SRLI	$1, F1, X5			// ERROR "expected integer register in rs1 position but got non-integer register F1"
	FNES	F1, (X5)			// ERROR "needs an integer register output"

	MOVL	ptr+0(FP), AX
	TESTL	$7, AX
	JZ	2(PC)
	MOVL	0, AX // crash with nil ptr deref
	LEAL	ret_lo+4(FP), BX
	// MOVQ (%EAX), %MM0
	BYTE $0x0f; BYTE $0x6f; BYTE $0x00
	// MOVQ %MM0, 0(%EBX)
	BYTE $0x0f; BYTE $0x7f; BYTE $0x03
	// EMMS
	BYTE $0x0F; BYTE $0x77
	RET

	VPOPCNTQ Z3, K2, Z9                                // 6272fd4a55cb
	VPOPCNTQ 17(SP), K2, Z9                            // 6272fd4a558c2411000000
	VPOPCNTQ -17(BP)(SI*4), K2, Z9                     // 6272fd4a558cb5efffffff

	VAESENCLAST 7(SI)(DI*1), Z8, Z11                   // 62723d48dd9c3e07000000 or 6272bd48dd9c3e07000000
	VAESENCLAST 15(DX)(BX*8), Z8, Z11                  // 62723d48dd9cda0f000000 or 6272bd48dd9cda0f000000

	VPCLMULQDQ $97, 7(SI)(DI*1), Z26, Z12              // 62732d4044a43e0700000061 or 6273ad4044a43e0700000061
	VPCLMULQDQ $97, 15(DX)(BX*8), Z26, Z12             // 62732d4044a4da0f00000061 or 6273ad4044a4da0f00000061

	MUL	R1, R2, R3


	//
	// RET
	//
	//	LRETRN	comma // asm doesn't support the trailing comma.
	//	{
	//		outcode(int($1), &nullgen, 0, &nullgen);
	//	}
	SYSCALL
	BEQ	R1, 2(PC)
	RET


	// More JMP/JAL cases, and canonical names JMP, CALL.

	JAL	foo(SB)	// CALL foo(SB)
	BEQ	R1, 2(PC)
	JMP	foo(SB)
	CALL	foo(SB)
	RET	foo(SB)

	// unary operation

	VPMADD52LUQ Z13, Z5, K7, Z28                       // 6242d54fb4e5
	VPMADD52LUQ 7(AX), Z5, K7, Z28                     // 6262d54fb4a007000000
	VPMADD52LUQ (DI), Z5, K7, Z28                      // 6262d54fb427

// Was bug: LOOP is a branch instruction.
	JCS	2(PC)
loop:
	LOOP	loop // LOOP

// Tests for TLS reference.
	MOVL    (TLS), AX
	MOVL    8(TLS), DX

// LTYPE0 nonnon	{ outcode(int($1), &$2); }
	RET

	-p pkgpath
		Set expected package import to pkgpath.
	-shared
		Generate code that can be linked into a shared library.
	-spectre list
		Enable spectre mitigations in list (all, ret).
	-trimpath prefix
		Remove prefix from recorded source file paths.
	-v
		Print debug output.

Input language:

The assembler uses mostly the same syntax for all architectures,

	VMOVDQA32.Z Z0, K0, Z1           // ERROR "invalid instruction"
	VMOVDQA32.Z Z0, K1, Z1           // ok

	RDPID (BX)			 // ERROR "invalid instruction"