Lc-3 Trap Input Instruction

lc-3 trap input instruction

TRAPs and Subroutines Department of Computer

Memory mapped I/O Input and Output are handled by load/store instructions using memory ad- [7:0] of an instruction; used with the TRAP op-

lc-3 trap input instruction

EE 306 Programming Assignment 3

isters), input and output devices, The LC-3 ISA has 15 instructions, each identified by its unique opcode. The TRAP reserved Figure 5.3

lc-3 trap input instruction

Chapter 9 Want process isolation TRAP Routines and Subroutines

n One 16-bit input bus: DR SelSR1 SelSR2 SR1 SR1 SelSR1 (and affected by) instructions LC-3 Architecture 6 w PC (program counter),CC (condition TRAP LC-3

lc-3 trap input instruction

LC-3 Details and Examples CS/ECE 252

LC-3 TRAP Routines Textbook Chapter In LC-3, this is done through the TRAP Example of TRAP Instruction AGAIN TRAP x23; Input character ADD R1, R2, R0 ;

Lc-3 trap input instruction
TRAPs and Subroutines Department of Computer
lc-3 trap input instruction

Assembly Language Cal Poly

LC-3 TRAP Mechanism 1. TRAP Instruction 15 14 13 12 11 10 9 > save R7 before TRAP > save RO before TRAP x23 (input character)

lc-3 trap input instruction

LC-3 Instruction Processing Courses

Chapter 5 The LC-3 Based on slides LC-3 Instruction Summary (inside back cover) 5-6 Operate Instructions Only three operations Input •Numbers start at

lc-3 trap input instruction

Assembly Language Albany

input A (SR1) to bus to move to MDR. For LD, MDR is One more instruction: TRAP. 100-the-lc-3-isa Author: Steve

lc-3 trap input instruction

Lecture 18 18Apr13 Input & Output Chap. 9 TRAP

Now write a routine that takes a sequence of 10 characters from the keyboard (echoing each character as it using the LEA instruction: Input TRAP x23 ; input

lc-3 trap input instruction

Operating System Calls SystemCall LC-3 TRAP Mechanism TRAP

LC-3 assembly language lets Load ASCII difference AGAIN TRAP x23 ; input and Subroutines System Calls System Call LC-3 TRAP Mechanism TRAP Instruction

lc-3 trap input instruction

Assembly Language Cal Poly

Chapter 9 TRAP Routines and Subroutines LC-3 TRAP Mechanism 1. A set of service routines. TRAP instruction.

lc-3 trap input instruction

LC-3 Architecture Branch instruction - YouTube

Input Forming Logic F F F F F F LC-3 Datapath. LC3-3 LC-3 Control IR PC enaMARM enaPC enaALU enaMDR ALU B A. TRAP …

lc-3 trap input instruction

Jump to Subroutine Instruction (JSR) Penn State

1 Answer to a. How many trap service routines can be implemented in the LC-3? Why? b. Why must a RET instruction be used to return from a TRAP …

lc-3 trap input instruction

input and output Description LC3 allows input from

LC-3 Instructions Page 1 of 16 LC-3 Instruction Summary TRAP x20 TRAP x21 TRAP x22 TRAP x23 TRAP x25 GETC OUT

Lc-3 trap input instruction - 10 The starting address of the trap routine is stored at

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