Chapter 16. D30V Dependent Features

107

b

Same as flag 7 (carry/borrow flag)

16.2.6. Addressing Modes

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)

16.3. Floating Point

The D30V has no hardware floating point, but the

.float

and

.double

directives generates ieee

floating point numbers for compatibility with other development tools.

16.4. Opcodes

For detailed information on the D30V machine instruction set, see [D30V Architecture: A VLIW Mi 

croprocessor for Multimedia Applications] (Mitsubishi Electric Corp.).

as

implements all the standard

D30V opcodes. The only changes are those described in the section on size modifiers