BLTU — Branch if Less Than Unsigned

Instruction Word

Slot
Inst
6
3
6
2
6
1
6
0
5
9
5
8
5
7
5
6
5
5
5
4
5
3
5
2
5
1
5
0
4
9
4
8
4
7
4
6
4
5
4
4
4
3
4
2
4
1
4
0
3
9
3
8
3
7
3
6
3
5
3
4
3
3
3
2
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
9876543210
Format x24 - 24 bit(s) 0
BLTU 0011 0111
s 3210
t 3210
imm8 76543210

Assembler Syntax

BLTU as, at, label

Description

(please consult the Xtensa ® Instruction Set Architecture Reference Manual for any cross references and additional information)

BLTU branches if address register as is unsigned less than address register at.

The target instruction address of the branch is given by the address of the BLTU instruction, plus the sign-extended 8-bit imm8 field of the instruction plus four. If the address register as is greater than or equal to address register at, execution continues with the next sequential instruction.

The inverse of BLTU is BGEU.

Operation

if (0||AR[s]) < (0||AR[t]) then
	nextPC ← PC + (imm8724||imm8) + 4
endif

Exceptions

EveryInstR Group (see EveryInstR Group:)