Instruction Formats 3–15
Figure 3–6: PALcode Instruction Format
The 26-bit PALcode function field specifies the operation. The source and destination oper-
ands for PALcode instructions are supplied in fixed registers that are specified in the individual
instruction descriptions.
An opcode of zero and a PALcode function of zero specify the HALT instruction.
031 26 25
Opcode PALcode Function