MAS281 datasheet(25/55 Pages) DYNEX

25 / 55 page

MAS281

25/55

Operation

Op Code/Ext

Mnemonic

Format

Cycles *

CONVERT

Convert Floating-Point to 16-Bit

FIX

4.25

4.5a

Integer

Convert 16-Bit Integer to Floating-

FLT

Point

Convert Extended-Precision

EFIX

12.25

6.25a

Floating-Point to 32-Bit Integer

Convert 32-Bit Integer to

EFLT

7.5

3.5a

Extended-Precision Floating-Point

STACK

Stack IC and Jump to Subroutine

SJS

D, DX

Unstack IC and return from

Subroutine

URS

Pop Multiple registers off the

Stack

POPM

2.5+n

2.25+n

4.25a

(n=O to 15)

Push Multiple Registers on to the

Stack

PSHM

1 + n

4.5 + n

(n=O to 15)

I/O (See l/O Command Summary)

Execute l/O

XlO**

IM,IMX

3.583

6.277a

Vectored l/O

VlO**

D,DX

SPECIAL

Built-ln Function Call

BIF

Move Multiple Words, Memory-to-

MOV

1+4n

1+3n

1+2na

Memory

Exchange Words in Registers

XWR

Load Status

LST**

D, DX

LSTI**

I, IX

No Operation

NOP

Break Point

BPT

* M = memory, P = processor (5 OSC cycles), B = processor (6 OSC cycles),

a = average if more than one alternative exists

** Priveleged instruction

Table 7a: Instruction Summary (continued)

MAS281 数据表(PDF) 25 Page - Dynex Semiconductor

MAS281 数据表(HTML) 25 Page - Dynex Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

数据表下载