[^:]*: Assembler messages: [^:]*:12: Error: SRS base register must be r13 -- `srsdb r4,#13' [^:]*:13: Error: SRS base register must be r13 -- `srsda r4,#13' [^:]*:14: Error: SRS base register must be r13 -- `srsia r4,#13' [^:]*:15: Error: SRS base register must be r13 -- `srsib r4,#13'