Intel 64 and IA-32 Architectures Software Developers Manual Volume 2A, Instruction Set Reference, A-M
Vol. 2 3-3
INSTRUCTION SET REFERENCE, A-M
CH No
REX
prefix
5BP No
REX
prefi
x
5EBP No
REX
prefix
5 N/A N/A N/A
DH No
REX
prefix
6SI No
REX
prefi
x
6ESI No
REX
prefix
6 N/A N/A N/A
BH No
REX
prefix
7DI No
REX
prefi
x
7EDI No
REX
prefix
7 N/A N/A N/A
SPL Any
REX
Prefix
4SP 0 4ESP 0 4 RSP0 4
BPL Any
REX
Prefix
5BP 0 5EBP 0 5 RBP0 5
SIL Any
REX
Prefix
6SI 0 6ESI 0 6 RSI 0 6
DIL Any
REX
Prefix
7DI 0 7EDI 0 7 RDI0 7
Registers R8 - R15 (see below): Available in 64-Bit Mode Only
R8L 1 0 R8W 1 0 R8D 1 0 R8 1 0
R9L 1 1 R9W 1 1 R9D 1 1 R9 1 1
R10L 1 2 R10W 1 2 R10D 1 2 R10 1 2
R11L 1 3 R11W 1 3 R11D 1 3 R11 1 3
R12L 1 4 R12W 1 4 R12D 1 4 R12 1 4
R13L 1 5 R13W 1 5 R13D 1 5 R13 1 5
R14L 1 6 R14W 1 6 R14D 1 6 R14 1 6
R15L 1 7 R15W 1 7 R15D 1 7 R15 1 7
Table 3-1. Register Codes Associated With +rb, +rw, +rd, +ro (Contd.)
rb rw rd ro (64-Bit Mode only)
Register
REX.R
Reg Field
Register
REX.R
Reg Field
Register
REX.R
Reg Field
Register
REX.R
Reg Field