Integer Instructions
4-26 M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL MOTOROLA
Bcc Branch Conditionally Bcc
(M68000 Family)
Instruction Format:
Instruction Fields:
Condition field—The binary code for one of the conditions listed in the table.
8-Bit Displacement field—Twos complement integer specifying the number of bytes
between the branch instruction and the next instruction to be executed if the
condition is met.
16-Bit Displacement field—Used for the displacement when the 8-bit displacement
field contains $00.
32-Bit Displacement field—Used for the displacement when the 8-bit displacement
field contains $FF.
NOTE
A branch to the immediately following instruction automatically
uses the 16-bit displacement format because the 8-bit
displacement field contains $00 (zero offset).
1514131211109876543210
0110 CONDITION 8-BIT DISPLACEMENT
16-BIT DISPLACEMENT IF 8-BIT DISPLACEMENT = $00
32-BIT DISPLACEMENT IF 8-BIT DISPLACEMENT = $FF
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