not1 | CS+ V4.01.00

not1

Inverts bit.

[Syntax]

-	not1 bit#3, disp[reg1]

-	not1 reg2, [reg1]

The following can be specified for disp:

-	Absolute expression having a value of up to 32 bits

-	Relative expression

-	Either of the above expressions with LOWW applied

Caution

The disp cannot be specified in syntax "not1 reg2, [reg1]".

[Function]

-	Syntax "not1 bit#3, disp[reg1]"

Inverts the bit specified by the first operand (0 to 1 or 1 to 0) of the data indicated by the address specified by the second operand. The bits other than the one specified are not affected.

-	Syntax "not1 reg2, [reg1]"

Inverts the bit specified by the register value specified by the first operand (0 to 1 or 1 to 0) of the data indicated by the address specified by the register value of the second operand. The bits other than the one specified are not affected.

[Description]

-	If the following is specified for disp, the assembler generates one not1 machine instructionNote.

(a)	Absolute expression having a value in the range of -32,768 to +32,767

not1    bit#3, disp16[reg1]

not1    bit#3, disp16[reg1]

(b)	Relative expression having $label for a label having a definition in the sdata/sbss-attribute section

not1    bit#3, $label[reg1]

not1    bit#3, $label[reg1]

(c)	Relative expression having !label or %label

not1 bit#3, !label[reg1]	not1 bit#3, !label[reg1]
not1 bit#3, %label[reg1]	not1 bit#3, %label[reg1]

(d)	Expression with LOWW

not1 bit#3, HIGHW(value)[reg1]	not1 bit#3, HIGHW(value)[reg1]
not1 bit#3, LOWW(value)[reg1]	not1 bit#3, LOWW(value)[reg1]
not1 bit#3, HIGHW1(value)[reg1]	not1 bit#3, HIGHW1(value)[reg1]

Note	The not1 machine instruction takes an immediate value in the range of -32,768 to +32,767 (0xFFFF8000 to 0x7FFF) as the displacement.

-	If any of the following is specified as disp, the assembler executes instruction expansion to generate multiple machine instructions.

(a)	Absolute expression having a value exceeding the range of -32,768 to +32,767

not1    bit#3, disp[reg1]

movhi   HIGHW1(disp), reg1, r1

not1    bit#3, LOWW(disp)[r1]

(b)	Relative expression having #label or label, or that having $label for a label having no definition in the sdata/sbss-attribute section

not1    bit#3, #label[reg1]

movhi   HIGHW1(#label), reg1, r1

not1    bit#3, LOWW(#label)[r1]

not1    bit#3, label[reg1]

movhi   HIGHW1(label), reg1, r1

not1    bit#3, LOWW(label)[r1]

not1    bit#3, $label[reg1]

movhi   HIGHW1($label), reg1, r1

not1    bit#3, LOWW($label)[r1]

-	If disp is omitted, the assembler assumes 0.

-	If a relative expression with #label, or a relative expression with #label and with LOWW applied is specified as disp, [reg1] can be omitted. If omitted, the assembler assumes that [r0] is specified.

-	If a relative expression with $label, or a relative expression with $label and with LOWW applied is specified as disp, [reg1] can be omitted. If omitted, the assembler assumes that [gp] is specified.

-	If a relative expression with %label, or a relative expression with %label and with LOWW applied is specified as disp, [reg1] can be omitted. If omitted, the assembler assumes that [ep] is specified.

[Flag]

CY	---
OV	---
S	---
Z	1 if the specified bit is 0, 0 if notNote
SAT	---

Note	The flag values shown here are those existing prior to the execution of this instruction, not those after the execution.