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Intel 8XC196NP, 80C196NU, Microcontroller manual Jgt, JLE Jump if Signed Less than or Equal

Models: Microcontroller 80C196NU 8XC196NP

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INSTRUCTION SET REFERENCE

 

 

 

Table A-6. Instruction Set (Continued)

 

 

 

 

 

 

 

 

 

 

 

Mnemonic

 

 

 

Operation

 

 

 

 

Instruction Format

 

 

 

 

 

JGT

JUMP IF SIGNED GREATER THAN. Tests

 

 

 

both the zero flag and the negative flag. If

JGT

cadd

 

either flag is set, control passes to the next

 

(11010010) (disp)

 

sequential instruction. If both flags are clear,

 

 

 

 

this instruction adds to the program counter

 

 

 

the offset between the end of this instruction

NOTE: The displacement (disp) is sign-

 

and the target label, effecting the jump. The

 

 

extended to 24 bits.

 

offset must be in the range of –128 to +127.

 

 

 

 

 

if N = 0 AND Z = 0 then

 

 

 

 

 

 

 

PC ← PC + 8-bit disp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSW Flag Settings

 

 

 

 

 

 

Z

N

C

 

V

VT

ST

 

 

 

 

 

—

—

— —

—

—

 

 

 

 

 

 

 

 

JH

JUMP IF HIGHER (UNSIGNED). Tests both

 

 

 

the zero flag and the carry flag. If either the

JH

cadd

 

carry flag is clear or the zero flag is set,

 

(11011001) (disp)

 

control passes to the next sequential

 

 

 

 

instruction. If the carry flag is set and the zero

 

 

 

flag is clear, this instruction adds to the

NOTE: The displacement (disp) is sign-

 

program counter the offset between the end

 

 

extended to 24 bits.

 

of this instruction and the target label,

 

 

 

 

 

effecting the jump. The offset must be in

 

 

 

range of –128 to +127.

 

 

 

 

 

 

 

if C = 1 AND Z = 0 then

 

 

 

 

 

 

 

PC ← PC + 8-bit disp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSW Flag Settings

 

 

 

 

 

 

Z

N

C

 

V

VT

ST

 

 

 

 

 

—

—

— —

—

—

 

 

 

 

 

 

 

 

JLE

JUMP IF SIGNED LESS THAN OR EQUAL.

 

 

 

Tests both the negative flag and the zero flag.

JLE

cadd

 

If both flags are clear, control passes to the

 

(11011010) (disp)

 

next sequential instruction. If either flag is set,

 

 

 

 

this instruction adds to the program counter

 

 

 

the offset between the end of this instruction

NOTE: The displacement (disp) is sign-

 

and the target label, effecting the jump. The

 

 

extended to 24 bits.

 

offset must be in the range of –128 to +127.

 

 

 

 

 

if N = 1 OR Z = 1 then

 

 

 

 

 

 

 

PC ← PC + 8-bit disp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSW Flag Settings

 

 

 

 

 

 

Z

N

C

 

V

VT

ST

 

 

 

 

 

—

—

— —

 

—

—

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A-23

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Page 328
Image 328
Intel 8XC196NP, 80C196NU, Microcontroller manual Jgt, JLE Jump if Signed Less than or Equal
Page 327 Page 329

Microcontroller, 80C196NU, 8XC196NP specifications

The Intel 8XC196NP and 80C196NU microcontrollers are part of Intel's renowned 16-bit microcontroller series that gained popularity in the 1980s and 1990s for embedded systems applications. Designed for a variety of applications, these microcontrollers are characterized by their robust performance, versatility, and industry-standard architecture.

The 8XC196NP features an enhanced instruction set with over 100 instructions, allowing for efficient code execution. It operates at clock speeds up to 16 MHz, which contributes to improved performance in time-sensitive applications. The microcontroller is equipped with a 16-bit data bus, enabling more efficient data handling compared to its 8-bit predecessors, thus accommodating complex algorithms and large data sets.

In terms of memory architecture, the 8XC196NP supports an addressable memory space of up to 64 KB of program memory and 64 KB of data memory. This configuration provides sufficient space for large applications while ensuring fast data access. The microcontroller includes integrated features such as timers, serial I/O capabilities, and interrupt processing, which enhance its functionality for real-time applications and control mechanisms.

The 80C196NU, on the other hand, is designed for lower power operation, making it suitable for battery-powered devices. This microcontroller maintains similar features to the 8XC196NP while offering advancements that support low-power consumption. The 80C196NU can also function in a range of temperature environments, making it adaptable for industrial applications.

Both the 8XC196NP and 80C196NU support external memory interfacing, allowing designers to expand the system's capability by connecting additional ROM and RAM. This flexibility makes them appealing for developing complex systems, such as motor controls, industrial automation, and consumer electronics.

Another standout feature of these microcontrollers is their built-in debugging capabilities. Intel provided hardware and software tools that enabled developers to test and troubleshoot their applications effectively, reducing the development time and increasing reliability.

Overall, the Intel 8XC196NP and 80C196NU microcontrollers stand out for their dependability, versatility, and performance, contributing significantly to the evolution of embedded system design. Their legacy continues to influence modern microcontroller technology, ensuring their relevance in a wide array of applications today.