SPARC Assembly Language Reference Manual

E.6.5 Graphics Status Register (GSR)

You use ASR 0x13 instructions RDASR and WRASR to access the Graphics Status Register.

Table E-14

SPARC 

Mnemonic 

Argument List 

Description 

RDASR

WRASR

rdasr

wrasr

%gsr, regrd

regrs1, reg_or_imm, %gsr

read GSR 

write GSR