Texas Instruments MSP50C6xx User Manual
Page 158
Legend
4-72
Symbol
Meaning
n
R
Value in repeat counter loaded by RPT instructions
ns
Value in string register STR
OF
Overflow flag
offset[n]
n bit offset from a reference register.
OM
Overflow mode
PC
Program counter, 16 bits
pma[n]
n bit program memory address. For example, pma8 means 8-bit program memory address. If n is
not specified, defaults to pma16.
port[n]
n bit I/O port address. Certain instructions multiply this port address by 4.
PH
Product high register, 16 bits
PL
Product low register, 16 bits (cannot be read/written directly)
R
Rx register treated as a general purpose register. This bit is not related to any addressing mode.
RCF
Register carry flag
Rx
Indirect register x where x = 0..7
RZF
Register zero flag
s
Represents string mode if 1, otherwise normal mode.
SF
Sign flag
STAT
Status register, 17 bits
STR
String register, 8 bits
SV
Shift value register, 4 bits
TAG
Memory tag
TF1
Test flag 1
TF2
Test flag 2
TOS
Top of stack register, 16 bits
UM
Unsigned mode
w
Word(s) taken by instruction
x
Don’t care
XM
Extended sign mode
XSF
Transfer (TX) sign flag
XZF
Transfer (TX) zero flag
ZF
Zero flag