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(as.info)D30V-Regs

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Register Names
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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)