Specifications

Bit Fields
IMM16 0x1e
br
Instruction unconditional branch
Operation
PC ← PC + 4 + σ(IMM16)
Assembler Syntax
br label
Example
br top_of_loop
Description
Transfers program control to the instruction at label. In the
instruction encoding, the offset given by IMM16 is treated as a
signed number of bytes relative to the instruction immediately
following br. The two least-significant bits of IMM16 are
always zero, because instruction addresses must be word-
aligned.
Exceptions
Misaligned destination address
Instruction Type
I
Instruction Fields
IMM16 = 16-bit signed immediate value
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0 0 IMM16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
IMM16 0x06
break
Instruction
debugging breakpoint
Operation
bstatus ← status
PIE ← 0
U ← 0
ba ← PC + 4
PC ← break handler address
Assembler Syntax
break
break imm5
8-18
br
NII51017
2015.04.02
Altera Corporation
Instruction Set Reference
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