	mode+0(FP), R4		// arg 1 - mode
	MOVV	new+8(FP), R5		// arg 2 - new value
	MOVV	old+16(FP), R6		// arg 3 - old value
	MOVV	$69, R2			// sys_setitimer
	SYSCALL
	RET

//

// func rawVforkSyscall(trap, a1, a2, a3 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-48
	MOVD	a1+8(FP), R2
	MOVD	a2+16(FP), R3
	MOVD	a3+24(FP), R4
	MOVD	$0, R5
	MOVD	$0, R6
	MOVD	$0, R7
	MOVD	trap+0(FP), R1	// syscall entry
	SYSCALL
	MOVD	$0xfffffffffffff001, R8
	CMPUBLT	R2, R8, ok2
	MOVD	$-1, r1+32(FP)
	NEG	R2, R2
	MOVD	R2, err+40(FP)	// errno
	RET
ok2:
	MOVD	R2, r1+32(FP)

	CMPBEQ	R4, $0, notfound
	MOVD	R3, R6          // store base for later
	ADD	R3, R4, R8      // the address after the end of the string
	//if the length is small, use loop; otherwise, use vector or srst search
	CMPBGE	R4, $16, large

residual:
	CMPBEQ	R3, R8, notfound
	MOVBZ	0(R3), R7
	LA	1(R3), R3
	CMPBNE	R7, R5, residual

found:
	SUB	R6, R3
	SUB	$1, R3
	MOVD	R3, 0(R2)
	RET

notfound:

	MOVD	$·erfrodataL13<>+0(SB), R5
	LGDR	F0, R1
	FMOVD	F0, F6
	SRAD	$48, R1
	MOVH	$16383, R3
	RISBGZ	$49, $63, $0, R1, R2
	MOVW	R2, R6
	MOVW	R3, R7
	CMPBGT	R6, R7, L2
	MOVH	$12287, R1
	MOVW	R1, R7
	CMPBLE	R6, R7 ,L12
	MOVH	$16367, R1
	MOVW	R1, R7
	CMPBGT	R6, R7, L5
	FMOVD	448(R5), F4
	FMADD	F0, F0, F4
	FMOVD	440(R5), F3
	WFMDB	V4, V4, V2
	FMOVD	432(R5), F0
	FMOVD	424(R5), F1

	FMOVD	F0, F8
	SRAD	$32, R7
	WORD	$0xC0193FE6 //iilf  %r1,1072079005
	BYTE	$0xA0
	BYTE	$0x9D
	WORD	$0xB91700C7 //llgtr %r12,%r7
	MOVW	R12, R8
	MOVW	R1, R6
	CMPBGT	R8, R6, L2
	WORD	$0xC0193BFF //iilf  %r1,1006632959
	BYTE	$0xFF
	BYTE	$0xFF
	MOVW	R1, R6
	CMPBGT	R8, R6, L13
L3:
	FMOVD	216(R9), F0
	FMADD	F0, F8, F8
L1:
	FMOVD	F8, ret+8(FP)
	RET
L2:
	WORD	$0xC0193FEF	//iilf	%r1,1072693247
	BYTE	$0xFF

	MOVD	0(R3), R3		// arg 1 - attr
	CALL	libc_pthread_attr_setdetachstate(SB)
	RET

TEXT runtime·pthread_create_trampoline(SB),NOSPLIT,$32
	MOVD	0(R3), R4		// arg 2 - attr
	MOVD	8(R3), R5		// arg 3 - start
	MOVD	16(R3), R6		// arg 4 - arg

	MOVD	R1, R15
	SUB	$64, R1
	RLDCR	$0, R1, $~15, R1
	MOVD	R1, R3			// arg 1 - &threadid (discard)
	CALL	libc_pthread_create(SB)
	MOVD	R15, R1

	RET

	MOVD	fn+0(FP), R0        // function code (encryption)
	MOVD	key_base+8(FP), R1  // key
	MOVD	buf_base+80(FP), R2 // counter values
	MOVD	dst_base+32(FP), R4 // dst
	MOVD	src_base+56(FP), R6 // src
	MOVD	src_len+64(FP), R7  // len
loop:
	KMCTR	R4, R2, R6          // cipher message with counter (KMCTR)
	BVS	loop                // branch back if interrupted
	RET
crash:
	MOVD	$0, (R0)
	RET