Difference between revisions of "BGT"
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The Branch if Greater Than opcode (BGT) is a two-decle opcode that is a part of the [[Branch]] family of opcodes. This instruction causes the [[CP1610]] to branch if the <strong>both</strong> the [[Zero Flag]] is clear <strong>and</strong> the [[Sign Flag]] is equal to the [[Overflow Flag]]. If this condition is true, then the [[CP1610]] branches to the address specified by the following parameters.<br/> | The Branch if Greater Than opcode (BGT) is a two-decle opcode that is a part of the [[Branch]] family of opcodes. This instruction causes the [[CP1610]] to branch if the <strong>both</strong> the [[Zero Flag]] is clear <strong>and</strong> the [[Sign Flag]] is equal to the [[Overflow Flag]]. If this condition is true, then the [[CP1610]] branches 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) |
0000:0010:00d0:1101 aaaa:aaaa:aaaa:aaaa<br/> | 0000:0010:00d0:1101 aaaa:aaaa:aaaa:aaaa<br/> | ||
where:<br/> | where:<br/> | ||
Revision as of 18:52, 12 January 2005
| Instruction Name | Branch if Greater Than |
| Mnemonics | BGT |
| CP1610 Clock Cycles | 7 or 9 |
| Interruptible | Yes |
| Opcode Range | $020E, $022E |
The Branch if Greater Than opcode (BGT) is a two-decle opcode that is a part of the Branch family of opcodes. This instruction causes the CP1610 to branch if the both the Zero Flag is clear and the Sign Flag is equal to the Overflow Flag. If this condition is true, then the CP1610 branches to the address specified by the following parameters.
Format - Decle #1 Format - Word #2 (All 16 bits are significant) 0000:0010:00d0:1101 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.
