Bcc:d (Branch Relative If Condition Satisfied) - Fujitsu FR Family Instruction Manual

7.99

Bcc:D (Branch Relative if Condition Satisfied)

This is a branching instruction with a delay slot.
If the conditions established for each particular instruction are satisfied, branch to the
address indicated by "label9" relative to the value of the program counter (PC). When
calculating the address, double the value of "rel8" as a signed extension.
If conditions are not satisfied, no branching can occur.
Conditions for each instruction are listed in Table 7.99-1.
■ Bcc:D (Branch Relative if Condition Satisfied)
Assembler format: BRA : D
BNO : D
BEQ : D
BNE : D
BC : D
BNC : D
BN : D
BP : D
Operation: if (conditions satisfied) {
}
Table 7.99-1 Branching Conditions
Flag change:
N, Z, V, and C: Unchanged
label9 BV : D
label9 BNV : D
label9 BLT : D
label9 BGE : D
label9 BLE : D
label9 BGT : D
label9 BLS : D
label9 BHI : D
PC + 2 + exts (rel8 × 2) → PC
Mnemonic cc
BRA : D 0000
B
BNO : D 0001
B
BEQ : D 0010
B
BNE : D 0011
B
BC : D 0100
B
BNC : D 0101
B
BN : D 0110
B
BP : D 0111
B
N Z V C
– – – –
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
label9
label9
label9
label9
label9
label9
label9
label9
Conditions Mnemonic
Always satisfied BV : D
Always unsatisfied BNV : D
Z = 1 BLT : D
Z = 0 BGE : D
C = 1 BLE : D
C = 0 BGT : D
N = 1 BLS : D
N = 0 BHI : D
cc Conditions
1000 V = 1
B
1001 V = 0
B
1010 V xor N = 1
B
1011 V xor N = 0
B
1100 (V xor N) or Z = 1
B
1101 (V xor N) or Z = 0
B
1110 C or Z = 1
B
1111 C or Z = 0
B
203