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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
The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.