DSRERR ANDI R12,>FF00    Select RAM bank 0
       AI   R12,24
       LDCR @ZERO,4
       MOV  *R11,R1      Get error code
       SRL  R1,3
       SOC  R1,@PABBUF

       MOV  @PABADR,R1   Write back out to VDP RAM
       INC  R1
       ORI  R1,>4000
       SWPB R1
       MOVB R1,@VDPWA
       SWPB R1
       MOVB R1,@VDPWA
       NOP
       MOVB @PABBUF+1,@VDPWD
       B    @DSRRT
