pkg debug/elf, const R_MIPS_RELGOT R_MIPS
pkg debug/elf, const R_MIPS_SCN_DISP = 32
pkg debug/elf, const R_MIPS_SCN_DISP R_MIPS
pkg debug/elf, const R_MIPS_SHIFT5 = 16
pkg debug/elf, const R_MIPS_SHIFT5 R_MIPS
pkg debug/elf, const R_MIPS_SHIFT6 = 17
pkg debug/elf, const R_MIPS_SHIFT6 R_MIPS
pkg debug/elf, const R_MIPS_SUB = 24
pkg debug/elf, const R_MIPS_SUB R_MIPS
pkg debug/elf, const R_MIPS_TLS_DTPMOD32 = 38

../mkzip ../../zoneinfo.zip
cd ../..

files="update.bash zoneinfo.zip"
modified=true
if git diff --quiet $files; then
	modified=false
fi

if [ "$1" = "-work" ]; then
	echo Left workspace behind in work/.
	shift
else
	rm -rf work
fi

if ! $modified; then
	echo No updates needed.
	exit 0
fi

echo Updated for $CODE/$DATA: $files

commitmsg="lib/time: update to $CODE/$DATA

			comment: "in the 世界",
			flags:   0x808,
		},
		{
			name:    "the replacement rune is �",
			comment: "the replacement rune is �",
			flags:   0x808,
		},
		{
			// Name is Japanese encoded in Shift JIS.
			name:    "\x93\xfa\x96{\x8c\xea.txt",
			comment: "in the 世界",
			flags:   0x008, // UTF-8 must not be set
		},
	}

	// write a zip file
	buf := new(bytes.Buffer)
	w := NewWriter(buf)

	{"3%0", "modulo by zero"},
	{"(1<<63)%0", "modulo of value with high bit set"},
	{"3<<-4", "negative left shift count"},
	{"3<<(1<<63)", "negative left shift count"},
	{"3>>-4", "negative right shift count"},
	{"3>>(1<<63)", "negative right shift count"},
	{"(1<<63)>>2", "right shift of value with high bit set"},
	{"(1<<62)>>2", ""},
	{`'\x80'`, "illegal UTF-8 encoding for character constant"},

pkg syscall (freebsd-arm64), const IN_CLASSB_NSHIFT = 16
pkg syscall (freebsd-arm64), const IN_CLASSB_NSHIFT ideal-int
pkg syscall (freebsd-arm64), const IN_CLASSC_HOST = 255
pkg syscall (freebsd-arm64), const IN_CLASSC_HOST ideal-int
pkg syscall (freebsd-arm64), const IN_CLASSC_NET = 4294967040
pkg syscall (freebsd-arm64), const IN_CLASSC_NET ideal-int
pkg syscall (freebsd-arm64), const IN_CLASSC_NSHIFT = 8

<code>R0-&gt;16</code>
<br>
<code>R0&gt;&gt;16</code>
<br>
<code>R0&lt;&lt;16</code>
<br>
<code>R0@&gt;16</code>:
For <code>&lt;&lt;</code>, left shift <code>R0</code> by 16 bits.
The other codes are <code>-&gt;</code> (arithmetic right shift),
<code>&gt;&gt;</code> (logical right shift), and
<code>@&gt;</code> (rotate right).
</li>

<li>
<code>R0-&gt;R1</code>
<br>
<code>R0&gt;&gt;R1</code>
<br>

	SLL	R5, R6, R7           // 1675a0e1
	SLL.S	R5, R6, R7           // 1675b0e1
	SLL	R5, R7               // 1775a0e1
	SLL.S	R5, R7               // 1775b0e1

// Ops with zero shifts should encode as left shifts
	ADD	R0<<0, R1, R2	     // 002081e0
	ADD	R0>>0, R1, R2	     // 002081e0
	ADD	R0->0, R1, R2	     // 002081e0
	ADD	R0@>0, R1, R2	     // 002081e0
	MOVW	R0<<0(R1), R2        // 002091e7

pkg syscall (darwin-arm64), const IN_CLASSB_NSHIFT = 16
pkg syscall (darwin-arm64), const IN_CLASSB_NSHIFT ideal-int
pkg syscall (darwin-arm64), const IN_CLASSC_HOST = 255
pkg syscall (darwin-arm64), const IN_CLASSC_HOST ideal-int
pkg syscall (darwin-arm64), const IN_CLASSC_NET = 4294967040
pkg syscall (darwin-arm64), const IN_CLASSC_NET ideal-int
pkg syscall (darwin-arm64), const IN_CLASSC_NSHIFT = 8

pkg syscall (darwin-386), const IN_CLASSA_NET ideal-int
pkg syscall (darwin-386), const IN_CLASSA_NSHIFT ideal-int
pkg syscall (darwin-386), const IN_CLASSB_HOST ideal-int
pkg syscall (darwin-386), const IN_CLASSB_MAX ideal-int
pkg syscall (darwin-386), const IN_CLASSB_NET ideal-int
pkg syscall (darwin-386), const IN_CLASSB_NSHIFT ideal-int
pkg syscall (darwin-386), const IN_CLASSC_HOST ideal-int

	FMOVS	0x1000000(R1), F2	// FMOVS	16777216(R1), F2
	FMOVS	0x44332211(R1), F2	// FMOVS	1144201745(R1), F2
	FMOVD	0x1000000(R1), F2	// FMOVD	16777216(R1), F2
	FMOVD	0x44332211(R1), F2	// FMOVD	1144201745(R1), F2

// shifted or extended register offset.
	MOVD	(R2)(R6.SXTW), R4               // 44c866f8
	MOVD	(R3)(R6), R5                    // 656866f8
	MOVD	(R3)(R6*1), R5                  // 656866f8