From a7e5a6d4b1499c75d50624ab12f40dc0080899f4 Mon Sep 17 00:00:00 2001
From: "Hazal2.Veziroglu@live.uwe.ac.uk" <hazal2.veziroglu@live.uwe.ac.uk>
Date: Mon, 25 Nov 2024 16:50:42 +0000
Subject: [PATCH] Update 79 files
- /worksheet_0/task2_array_pointer.c
- /worksheet_0/task3_array_compare.c
- /worksheet_0/task2_array_pointer
- /worksheet_0/task4_file_sum
- /worksheet_0/task4_file_sum.c
- /worksheet_0/task1_pointer.c
- /worksheet_0/task7_tic_tac_toe
- /worksheet_0/task6_print_2d_array
- /worksheet_0/task5_swap_function
- /worksheet_0/task6_print_2d_array.c
- /worksheet_0/task1_pointer
- /worksheet_0/foo.txt
- /worksheet_0/task5_swap_function.c
- /worksheet_0/task3_array_compare
- /worksheet_0/task7_tic_tac_toe.c
- /worksheet_0/task3_array_compare.dSYM/Contents/Info.plist
- /worksheet_0/task3_array_compare.dSYM/Contents/Resources/Relocations/x86_64/task3_array_compare.yml
- /worksheet_0/task3_array_compare.dSYM/Contents/Resources/DWARF/task3_array_compare
- /worksheet_0/task2_array_pointer.dSYM/Contents/Info.plist
- /worksheet_0/task2_array_pointer.dSYM/Contents/Resources/Relocations/x86_64/task2_array_pointer.yml
- /worksheet_0/task2_array_pointer.dSYM/Contents/Resources/DWARF/task2_array_pointer
- /worksheet_0/task7_tic_tac_toe.dSYM/Contents/Info.plist
- /worksheet_0/task7_tic_tac_toe.dSYM/Contents/Resources/Relocations/x86_64/task7_tic_tac_toe.yml
- /worksheet_0/task7_tic_tac_toe.dSYM/Contents/Resources/DWARF/task7_tic_tac_toe
- /worksheet_0/task5_swap_function.dSYM/Contents/Info.plist
- /worksheet_0/task5_swap_function.dSYM/Contents/Resources/Relocations/x86_64/task5_swap_function.yml
- /worksheet_0/task5_swap_function.dSYM/Contents/Resources/DWARF/task5_swap_function
- /worksheet_0/task4_file_sum.dSYM/Contents/Info.plist
- /worksheet_0/task4_file_sum.dSYM/Contents/Resources/Relocations/x86_64/task4_file_sum.yml
- /worksheet_0/task4_file_sum.dSYM/Contents/Resources/DWARF/task4_file_sum
- /worksheet_0/task6_print_2d_array.dSYM/Contents/Info.plist
- /worksheet_0/task6_print_2d_array.dSYM/Contents/Resources/Relocations/x86_64/task6_print_2d_array.yml
- /worksheet_0/task6_print_2d_array.dSYM/Contents/Resources/DWARF/task6_print_2d_array
- /worksheet_0/task1_pointer.dSYM/Contents/Info.plist
- /worksheet_0/task1_pointer.dSYM/Contents/Resources/Relocations/x86_64/task1_pointer.yml
- /worksheet_0/task1_pointer.dSYM/Contents/Resources/DWARF/task1_pointer
- /worksheet_1/makefile
- /worksheet_1/README.md
- /worksheet_1/src/task2.asm
- /worksheet_1/src/task3.asm
- /worksheet_1/src/task1.asm
- /worksheet_1/src/task4.asm
- /worksheet_1/src/task1.o
- /worksheet_1/src/driver.o
- /worksheet_1/src/asm_io.o
- /worksheet_1/src/asm_io.inc
- /worksheet_1/src/asm_io.asm
- /worksheet_1/src/driver.c
- /worksheet2_1/Makefile
- /worksheet2_1/loader.asm
- /worksheet2_1/README.md
- /worksheet2_1/loader.o
- /worksheet2_1/iso/boot/grub/menu.lst
- /worksheet2_1/iso/boot/grub/stage2_eltorito
- /worksheet2_1/source/link.ld
- /worksheet2_2/interrupts.h
- /worksheet2_2/interrupts.o
- /worksheet2_2/pic.c
- /worksheet2_2/hardware_interrupt_enabler.s
- /worksheet2_2/keyboard.c
- /worksheet2_2/types.h
- /worksheet2_2/Makefile
- /worksheet2_2/kmain.o
- /worksheet2_2/frame_buffer.c
- /worksheet2_2/loader.s
- /worksheet2_2/interrupts.c
- /worksheet2_2/pic.h
- /worksheet2_2/pic.o
- /worksheet2_2/io.o
- /worksheet2_2/keyboard.h
- /worksheet2_2/io.h
- /worksheet2_2/keyboard.o
- /worksheet2_2/io.s
- /worksheet2_2/interrupt_asm.o
- /worksheet2_2/interrupt_asm.s
- /worksheet2_2/interrupt_handlers.o
- /worksheet2_2/interrupt_handlers.s
- /worksheet2_2/frame_buffer.h
- /worksheet2_2/kmain.c
---
worksheet2_1/Makefile | 38 ++++++
worksheet2_1/README.md | 3 +
worksheet2_1/iso/boot/grub/menu.lst | 5 +
worksheet2_1/iso/boot/grub/stage2_eltorito | 0
worksheet2_1/loader.asm | 17 +++
worksheet2_1/loader.o | Bin 0 -> 544 bytes
worksheet2_1/source/link.ld | 22 ++++
worksheet2_2/Makefile | 24 ++++
worksheet2_2/frame_buffer.c | 12 ++
worksheet2_2/frame_buffer.h | 11 ++
worksheet2_2/hardware_interrupt_enabler.s | 0
worksheet2_2/interrupt_asm.o | Bin 0 -> 432 bytes
worksheet2_2/interrupt_asm.s | 6 +
worksheet2_2/interrupt_handlers.o | Bin 0 -> 576 bytes
worksheet2_2/interrupt_handlers.s | 17 +++
worksheet2_2/interrupts.c | 115 ++++++++++++++++++
worksheet2_2/interrupts.h | 40 ++++++
worksheet2_2/interrupts.o | Bin 0 -> 2448 bytes
worksheet2_2/io.h | 7 ++
worksheet2_2/io.o | Bin 0 -> 416 bytes
worksheet2_2/io.s | 9 ++
worksheet2_2/keyboard.c | 43 +++++++
worksheet2_2/keyboard.h | 11 ++
worksheet2_2/keyboard.o | Bin 0 -> 944 bytes
worksheet2_2/kmain.c | 13 ++
worksheet2_2/kmain.o | Bin 0 -> 360 bytes
worksheet2_2/loader.s | 0
worksheet2_2/pic.c | 19 +++
worksheet2_2/pic.h | 14 +++
worksheet2_2/pic.o | Bin 0 -> 700 bytes
worksheet2_2/types.h | 13 ++
worksheet_0/foo.txt | 5 +
worksheet_0/task1_pointer | Bin 0 -> 33320 bytes
worksheet_0/task1_pointer.c | 12 ++
.../task1_pointer.dSYM/Contents/Info.plist | 20 +++
.../Contents/Resources/DWARF/task1_pointer | Bin 0 -> 9119 bytes
.../Relocations/x86_64/task1_pointer.yml | 7 ++
worksheet_0/task2_array_pointer | Bin 0 -> 33456 bytes
worksheet_0/task2_array_pointer.c | 12 ++
.../Contents/Info.plist | 20 +++
.../Resources/DWARF/task2_array_pointer | Bin 0 -> 9239 bytes
.../x86_64/task2_array_pointer.yml | 7 ++
worksheet_0/task3_array_compare | Bin 0 -> 33576 bytes
worksheet_0/task3_array_compare.c | 20 +++
.../Contents/Info.plist | 20 +++
.../Resources/DWARF/task3_array_compare | Bin 0 -> 9503 bytes
.../x86_64/task3_array_compare.yml | 8 ++
worksheet_0/task4_file_sum | Bin 0 -> 33488 bytes
worksheet_0/task4_file_sum.c | 18 +++
.../task4_file_sum.dSYM/Contents/Info.plist | 20 +++
.../Contents/Resources/DWARF/task4_file_sum | Bin 0 -> 10544 bytes
.../Relocations/x86_64/task4_file_sum.yml | 7 ++
worksheet_0/task5_swap_function | Bin 0 -> 33616 bytes
worksheet_0/task5_swap_function.c | 22 ++++
.../Contents/Info.plist | 20 +++
.../Resources/DWARF/task5_swap_function | Bin 0 -> 10074 bytes
.../x86_64/task5_swap_function.yml | 8 ++
worksheet_0/task6_print_2d_array | Bin 0 -> 33608 bytes
worksheet_0/task6_print_2d_array.c | 20 +++
.../Contents/Info.plist | 20 +++
.../Resources/DWARF/task6_print_2d_array | Bin 0 -> 9481 bytes
.../x86_64/task6_print_2d_array.yml | 8 ++
worksheet_0/task7_tic_tac_toe | Bin 0 -> 33720 bytes
worksheet_0/task7_tic_tac_toe.c | 59 +++++++++
.../Contents/Info.plist | 20 +++
.../Resources/DWARF/task7_tic_tac_toe | Bin 0 -> 10100 bytes
.../Relocations/x86_64/task7_tic_tac_toe.yml | 9 ++
worksheet_1/README.md | 9 ++
worksheet_1/makefile | 28 +++++
worksheet_1/src/asm_io.asm | 26 ++++
worksheet_1/src/asm_io.inc | 30 +++++
worksheet_1/src/asm_io.o | Bin 0 -> 304 bytes
worksheet_1/src/driver.c | 7 ++
worksheet_1/src/driver.o | Bin 0 -> 572 bytes
worksheet_1/src/task1.asm | 17 +++
worksheet_1/src/task1.o | Bin 0 -> 704 bytes
worksheet_1/src/task2.asm | 53 ++++++++
worksheet_1/src/task3.asm | 23 ++++
worksheet_1/src/task4.asm | 66 ++++++++++
79 files changed, 1060 insertions(+)
create mode 100644 worksheet2_1/Makefile
create mode 100644 worksheet2_1/README.md
create mode 100644 worksheet2_1/iso/boot/grub/menu.lst
create mode 100644 worksheet2_1/iso/boot/grub/stage2_eltorito
create mode 100644 worksheet2_1/loader.asm
create mode 100644 worksheet2_1/loader.o
create mode 100644 worksheet2_1/source/link.ld
create mode 100644 worksheet2_2/Makefile
create mode 100644 worksheet2_2/frame_buffer.c
create mode 100644 worksheet2_2/frame_buffer.h
create mode 100644 worksheet2_2/hardware_interrupt_enabler.s
create mode 100644 worksheet2_2/interrupt_asm.o
create mode 100644 worksheet2_2/interrupt_asm.s
create mode 100644 worksheet2_2/interrupt_handlers.o
create mode 100644 worksheet2_2/interrupt_handlers.s
create mode 100644 worksheet2_2/interrupts.c
create mode 100644 worksheet2_2/interrupts.h
create mode 100644 worksheet2_2/interrupts.o
create mode 100644 worksheet2_2/io.h
create mode 100644 worksheet2_2/io.o
create mode 100644 worksheet2_2/io.s
create mode 100644 worksheet2_2/keyboard.c
create mode 100644 worksheet2_2/keyboard.h
create mode 100644 worksheet2_2/keyboard.o
create mode 100644 worksheet2_2/kmain.c
create mode 100644 worksheet2_2/kmain.o
create mode 100644 worksheet2_2/loader.s
create mode 100644 worksheet2_2/pic.c
create mode 100644 worksheet2_2/pic.h
create mode 100644 worksheet2_2/pic.o
create mode 100644 worksheet2_2/types.h
create mode 100644 worksheet_0/foo.txt
create mode 100644 worksheet_0/task1_pointer
create mode 100644 worksheet_0/task1_pointer.c
create mode 100644 worksheet_0/task1_pointer.dSYM/Contents/Info.plist
create mode 100644 worksheet_0/task1_pointer.dSYM/Contents/Resources/DWARF/task1_pointer
create mode 100644 worksheet_0/task1_pointer.dSYM/Contents/Resources/Relocations/x86_64/task1_pointer.yml
create mode 100644 worksheet_0/task2_array_pointer
create mode 100644 worksheet_0/task2_array_pointer.c
create mode 100644 worksheet_0/task2_array_pointer.dSYM/Contents/Info.plist
create mode 100644 worksheet_0/task2_array_pointer.dSYM/Contents/Resources/DWARF/task2_array_pointer
create mode 100644 worksheet_0/task2_array_pointer.dSYM/Contents/Resources/Relocations/x86_64/task2_array_pointer.yml
create mode 100644 worksheet_0/task3_array_compare
create mode 100644 worksheet_0/task3_array_compare.c
create mode 100644 worksheet_0/task3_array_compare.dSYM/Contents/Info.plist
create mode 100644 worksheet_0/task3_array_compare.dSYM/Contents/Resources/DWARF/task3_array_compare
create mode 100644 worksheet_0/task3_array_compare.dSYM/Contents/Resources/Relocations/x86_64/task3_array_compare.yml
create mode 100644 worksheet_0/task4_file_sum
create mode 100644 worksheet_0/task4_file_sum.c
create mode 100644 worksheet_0/task4_file_sum.dSYM/Contents/Info.plist
create mode 100644 worksheet_0/task4_file_sum.dSYM/Contents/Resources/DWARF/task4_file_sum
create mode 100644 worksheet_0/task4_file_sum.dSYM/Contents/Resources/Relocations/x86_64/task4_file_sum.yml
create mode 100644 worksheet_0/task5_swap_function
create mode 100644 worksheet_0/task5_swap_function.c
create mode 100644 worksheet_0/task5_swap_function.dSYM/Contents/Info.plist
create mode 100644 worksheet_0/task5_swap_function.dSYM/Contents/Resources/DWARF/task5_swap_function
create mode 100644 worksheet_0/task5_swap_function.dSYM/Contents/Resources/Relocations/x86_64/task5_swap_function.yml
create mode 100644 worksheet_0/task6_print_2d_array
create mode 100644 worksheet_0/task6_print_2d_array.c
create mode 100644 worksheet_0/task6_print_2d_array.dSYM/Contents/Info.plist
create mode 100644 worksheet_0/task6_print_2d_array.dSYM/Contents/Resources/DWARF/task6_print_2d_array
create mode 100644 worksheet_0/task6_print_2d_array.dSYM/Contents/Resources/Relocations/x86_64/task6_print_2d_array.yml
create mode 100644 worksheet_0/task7_tic_tac_toe
create mode 100644 worksheet_0/task7_tic_tac_toe.c
create mode 100644 worksheet_0/task7_tic_tac_toe.dSYM/Contents/Info.plist
create mode 100644 worksheet_0/task7_tic_tac_toe.dSYM/Contents/Resources/DWARF/task7_tic_tac_toe
create mode 100644 worksheet_0/task7_tic_tac_toe.dSYM/Contents/Resources/Relocations/x86_64/task7_tic_tac_toe.yml
create mode 100644 worksheet_1/README.md
create mode 100644 worksheet_1/makefile
create mode 100644 worksheet_1/src/asm_io.asm
create mode 100644 worksheet_1/src/asm_io.inc
create mode 100644 worksheet_1/src/asm_io.o
create mode 100644 worksheet_1/src/driver.c
create mode 100644 worksheet_1/src/driver.o
create mode 100644 worksheet_1/src/task1.asm
create mode 100644 worksheet_1/src/task1.o
create mode 100644 worksheet_1/src/task2.asm
create mode 100644 worksheet_1/src/task3.asm
create mode 100644 worksheet_1/src/task4.asm
diff --git a/worksheet2_1/Makefile b/worksheet2_1/Makefile
new file mode 100644
index 0000000..a5650f1
--- /dev/null
+++ b/worksheet2_1/Makefile
@@ -0,0 +1,38 @@
+ASM=nasm
+CC=gcc
+QEMU=qemu-system-i386
+GENISO=mkisofs
+
+SRC_DIR=source
+ISO_DIR=iso
+BUILD_DIR=$(ISO_DIR)/boot
+
+KERNEL=kernel.elf
+ISO=os.iso
+
+all: build run
+
+build: $(KERNEL) iso
+
+$(KERNEL): loader.o
+ $(CC) -nostdlib -o $(KERNEL) loader.o -Wl,-T,$(SRC_DIR)/link.ld
+
+loader.o: loader.asm
+ $(ASM) -f elf loader.asm
+
+iso: $(KERNEL)
+ mkdir -p $(BUILD_DIR)/grub
+ cp $(KERNEL) $(BUILD_DIR)
+ cp $(ISO_DIR)/boot/grub/menu.lst $(BUILD_DIR)/grub/
+ cp $(ISO_DIR)/boot/grub/stage2_eltorito $(BUILD_DIR)/grub/
+ $(GENISO) -R -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 \
+ -A os -input-charset utf8 -quiet -boot-info-table -o $(ISO) $(ISO_DIR)
+
+run: build
+ $(QEMU) -nographic -boot d -cdrom $(ISO) -m 32 -d cpu -D logQ.txt
+
+clean:
+ rm -f *.o $(KERNEL) $(ISO)
+ rm -rf $(BUILD_DIR)
+
+.PHONY: all build iso run clean
diff --git a/worksheet2_1/README.md b/worksheet2_1/README.md
new file mode 100644
index 0000000..42b2e70
--- /dev/null
+++ b/worksheet2_1/README.md
@@ -0,0 +1,3 @@
+# Worksheet 2 Part 1 - Tiny OS
+
+## Structure
diff --git a/worksheet2_1/iso/boot/grub/menu.lst b/worksheet2_1/iso/boot/grub/menu.lst
new file mode 100644
index 0000000..9a5b08c
--- /dev/null
+++ b/worksheet2_1/iso/boot/grub/menu.lst
@@ -0,0 +1,5 @@
+default=0
+timeout=0
+
+title os
+kernel /boot/kernel.elf
diff --git a/worksheet2_1/iso/boot/grub/stage2_eltorito b/worksheet2_1/iso/boot/grub/stage2_eltorito
new file mode 100644
index 0000000..e69de29
diff --git a/worksheet2_1/loader.asm b/worksheet2_1/loader.asm
new file mode 100644
index 0000000..bad63b8
--- /dev/null
+++ b/worksheet2_1/loader.asm
@@ -0,0 +1,17 @@
+global loader
+
+MAGIC_NUMBER equ 0x1BADB002
+FLAGS equ 0x0
+CHECKSUM equ -MAGIC_NUMBER
+
+section .text
+align 4
+
+dd MAGIC_NUMBER
+dd FLAGS
+dd CHECKSUM
+
+loader:
+ mov eax, 0xCAFEBABE
+.loop:
+ jmp .loop
diff --git a/worksheet2_1/loader.o b/worksheet2_1/loader.o
new file mode 100644
index 0000000000000000000000000000000000000000..77a0c8895f412835d6ed7210d4b37985b671e9e1
GIT binary patch
literal 544
zcmb<-^>JflWMqH=Mh0dE1doBi0V-hvrZpH?8JNH<QVEcmAj}5UD8R_TAPi-LC;<?`
zz`(%Hz`(!^WrHXKMg|5&5Ce)qW`LN23=AkPNnm7PXkcJqV1b$eqCsX#qM7%Ak%7S)
zWB?Sy%!6_nm^Q4H2C@J72R+%bZ`Z$5um6F#2&`9<T2aEFSDaB?QdE+d#GqGPnG2yI
ze1uA@EM)sw7(V_-Rs;%p9+1DFZeU>e_#fncgqn~4<rx?lKyHJGef+P_z`y_s3kaW)
zL4$#T0b~Y<F93?koczR;)FQpa;#>w_M|V%>c)w6zC)XebHy=m$U<PLoS7-0wP+ta!
QGAN~&lb>GzGJ$~s01J9JVgLXD
literal 0
HcmV?d00001
diff --git a/worksheet2_1/source/link.ld b/worksheet2_1/source/link.ld
new file mode 100644
index 0000000..dca86d6
--- /dev/null
+++ b/worksheet2_1/source/link.ld
@@ -0,0 +1,22 @@
+ENTRY(loader)
+
+SECTIONS {
+ . = 0x00100000;
+
+ .text ALIGN (0x1000) : {
+ *(.text)
+ }
+
+ .rodata ALIGN (0x1000) : {
+ *(.rodata*)
+ }
+
+ .data ALIGN (0x1000) : {
+ *(.data)
+ }
+
+ .bss ALIGN (0x1000) : {
+ *(COMMON)
+ *(.bss)
+ }
+}
diff --git a/worksheet2_2/Makefile b/worksheet2_2/Makefile
new file mode 100644
index 0000000..c63025f
--- /dev/null
+++ b/worksheet2_2/Makefile
@@ -0,0 +1,24 @@
+LD = ld
+CC = gcc
+CFLAGS = -m32 -ffreestanding -nostdlib -fno-stack-protector
+AS = nasm
+ASFLAGS = -f elf
+
+SRC_DIR = .
+SOURCES = $(SRC_DIR)/kmain.c $(SRC_DIR)/pic.c $(SRC_DIR)/interrupts.c $(SRC_DIR)/keyboard.c
+ASM_SOURCES = $(SRC_DIR)/io.s $(SRC_DIR)/interrupt_asm.s $(SRC_DIR)/interrupt_handlers.s
+OBJECTS = $(SOURCES:.c=.o) $(ASM_SOURCES:.s=.o)
+
+all: kernel.elf
+
+kernel.elf: $(OBJECTS)
+ $(LD) -m elf_i386 -Ttext 0x1000 -o kernel.elf $(OBJECTS)
+
+$(SRC_DIR)/%.o: $(SRC_DIR)/%.c
+ $(CC) $(CFLAGS) -c $< -o $@
+
+$(SRC_DIR)/%.o: $(SRC_DIR)/%.s
+ $(AS) $(ASFLAGS) $< -o $@
+
+clean:
+ rm -f $(SRC_DIR)/*.o kernel.elf
diff --git a/worksheet2_2/frame_buffer.c b/worksheet2_2/frame_buffer.c
new file mode 100644
index 0000000..f6eff01
--- /dev/null
+++ b/worksheet2_2/frame_buffer.c
@@ -0,0 +1,12 @@
+#include "frame_buffer.h"
+#include "io.h"
+
+#define FRAME_BUFFER_ADDRESS 0xB8000
+#define MAX_COLS 80
+#define MAX_ROWS 25
+
+void fb_write_cell(u32int index, char c, u8int fg, u8int bg) {
+ volatile char *fb = (volatile char *)FRAME_BUFFER_ADDRESS;
+ fb[index * 2] = c;
+ fb[index * 2 + 1] = (bg << 4) | (fg & 0x0F);
+}
diff --git a/worksheet2_2/frame_buffer.h b/worksheet2_2/frame_buffer.h
new file mode 100644
index 0000000..2351f7e
--- /dev/null
+++ b/worksheet2_2/frame_buffer.h
@@ -0,0 +1,11 @@
+#ifndef INCLUDE_FRAME_BUFFER_H
+#define INCLUDE_FRAME_BUFFER_H
+
+#include "types.h"
+
+#define FB_DARK_GREY 8
+#define FB_GREEN 2
+
+void fb_write_cell(u32int index, char c, u8int fg, u8int bg);
+
+#endif
diff --git a/worksheet2_2/hardware_interrupt_enabler.s b/worksheet2_2/hardware_interrupt_enabler.s
new file mode 100644
index 0000000..e69de29
diff --git a/worksheet2_2/interrupt_asm.o b/worksheet2_2/interrupt_asm.o
new file mode 100644
index 0000000000000000000000000000000000000000..c189cad33ad2baedfad434b3ae14e29085b216ca
GIT binary patch
literal 432
zcmb<-^>JflWMqH=Mh0dE1doBi0V-hvrZpH?8JNH<QVEcmAj}5UD8R_TzyW20C;<?`
zz`(%Hz`(!^WrHXMMg|5&5Ce)qW`LN23=AkP31Eb{l?AFFM1#zfgz`apKzITp1A`QZ
z0mU%$pj?J-7ZnzMMv22PK7(FKYDEcyUU5coNl{5+5`$iGWiEt<@Zk!vGmy<^VfgqT
qSrsUxLH>Y=34lUAGp{7IsHn7{BtEe?SFe~MCqFSIJ~O2Rst5oAUmSV>
literal 0
HcmV?d00001
diff --git a/worksheet2_2/interrupt_asm.s b/worksheet2_2/interrupt_asm.s
new file mode 100644
index 0000000..da09acb
--- /dev/null
+++ b/worksheet2_2/interrupt_asm.s
@@ -0,0 +1,6 @@
+global load_idt
+
+load_idt:
+ mov eax, [esp + 4]
+ lidt [eax]
+ ret
diff --git a/worksheet2_2/interrupt_handlers.o b/worksheet2_2/interrupt_handlers.o
new file mode 100644
index 0000000000000000000000000000000000000000..3c001059dbf17659fcea2285aa91ae9f13215e8e
GIT binary patch
literal 576
zcmb<-^>JflWMqH=Mh0dE1doBi0V-hvrZpJY7?{8;QVEcmAj}5UXu!z8zz1c6C;<?`
zz`(%Hz`(!^WrHXOMg|6L5Ce)qW`LN23=AkPDPUw^NMK-KU_rtlGbPc?yTHi65C$>;
ziecs{GB7Z3Ld8Io0TTlQ2UIUe4ai&&KjFon|Ns9dp3h>)Qhfc1fq_A<B(<W1L9aNY
zxTL5gF^NI1xH1<)L-|FiIS@4<V=*wuY?vSm!^i(HHi!nrga(KK$BYbOa5e)2$bXIu
z5O;!v1wb*EnOBlpR8(3}5}%Qnmy(lORIFFbfFa0`oS&PUpBIlQfguuaYz#6Sib1i@
J1PTl&9{?s(K}!Gt
literal 0
HcmV?d00001
diff --git a/worksheet2_2/interrupt_handlers.s b/worksheet2_2/interrupt_handlers.s
new file mode 100644
index 0000000..35fa4bc
--- /dev/null
+++ b/worksheet2_2/interrupt_handlers.s
@@ -0,0 +1,17 @@
+extern interrupt_handler
+
+%macro no_error_code_interrupt_handler 1
+global interrupt_handler_%1
+interrupt_handler_%1:
+ push dword 0
+ push dword %1
+ jmp common_interrupt_handler
+%endmacro
+
+common_interrupt_handler:
+ pushad
+ call interrupt_handler
+ popad
+ iret
+
+no_error_code_interrupt_handler 33
diff --git a/worksheet2_2/interrupts.c b/worksheet2_2/interrupts.c
new file mode 100644
index 0000000..80e84cc
--- /dev/null
+++ b/worksheet2_2/interrupts.c
@@ -0,0 +1,115 @@
+#include "interrupts.h"
+#include "pic.h"
+#include "io.h"
+#include "frame_buffer.h"
+#include "keyboard.h"
+#include "types.h"
+
+#define INTERRUPTS_DESCRIPTOR_COUNT 256
+#define INTERRUPTS_KEYBOARD 33
+#define INPUT_BUFFER_SIZE 256
+
+u8int input_buffer[INPUT_BUFFER_SIZE];
+u8int buffer_index = 0;
+
+struct IDTDescriptor idt_descriptors[INTERRUPTS_DESCRIPTOR_COUNT];
+struct IDT idt;
+
+u32int BUFFER_COUNT;
+
+void interrupts_init_descriptor(s32int index, u32int address)
+{
+ idt_descriptors[index].offset_high = (address >> 16) & 0xFFFF; // offset bits 0..15
+ idt_descriptors[index].offset_low = (address & 0xFFFF); // offset bits 16..31
+
+ idt_descriptors[index].segment_selector = 0x08; // The second (code) segment selector in GDT: one segment is 64b.
+ idt_descriptors[index].reserved = 0x00; // Reserved.
+
+ /*
+ Bit: | 31 16 | 15 | 14 13 | 12 | 11 10 9 8 | 7 6 5 | 4 3 2 1 0 |
+ Content: | offset high | P | DPL | S | D and GateType | 0 0 0 | reserved
+ P If the handler is present in memory or not (1 = present, 0 = not present). Set to 0 for unused interrupts or for Paging.
+ DPL Descriptor Privilige Level, the privilege level the handler can be called from (0, 1, 2, 3).
+ S Storage Segment. Set to 0 for interrupt gates.
+ D Size of gate, (1 = 32 bits, 0 = 16 bits).
+ */
+ idt_descriptors[index].type_and_attr = (0x01 << 7) | // P
+ (0x00 << 6) | (0x00 << 5) | // DPL
+ 0xe; // 0b1110=0xE 32-bit interrupt gate
+}
+
+void interrupts_install_idt()
+{
+
+ interrupts_init_descriptor(INTERRUPTS_KEYBOARD, (u32int) interrupt_handler_33);
+
+
+ idt.address = (s32int) &idt_descriptors;
+ idt.size = sizeof(struct IDTDescriptor) * INTERRUPTS_DESCRIPTOR_COUNT;
+ load_idt((s32int) &idt);
+
+ /*pic_remap(PIC_PIC1_OFFSET, PIC_PIC2_OFFSET);*/
+ pic_remap(PIC_1_OFFSET, PIC_2_OFFSET);
+
+ // Unmask keyboard interrupt (IRQ1)
+ outb(0x21, inb(0x21) & ~(1 << 1));
+}
+
+
+/* Interrupt handlers ********************************************************/
+
+void interrupt_handler(__attribute__((unused)) struct cpu_state cpu, u32int interrupt, __attribute__((unused)) struct stack_state stack) {
+ u8int input;
+ u8int ascii;
+ static u32int fe_count = 0;
+ static u32int debug_count = 0;
+
+ switch (interrupt) {
+ case INTERRUPTS_KEYBOARD:
+ while ((inb(0x64) & 1)) {
+ input = keyboard_read_scan_code();
+
+ // Debug output
+ /*fb_write_cell(debug_count * 3 + 0, 'x', FB_GREEN, FB_DARK_GREY);
+ fb_write_cell(debug_count * 3 + 1, "0123456789ABCDEF"[input >> 4], FB_GREEN, FB_DARK_GREY);
+ fb_write_cell(debug_count * 3 + 2, "0123456789ABCDEF"[input & 0xF], FB_GREEN, FB_DARK_GREY);*/
+ debug_count++;
+
+ // Track FE codes
+ if (input == 0xFE) {
+ fe_count++;
+ continue;
+ }
+
+ // Only process if it's not a break code
+ if (!(input & 0x80)) {
+ if (input <= KEYBOARD_MAX_ASCII) {
+ ascii = keyboard_scan_code_to_ascii(input);
+ if (ascii != 0) {
+ if (ascii == '\b') {
+ if (BUFFER_COUNT > 0) {
+ BUFFER_COUNT--;
+ fb_write_cell(BUFFER_COUNT, ' ', FB_DARK_GREY, FB_GREEN);
+ }
+ }
+ else if (ascii == '\n') {
+ BUFFER_COUNT = ((BUFFER_COUNT / 80) + 1) * 80;
+ }
+ else {
+ fb_write_cell(BUFFER_COUNT, ascii, FB_DARK_GREY, FB_GREEN);
+ BUFFER_COUNT++;
+ }
+ }
+ }
+ }
+
+ buffer_index = (buffer_index + 1) % INPUT_BUFFER_SIZE;
+ }
+
+ pic_acknowledge(interrupt);
+ break;
+
+ default:
+ break;
+ }
+}
\ No newline at end of file
diff --git a/worksheet2_2/interrupts.h b/worksheet2_2/interrupts.h
new file mode 100644
index 0000000..be53adc
--- /dev/null
+++ b/worksheet2_2/interrupts.h
@@ -0,0 +1,40 @@
+#ifndef INCLUDE_INTERRUPTS_H
+#define INCLUDE_INTERRUPTS_H
+
+#include "types.h"
+
+struct IDT {
+ u16int size;
+ u32int address;
+} __attribute__((packed));
+
+struct IDTDescriptor {
+ u16int offset_low;
+ u16int segment_selector;
+ u8int reserved;
+ u8int type_and_attr;
+ u16int offset_high;
+} __attribute__((packed));
+
+struct cpu_state {
+ u32int eax;
+ u32int ebx;
+ u32int ecx;
+ u32int edx;
+ u32int esi;
+ u32int edi;
+ u32int ebp;
+} __attribute__((packed));
+
+struct stack_state {
+ u32int error_code;
+ u32int eip;
+ u32int cs;
+ u32int eflags;
+} __attribute__((packed));
+
+void interrupts_install_idt();
+void interrupt_handler_33();
+void load_idt(u32int idt_address); // Declaration for the `load_idt` function
+
+#endif
diff --git a/worksheet2_2/interrupts.o b/worksheet2_2/interrupts.o
new file mode 100644
index 0000000000000000000000000000000000000000..0979c78593cea0b72d4753ce773c4c1251ec9911
GIT binary patch
literal 2448
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zD9JA>MluehB@<Z^Ne<=`kWfKs3Dm(1@dcU5@kOb*i3JStX-V<rMVTe3@yV$<ISldH
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literal 0
HcmV?d00001
diff --git a/worksheet2_2/io.h b/worksheet2_2/io.h
new file mode 100644
index 0000000..79bcf8c
--- /dev/null
+++ b/worksheet2_2/io.h
@@ -0,0 +1,7 @@
+#ifndef INCLUDE_IO_H
+#define INCLUDE_IO_H
+
+void outb(unsigned short port, unsigned char value); // Writes a byte to the given I/O port
+unsigned char inb(unsigned short port); // Reads a byte from the given I/O port
+
+#endif
diff --git a/worksheet2_2/io.o b/worksheet2_2/io.o
new file mode 100644
index 0000000000000000000000000000000000000000..5eeb851de12d0a5f894a747042e4a05b097f548b
GIT binary patch
literal 416
zcmb<-^>JflWMqH=Mh0dE1doBi0V-hvrZpH?8JNH<QVEcmAj}5UD8R_Tzzt=CC;<?`
zz`(%Hz`(!^WrHXMMg|5&5Ce)qW`LN23=AkP31Eb{l?AFFM1#zfgz`apKzIV0y)g4Y
zav+@69iqb0<)Xsz?l6eUz@S%>T2aEFSDaB?QdE+d#GqGPnG2yIe26NXB(nJ|3?Kg^
dD+Gl!EIdHs0-%u3%-1Vs$S*BP0*Np%003VE7+wGX
literal 0
HcmV?d00001
diff --git a/worksheet2_2/io.s b/worksheet2_2/io.s
new file mode 100644
index 0000000..da2d5f9
--- /dev/null
+++ b/worksheet2_2/io.s
@@ -0,0 +1,9 @@
+global outb
+
+; outb - Writes a byte to the given I/O port
+; Parameters: AL contains the byte to write, DX contains the port address
+outb:
+ mov dx, [esp + 4] ; Load the I/O port address into DX
+ mov al, [esp + 8] ; Load the value into AL
+ out dx, al ; Write the value to the port
+ ret
diff --git a/worksheet2_2/keyboard.c b/worksheet2_2/keyboard.c
new file mode 100644
index 0000000..56a7d6c
--- /dev/null
+++ b/worksheet2_2/keyboard.c
@@ -0,0 +1,43 @@
+#include "keyboard.h"
+#include "io.h"
+
+#define KEYBOARD_DATA_PORT 0x60
+
+u8int keyboard_read_scan_code() {
+ return inb(KEYBOARD_DATA_PORT);
+}
+
+u8int keyboard_scan_code_to_ascii(u8int scan_code) {
+ switch (scan_code) {
+ case 0x1E: return 'a';
+ case 0x30: return 'b';
+ case 0x2E: return 'c';
+ case 0x20: return 'd';
+ case 0x12: return 'e';
+ case 0x21: return 'f';
+ case 0x22: return 'g';
+ case 0x23: return 'h';
+ case 0x17: return 'i';
+ case 0x24: return 'j';
+ case 0x25: return 'k';
+ case 0x26: return 'l';
+ case 0x32: return 'm';
+ case 0x31: return 'n';
+ case 0x18: return 'o';
+ case 0x19: return 'p';
+ case 0x10: return 'q';
+ case 0x13: return 'r';
+ case 0x1F: return 's';
+ case 0x14: return 't';
+ case 0x16: return 'u';
+ case 0x2F: return 'v';
+ case 0x11: return 'w';
+ case 0x2D: return 'x';
+ case 0x15: return 'y';
+ case 0x2C: return 'z';
+ case 0x39: return ' ';
+ case 0x0E: return '\b';
+ case 0x1C: return '\n';
+ default: return 0;
+ }
+}
diff --git a/worksheet2_2/keyboard.h b/worksheet2_2/keyboard.h
new file mode 100644
index 0000000..aea190f
--- /dev/null
+++ b/worksheet2_2/keyboard.h
@@ -0,0 +1,11 @@
+#ifndef INCLUDE_KEYBOARD_H
+#define INCLUDE_KEYBOARD_H
+
+#include "types.h"
+
+#define KEYBOARD_MAX_ASCII 127 // Maximum ASCII value supported by the keyboard
+
+u8int keyboard_read_scan_code();
+u8int keyboard_scan_code_to_ascii(u8int scan_code);
+
+#endif
diff --git a/worksheet2_2/keyboard.o b/worksheet2_2/keyboard.o
new file mode 100644
index 0000000000000000000000000000000000000000..7b401d5ea7ed604a6cb2ccef719e7e63d1bc2981
GIT binary patch
literal 944
zcmX^2>+L^w1_lOZ1_lO31_lOJ1_lNm5JLgNuVKIrB$yZ&G#D8eKr~1{2!phNRL94c
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dr=-T0<i{r#Cue3NNfxChBB@}A&&*3=00610&<X$m
literal 0
HcmV?d00001
diff --git a/worksheet2_2/kmain.c b/worksheet2_2/kmain.c
new file mode 100644
index 0000000..4806ffe
--- /dev/null
+++ b/worksheet2_2/kmain.c
@@ -0,0 +1,13 @@
+#include "interrupts.h"
+#include "pic.h"
+#include "keyboard.h"
+
+void kmain() {
+ // Initialize IDT and interrupts
+ interrupts_install_idt();
+
+ // Main terminal loop
+ while (1) {
+ // Continuously process user input
+ }
+}
diff --git a/worksheet2_2/kmain.o b/worksheet2_2/kmain.o
new file mode 100644
index 0000000000000000000000000000000000000000..d7f6124a36047132193b1be82c5ec58f7dbeb105
GIT binary patch
literal 360
zcmX^2>+L^w1_lOZ1_lO31_lNe1_p*d3=9km3J`t`h>ZmcFfcGkFfuTJXpnvo2I&VW
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literal 0
HcmV?d00001
diff --git a/worksheet2_2/loader.s b/worksheet2_2/loader.s
new file mode 100644
index 0000000..e69de29
diff --git a/worksheet2_2/pic.c b/worksheet2_2/pic.c
new file mode 100644
index 0000000..2e59879
--- /dev/null
+++ b/worksheet2_2/pic.c
@@ -0,0 +1,19 @@
+#include "io.h"
+#include "pic.h"
+#include "types.h"
+
+void pic_remap(s32int offset1, s32int offset2) {
+ outb(PIC_1, 0x11);
+ outb(PIC_2, 0x11);
+ outb(PIC_1 + 1, offset1);
+ outb(PIC_2 + 1, offset2);
+ outb(PIC_1 + 1, 0x04);
+ outb(PIC_2 + 1, 0x02);
+ outb(PIC_1 + 1, 0x01);
+ outb(PIC_2 + 1, 0x01);
+}
+
+void pic_acknowledge(u32int interrupt) {
+ if (interrupt < 40) outb(PIC_1, 0x20);
+ if (interrupt >= 40) outb(PIC_2, 0x20);
+}
diff --git a/worksheet2_2/pic.h b/worksheet2_2/pic.h
new file mode 100644
index 0000000..b3fda58
--- /dev/null
+++ b/worksheet2_2/pic.h
@@ -0,0 +1,14 @@
+#ifndef INCLUDE_PIC_H
+#define INCLUDE_PIC_H
+
+#include "types.h"
+
+#define PIC_1 0x20
+#define PIC_2 0xA0
+#define PIC_1_OFFSET 0x20 // Interrupt vector offset for PIC1
+#define PIC_2_OFFSET 0x28 // Interrupt vector offset for PIC2
+
+void pic_remap(s32int offset1, s32int offset2);
+void pic_acknowledge(u32int interrupt);
+
+#endif
diff --git a/worksheet2_2/pic.o b/worksheet2_2/pic.o
new file mode 100644
index 0000000000000000000000000000000000000000..97a4d53beebf351f120dc505b4738deb2d0dbe68
GIT binary patch
literal 700
zcmX^2>+L^w1_lOZ1_lO31_lNe1_p*d3=9km3J`t`h>ZnvF)}bnFfuTJXpnvo2I&VW
zjgK!$ttbJpAUHlg#5E!W!iJF`eIWfH`&5`17`Q+ZEDQ}G3WSXq7#Jj=Zen2IV}M`=
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z28QD<DlCEw3=A(G{Qv*|IE%^xWU({<|Nn<5Rb*gb;NNzj(?x~l#Wt`g&v6!&g-D_c
zAo@WHL1u!2;6)Ea45SPs26Fa`3Wyj?9mpFmQXpb5bzrf8|Ns9tAK{2SoR+4?FW&<8
z8_fM2&9xjF{LLaDw<5d&^3DrMkT#HP6I2%FA+YT4e^5gi7#JDB;m-S*0Ya~V(lekm
z$VMgx2HpZFKL$#>L1_ahEd!-_Kw-hiz;FN>zx*IyFfcI4Liu11#1~{H#}}pMCKfP&
YnTg5SdHLlzsVV8H4DtD;B}ohn0MpccAOHXW
literal 0
HcmV?d00001
diff --git a/worksheet2_2/types.h b/worksheet2_2/types.h
new file mode 100644
index 0000000..f417311
--- /dev/null
+++ b/worksheet2_2/types.h
@@ -0,0 +1,13 @@
+#ifndef INCLUDE_TYPES_H
+#define INCLUDE_TYPES_H
+
+typedef unsigned char u8int; // 8-bit unsigned integer
+typedef char s8int; // 8-bit signed integer
+
+typedef unsigned short u16int; // 16-bit unsigned integer
+typedef short s16int; // 16-bit signed integer
+
+typedef unsigned int u32int; // 32-bit unsigned integer
+typedef int s32int; // 32-bit signed integer
+
+#endif
diff --git a/worksheet_0/foo.txt b/worksheet_0/foo.txt
new file mode 100644
index 0000000..d535078
--- /dev/null
+++ b/worksheet_0/foo.txt
@@ -0,0 +1,5 @@
+10
+20
+30
+40
+54
diff --git a/worksheet_0/task1_pointer b/worksheet_0/task1_pointer
new file mode 100644
index 0000000000000000000000000000000000000000..42cc2a737cf386cddbff6d622cb5bfae888e7178
GIT binary patch
literal 33320
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diff --git a/worksheet_0/task1_pointer.c b/worksheet_0/task1_pointer.c
new file mode 100644
index 0000000..103b7d7
--- /dev/null
+++ b/worksheet_0/task1_pointer.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main() {
+ int n = 10;
+ int *ptr_to_n = &n;
+
+ // Increment the value of n using the pointer
+ (*ptr_to_n)++;
+ printf("Value of n after increment: %d\n", n);
+
+ return 0;
+}
diff --git a/worksheet_0/task1_pointer.dSYM/Contents/Info.plist b/worksheet_0/task1_pointer.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..e8b7703
--- /dev/null
+++ b/worksheet_0/task1_pointer.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+ <dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>English</string>
+ <key>CFBundleIdentifier</key>
+ <string>com.apple.xcode.dsym.task1_pointer</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundlePackageType</key>
+ <string>dSYM</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ </dict>
+</plist>
diff --git a/worksheet_0/task1_pointer.dSYM/Contents/Resources/DWARF/task1_pointer b/worksheet_0/task1_pointer.dSYM/Contents/Resources/DWARF/task1_pointer
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diff --git a/worksheet_0/task1_pointer.dSYM/Contents/Resources/Relocations/x86_64/task1_pointer.yml b/worksheet_0/task1_pointer.dSYM/Contents/Resources/Relocations/x86_64/task1_pointer.yml
new file mode 100644
index 0000000..a245ca1
--- /dev/null
+++ b/worksheet_0/task1_pointer.dSYM/Contents/Resources/Relocations/x86_64/task1_pointer.yml
@@ -0,0 +1,7 @@
+---
+triple: 'x86_64-apple-darwin'
+binary-path: '/Users/hazalveziroglu/Desktop/OperatingSytem/worksheet_1/task1_pointer'
+relocations:
+ - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x0, symBinAddr: 0x100003F40, symSize: 0x42 }
+ - { offsetInCU: 0x41, offset: 0x41, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x0, symBinAddr: 0x100003F40, symSize: 0x42 }
+...
diff --git a/worksheet_0/task2_array_pointer b/worksheet_0/task2_array_pointer
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diff --git a/worksheet_0/task2_array_pointer.c b/worksheet_0/task2_array_pointer.c
new file mode 100644
index 0000000..9ebccae
--- /dev/null
+++ b/worksheet_0/task2_array_pointer.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main() {
+ int array[3] = {10, 30, 2000};
+ int *ptr = array;
+
+ for (int i = 0; i < 3; i++) {
+ printf("Value: %d, Address: %p\n", *(ptr + i), (ptr + i));
+ }
+
+ return 0;
+}
diff --git a/worksheet_0/task2_array_pointer.dSYM/Contents/Info.plist b/worksheet_0/task2_array_pointer.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..9fe7f77
--- /dev/null
+++ b/worksheet_0/task2_array_pointer.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+ <dict>
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+ <key>CFBundleIdentifier</key>
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+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundlePackageType</key>
+ <string>dSYM</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ </dict>
+</plist>
diff --git a/worksheet_0/task2_array_pointer.dSYM/Contents/Resources/DWARF/task2_array_pointer b/worksheet_0/task2_array_pointer.dSYM/Contents/Resources/DWARF/task2_array_pointer
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diff --git a/worksheet_0/task2_array_pointer.dSYM/Contents/Resources/Relocations/x86_64/task2_array_pointer.yml b/worksheet_0/task2_array_pointer.dSYM/Contents/Resources/Relocations/x86_64/task2_array_pointer.yml
new file mode 100644
index 0000000..4d44300
--- /dev/null
+++ b/worksheet_0/task2_array_pointer.dSYM/Contents/Resources/Relocations/x86_64/task2_array_pointer.yml
@@ -0,0 +1,7 @@
+---
+triple: 'x86_64-apple-darwin'
+binary-path: '/Users/hazalveziroglu/Desktop/OperatingSytem/worksheet_1/task2_array_pointer'
+relocations:
+ - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x0, symBinAddr: 0x100003ED0, symSize: 0xA6 }
+ - { offsetInCU: 0x41, offset: 0x41, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x0, symBinAddr: 0x100003ED0, symSize: 0xA6 }
+...
diff --git a/worksheet_0/task3_array_compare b/worksheet_0/task3_array_compare
new file mode 100644
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diff --git a/worksheet_0/task3_array_compare.c b/worksheet_0/task3_array_compare.c
new file mode 100644
index 0000000..3b90e6c
--- /dev/null
+++ b/worksheet_0/task3_array_compare.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+int compare_arrays(int *arr1, int *arr2, int length) {
+ if (!arr1 || !arr2) return 0; // Null check
+
+ for (int i = 0; i < length; i++) {
+ if (arr1[i] != arr2[i]) return 0;
+ }
+ return 1;
+}
+
+int main() {
+ int array1[] = {1, 2, 3};
+ int array2[] = {1, 2, 3};
+
+ int result = compare_arrays(array1, array2, 3);
+ printf("Arrays are %s\n", result ? "equal" : "not equal");
+
+ return 0;
+}
diff --git a/worksheet_0/task3_array_compare.dSYM/Contents/Info.plist b/worksheet_0/task3_array_compare.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..90b83e7
--- /dev/null
+++ b/worksheet_0/task3_array_compare.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+ <dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>English</string>
+ <key>CFBundleIdentifier</key>
+ <string>com.apple.xcode.dsym.task3_array_compare</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundlePackageType</key>
+ <string>dSYM</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ </dict>
+</plist>
diff --git a/worksheet_0/task3_array_compare.dSYM/Contents/Resources/DWARF/task3_array_compare b/worksheet_0/task3_array_compare.dSYM/Contents/Resources/DWARF/task3_array_compare
new file mode 100644
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diff --git a/worksheet_0/task3_array_compare.dSYM/Contents/Resources/Relocations/x86_64/task3_array_compare.yml b/worksheet_0/task3_array_compare.dSYM/Contents/Resources/Relocations/x86_64/task3_array_compare.yml
new file mode 100644
index 0000000..7dda917
--- /dev/null
+++ b/worksheet_0/task3_array_compare.dSYM/Contents/Resources/Relocations/x86_64/task3_array_compare.yml
@@ -0,0 +1,8 @@
+---
+triple: 'x86_64-apple-darwin'
+binary-path: '/Users/hazalveziroglu/Desktop/OperatingSytem/worksheet_1/task3_array_compare'
+relocations:
+ - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _compare_arrays, symObjAddr: 0x0, symBinAddr: 0x100003E20, symSize: 0x90 }
+ - { offsetInCU: 0x41, offset: 0x41, size: 0x8, addend: 0x0, symName: _compare_arrays, symObjAddr: 0x0, symBinAddr: 0x100003E20, symSize: 0x90 }
+ - { offsetInCU: 0xA1, offset: 0xA1, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x90, symBinAddr: 0x100003EB0, symSize: 0xA6 }
+...
diff --git a/worksheet_0/task4_file_sum b/worksheet_0/task4_file_sum
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GIT binary patch
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diff --git a/worksheet_0/task4_file_sum.c b/worksheet_0/task4_file_sum.c
new file mode 100644
index 0000000..c0142c0
--- /dev/null
+++ b/worksheet_0/task4_file_sum.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+int main() {
+ FILE *file = fopen("foo.txt", "r");
+ if (!file) {
+ perror("Error opening file");
+ return 1;
+ }
+
+ int num, sum = 0;
+ while (fscanf(file, "%d", &num) == 1) {
+ sum += num;
+ }
+ fclose(file);
+
+ printf("Sum of numbers: %d\n", sum);
+ return 0;
+}
diff --git a/worksheet_0/task4_file_sum.dSYM/Contents/Info.plist b/worksheet_0/task4_file_sum.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..ab1a9be
--- /dev/null
+++ b/worksheet_0/task4_file_sum.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+ <dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>English</string>
+ <key>CFBundleIdentifier</key>
+ <string>com.apple.xcode.dsym.task4_file_sum</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundlePackageType</key>
+ <string>dSYM</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ </dict>
+</plist>
diff --git a/worksheet_0/task4_file_sum.dSYM/Contents/Resources/DWARF/task4_file_sum b/worksheet_0/task4_file_sum.dSYM/Contents/Resources/DWARF/task4_file_sum
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diff --git a/worksheet_0/task4_file_sum.dSYM/Contents/Resources/Relocations/x86_64/task4_file_sum.yml b/worksheet_0/task4_file_sum.dSYM/Contents/Resources/Relocations/x86_64/task4_file_sum.yml
new file mode 100644
index 0000000..7fe5242
--- /dev/null
+++ b/worksheet_0/task4_file_sum.dSYM/Contents/Resources/Relocations/x86_64/task4_file_sum.yml
@@ -0,0 +1,7 @@
+---
+triple: 'x86_64-apple-darwin'
+binary-path: '/Users/hazalveziroglu/Desktop/OperatingSytem/worksheet_1/task4_file_sum'
+relocations:
+ - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x0, symBinAddr: 0x100003EA0, symSize: 0xA7 }
+ - { offsetInCU: 0x41, offset: 0x41, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x0, symBinAddr: 0x100003EA0, symSize: 0xA7 }
+...
diff --git a/worksheet_0/task5_swap_function b/worksheet_0/task5_swap_function
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diff --git a/worksheet_0/task5_swap_function.c b/worksheet_0/task5_swap_function.c
new file mode 100644
index 0000000..bdef2ad
--- /dev/null
+++ b/worksheet_0/task5_swap_function.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+
+void swap(void *x, void *y, size_t size) {
+ char temp[size];
+ for (size_t i = 0; i < size; i++) {
+ temp[i] = ((char *)x)[i];
+ ((char *)x)[i] = ((char *)y)[i];
+ ((char *)y)[i] = temp[i];
+ }
+}
+
+int main() {
+ int a = 5, b = 10;
+ swap(&a, &b, sizeof(int));
+ printf("a: %d, b: %d\n", a, b);
+
+ double c = 1.23, d = 4.56;
+ swap(&c, &d, sizeof(double));
+ printf("c: %.2f, d: %.2f\n", c, d);
+
+ return 0;
+}
diff --git a/worksheet_0/task5_swap_function.dSYM/Contents/Info.plist b/worksheet_0/task5_swap_function.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..5618a0f
--- /dev/null
+++ b/worksheet_0/task5_swap_function.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+ <dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>English</string>
+ <key>CFBundleIdentifier</key>
+ <string>com.apple.xcode.dsym.task5_swap_function</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundlePackageType</key>
+ <string>dSYM</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ </dict>
+</plist>
diff --git a/worksheet_0/task5_swap_function.dSYM/Contents/Resources/DWARF/task5_swap_function b/worksheet_0/task5_swap_function.dSYM/Contents/Resources/DWARF/task5_swap_function
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diff --git a/worksheet_0/task5_swap_function.dSYM/Contents/Resources/Relocations/x86_64/task5_swap_function.yml b/worksheet_0/task5_swap_function.dSYM/Contents/Resources/Relocations/x86_64/task5_swap_function.yml
new file mode 100644
index 0000000..559320c
--- /dev/null
+++ b/worksheet_0/task5_swap_function.dSYM/Contents/Resources/Relocations/x86_64/task5_swap_function.yml
@@ -0,0 +1,8 @@
+---
+triple: 'x86_64-apple-darwin'
+binary-path: '/Users/hazalveziroglu/Desktop/OperatingSytem/worksheet_1/task5_swap_function'
+relocations:
+ - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _swap, symObjAddr: 0x0, symBinAddr: 0x100003DE0, symSize: 0xF0 }
+ - { offsetInCU: 0x41, offset: 0x41, size: 0x8, addend: 0x0, symName: _swap, symObjAddr: 0x0, symBinAddr: 0x100003DE0, symSize: 0xF0 }
+ - { offsetInCU: 0xB8, offset: 0xB8, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0xF0, symBinAddr: 0x100003ED0, symSize: 0x8F }
+...
diff --git a/worksheet_0/task6_print_2d_array b/worksheet_0/task6_print_2d_array
new file mode 100644
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GIT binary patch
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diff --git a/worksheet_0/task6_print_2d_array.c b/worksheet_0/task6_print_2d_array.c
new file mode 100644
index 0000000..4e3ee2e
--- /dev/null
+++ b/worksheet_0/task6_print_2d_array.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+void print_array(int *arr, int width, int height) {
+ for (int i = 0; i < height; i++) {
+ for (int j = 0; j < width; j++) {
+ printf("%d ", *(arr + i * width + j));
+ }
+ printf("\n");
+ }
+}
+
+int main() {
+ int array[3][3] = {
+ {1, 2, 3},
+ {4, 5, 6},
+ {7, 8, 9}
+ };
+ print_array(&array[0][0], 3, 3);
+ return 0;
+}
diff --git a/worksheet_0/task6_print_2d_array.dSYM/Contents/Info.plist b/worksheet_0/task6_print_2d_array.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..04744d1
--- /dev/null
+++ b/worksheet_0/task6_print_2d_array.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+ <dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>English</string>
+ <key>CFBundleIdentifier</key>
+ <string>com.apple.xcode.dsym.task6_print_2d_array</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundlePackageType</key>
+ <string>dSYM</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ </dict>
+</plist>
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diff --git a/worksheet_0/task6_print_2d_array.dSYM/Contents/Resources/Relocations/x86_64/task6_print_2d_array.yml b/worksheet_0/task6_print_2d_array.dSYM/Contents/Resources/Relocations/x86_64/task6_print_2d_array.yml
new file mode 100644
index 0000000..7e8bae5
--- /dev/null
+++ b/worksheet_0/task6_print_2d_array.dSYM/Contents/Resources/Relocations/x86_64/task6_print_2d_array.yml
@@ -0,0 +1,8 @@
+---
+triple: 'x86_64-apple-darwin'
+binary-path: '/Users/hazalveziroglu/Desktop/OperatingSytem/worksheet_1/task6_print_2d_array'
+relocations:
+ - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _print_array, symObjAddr: 0x0, symBinAddr: 0x100003E60, symSize: 0xA0 }
+ - { offsetInCU: 0x41, offset: 0x41, size: 0x8, addend: 0x0, symName: _print_array, symObjAddr: 0x0, symBinAddr: 0x100003E60, symSize: 0xA0 }
+ - { offsetInCU: 0xB9, offset: 0xB9, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0xA0, symBinAddr: 0x100003F00, symSize: 0x68 }
+...
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diff --git a/worksheet_0/task7_tic_tac_toe.c b/worksheet_0/task7_tic_tac_toe.c
new file mode 100644
index 0000000..67c4807
--- /dev/null
+++ b/worksheet_0/task7_tic_tac_toe.c
@@ -0,0 +1,59 @@
+#include <stdio.h>
+
+void print_board(char *board) {
+ for (int i = 0; i < 3; i++) {
+ for (int j = 0; j < 3; j++) {
+ printf("%c ", *(board + i * 3 + j));
+ }
+ printf("\n");
+ }
+}
+
+int check_winner(char *board) {
+ for (int i = 0; i < 3; i++) {
+ if (*(board + i * 3) == *(board + i * 3 + 1) && *(board + i * 3 + 1) == *(board + i * 3 + 2) && *(board + i * 3) != ' ')
+ return 1;
+ if (*(board + i) == *(board + i + 3) && *(board + i + 3) == *(board + i + 6) && *(board + i) != ' ')
+ return 1;
+ }
+ if (*(board) == *(board + 4) && *(board + 4) == *(board + 8) && *(board) != ' ') return 1;
+ if (*(board + 2) == *(board + 4) && *(board + 4) == *(board + 6) && *(board + 2) != ' ') return 1;
+ return 0;
+}
+
+int main() {
+ char board[3][3] = {
+ {' ', ' ', ' '},
+ {' ', ' ', ' '},
+ {' ', ' ', ' '}
+ };
+ int player = 1, moves = 0;
+
+ while (moves < 9) {
+ print_board(&board[0][0]);
+ int x, y;
+ printf("Player %d, enter row and column (0-2): ", player);
+ scanf("%d %d", &x, &y);
+ // Check if the input is within bounds
+ if (x < 0 || x > 2 || y < 0 || y > 2) {
+ printf("Invalid input. Please enter row and column between 0 and 2.\n");
+ continue;
+ }
+
+ // Check if the cell is already occupied
+ if (board[x][y] == ' ') {
+ board[x][y] = (player == 1) ? 'X' : 'O';
+ if (check_winner(&board[0][0])) {
+ print_board(&board[0][0]);
+ printf("Player %d wins!\n", player);
+ return 0;
+ }
+ player = 3 - player; // Switch player
+ moves++;
+ } else {
+ printf("Cell already occupied. Try again.\n");
+ }
+ }
+ printf("It's a draw!\n");
+ return 0;
+}
diff --git a/worksheet_0/task7_tic_tac_toe.dSYM/Contents/Info.plist b/worksheet_0/task7_tic_tac_toe.dSYM/Contents/Info.plist
new file mode 100644
index 0000000..6c620fd
--- /dev/null
+++ b/worksheet_0/task7_tic_tac_toe.dSYM/Contents/Info.plist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+ <dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>English</string>
+ <key>CFBundleIdentifier</key>
+ <string>com.apple.xcode.dsym.task7_tic_tac_toe</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundlePackageType</key>
+ <string>dSYM</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ </dict>
+</plist>
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diff --git a/worksheet_0/task7_tic_tac_toe.dSYM/Contents/Resources/Relocations/x86_64/task7_tic_tac_toe.yml b/worksheet_0/task7_tic_tac_toe.dSYM/Contents/Resources/Relocations/x86_64/task7_tic_tac_toe.yml
new file mode 100644
index 0000000..6a20380
--- /dev/null
+++ b/worksheet_0/task7_tic_tac_toe.dSYM/Contents/Resources/Relocations/x86_64/task7_tic_tac_toe.yml
@@ -0,0 +1,9 @@
+---
+triple: 'x86_64-apple-darwin'
+binary-path: '/Users/hazalveziroglu/Desktop/OperatingSytem/worksheet_1/task7_tic_tac_toe'
+relocations:
+ - { offsetInCU: 0x26, offset: 0x26, size: 0x8, addend: 0x0, symName: _print_board, symObjAddr: 0x0, symBinAddr: 0x100003AF0, symSize: 0x90 }
+ - { offsetInCU: 0x41, offset: 0x41, size: 0x8, addend: 0x0, symName: _print_board, symObjAddr: 0x0, symBinAddr: 0x100003AF0, symSize: 0x90 }
+ - { offsetInCU: 0x9D, offset: 0x9D, size: 0x8, addend: 0x0, symName: _check_winner, symObjAddr: 0x90, symBinAddr: 0x100003B80, symSize: 0x1B0 }
+ - { offsetInCU: 0xE1, offset: 0xE1, size: 0x8, addend: 0x0, symName: _main, symObjAddr: 0x240, symBinAddr: 0x100003D30, symSize: 0x1A5 }
+...
diff --git a/worksheet_1/README.md b/worksheet_1/README.md
new file mode 100644
index 0000000..c4ab675
--- /dev/null
+++ b/worksheet_1/README.md
@@ -0,0 +1,9 @@
+# Operating Systems Worksheet 1
+
+## Overview
+This repository contains my solutions for Worksheet 1 of the Operating Systems module. The tasks include:
+- Basic assembler programming.
+- Translating C loops into assembler.
+- Using Makefiles to automate builds.
+
+## Repository Structure
diff --git a/worksheet_1/makefile b/worksheet_1/makefile
new file mode 100644
index 0000000..1a1f431
--- /dev/null
+++ b/worksheet_1/makefile
@@ -0,0 +1,28 @@
+all: task1 task2 task3 task4
+
+task1: src/task1.asm src/asm_io.asm src/driver.c
+ nasm -f elf src/task1.asm -o src/task1.o
+ nasm -f elf src/asm_io.asm -o src/asm_io.o
+ gcc -m32 -c src/driver.c -o src/driver.o
+ gcc -m32 src/task1.o src/asm_io.o src/driver.o -o task1
+
+task2: src/task2.asm src/asm_io.asm src/driver.c
+ nasm -f elf src/task2.asm -o src/task2.o
+ nasm -f elf src/asm_io.asm -o src/asm_io.o
+ gcc -m32 -c src/driver.c -o src/driver.o
+ gcc -m32 src/task2.o src/asm_io.o src/driver.o -o task2
+
+task3: src/task3.asm src/asm_io.asm src/driver.c
+ nasm -f elf src/task3.asm -o src/task3.o
+ nasm -f elf src/asm_io.asm -o src/asm_io.o
+ gcc -m32 -c src/driver.c -o src/driver.o
+ gcc -m32 src/task3.o src/asm_io.o src/driver.o -o task3
+
+task4: src/task4.asm src/asm_io.asm src/driver.c
+ nasm -f elf src/task4.asm -o src/task4.o
+ nasm -f elf src/asm_io.asm -o src/asm_io.o
+ gcc -m32 -c src/driver.c -o src/driver.o
+ gcc -m32 src/task4.o src/asm_io.o src/driver.o -o task4
+
+clean:
+ rm -f task1 task2 task3 task4 src/*.o
diff --git a/worksheet_1/src/asm_io.asm b/worksheet_1/src/asm_io.asm
new file mode 100644
index 0000000..2e6e666
--- /dev/null
+++ b/worksheet_1/src/asm_io.asm
@@ -0,0 +1,26 @@
+;
+; file: asm_io.asm
+; Assembly I/O routines
+; To assemble for DJGPP
+; nasm -f coff -d COFF_TYPE asm_io.asm
+; To assemble for Borland C++ 5.x
+; nasm -f obj -d OBJ_TYPE asm_io.asm
+; To assemble for Microsoft Visual Studio
+; nasm -f win32 -d COFF_TYPE asm_io.asm
+; To assemble for Linux
+; nasm -f elf -d ELF_TYPE asm_io.asm
+; To assemble for Watcom
+; nasm -f obj -d OBJ_TYPE -d WATCOM asm_io.asm
+; IMPORTANT NOTES FOR WATCOM
+; The Watcom compiler's C library does not use the
+; standard C calling convention. For example, the
+; putchar() function gets its argument from the
+; the value of EAX, not the stack.
+
+
+%define NL 10
+%define CF_MASK 00000001h
+%define PF_MASK 00000004h
+%define AF_MASK 00000010h
+%define ZF_MASK 00000040h
+%define SF_MASK 00000080h
\ No newline at end of file
diff --git a/worksheet_1/src/asm_io.inc b/worksheet_1/src/asm_io.inc
new file mode 100644
index 0000000..9163be3
--- /dev/null
+++ b/worksheet_1/src/asm_io.inc
@@ -0,0 +1,30 @@
+ extern read_int, print_int, print_string
+ extern read_char, print_char, print_nl
+ extern sub_dump_regs, sub_dump_mem, sub_dump_math, sub_dump_stack
+
+%macro dump_regs 1
+ push dword %1
+ call sub_dump_regs
+%endmacro
+
+
+;
+; usage: dump_mem label, start-address, # paragraphs
+%macro dump_mem 3
+ push dword %1
+ push dword %2
+ push dword %3
+ call sub_dump_mem
+%endmacro
+
+%macro dump_math 1
+ push dword %1
+ call sub_dump_math
+%endmacro
+
+%macro dump_stack 3
+ push dword %3
+ push dword %2
+ push dword %1
+ call sub_dump_stack
+%endmacro
\ No newline at end of file
diff --git a/worksheet_1/src/asm_io.o b/worksheet_1/src/asm_io.o
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diff --git a/worksheet_1/src/driver.c b/worksheet_1/src/driver.c
new file mode 100644
index 0000000..d386c74
--- /dev/null
+++ b/worksheet_1/src/driver.c
@@ -0,0 +1,7 @@
+int __attribute__((cdecl)) asm_main(void);
+
+int main() {
+ int ret_status;
+ ret_status = asm_main();
+ return ret_status;
+}
diff --git a/worksheet_1/src/driver.o b/worksheet_1/src/driver.o
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diff --git a/worksheet_1/src/task1.asm b/worksheet_1/src/task1.asm
new file mode 100644
index 0000000..0442b2c
--- /dev/null
+++ b/worksheet_1/src/task1.asm
@@ -0,0 +1,17 @@
+section .data
+ num1 dd 10
+ num2 dd 20
+ result dd 0
+
+section .text
+ global asm_main
+ extern print_int
+
+asm_main:
+ mov eax, [num1]
+ add eax, [num2]
+ mov [result], eax
+ push eax
+ call print_int
+ add esp, 4
+ ret
diff --git a/worksheet_1/src/task1.o b/worksheet_1/src/task1.o
new file mode 100644
index 0000000000000000000000000000000000000000..16322411018601cd7b758cef60386d91406c0583
GIT binary patch
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diff --git a/worksheet_1/src/task2.asm b/worksheet_1/src/task2.asm
new file mode 100644
index 0000000..a2eea57
--- /dev/null
+++ b/worksheet_1/src/task2.asm
@@ -0,0 +1,53 @@
+section .bss
+ name resb 32
+ count resd 1
+
+section .text
+ global asm_main
+ extern print_string, print_int, read_int, read_string
+
+asm_main:
+ ; Prompt for name
+ push message_name
+ call print_string
+ add esp, 4
+
+ push name
+ call read_string
+ add esp, 4
+
+ ; Prompt for count
+ push message_count
+ call print_string
+ add esp, 4
+
+ push count
+ call read_int
+ add esp, 4
+
+ ; Validate count
+ mov eax, [count]
+ cmp eax, 50
+ jl invalid
+ cmp eax, 100
+ jg invalid
+
+ ; Print welcome message
+print_loop:
+ push name
+ call print_string
+ add esp, 4
+ dec eax
+ jnz print_loop
+ ret
+
+invalid:
+ push error_message
+ call print_string
+ add esp, 4
+ ret
+
+section .data
+ message_name db "Enter your name: ", 0
+ message_count db "Enter a number (50-100): ", 0
+ error_message db "Invalid input!", 0
diff --git a/worksheet_1/src/task3.asm b/worksheet_1/src/task3.asm
new file mode 100644
index 0000000..91d006b
--- /dev/null
+++ b/worksheet_1/src/task3.asm
@@ -0,0 +1,23 @@
+section .data
+ array dd 1, 2, 3, ..., 100 ; Replace ... with remaining numbers
+ sum dd 0
+
+section .text
+ global asm_main
+ extern print_int
+
+asm_main:
+ mov ecx, 100 ; Counter for 100 elements
+ mov esi, array ; Start of the array
+ xor eax, eax ; Accumulator
+
+sum_loop:
+ add eax, [esi]
+ add esi, 4 ; Move to the next integer
+ loop sum_loop
+
+ mov [sum], eax
+ push eax
+ call print_int
+ add esp, 4
+ ret
diff --git a/worksheet_1/src/task4.asm b/worksheet_1/src/task4.asm
new file mode 100644
index 0000000..a7facb2
--- /dev/null
+++ b/worksheet_1/src/task4.asm
@@ -0,0 +1,66 @@
+section .bss
+ start resd 1
+ end resd 1
+
+section .data
+ array dd 1, 2, 3, ..., 100 ; Replace ... with remaining numbers
+ sum dd 0
+
+section .text
+ global asm_main
+ extern print_int, read_int, print_string
+
+asm_main:
+ ; Prompt for range
+ push message_start
+ call print_string
+ add esp, 4
+ push start
+ call read_int
+ add esp, 4
+
+ push message_end
+ call print_string
+ add esp, 4
+ push end
+ call read_int
+ add esp, 4
+
+ ; Validate range
+ mov eax, [start]
+ cmp eax, 1
+ jl invalid
+ mov ebx, [end]
+ cmp ebx, 100
+ jg invalid
+ cmp eax, ebx
+ jg invalid
+
+ ; Calculate sum
+ xor ecx, ecx
+ mov esi, array
+ sub eax, 1
+ add esi, eax * 4 ; Adjust start index
+ mov ecx, ebx
+ sub ecx, eax ; Range length
+
+sum_range:
+ add eax, [esi]
+ add esi, 4
+ loop sum_range
+
+ push eax
+ call print_int
+ add esp, 4
+ ret
+
+invalid:
+ push error_message
+ call print_string
+ add esp, 4
+ ret
+
+section .data
+ message_start db "Enter start of range (1-100): ", 0
+ message_end db "Enter end of range (1-100): ", 0
+ error_message db "Invalid range!", 0
--
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