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Chapter 32. PDP 11 Dependent Features

 mfis |  mkev11

 mno fis |  mno kev11

Enable (or disable) the use of the KEV11 floating point instructions:

FADD

,

FDIV

,

FMUL

, and

FSUB

.

 mfpp |  mfpu |  mfp 11

 mno fpp |  mno fpu |  mno fp 11

Enable (or disable) the use of FP 11 floating point instructions:

ABSF

,

ADDF

,

CFCC

,

CLRF

,

CMPF

,

DIVF

,

LDCFF

,

LDCIF

,

LDEXP

,

LDF

,

LDFPS

,

MODF

,

MULF

,

NEGF

,

SETD

,

SETF

,

SETI

,

SETL

,

STCFF

,

STCFI

,

STEXP

,

STF

,

STFPS

,

STST

,

SUBF

, and

TSTF

.

 mlimited eis |  mno limited eis

Enable (or disable) the use of the limited extended instruction set:

MARK

,

RTT

,

SOB

,

SXT

, and

XOR

.

The  mno limited eis options also implies  mno eis.

 mmfpt |  mno mfpt

Enable (or disable) the use of the

MFPT

instruction.

 mmultiproc |  mno multiproc

Enable (or disable) the use of multiprocessor instructions:

TSTSET

and

WRTLCK

.

 mmxps |  mno mxps

Enable (or disable) the use of the

MFPS

and

MTPS

instructions.

 mspl |  mno spl

Enable (or disable) the use of the

SPL

instruction.

Enable (or disable) the use of the microcode instructions:

LDUB

,

MED

, and

XFC

.

32.1.3. CPU Model Options

These options enable the instruction set extensions supported by a particular CPU, and disables all

other extensions.

 mka11

KA11 CPU. Base line instruction set only.

 mkb11

KB11 CPU. Enable extended instruction set and

SPL

.

 mkd11a

KD11 A CPU. Enable limited extended instruction set.