Jimmy Pham
Miguel Aguilar
Computer Science 240-01
TuTh 2:30
Sept 23, 2019



#include <iostream>
using namespace std;
unsigned short a = 0, b = 0, c = 0, d = 0;
void displaybasetwo() {
	cout << "State of register: ";
	unsigned short b = 1 << 15;
	int y = a, t;
	for (int i = 1; i <= 16; ++i) {
		t = y & b;
		if (t == 0) { cout << '0'; }
		else { cout << '1'; }
		if (i % 4 == 0) { cout << ' '; }
		y = y << 1;
	}
}
void displaynumprint() {
	cout << "\n\tThe number of printers connected to the computer: " << b << endl;
}
void displaynumdrives() {
	cout << "\n\tThe number of floppy drives connected to the computer: " << c << endl;
}
void displayramcapa() {
	cout << "\n\tThe amount of ram in the computer: " << d << "GB" <<endl;
}
int main() {
	_asm {
		mov bx, 0xCE9C; //given register in prompt
		mov a, bx;
		call displaybasetwo; // Display register state
		mov cx, bx;
		shr cx, 14; //leave last two bits which represent num printers
		mov b, cx;
		call displaynumprint;
		mov cx, bx;
		shl cx, 8; //remove bits 9-16
		shr cx, 14; //remove bits 1-6, leaving bits 7 and 8 (14 comes from 8[reverse the left shift]+6)
		mov c, cx;
		inc c;
		call displaynumdrives;
		mov ax, bx;
		shl ax, 12; //remove bits 5-16
		shr ax, 14; //remove bits 1-2, leaving bits 3 and 4 (14 comes from 12[reverse the left shift]+2)
		imul ax, 16;
		add ax, 16;
		mov d, ax;
		call displayramcapa;
	}
	return 0;
}


#include <iostream>
using namespace std;
unsigned short a = 0;
short total = 0, c = 0;
void displaybasetwo() {
	cout << "State of register: ";
	unsigned short b = 1 << 15;
	int y = a, t;
	for (int i = 1; i <= 16; ++i) {
		t = y & b;
		if (t == 0) { cout << '0'; }
		else { cout << '1'; }
		if (i % 4 == 0) { cout << ' '; }
		y = y << 1;
	}
}
void countsprinklers() {
	cout << "\n" << total << " sprinklers are ON" << endl;
}
void displayBits() {
	cout << c << " ";
}
int main() {
	_asm {
		mov bx, 0x6A2F; //given register in prompt
		mov ax, bx;
		mov a, bx;
		call displaybasetwo; // Display register state
		mov cx, 0x0001;
		mov c, 1;
	FORLOOP:
		cmp c, 16;
		je EXIT;
		AND ax, cx;
		add total, ax;
		shr bx, 1;
		mov ax, bx;
		mov cx, 0x0001;
		inc c;
		jmp FORLOOP;
	EXIT:
		call countsprinklers;
	}
	cout << "Defective sprinklers: ";
	_asm {
		mov bx, 0x6A2F; //given register in prompt
		mov ax, bx;
		mov cx, 0x1000;
		shl cx, 3;
		mov c, 16;
	FORLOOP2:
		cmp c, 1;
		je EXIT2;
		AND ax, cx;
		cmp ax, 0;
		je DISPLAYBIT;
		shl bx, 1;
		mov ax, bx;
		mov cx, 1000000000000000b;
		dec c;
		jmp FORLOOP2;
	DISPLAYBIT:
		call displayBits;
		dec c;
		shl bx, 1;
		mov ax, bx;
		mov cx, 1000000000000000b;
		jmp FORLOOP2;
	EXIT2:

	}
	return 0;
}


#include <iostream>
#include <ctime>
using namespace std;
unsigned short a = 0, b = 0, c = 0;
void randomizeregister() {
	b = rand() % 65535; //gives random number within ushrt_max
	b = b << 1; //left shift by one to guarantee first floor is 0
}
void displaybasetwo() {
	cout << "State of register: ";
	unsigned short b = 1 << 15;
	int y = a, t;
	for (int i = 1; i <= 16; ++i) {
		t = y & b;
		if (t == 0) { cout << '0'; }
		else { cout << '1'; }
		if (i % 4 == 0) { cout << ' '; }
		y = y << 1;
	}
}
void displaystops() {
	cout << "\nElevator will stop at floors no. ";
}
void displayBit() {
	cout << c << " ";
}
int main() {
	srand((unsigned int)time(NULL)); // Initialize randomization using time as seed
	_asm {
		call randomizeregister; // Randomize the register
		mov bx, b;
		mov a, bx;
		call displaybasetwo; // Display register state
		//DISPLAY STOPS
		call displaystops;
		mov ax, bx;
		mov c, 16;
		mov cx, 1000000000000000b; //cx = 1000 0000 0000 0000
	FORLOOP:
		cmp c, 1;
		je EXIT;
		AND ax, cx;
		cmp ax, 0;
		jne DISPLAYBIT;
		shl bx, 1;
		mov ax, bx;
		mov cx, 1000000000000000b;
		dec c;
		jmp FORLOOP;
	DISPLAYBIT:
		call displayBit;
		shl bx, 1;
		mov ax, bx;
		mov cx, 1000000000000000b;
		dec c;
		jmp FORLOOP;
	EXIT:

	}
	return 0;
}