sp >>>= 0;
						setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
					},

					// func walltime() (sec int64, nsec int32)
					"runtime.walltime": (sp) => {
						sp >>>= 0;
						const msec = (new Date).getTime();
						setInt64(sp + 8, msec / 1000);
						this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
					},

					// func scheduleTimeoutEvent(delay int64) int32

	{"asmcgocall<>(SB)", "asmcgocall<>(SB)"},
	{"ax+4(FP)", "ax+4(FP)"},
	{"ptime-12(SP)", "ptime-12(SP)"},
	{"runtime·_NtWaitForSingleObject(SB)", "runtime._NtWaitForSingleObject(SB)"},
	{"s(FP)", "s(FP)"},
	{"sec+4(FP)", "sec+4(FP)"},
	{"shifts<>(SB)(CX*8)", "shifts<>(SB)(CX*8)"},
	{"x+4(FP)", "x+4(FP)"},
	{"·AddUint32(SB)", "pkg.AddUint32(SB)"},
	{"·reflectcall(SB)", "pkg.reflectcall(SB)"},

// field names when generating the C or Go code. For generated
// C, we leave the names as is (tv_sec, tv_usec), since that's what
// people are used to seeing in C.  For generated Go code, such as
// package syscall's data structures, we drop a common prefix
// (so sec, usec, which will get turned into Sec, Usec for exporting).
func fieldPrefix(fld []*ast.Field) string {
	prefix := ""
	for _, f := range fld {

	CRC32CW R9, R3, R21                        // 7558c91a
	CRC32CX R11, R0, R24                       // 185ccb9a
	CSELW LO, R4, R20, R12                     // 8c30941a
	CSEL GE, R0, R12, R14                      // 0ea08c9a
	CSETW GE, R3                               // e3b79f1a
	CSET LT, R30                               // fea79f9a
	CSETMW VC, R5                              // e5639f5a
	CSETM VS, R4                               // e4739fda

pkg syscall (darwin-arm64), type Timespec struct, Nsec int64
pkg syscall (darwin-arm64), type Timespec struct, Sec int64
pkg syscall (darwin-arm64), type Timeval struct, Pad_cgo_0 [4]uint8
pkg syscall (darwin-arm64), type Timeval struct, Sec int64
pkg syscall (darwin-arm64), type Timeval struct, Usec int32
pkg syscall (darwin-arm64), type Timeval32 struct
pkg syscall (darwin-arm64), type Timeval32 struct, Sec int32

	VMOV	V8.B[0], V12.B[1]     // 0c05036e
	VMOV	V8.B[7], V4.B[8]      // 043d116e

// CBZ
again:
	CBZ	R1, again // CBZ R1

// conditional operations
	CSET	GT, R1	        // e1d79f9a
	CSETW	HI, R2	        // e2979f1a
	CSEL	LT, R1, R2, ZR	// 3fb0829a
	CSELW	LT, R2, R3, R4	// 44b0831a
	CSINC	GT, R1, ZR, R3	// 23c49f9a
	CSNEG	MI, R1, R2, R3	// 234482da
	CSINV	CS, R1, R2, R3	// CSINV	HS, R1, R2, R3 // 232082da

pkg syscall (freebsd-arm64), type Termios struct, Ospeed uint32
pkg syscall (freebsd-arm64), type Timespec struct, Nsec int64
pkg syscall (freebsd-arm64), type Timespec struct, Sec int64
pkg syscall (freebsd-arm64), type Timeval struct, Sec int64
pkg syscall (freebsd-arm64), type Timeval struct, Usec int64
pkg syscall (freebsd-arm64), type WaitStatus uint32
pkg syscall (freebsd-arm64), var Stderr int

pkg syscall (freebsd-riscv64), type Termios struct, Ospeed uint32 #53466
pkg syscall (freebsd-riscv64), type Timespec struct, Nsec int64 #53466
pkg syscall (freebsd-riscv64), type Timespec struct, Sec int64 #53466
pkg syscall (freebsd-riscv64), type Timeval struct, Sec int64 #53466
pkg syscall (freebsd-riscv64), type Timeval struct, Usec int64 #53466
pkg syscall (freebsd-riscv64), type WaitStatus uint32 #53466

pkg syscall (openbsd-386), type Statfs_t struct, F_ctime uint32
pkg syscall (openbsd-386), type Statfs_t struct, F_spare [3]uint32
pkg syscall (openbsd-386), type Timespec struct, Sec int32
pkg syscall (openbsd-386), type Timeval struct, Sec int32
pkg syscall (openbsd-386-cgo), const BIOCGRTIMEOUT = 1074283118
pkg syscall (openbsd-386-cgo), const BIOCSRTIMEOUT = 2148024941
pkg syscall (openbsd-386-cgo), const ImplementsGetwd = false

	CNEG	AL, R2, R3                                       // ERROR "invalid condition"
	CNEGW	NV, R2, R3                                       // ERROR "invalid condition"
	CSET	AL, R2                                           // ERROR "invalid condition"
	CSET	NV, R2                                           // ERROR "invalid condition"
	CSETMW	AL, R2                                           // ERROR "invalid condition"