Difference between revisions of "BNC"
Line 5: | Line 5: | ||
<tr><td>CP1610 Clock Cycles</td><td>7 or 9</td></tr> | <tr><td>CP1610 Clock Cycles</td><td>7 or 9</td></tr> | ||
<tr><td>Interruptible</td><td>Yes</td></tr> | <tr><td>Interruptible</td><td>Yes</td></tr> | ||
− | <tr><td>Opcode Range</td><td>$ | + | <tr><td>Opcode Range</td><td>$0209, $0229</td></tr> |
</table><br/> | </table><br/> | ||
Revision as of 17:13, 12 January 2005
Instruction Name | Branch on No Carry |
Mnemonics | BC |
CP1610 Clock Cycles | 7 or 9 |
Interruptible | Yes |
Opcode Range | $0209, $0229 |
The Branch on No Carry opcode (BNC) is a two-decle opcode that is a part of the Branch family of opcodes. This instruction causes the CP1610 to branch if the Carry Flag is clear to the address specified by the following parameters.
Format - Decle #1 Format - Word #2 (Unknown if all 16 bits are significant) 0000:0010:00d0:1001 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.