8.26.2.3 Addressing Modes

as understands the following addressing modes for the SH. 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 pre-decrement

@Rn+

Register indirect with post-increment

@(disp, Rn)

Register indirect with displacement

@(R0, Rn)

Register indexed

@(disp, GBR)

GBR offset

@(R0, GBR)

GBR indexed

addr

@(disp, PC)

PC relative address (for branch or for addressing memory). The as implementation allows you to use the simpler form addr anywhere a PC relative address is called for; the alternate form is supported for compatibility with other assemblers.

#imm

Immediate data

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