MACH_DS5100
mips_machtype = MACH_DS5100;
[MACH_DS5100] "DECsystem 5100",
case MACH_DS5100: /* DS5100 MIPSmate */
case MACH_DS5100: /* DS5100 MIPSMATE */
if (mips_machtype == MACH_DS23100 || mips_machtype == MACH_DS5100)