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PROGRAMMING NUMERIC APPLICATIONS

Table 2·14.

Instruction

Set

Reference Data

FABS

FABS (no operands)

Exceptions:

I

Absolute value

Execution Clocks

Operands

Operand Word

Code

Coding

Example

Typical

Range

Transfers Bytes

(no operands)

14

10·17

0

2 FABS

FADD

FADD //source/destination,source

Exceptions:

I,

D,

0,

U,

P

Add real

Execution Clocks

Operands

Operand Word

Code

Coding

Example

Typical

Range

Transfers Bytes

//ST,ST(i)/ST(i),ST

85

70-100

0

2 FADD ST,ST(4)

short-real

105

90-120 2 2-4 FADD

AIR_TEMP [SI]

long-real

110 95-125 4 2-4 FADD [BX].MEAN

..

FADDP

FADDP destination, source

Exceptions:

I,

D,

0,

U,

P

Add real and pop

Execution

Clocks

Operands

Operand Word

Code

Coding

Example

Typical

Range

Transfers Bytes

ST(i),ST 90 75-105 0 2 FADDP ST(2),ST

FBLD

FBLD source

Exceptions:

I

Packed decimal

(BCD) load

Execution Clocks

Operands

Operand Word

Code

Coding

Example

Typical

Range

Transfers Bytes

packed-decimal

300

290-310 5

2-4 FBLD

YTD_SALES

FBSTP

FBSTP destination

Exceptions:

I

Packed decimal

(BCD) store and pop

Execution

Clocks

Operands

Operand Word Code

Coding

Example

Typical

Range

Transfers Bytes

packed-decimal

530

520-540

5

2-4

FBSTP [BX].FORECAST

2-24