FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 88)

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CHAPTER 6 INSTRUCTION OVERVIEW
6.1 Instruction Formats
The FR family CPU uses six types of instruction format, TYPE-A through TYPE-F.
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Instruction Formats
All instructions used by the FR family CPU are written in the six formats shown in Figure 6.1-1.
Figure 6.1-1 Instruction Formats
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Relation between Bit Patterns "Ri" and "Rj" and Register Values
Table 6.1-1 shows the relation between general-purpose register numbers and field bit pattern values.
M S B L S B
16 b it s
8b it s
8b it s
4 b it s
4 b it s
4 b it s
4 b it s
OP
OP
Rj Ri
8b it s 4 b it s 4 b it s
OP u 4/m4/i4 Ri
8b it s 8b it s
OP u8 /rel 8 /dir/rli s t
12 b it s 4 b it s
OP Ri/R s
5 b it s 11 b it s
OP rel11
Ri i 8 /o 8
TYPE-A
TYPE-B
TYPE-C
TYPE-D
TYPE-F
TYPE-E
Table 6.1-1 General-purpose Register Numbers and Field Bit Pattern Values
Ri/Rj Register Ri/Rj Register Ri/Rj Register Ri/Rj Register
0000 R0 0100 R4 1000 R8 1100 R12
0001 R1 0101 R5 1001 R9 1101 R13
0010 R2 0110 R6 1010 R10 1110 R14
0011 R3 0111 R7 1011 R11 1111 R15