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You can use the predefined symbols `r0' through `r15' to refer to the D10V registers. You can also use `sp' as an alias for `r15'. The accumulators are `a0' and `a1'. There are special register-pair names that may optionally be used in opcodes that require even-numbered registers. Register names are not case sensitive.
Register Pairs
r0-r1
r2-r3
r4-r5
r6-r7
r8-r9
r10-r11
r12-r13
r14-r15
The D10V 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
c
Carry flag
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