Branching Instructions - Renesas H8 Series Hardware Manual

Section 2 CPU
2.5.6

Branching Instructions

Table 2.9 describes the branching instructions. Figure 2.8 shows their object code formats.
Table 2.9 Branching Instructions
Instruction Size
Bcc —
JMP —
BSR —
JSR —
RTS —
Rev. 7.00 Mar 10, 2005 page 50 of 652
REJ09B0042-0700
Function
Branches to the designated address if condition cc is true. The
branching conditions are given below.
Mnemonic Description
BRA (BT) Always (true)
BRN (BF) Never (false)
BHI High
BLS Low or same
BCC (BHS) Carry clear (high or same)
BCS (BLO) Carry set (low)
BNE Not equal
BEQ Equal
BVC Overflow clear
BVS Overflow set
BPL Plus
BMI Minus
BGE Greater or equal
BLT Less than
BGT Greater than
BLE Less or equal
Branches unconditionally to a specified address
Branches to a subroutine at a specified address
Branches to a subroutine at a specified address
Returns from a subroutine
Condition
Always
Never
C ∨ Z = 0
C ∨ Z = 1
C = 0
C = 1
Z = 0
Z = 1
V = 0
V = 1
N = 0
N = 1
N ⊕ V = 0
N ⊕ V = 1
Z ∨ (N ⊕ V) = 0
Z ∨ (N ⊕ V) = 1