From Intellivision Wiki
m (Protected "BMI" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite)))
Latest revision as of 07:57, 4 December 2010
|Instruction Name||Branch on Minus|
|CP1610 Clock Cycles||7 or 9|
|Opcode Range||$020B, $022B|
The Branch on Minus opcode (BMI) 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 set to the address specified by the following parameters.
Format - Decle #1 Format - Word #2 (All 16 bits are significant) 0000:0010:00d0:1011 aaaa:aaaa:aaaa:aaaa
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.