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You can use the predefined symbols r0 through r63 to refer to the D30V registers. You can also use sp as an alias for r63 and link as an alias for r62. The accumulators are a0 and a1.
The D30V also has predefined symbols for these control registers and status bits:
psw
Processor Status Word
bpsw
Backup Processor Status Word
pc
Program Counter
bpc
Backup Program Counter
rpt_c
Repeat Count
rpt_s
Repeat Start address
rpt_e
Repeat End address
mod_s
Modulo Start address
mod_e
Modulo End address
iba
Instruction Break Address
f0
Flag 0
f1
Flag 1
f2
Flag 2
f3
Flag 3
f4
Flag 4
f5
Flag 5
f6
Flag 6
f7
Flag 7
s
Same as flag 4 (saturation flag)
v
Same as flag 5 (overflow flag)
va
Same as flag 6 (sticky overflow flag)
c
Same as flag 7 (carry/borrow flag)
b
Same as flag 7 (carry/borrow flag)
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