SPARC Assembly Language Reference Manual

5.1 Table Notation

Table 5–1 shows the table notation used in this chapter to describe the instruction set of the assembler. The following notations are commonly suffixed to assembler mnemonics (uppercase letters refer to SPARC architecture instruction names.

Table 5–1


Notations	Describes	Comment
`address`	`reg_rs1 + reg_rs2` `reg_rs1 + const13` `reg_rs1 – const13` `const13 + reg_rs1` `const13`	Address formed from register contents, immediate constant, or both.
`asi`		Alternate address space identifier; an unsigned 8–bit value. It can be the result of the evaluation of a symbol expression.
`const13`		A signed constant which fits in 13 bits. It can be the result of the evaluation of a symbol expression.
`const22`		A constant which fits in 22 bits. It can be the result of the evaluation of a symbol expression.
`creg`	`%c0 ... %c31`	Coprocessor registers.
`freg`	`%f0 ... %f31`	Floating-point registers.
`imm7`		A signed or unsigned constant that can be represented in 7 bits (it is in the range -64 ... 127). It can be the result of the evaluation of a symbol expression.
`reg`	`%r0 ... %r31`	General purpose registers.
	`%g0 ... %g7`	Same as `%r0 ... %r7` (Globals)
	`%o0 ... %o7`	Same as `%r8 ... %r15` (Outs)
	`%l0 ... %l7`	Same as `%r16 ... %r23` (Locals)
	`%i0 ... %i7`	Same as `%r24 ... %r31` (Ins)
`reg`_rd		Destination register.
`reg`_rs1`, reg`_rs2		Source register 1, source register 2.
`reg_or_imm`	`reg`_rs2`, const13`	Value from either a single register, or an immediate constant.
`regaddr`	`reg`_rs1 `reg`_rs1 `+ reg`_rs2	Address formed with register contents only.
`Software_trap_number`	`reg_rs1 + reg_rs2` `reg_rs1 + imm7` `reg_rs1 - imm7` `uimm7` `imm7 + reg_rs1`	A value formed from register contents, immediate constant, or both. The resulting value must be in the range 0.....127, inclusive.
`uimm7`		An unsigned constant that can be represented in 7 bits (it is in the range 0 ... 127). It can be the result of the evaluation of a symbol expression.