diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..eb509bc74b20e1a50268aa05d5b9d6130627acd2
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,40 @@
+# Compiler and Assembler
+CC = gcc
+ASM = nasm
+CFLAGS = -m32
+ASMFLAGS = -f elf
+
+# Files and Targets
+TARGETS = task1 task2
+DRIVER = driver.c
+ASM_IO = asm_io.asm
+
+all: $(TARGETS)
+
+# Rule to build task1
+task1: driver.o task1.o asm_io.o
+ $(CC) $(CFLAGS) -o task1 driver.o task1.o asm_io.o
+
+# Rule to build task2
+task2: driver.o task2.o asm_io.o
+ $(CC) $(CFLAGS) -o task2 driver.o task2.o asm_io.o
+
+# Compile the driver C file
+driver.o: $(DRIVER)
+ $(CC) $(CFLAGS) -c $(DRIVER) -o driver.o
+
+# Assemble task1.asm
+task1.o: task1.asm
+ $(ASM) $(ASMFLAGS) task1.asm -o task1.o
+
+# Assemble task2.asm
+task2.o: task2.asm
+ $(ASM) $(ASMFLAGS) task2.asm -o task2.o
+
+# Assemble asm_io.asm
+asm_io.o: $(ASM_IO)
+ $(ASM) $(ASMFLAGS) asm_io.asm -o asm_io.o
+
+# Clean rule to remove all generated files
+clean:
+ rm -f *.o $(TARGETS)
diff --git a/src/README.md b/src/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..ec4d1ebd536c5c5afa18d9ef78e714d5e9070745
--- /dev/null
+++ b/src/README.md
@@ -0,0 +1,64 @@
+Assembler Program: task1.asm
+The assembler program performs the following operations:
+
+Defines two integers (num1 and num2) in the .data section.
+Adds these integers in the .text section using the eax register.
+Outputs the result using the print_int function from asm_io.asm.
+Code Snippet:
+
+asm
+Copy code
+section .data
+ num1 dd 5 ; First number
+ num2 dd 10 ; Second number
+ result dd 0 ; Result placeholder
+
+section .text
+ global asm_main
+ extern print_int ; Provided in asm_io.asm
+
+asm_main:
+ mov eax, [num1] ; Load num1 into eax
+ add eax, [num2] ; Add num2 to eax
+ mov [result], eax ; Store result
+ push eax ; Push result to stack
+ call print_int ; Call the print function
+ add esp, 4 ; Clean up the stack
+ ret
+C Driver Program: driver.c
+The C program interfaces with the assembler function asm_main to execute the operations.
+
+Code Snippet:
+
+c
+Copy code
+#include <stdio.h>
+
+int __attribute__((cdecl)) asm_main(void);
+
+int main() {
+ int ret_status;
+ ret_status = asm_main();
+ return ret_status;
+}
+Compilation and Execution
+Compilation Commands
+The following commands were used to compile and link the program:
+
+bash
+Copy code
+nasm -f elf task1.asm -o task1.o
+nasm -f elf asm_io.asm -o asm_io.o
+gcc -m32 -c driver.c -o driver.o
+gcc -m32 driver.o task1.o asm_io.o -o task1
+Execution
+Run the program with:
+
+bash
+Copy code
+./task1
+Expected Output
+The program outputs the sum of num1 and num2:
+
+Copy code
+15
\ No newline at end of file
diff --git a/src/asm_io.asm b/src/asm_io.asm
new file mode 100644
index 0000000000000000000000000000000000000000..ad52628a8c8d8660a16e358d2e282ec49252d599
--- /dev/null
+++ b/src/asm_io.asm
@@ -0,0 +1,502 @@
+;
+; 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
+%define DF_MASK 00000400h
+%define OF_MASK 00000800h
+
+
+;
+; Linux C doesn't put underscores on labels
+;
+; %ifdef ELF_TYPE
+%define _scanf scanf
+%define _printf printf
+%define _getchar getchar
+%define _putchar putchar
+; %endif
+
+; ;
+; ; Watcom puts underscores at end of label
+; ;
+; %ifdef WATCOM
+; %define _scanf scanf_
+; %define _printf printf
+; %define _getchar getchar_
+; %define _putchar putchar_
+; %endif
+
+%ifdef OBJ_TYPE
+segment .data public align=4 class=data use32
+%else
+segment .data
+%endif
+
+int_format db "%i", 0
+string_format db "%s", 0
+reg_format db "Register Dump # %d", NL
+ db "EAX = %.8X EBX = %.8X ECX = %.8X EDX = %.8X", NL
+ db "ESI = %.8X EDI = %.8X EBP = %.8X ESP = %.8X", NL
+ db "EIP = %.8X FLAGS = %.4X %s %s %s %s %s %s %s", NL
+ db 0
+carry_flag db "CF", 0
+zero_flag db "ZF", 0
+sign_flag db "SF", 0
+parity_flag db "PF", 0
+overflow_flag db "OF", 0
+dir_flag db "DF", 0
+aux_carry_flag db "AF", 0
+unset_flag db " ", 0
+mem_format1 db "Memory Dump # %d Address = %.8X", NL, 0
+mem_format2 db "%.8X ", 0
+mem_format3 db "%.2X ", 0
+stack_format db "Stack Dump # %d", NL
+ db "EBP = %.8X ESP = %.8X", NL, 0
+stack_line_format db "%+4d %.8X %.8X", NL, 0
+math_format1 db "Math Coprocessor Dump # %d Control Word = %.4X"
+ db " Status Word = %.4X", NL, 0
+valid_st_format db "ST%d: %.10g", NL, 0
+invalid_st_format db "ST%d: Invalid ST", NL, 0
+empty_st_format db "ST%d: Empty", NL, 0
+
+;
+; code is put in the _TEXT segment
+;
+%ifdef OBJ_TYPE
+segment text public align=1 class=code use32
+%else
+segment .text
+%endif
+ global read_int, print_int, print_string, read_char
+ global print_char, print_nl, sub_dump_regs, sub_dump_mem
+ global sub_dump_math, sub_dump_stack
+ extern _scanf, _printf, _getchar, _putchar
+
+read_int:
+ enter 4,0
+ pusha
+ pushf
+
+ lea eax, [ebp-4]
+ push eax
+ push dword int_format
+ call _scanf
+ pop ecx
+ pop ecx
+
+ popf
+ popa
+ mov eax, [ebp-4]
+ leave
+ ret
+
+print_int:
+ enter 0,0
+ pusha
+ pushf
+
+ push eax
+ push dword int_format
+ call _printf
+ pop ecx
+ pop ecx
+
+ popf
+ popa
+ leave
+ ret
+
+print_string:
+ enter 0,0
+ pusha
+ pushf
+
+ push eax
+ push dword string_format
+ call _printf
+ pop ecx
+ pop ecx
+
+ popf
+ popa
+ leave
+ ret
+
+read_char:
+ enter 4,0
+ pusha
+ pushf
+
+ call _getchar
+ mov [ebp-4], eax
+
+ popf
+ popa
+ mov eax, [ebp-4]
+ leave
+ ret
+
+print_char:
+ enter 0,0
+ pusha
+ pushf
+
+%ifndef WATCOM
+ push eax
+%endif
+ call _putchar
+%ifndef WATCOM
+ pop ecx
+%endif
+
+ popf
+ popa
+ leave
+ ret
+
+
+print_nl:
+ enter 0,0
+ pusha
+ pushf
+
+%ifdef WATCOM
+ mov eax, 10 ; WATCOM doesn't use the stack here
+%else
+ push dword 10 ; 10 == ASCII code for \n
+%endif
+ call _putchar
+%ifndef WATCOM
+ pop ecx
+%endif
+ popf
+ popa
+ leave
+ ret
+
+
+sub_dump_regs:
+ enter 4,0
+ pusha
+ pushf
+ mov eax, [esp] ; read FLAGS back off stack
+ mov [ebp-4], eax ; save flags
+
+;
+; show which FLAGS are set
+;
+ test eax, CF_MASK
+ jz cf_off
+ mov eax, carry_flag
+ jmp short push_cf
+cf_off:
+ mov eax, unset_flag
+push_cf:
+ push eax
+
+ test dword [ebp-4], PF_MASK
+ jz pf_off
+ mov eax, parity_flag
+ jmp short push_pf
+pf_off:
+ mov eax, unset_flag
+push_pf:
+ push eax
+
+ test dword [ebp-4], AF_MASK
+ jz af_off
+ mov eax, aux_carry_flag
+ jmp short push_af
+af_off:
+ mov eax, unset_flag
+push_af:
+ push eax
+
+ test dword [ebp-4], ZF_MASK
+ jz zf_off
+ mov eax, zero_flag
+ jmp short push_zf
+zf_off:
+ mov eax, unset_flag
+push_zf:
+ push eax
+
+ test dword [ebp-4], SF_MASK
+ jz sf_off
+ mov eax, sign_flag
+ jmp short push_sf
+sf_off:
+ mov eax, unset_flag
+push_sf:
+ push eax
+
+ test dword [ebp-4], DF_MASK
+ jz df_off
+ mov eax, dir_flag
+ jmp short push_df
+df_off:
+ mov eax, unset_flag
+push_df:
+ push eax
+
+ test dword [ebp-4], OF_MASK
+ jz of_off
+ mov eax, overflow_flag
+ jmp short push_of
+of_off:
+ mov eax, unset_flag
+push_of:
+ push eax
+
+ push dword [ebp-4] ; FLAGS
+ mov eax, [ebp+4]
+ sub eax, 10 ; EIP on stack is 10 bytes ahead of orig
+ push eax ; EIP
+ lea eax, [ebp+12]
+ push eax ; original ESP
+ push dword [ebp] ; original EBP
+ push edi
+ push esi
+ push edx
+ push ecx
+ push ebx
+ push dword [ebp-8] ; original EAX
+ push dword [ebp+8] ; # of dump
+ push dword reg_format
+ call _printf
+ add esp, 76
+ popf
+ popa
+ leave
+ ret 4
+
+sub_dump_stack:
+ enter 0,0
+ pusha
+ pushf
+
+ lea eax, [ebp+20]
+ push eax ; original ESP
+ push dword [ebp] ; original EBP
+ push dword [ebp+8] ; # of dump
+ push dword stack_format
+ call _printf
+ add esp, 16
+
+ mov ebx, [ebp] ; ebx = original ebp
+ mov eax, [ebp+16] ; eax = # dwords above ebp
+ shl eax, 2 ; eax *= 4
+ add ebx, eax ; ebx = & highest dword in stack to display
+ mov edx, [ebp+16]
+ mov ecx, edx
+ add ecx, [ebp+12]
+ inc ecx ; ecx = # of dwords to display
+
+stack_line_loop:
+ push edx
+ push ecx ; save ecx & edx
+
+ push dword [ebx] ; value on stack
+ push ebx ; address of value on stack
+ mov eax, edx
+ sal eax, 2 ; eax = 4*edx
+ push eax ; offset from ebp
+ push dword stack_line_format
+ call _printf
+ add esp, 16
+
+ pop ecx
+ pop edx
+
+ sub ebx, 4
+ dec edx
+ loop stack_line_loop
+
+ popf
+ popa
+ leave
+ ret 12
+
+
+sub_dump_mem:
+ enter 0,0
+ pusha
+ pushf
+
+ push dword [ebp+12]
+ push dword [ebp+16]
+ push dword mem_format1
+ call _printf
+ add esp, 12
+ mov esi, [ebp+12] ; address
+ and esi, 0FFFFFFF0h ; move to start of paragraph
+ mov ecx, [ebp+8]
+ inc ecx
+mem_outer_loop:
+ push ecx
+ push esi
+ push dword mem_format2
+ call _printf
+ add esp, 8
+
+ xor ebx, ebx
+mem_hex_loop:
+ xor eax, eax
+ mov al, [esi + ebx]
+ push eax
+ push dword mem_format3
+ call _printf
+ add esp, 8
+ inc ebx
+ cmp ebx, 16
+ jl mem_hex_loop
+
+ mov eax, '"'
+ call print_char
+ xor ebx, ebx
+mem_char_loop:
+ xor eax, eax
+ mov al, [esi+ebx]
+ cmp al, 32
+ jl non_printable
+ cmp al, 126
+ jg non_printable
+ jmp short mem_char_loop_continue
+non_printable:
+ mov eax, '?'
+mem_char_loop_continue:
+ call print_char
+
+ inc ebx
+ cmp ebx, 16
+ jl mem_char_loop
+
+ mov eax, '"'
+ call print_char
+ call print_nl
+
+ add esi, 16
+ pop ecx
+ loop mem_outer_loop
+
+ popf
+ popa
+ leave
+ ret 12
+
+; function sub_dump_math
+; prints out state of math coprocessor without modifying the coprocessor
+; or regular processor state
+; Parameters:
+; dump number - dword at [ebp+8]
+; Local variables:
+; ebp-108 start of fsave buffer
+; ebp-116 temp double
+; Notes: This procedure uses the Pascal convention.
+; fsave buffer structure:
+; ebp-108 control word
+; ebp-104 status word
+; ebp-100 tag word
+; ebp-80 ST0
+; ebp-70 ST1
+; ebp-60 ST2 ...
+; ebp-10 ST7
+;
+sub_dump_math:
+ enter 116,0
+ pusha
+ pushf
+
+ fsave [ebp-108] ; save coprocessor state to memory
+ mov eax, [ebp-104] ; status word
+ and eax, 0FFFFh
+ push eax
+ mov eax, [ebp-108] ; control word
+ and eax, 0FFFFh
+ push eax
+ push dword [ebp+8]
+ push dword math_format1
+ call _printf
+ add esp, 16
+;
+; rotate tag word so that tags in same order as numbers are
+; in the stack
+;
+ mov cx, [ebp-104] ; ax = status word
+ shr cx, 11
+ and cx, 7 ; cl = physical state of number on stack top
+ mov bx, [ebp-100] ; bx = tag word
+ shl cl,1 ; cl *= 2
+ ror bx, cl ; move top of stack tag to lowest bits
+
+ mov edi, 0 ; edi = stack number of number
+ lea esi, [ebp-80] ; esi = address of ST0
+ mov ecx, 8 ; ecx = loop counter
+tag_loop:
+ push ecx
+ mov ax, 3
+ and ax, bx ; ax = current tag
+ or ax, ax ; 00 -> valid number
+ je valid_st
+ cmp ax, 1 ; 01 -> zero
+ je zero_st
+ cmp ax, 2 ; 10 -> invalid number
+ je invalid_st
+ push edi ; 11 -> empty
+ push dword empty_st_format
+ call _printf
+ add esp, 8
+ jmp short cont_tag_loop
+zero_st:
+ fldz
+ jmp short print_real
+valid_st:
+ fld tword [esi]
+print_real:
+ fstp qword [ebp-116]
+ push dword [ebp-112]
+ push dword [ebp-116]
+ push edi
+ push dword valid_st_format
+ call _printf
+ add esp, 16
+ jmp short cont_tag_loop
+invalid_st:
+ push edi
+ push dword invalid_st_format
+ call _printf
+ add esp, 8
+cont_tag_loop:
+ ror bx, 2 ; mov next tag into lowest bits
+ inc edi
+ add esi, 10 ; mov to next number on stack
+ pop ecx
+ loop tag_loop
+
+ frstor [ebp-108] ; restore coprocessor state
+ popf
+ popa
+ leave
+ ret 4
diff --git a/src/asm_io.inc b/src/asm_io.inc
new file mode 100644
index 0000000000000000000000000000000000000000..9163be3955bb418e8b5d74d9004b38cc45f7cfa4
--- /dev/null
+++ b/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/src/driver.c b/src/driver.c
new file mode 100644
index 0000000000000000000000000000000000000000..93afaf9597bb78f9a097f12a8faec6767a61d92d
--- /dev/null
+++ b/src/driver.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int __attribute__((cdecl)) asm_main(void);
+
+int main() {
+ int ret_status;
+ ret_status = asm_main();
+ return ret_status;
+}
diff --git a/src/task1.asm b/src/task1.asm
new file mode 100644
index 0000000000000000000000000000000000000000..afd1275137a764d6416eb048fb940ff9ed57393d
--- /dev/null
+++ b/src/task1.asm
@@ -0,0 +1,18 @@
+; task1.asm
+section .data
+ num1 dd 5 ; First number
+ num2 dd 10 ; Second number
+ result dd 0 ; Result placeholder
+
+section .text
+ global asm_main
+ extern print_int ; Provided in asm_io.asm
+
+asm_main:
+ mov eax, [num1] ; Load num1 into eax
+ add eax, [num2] ; Add num2 to eax
+ mov [result], eax ; Store result
+ push eax ; Push result to stack
+ call print_int ; Call the print function
+ add esp, 4 ; Clean up the stack
+ ret
diff --git a/src/task2.asm b/src/task2.asm
new file mode 100644
index 0000000000000000000000000000000000000000..9fe5da823bc94c6d5debb4ff10b090afe163ce3a
--- /dev/null
+++ b/src/task2.asm
@@ -0,0 +1,75 @@
+%include "asm_io.inc"
+
+segment .data
+msg1 db "Hello,please enter your name: ", 0
+msg2 db "Enter how many times you want your name to be printed(50-100)", 0
+welcome_msg db "Welcome, ", 0
+ error_msg db "Invalid input. Please enter a number between 50 and 100.", 0
+
+
+section .bss
+ name resb 100 ; reserve space for the name
+ num resd 10 ; reserve space for the number
+
+segment .text
+global asm_main
+asm_main:
+
+
+pusha
+ ; Print message for user's name
+mov eax, msg1
+call print_string
+call print_nl
+
+
+; Read name
+ mov eax, 3
+ mov ebx, 0
+ mov ecx, name
+ mov edx, 100
+ int 0x80
+ call print_nl ; Add newline after user input
+
+
+ ; Print message for second integer
+prmopt_num:
+ mov eax, msg2
+ call print_string
+ call read_int
+ mov [num], eax
+
+ ; Check value
+ cmp eax, 50
+ jle error
+ cmp eax, 100
+ jg error
+
+ ; Move the input number to a loop counter
+ mov ecx, eax
+
+; print_name
+ print_name:
+ mov eax, welcome_msg
+ call print_string
+ mov eax, name
+ call print_string
+ call print_nl
+ dec ecx ; Decrement counter for loop
+ cmp ecx, 0 ; Check if loop count is zero
+ jne print_name ; Jump back to loop if not zero
+ jmp exit
+
+
+ exit:
+ popa
+ ret
+
+
+error:
+ mov eax, 4
+ mov ebx, 1
+ mov ecx, error_msg
+ mov edx, 53 ; Length of the error message
+ int 0x80 ; Print error message
+ jmp prmopt_num ; Jump back to the second prompt after error
\ No newline at end of file