8.7.2.5 Register Names

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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