Difference between revisions of "BPL"
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The Branch on Plus opcode (BPL) is a two-decle opcode that is a part of the [[Branch]] family of opcodes. This instruction causes the [[CP1610]] to branch if the [[Sign Flag]] is clear to the address specified by the following parameters.<br/> | The Branch on Plus opcode (BPL) is a two-decle opcode that is a part of the [[Branch]] family of opcodes. This instruction causes the [[CP1610]] to branch if the [[Sign Flag]] is clear to the address specified by the following parameters.<br/> | ||
| − | Format - Decle #1 Format - Word #2 ( | + | Format - Decle #1 Format - Word #2 (All 16 bits are significant) |
0000:0010:00d0:0011 aaaa:aaaa:aaaa:aaaa<br/> | 0000:0010:00d0:0011 aaaa:aaaa:aaaa:aaaa<br/> | ||
where:<br/> | where:<br/> | ||
Revision as of 18:46, 12 January 2005
| Instruction Name | Branch on Plus |
| Mnemonics | BPL |
| CP1610 Clock Cycles | 7 or 9 |
| Interruptible | Yes |
| Opcode Range | $0203, $0223 |
The Branch on Plus opcode (BPL) is a two-decle opcode that is a part of the Branch family of opcodes. This instruction causes the CP1610 to branch if the Sign Flag is clear to the address specified by the following parameters.
Format - Decle #1 Format - Word #2 (All 16 bits are significant) 0000:0010:00d0:0011 aaaa:aaaa:aaaa:aaaa
where:
d indicates the direction of the branch such that: d == 0 indicates to branch in the forward direction d == 1 indicates to branch in the reverse direction
aaaaaaaaaaaaaaaa indicates the amount of offset
See the Branch opcode family documentation for more information.
