Fujitsu FR60 Hardware Manual page 72

CHAPTER 3 CPU AND CONTROL UNITS
■ Logical Operation and Bit Manipulation
Logical operation instructions perform the AND, OR, and EOR logical operations between general-purpose
registers or a general-purpose register and memory (and I/O). Bit manipulation instructions directly
manipulate the contents of memory (and I/O).
They access memory using general register indirect addressing.
■ Direct Addressing
Direct addressing instructions are used for access between an I/O and a general-purpose register or between
an I/O and the memory. High-speed and high-efficiency access can be achieved since an I/O address is
directly specified in an instruction instead of using register indirect addressing. Indirect memory addressing
via registers with register incrementing or decrementing are provided for some instructions.
■ Other Types of Instructions
Other types of instructions include instructions that provide flag setting, stack manipulation, sign/zero
extension, and other functions in the PS register. Also, function entry and exit instructions that support
high-level languages and register multi-load/store instructions are provided.
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