BLT — Branch if Less Than

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
BLT 0010 0111
s 3210
t 3210
imm8 76543210

Assembler Syntax

BLT as, at, label

Description

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

BLT branches if address register as is two's complement less than address register at.

The target instruction address of the branch is given by the address of the BLT 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 BLT is BGE.

Operation

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

Exceptions

EveryInstR Group (see EveryInstR Group:)