Dedicated Registers - Fujitsu FR Family Instruction Manual

3.3

Dedicated Registers

The FR family has six 32-bit registers reserved for various special purposes, plus one
64-bit dedicated register for multiplication and division operations.
■ Dedicated Registers
The following seven dedicated registers are provided. For details, see the descriptions in Sections "3.3.1
Program Counter (PC)" through "3.3.6 Multiplication/Division Register (MD)".
●
32-bit Dedicated Registers
• Program counter (PC)
• Program status (PS)
• Table base register (TBR)
• Return pointer (RP)
• System stack pointer (SSP)
• User stack pointer (USP)
●
64-bit Dedicated Register
• Multiplication/Division Register (MD)
Figure 3.3-1 shows the configuration of the dedicated registers.
MD
Figure 3.3-1 Dedicated Register Configuration
PC
PS ILM
-
TBR
RP
SSP
USP
64 bits
CHAPTER 3 REGISTER DESCRIPTIONS
Reset entry address
ILM=01111
SCR=XX0
SCR CCR
-
CCR=XX00XXXX
000FFC00
Undefined
00000000
Undefined
Undefined
B
B
B
H
H
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