BFC	$29, $2, R8                              // 1f81dee7
	BFI	$29, $2, R8                              // 1881dee7
	BFI	$16, $8, R1, R2 // BFI $16, R1, $8, R2   // 1124d7e7

// synthetic arithmetic
	ADD	$0xffffffaa, R2, R3 // ADD $4294967210, R2, R3   // 55b0e0e30b3082e0
	ADD	$0xffffff55, R5     // ADD $4294967125, R5       // aab0e0e30b5085e0
	ADD.S	$0xffffffab, R2, R3 // ADD.S $4294967211, R2, R3 // 54b0e0e30b3092e0

// the old assembler's (7a's) grammar and hand-writing complete
// instructions for each rule, to guarantee we cover the same space.

#include "../../../../../runtime/textflag.h"

TEXT	foo(SB), DUPOK|NOSPLIT, $-8

// arithmetic operations
	ADDW	$1, R2, R3
	ADDW	R1, R2, R3
	ADDW	R1, ZR, R3
	ADD	$1, R2, R3
	ADD	R1, R2, R3
	ADD	R1, ZR, R3
	ADD	$1, R2, R3
	ADDW	$1, R2
	ADDW	R1, R2
	ADD	$1, R2
	ADD	R1, R2
	ADD	R1>>11, R2