Section 2 CPU
Rev. 3.00 Sep. 27, 2007 Page 18 of 758
REJ09B0243-0300
2.2 Register
Configuration
There are three types of registers: general registers (32-bit
×
16), control registers (32-bit
×
3), and
system registers (32-bit
×
4).
31
0
R0
*
1
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15, SP (hardware stack pointer)
*
2
31
9 8 7 6 5 4 3 2 1 0
0
0
31
M
GBR
31
VBR
Q I3 I2 I1 I0
S T
31
0
MACH
31
0
PR
31
0
PC
MACL
Notes: 1. R0 can be used as an index register in index register indirect or index GBR
indirect addressing mode. For some instructions, only R0 is used as the
source or destination register.
2. R15 is used as a hardware stack pointer during exception handling.
General register (Rn)
Status register (SR)
Global base register (GBR)
Vector base register (VBR)
Multiply and accumulate register (MAC)
Procedure register (PR)
Program counter (PC)
Figure 2.1 CPU Internal Register Configuration
Содержание SH7124 R5F7124
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Страница 68: ...Section 2 CPU Rev 3 00 Sep 27 2007 Page 48 of 758 REJ09B0243 0300 ...
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