Red Hat ENTERPRISE LINUX 3 - USING GCC Using Instructions page 177

Chapter 6. Extensions to the C Language Family
I
Integers from -255 to -1
J
Integers from 0 to 7--valid bit number in a register
K
Integers from 0 to 127--valid displacement for addressing mode
L
Integers from 1 to 127
M
Integer -1
N
Integer 1
O
Zero
P
Integers from 0 to 255
SPARC--
sparc.h
f
Floating-point register on the SPARC-V8 architecture and lower floating-point register on
the SPARC-V9 architecture.
e
Floating-point register. It is equivalent to
lower and upper floating-point registers on the SPARC-V9 architecture.
c
Floating-point condition code register.
d
Lower floating-point register. It is only valid on the SPARC-V9 architecture when the Visual
Instruction Set is available.
b
Floating-point register. It is only valid on the SPARC-V9 architecture when the Visual In-
struction Set is available.
h
64-bit global or out register for the SPARC-V8+ architecture.
on the SPARC-V8 architecture and contains both
f
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