1991/1106/ss/l.s (diff list | history)

1991/1105/sys/src/9/ss/l.s:119,125 – 1991/1106/sys/src/9/ss/l.s:119,125 (short | long | prev | next)
1991/1006
1990/1226		RETURN TEXT touser(SB), $-4
1991/1106		TEXT touser(SB), $0
1991/1105		MOVW $(SYSPSR&~PSREF), R8 MOVW R8, PSR
1990/1226		OR R0, R0
1991/1105/sys/src/9/ss/l.s:187,196 – 1991/1106/sys/src/9/ss/l.s:187,196
1991/0112		MOVD R28, (4*28)(R1) MOVD R30, (4*30)(R1)
1990/1226		/* SP and SB and u and m are already set; away we go */ MOVW R1, -4(R1) /* pointer to Ureg */
1991/1106		MOVW R1, R7 /* pointer to Ureg */
1990/1226		SUB $8, R1 MOVW $SYSPSR, R7 MOVW R7, PSR
1991/1106		MOVW $SYSPSR, R8 MOVW R8, PSR
1990/1226		OR R0, R0 OR R0, R0 OR R0, R0
1991/1105/sys/src/9/ss/l.s:272,281 – 1991/1106/sys/src/9/ss/l.s:272,281
1990/1226		/* now our registers R8-R31 are same as before trap */ MOVW R15, (4*15)(R1) /* SP and SB and u and m are already set; away we go */ MOVW R1, -4(R1) /* pointer to Ureg */
1991/1106		MOVW R1, R7 /* pointer to Ureg */
1990/1226		SUB $8, R1 MOVW $SYSPSR, R7 MOVW R7, PSR
1991/1106		MOVW $SYSPSR, R8 MOVW R8, PSR
1990/1226		JMPL syscall(SB) /* R7 contains return value from syscall */