as: D30V-Addressing
9.11.2.6 Addressing Modes
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'as' understands the following addressing modes for the D30V. 'RN' in
the following refers to any of the numbered registers, but _not_ the
control registers.
'RN'
Register direct
'@RN'
Register indirect
'@RN+'
Register indirect with post-increment
'@RN-'
Register indirect with post-decrement
'@-SP'
Register indirect with pre-decrement
'@(DISP, RN)'
Register indirect with displacement
'ADDR'
PC relative address (for branch or rep).
'#IMM'
Immediate data (the '#' is optional and ignored)