From c72ae9a2071ab29dd8fcd246f9384d30ffd34734 Mon Sep 17 00:00:00 2001
From: Richard Dzreke <rjdzreke@dons.usfca.edu>
Date: Sun, 22 Sep 2024 20:59:30 -0700
Subject: [PATCH] update

---
 Makefile          |   5 ++-
 user/a.out        | Bin 0 -> 17512 bytes
 user/array.c      | 104 ++++++++++++++++++++++++++++++++++++++++++++++
 user/array.h      |  13 ++++++
 user/arraytests.c |  49 ++++++++++++++++++++++
 user/mittens.c    |  40 ++++++++++++++++++
 user/vagabound.c  |  49 ++++++++++++++++++++++
 7 files changed, 258 insertions(+), 2 deletions(-)
 create mode 100755 user/a.out
 create mode 100644 user/array.c
 create mode 100644 user/array.h
 create mode 100644 user/arraytests.c
 create mode 100644 user/mittens.c
 create mode 100644 user/vagabound.c

diff --git a/Makefile b/Makefile
index 2584e4a..5168403 100644
--- a/Makefile
+++ b/Makefile
@@ -87,7 +87,7 @@ $U/initcode: $U/initcode.S
 tags: $(OBJS) _init
 	etags *.S *.c
 
-ULIB = $U/ulib.o $U/usys.o $U/printf.o $U/umalloc.o
+ULIB = $U/ulib.o $U/usys.o $U/printf.o $U/umalloc.o $U/array.o
 
 _%: %.o $(ULIB)
 	$(LD) $(LDFLAGS) -T $U/user.ld -o $@ $^
@@ -103,7 +103,7 @@ $U/usys.o : $U/usys.S
 $U/_forktest: $U/forktest.o $(ULIB)
 	# forktest has less library code linked in - needs to be small
 	# in order to be able to max out the proc table.
-	$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $U/_forktest $U/forktest.o $U/ulib.o $U/usys.o $U/umalloc.o $U/printf.o
+	$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $U/_forktest $U/forktest.o $U/printf.o $U/umalloc.o $U/array.o $U/ulib.o  $U/usys.o
 	$(OBJDUMP) -S $U/_forktest > $U/forktest.asm
 
 mkfs/mkfs: mkfs/mkfs.c $K/fs.h $K/param.h
@@ -116,6 +116,7 @@ mkfs/mkfs: mkfs/mkfs.c $K/fs.h $K/param.h
 .PRECIOUS: %.o
 
 UPROGS=\
+	$U/_arraytests\
 	$U/_cat\
 	$U/_echo\
 	$U/_forktest\
diff --git a/user/a.out b/user/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..1ca5f21034a3cda7957397fa5fc43d099048f972
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diff --git a/user/array.c b/user/array.c
new file mode 100644
index 0000000..41257f2
--- /dev/null
+++ b/user/array.c
@@ -0,0 +1,104 @@
+#include "kernel/types.h"
+#include "kernel/stat.h"
+#include "kernel/fcntl.h"
+#include "user/user.h"
+
+//
+// wrapper so that it's OK if main() does not call exit().
+//
+
+
+/*
+*reverses the values of an array of any type in java
+*/
+void
+reverseArray(int* arr, uint64 size){
+	int start = 0;
+	int end = size - 1;
+
+	//switches the values at opposite ends until indexes start and end meet
+	while(start < end){
+		int temp = arr[start];
+		arr[start++] = arr[end];
+		arr[end--] = temp;
+	}	
+}
+
+/*
+*helper method used to swap elements
+*/
+void
+swap(int *arr, uint64 a, uint64 b){
+	int temp = arr[a];
+	arr[a] = arr[b];
+	arr[b] = temp;
+}
+
+/*
+*splits the integer array in subarrays that will be sorted
+*/
+uint64
+partition(int *arr, uint64 low, uint64 high){
+	int pivot = arr[high];// makes the last element the pivot
+	uint64 i = low - 1; //index of the smaller element
+
+	for(uint64 j = low; j < high; j++){
+		//if current element is smaller than or equal to pivot
+		//it goes on the left side of the sub array
+		if(arr[j] <= pivot){
+			i++;
+			//swap is performed between the indexs
+			swap(arr, j, i);
+		}
+	}
+	//pivot is in it's correct position
+	swap(arr, i + 1, high);
+	return i + 1; //returns the partition index
+}
+
+/*
+*recursively sorts the elements using quick sort algorithm
+*/
+void
+sort(int* arr, uint64 low, uint64 high){
+	if(low < high){
+		uint64 pt_index = partition(arr, low, high);
+
+		sort(arr, low, pt_index - 1);
+		sort(arr, pt_index + 1, high);
+	}
+	
+}
+
+/*
+*gets the max value of an integer array
+*/
+int
+getMax(int* arr, uint size){
+	int max = -2147483648;
+
+	//loops through whole array and find the max
+	for(uint64 i = 0; i < size - 1; i++){
+		if(arr[i] > max){
+			max = arr[i];
+		}
+	}
+	
+	return max;
+}
+
+/*
+*gets the smallest intefer value inside an array
+*/
+int
+getMin(int* arr, uint64 size){
+	int min = 2147483647;
+
+	//loops through the whole array and finds min
+	for(uint64 i = 0; i < size - 1; i++){
+		if(arr[i] <  min){
+			min = arr[i];
+		}
+	}
+	return min;	
+}
diff --git a/user/array.h b/user/array.h
new file mode 100644
index 0000000..6e5a390
--- /dev/null
+++ b/user/array.h
@@ -0,0 +1,13 @@
+//array.c
+//reverse the values of an integer array in java
+void reverseArray(int*, uint64);
+//sorts in integer array using quicksort
+void sort(int*, uint64, uint64);
+//swap method using to swap values in quicksort algorithm
+void swap(int*, uint64, uint64);
+//parttitions the array on integers into sub arrays
+uint64 partition(int*, uint64, uint64);
+//get's the max element of an array
+int getMax(int*, uint64);
+//gets the min element of an array
+int getMin(int*, uint64);
diff --git a/user/arraytests.c b/user/arraytests.c
new file mode 100644
index 0000000..257ab94
--- /dev/null
+++ b/user/arraytests.c
@@ -0,0 +1,49 @@
+#include "kernel/types.h"
+#include "user/user.h"
+#include "kernel/fcntl.h"
+#include "user/array.h"
+
+int
+main(void){
+	int arr[10] = {5, -4, 2, 22, 12, -56, 3, 8, 34, 2};
+
+	uint64 size = sizeof(arr) / sizeof(arr[0]);
+	printf("size: %d\n", size);
+
+	printf("Array before: ");
+	for(int  i = 0; i < size; i++){
+		printf("%d ", arr[i]);
+	}
+
+	printf("\n");
+
+	reverseArray(arr, size);
+
+	printf("Array in reverse: ");
+	
+	for(int i = 0; i < size ; i++){
+		printf("%d ", arr[i]);
+	}
+
+	printf("\n");
+
+	uint64 min = getMin(arr, size);
+	printf("Get min value: ");
+	printf("%d \n", min);
+
+	uint64 max = getMax(arr, size);
+	printf("Get max value: ");
+	printf("%d \n", max);
+
+	sort(arr, 0, size - 1);
+	
+	printf("sorted array: ");
+	for(int i = 0; i < size; i++){
+		printf("%d ", arr[i]);
+	}
+
+
+	
+	return 0;
+}
+
diff --git a/user/mittens.c b/user/mittens.c
new file mode 100644
index 0000000..519dbcf
--- /dev/null
+++ b/user/mittens.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+int
+main(void){
+
+			    
+	//created everything by myself 		
+	printf("\t\t_____                                _____\n");
+    printf("\t\t##--##                              ##--##\n");
+	printf("\t\t##---##                            ##---##\n");
+	printf("\t\t##----##                          ##----##\n");
+    printf("\t\t##-----##                        ##-----##\n");
+	printf("\t\t##------##                      ##------##\n");
+	printf("\t\t##########################################\n");
+	printf("\t\t##......................|#################\n");   
+	printf("\t\t##......................|#################\n");
+	printf("\t\t##.._________...........|####--------#####\n");
+	printf("\t\t##..|  __   |...........|###|	__   |####\n");
+    printf("\t\t##..| (__)  |...........|###|  (__)  |####\n");	
+	printf("\t\t##..|_______|...........|###|________|####\n");
+	printf("\t\t##......................|#################\n");
+	printf("\t\t##......................|---------------##\n");
+	printf("\t\t##......................................##\n");
+	printf("\t\t##.........------#######------..........##\n");
+	printf("\t\t##.........-------#####-------..........##\n");
+	printf("\t####### ##.........--------###--------..........## #######\n");
+	printf("\t####### ##..................|...................## #######\n");
+	printf("\t####### ##..............\\../.\\../...............## #######\n");
+	printf("\t####### ##...............\\/...\\/................## #######\n");
+	printf("\t####### ##......................................## #######\n");
+	printf("\t####### ########################################## #######\n\n");
+    printf(" ######  #### ##    ## \t\t########  ####  ######   ######  ##     ## #### ########  ######\n");
+    printf("##    ##  ##  ###   ## \t\t##     ##  ##  ##    ## ##    ## ##     ##  ##     ##    ##    ##\n"); 
+    printf("##        ##  ####  ## \t\t##     ##  ##  ##       ##       ##     ##  ##     ##    ##      \n");
+    printf(" ######   ##  ## ## ## \t\t########   ##   ######  ##       ##     ##  ##     ##     ###### \n"); 
+    printf("      ##  ##  ##  #### \t\t##     ##  ##        ## ##       ##     ##  ##     ##          ##\n"); 
+    printf("##    ##  ##  ##   ### \t\t##     ##  ##  ##    ## ##    ## ##     ##  ##     ##    ##    ##\n"); 
+    printf(" ######  #### ##    ## \t\t########  ####  ######   ######   #######  ####    ##     ###### \n");  
+
+	return 0; 
+}
diff --git a/user/vagabound.c b/user/vagabound.c
new file mode 100644
index 0000000..4d03d6f
--- /dev/null
+++ b/user/vagabound.c
@@ -0,0 +1,49 @@
+#include <stdio.h>
+
+int 
+main(void){
+	//created the title and the quote myself, and the art was pulled from onine
+	printf("##     ##    ###     ######      ###    ########   #######  ##     ## ##    ## ########\n");
+	printf("##     ##   ## ##   ##    ##    ## ##   ##     ## ##     ## ##     ## ###   ## ##     ##\n");
+	printf("##     ##  ##   ##  ##         ##   ##  ##     ## ##     ## ##     ## ####  ## ##     ##\n");
+	printf("##     ## ##     ## ##   #### ##     ## ########  ##     ## ##     ## ## ## ## ##     ##\n");
+	printf(" ##   ##  ######### ##    ##  ######### ##     ## ##     ## ##     ## ##  #### ##     ##\n");
+	printf("  ## ##   ##     ## ##    ##  ##     ## ##     ## ##     ## ##     ## ##   ### ##     ##\n");
+	printf("   ###    ##     ##  ######   ##     ## ########   #######   #######  ##    ## ########\n\n");
+	printf("  A river cuts through rock, not beacuse of its power, but because of its persistence\n\n");																		
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣟⠋⡴⠫⠉⠀⡴⠦⠌⠛⠿⠟⠛⣯⣻⣿⣻⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣏⠀⢁⠀⠀⠀⠀⠀⠀⠀⠓⠚⠛⠟⢙⣩⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣟⠀⠀⠀⠀⠀⠀⠀⠀⢠⣤⣹⡿⣿⣸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠛⠛⠻⠟⠛⠻⣻⢿⡟⠐⠀⠀⠀⠀⠀⠀⠁⠈⠛⡫⠵⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡟⠁⠀⠀⠀⠀⠀⠀⠀⠁⠂⠘⠀⠀⠀⠀⠀⠀⠀⠀⠀⠁⠒⢠⣵⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣾⣿⣿⡿⠛⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢨⣿⣄⡀⠀⠶⣤⡄⠀⣶⣿⣿⡇⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣇⣿⣿⠃⡐⠀⠀⠀⠀⠀⠀⠀⠀⠄⠀⠀⠀⡀⠀⠈⣟⡟⠀⣶⣶⣖⣤⢻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⡿⣻⣿⣬⠉⠐⠀⠀⠀⠀⠠⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⠸⠥⢾⣿⣾⡟⣿⣸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣷⣼⢿⣿⠀⠀⠀⠀⠀⠠⠀⠐⠈⠄⠂⠀⠐⠠⡄⠄⠀⠀⠀⠈⡉⣡⡨⠍⠻⢛⢽⣶⣿⣽⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣶⠆⣤⣰⡌⢿⣆⠀⠀⠀⠀⠀⠀⠀⠐⠛⠢⠀⠀⠀⠀⠀⠉⠈⠠⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠁⠙⢀⣴⠨⣛⡆⢣⡤⣄⠀⠀⠈⠁⠀⠐⠘⢂⠀⠀⠀⠀⠈⠲⡌⡚⢻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢨⣲⠺⠋⠀⠻⢧⣹⣷⣗⢳⡄⠀⢨⠓⠃⡠⠔⢁⡀⠀⠀⠀⠀⢀⢻⡑⠹⣿⣽⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⣿⣿⡟⣙⡿⢿⣿⣿⣿⡸⡇⢒⣬⣾⣾⣣⣷⣻⣿⣎⢿⡄⠀⠁⢛⡃⠀⠩⠀⠀⠀⠀⠀⠈⢹⣿⣷⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⡿⠫⠴⠚⡴⡆⢿⣿⣿⡏⡇⡿⡋⠿⠛⣙⣿⣗⣼⣿⣭⡑⠀⠊⠘⠇⠀⠀⠀⠀⠀⠀⠀⠀⠈⠻⣿⣿⣿⣿⣿⢻⣻⣿⣿⣿⣿⣿⣿⣿\n");
+	printf("⣿⠿⢹⢱⢿⣿⣿⣿⣿⣿⣿⣏⣿⣇⣿⣈⠉⠹⠉⢹⣿⣿⠿⠀⢀⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢿⣿⣿⣿⠏⣹⡿⢿⣹⣿⣿⣿⣿\n");
+	printf("⣿⡪⠀⡿⠎⣕⡘⡄⣸⡿⣿⣿⣿⣿⣿⣿⣦⣐⢻⠦⠘⡛⠈⣀⠀⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠻⣿⣿⣤⠋⠊⢀⠜⡗⣻⣿⣿\n");
+	printf("⡏⢹⢣⢱⣾⣿⡏⣭⠁⡟⢻⣿⣿⣿⣿⣿⣿⣿⣇⡀⠀⣀⣾⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⡙⠨⠷⡄⠻⢠⣺⠿⡟⢻\n");
+	printf("⣿⡀⣿⣯⡟⠹⣍⢉⢨⣎⢸⣿⣿⣿⣿⣿⣿⣿⣿⣷⣿⣿⣿⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣖⠂⠀⠀⢌⠀⡋⢀⣺\n");
+	printf("⡏⡧⣿⡄⢻⡘⣇⠨⢘⡻⠁⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⡟⠠⠁⢸⡆⣬⣿⣿\n");
+	printf("⣷⢷⢿⣿⣾⢷⣥⠀⠶⠬⣰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣁⣼⠐⣿⢿⣿\n");
+	printf("⣿⡌⠛⢿⣿⡏⣿⣄⠀⢀⣿⣿⣿⣿⣿⣿⣿⡿⣿⡟⣱⠏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⠌⣹⡎⢸⣧⠻\n");
+	printf("⣿⣷⣀⣆⣹⡿⢹⣷⣾⢸⣿⣿⣿⣿⣿⣿⢡⣼⠀⢰⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣄⡟⣿⢸⢿⡥\n");
+	printf("⣿⣿⣿⠃⣿⣇⣺⣿⣿⡅⣿⣿⣿⣿⣿⠃⢈⡴⠃⡈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⡁⠘⡏⣼⡟\n");
+	printf("⣿⣿⡿⣔⣿⠹⣿⣿⣿⡥⣻⣿⣿⣿⣿⣤⠟⣴⡇⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢰⠄⢹⣧⣻⣷\n");
+	printf("⣿⣿⡿⢿⣸⣿⣿⢿⣿⠀⢇⠛⠛⠿⣿⡇⠘⠟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⠄⠸⡟⣿⢿\n");
+	printf("⣿⣿⠇⢸⡟⣿⣿⡟⣼⣧⠂⠀⠀⠀⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢨⡦⠑⣽⣿⣿\n");
+	printf("⣿⡏⠀⠀⠷⣿⣿⣟⣈⠟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣍⣻⡼⣿⣿\n");
+	printf("⣿⣧⠀⠀⠀⢻⣿⣿⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⣾⣿⣿⣿⣿\n");
+	printf("⣿⣿⠀⠀⠀⠘⠏⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡽⣽⢿⣿⣿⣿\n");
+	return 0;
+}
+ 
+
+
+
+