Update README.md

fix build test

.gitea/workflows/build_test.yaml

@@ -0,0 +1,17 @@
+name: build_test
+on: [push]
+
+jobs:
+  build:
+    runs-on: arch
+    steps:
+      - name: fix package cache
+        run: rm -fr /var/cache/pacman/pkg/* && pacman -Syy archlinux-keyring --needed --noconfirm && pacman-key --init && pacman-key --populate archlinux
+      - name: get dependencies
+        run: pacman -Sy nodejs make nasm binutils --needed --noconfirm
+
+      - name: Checkout code
+        uses: actions/checkout@v4
+      
+      - name: Build
+        run: make -j$(nproc)

.gitignore

@@ -1 +1,3 @@
+.asm-lsp.toml
 build
+src/*.o

Makefile

@@ -1,31 +1,49 @@
 NASM = nasm
 LD = ld
 
-NASM_FLAGS := -felf64
+NASM_FLAGS := -felf64 -Isrc -Ox -Ov -w+all -w-reloc-abs-dword -w-reloc-rel-dword
 LD_FLAGS := --strip-all 
 
+DEBUG_LD_FLAGS := -g
+DEBUG_NASM_FLAGS := -g -F dwarf
+
+# check for avx2 support
+ifeq ($(shell grep -o 'avx2[^ ]*' /proc/cpuinfo | head -n 1),avx512)
+    NASM_FLAGS += -DAVX2
+endif
+
+# check for avx512 support
+ifeq ($(shell grep -o 'avx512[^ ]*' /proc/cpuinfo | head -n 1),avx512)
+    NASM_FLAGS += -DAVX512
+endif
+
+
 SRC_PATH := src
 OBJ_PATH := build/obj
 BIN_PATH := build/bin
 
+BIN_NAME := asm-game-of-life
+
 SRC_FILES := $(wildcard $(SRC_PATH)/*.asm)
 OBJ_FILES := $(patsubst $(SRC_PATH)/%.asm,$(OBJ_PATH)/%.o,$(SRC_FILES))
 
-all: make-build-dir $(BIN_PATH)/asm-game-of-life
+all: $(BIN_PATH)/$(BIN_NAME) | make-build-dir
+
+debug: NASM_FLAGS += $(DEBUG_NASM_FLAGS)
+debug: LD_FLAGS = $(DEBUG_LD_FLAGS)
+debug: $(BIN_PATH)/$(BIN_NAME) | make-build-dir
 
 make-build-dir:
 	mkdir -p $(OBJ_PATH)
 	mkdir -p $(BIN_PATH)
 
 
-$(BIN_PATH)/asm-game-of-life: $(OBJ_FILES)
+$(BIN_PATH)/$(BIN_NAME): $(OBJ_FILES) | make-build-dir
 	$(LD) $(LD_FLAGS) $^ -o $@
 
 
-$(OBJ_PATH)/%.o: $(SRC_PATH)/%.asm
+$(OBJ_PATH)/%.o: $(SRC_PATH)/%.asm | make-build-dir
 	$(NASM) $(NASM_FLAGS) $< -o $@
 
 clean:
 	rm -fr build
-
-

README.md

@@ -0,0 +1,19 @@
+<img src="https://git.pupes.org/repo-avatars/e4ede9d30f070c9e191eace5a88dcaa40434b9cadf60204122fab5a83aec9a9f" alt="logo of ParaDocs" width="196"></img>
+[![build test](https://git.pupes.org/PoliEcho/asm-game-of-life/actions/workflows/build_test.yaml/badge.svg)](https://git.pupes.org/PoliEcho/asm-game-of-life/actions?workflow=build_test.yaml)
+# AMD64 Assembly Game of life
+
+
+## Dependencies  
+> AMD64 Linux Kernel  
+### Build only  
+> nasm  
+> ld  
+> make  
+
+## Download
+#### TODO: add releases link
+
+## Build  
+```shell
+make
+```

src/alloc.asm

@@ -0,0 +1,25 @@
+%include "symbols.asm"
+
+section .bss
+	brk_pointer: RESQ 1
+section .text 
+
+global init_alloc
+init_alloc:; initialize allocator, optionaly return brk pointer in rax
+	mov rax, SYS_BRK
+	xor rdi, rdi
+	syscall
+	mov [brk_pointer], rax
+	ret
+
+global alloc
+alloc:; Takes lenght of data in rdi and returns pointer in rax
+	mov rax, SYS_BRK
+	mov qword rcx, [brk_pointer]
+	push rcx
+	add rdi, rcx; calculate new BRK address
+	syscall
+	mov [brk_pointer], rax
+	pop rax
+	ret
+

src/drawing.asm

@@ -0,0 +1,256 @@
+%include "symbols.asm"
+
+
+
+section .bss
+	extern gameboard_ptr
+
+	extern term_rows
+	extern term_cols
+
+	extern gameboard_size
+	
+	global simulation_running
+	simulation_running: RESB 1
+
+	next_frame_ptr: RESQ 1
+section .data 
+	extern simulation_speed
+
+section .rodata 
+	clear: 		db ESC_CHAR, "[2J", 0
+	global reset
+	reset:		db ESC_CHAR, "[0m", 0
+	resetLen:	equ $-reset-1
+	global resetLen
+
+	home_cursor:	db ESC_CHAR, "[H", 0
+
+	statusbar:	db ESC_CHAR, "[32;100m", "Use arrow keys to move cursor, enter to invert cell j/k to change simulation speed, p to       simulation. Frame Delay multiplier:", 0
+	statusbarLen:	equ $-statusbar
+	START_STOP_pos: equ statusbarLen-42
+	
+	
+	start_str:	db "START", 0
+	stop_str:	db "STOP ", 0
+
+	alive_switch_statement:
+		dq step_simulation.die; 0
+		dq step_simulation.die; 1
+		dq step_simulation.live; 2
+		dq step_simulation.live; 3
+		dq step_simulation.die; 4
+		dq step_simulation.die; 5
+		dq step_simulation.die; 6
+		dq step_simulation.die; 7
+		dq step_simulation.die; 8
+
+
+section .text 
+extern print_str
+extern string_copy
+extern memory_set
+extern memory_copy
+extern alloc
+extern unsigned_int_to_ascii
+
+global init_gameboard
+init_gameboard:
+	xor rax, rax
+	xor rcx, rcx
+
+	
+	mov rdi, [gameboard_ptr]
+	push rdi
+	mov rsi, 0x20; set rsi to SPACE character
+	mov rdx, [gameboard_size]
+	push rdx
+	add rdx, ESC_chars_compensation_Len; I dont know how this work but it works so i wont touch it
+	call memory_set
+	
+
+	pop rdx
+	pop rdi
+	add rdi, rdx; get pointer to last char on screen
+	push rdx
+	push rdi
+	add rdi, ESC_chars_compensation_Len
+	lea rsi, [reset]
+
+	call string_copy
+	pop rdi
+	xor rax, rax
+	mov ax, [term_cols]
+	sub rdi, rax
+	lea rsi, [statusbar]
+	call string_copy
+
+	pop rdi 
+	call alloc
+	mov [next_frame_ptr], rax
+	ret
+	
+global print_game_ui
+print_game_ui:
+	lea rdi, [home_cursor]
+	call print_str
+
+	mov qword rdi, [gameboard_ptr]
+	push rdi
+	add rdi, [gameboard_size]
+	sub di, [term_cols]
+	push rdi
+	add rdi, START_STOP_pos
+	
+	mov cl, [simulation_running]
+	test cl,cl; test if simulation is running 
+	jz .simulation_not_running
+	lea rsi, [stop_str]
+	jmp .end_simulation_running_check
+	.simulation_not_running:
+	lea rsi, [start_str]
+	.end_simulation_running_check:
+	call string_copy
+
+	pop rdi
+	add rdi, statusbarLen 
+
+	movss xmm0, [simulation_speed]
+
+	cvttss2si rsi, xmm0
+	push rsi
+	push rdi
+	call unsigned_int_to_ascii
+	pop rdi 
+	add rdi, rax
+
+	mov byte [rdi], '.'
+	inc rdi
+
+	pop rax
+	cvtsi2ss xmm1, rax
+	
+	subss xmm0, xmm1; get only value after decimal point 
+	mov rax, 10 
+	cvtsi2ss xmm1, rax
+
+	mulss xmm0, xmm1
+	cvttss2si rsi, xmm0; get first decimal point as int 
+
+	call unsigned_int_to_ascii; rdi already set
+	
+
+	pop rdi
+	call print_str
+	
+	
+	ret
+
+%macro check_if_hashtag 2
+	cmp %1, r8
+	jl .no_count_%2
+	cmp %1, r9
+	ja .no_count_%2
+	mov r11b, [%1]
+	cmp r11b, '#' 
+	jne .no_count_%2
+	inc dl
+	.no_count_%2:
+%endmacro
+
+global step_simulation:
+step_simulation:
+	mov rdi, [next_frame_ptr]; destination
+	mov rsi, [gameboard_ptr]; source 
+	mov rcx, [gameboard_size]; number of iterations
+	
+	mov r8, rsi; store lowest address posible so we are not checking out of bounds
+	mov r9, rsi
+	add r9, rcx; store higest address posible so we are not checking out of bounds
+
+	xor r10, r10
+	mov r10w, [term_cols]
+	;mov r11, [term_rows] this register has been confiscated since i cannot use ah because of error: cannot use high byte register in rex instruction
+
+	sub rcx, r10; remove status bar
+
+	xor rax, rax; this shouldn't be needed but just to be sure
+	xor r11, r11
+	xor rdx, rdx; we will use dl as # counter 
+	.for_every_column_on_gameboard:
+	xor dl, dl
+	mov al, [rsi]; NOTE to self if i need extra register i can shift this to ah and free up r11
+	
+	
+	inc rsi
+	check_if_hashtag rsi, 1; check column to the to the right
+	dec rsi
+
+	dec rsi
+	check_if_hashtag rsi, 2; check the one to the left
+	inc rsi
+
+	add rsi, r10
+	
+	check_if_hashtag rsi, 3; check the one to the down
+
+	inc rsi
+	check_if_hashtag rsi, 4; check the one to the down-right
+	dec rsi
+
+	dec rsi
+	check_if_hashtag rsi, 5; check the one to the down-left
+	inc rsi
+
+	sub rsi, r10
+
+
+	sub rsi, r10	
+	check_if_hashtag rsi, 6; check the one to the up
+
+	inc rsi
+	check_if_hashtag rsi, 7; check the one to the up-right
+	dec rsi
+
+	dec rsi
+	check_if_hashtag rsi, 8; check the one to the up-left
+	inc rsi
+
+	add rsi, r10
+
+	cmp al, '#'
+	jne .dead_cell
+
+	jmp [alive_switch_statement+(rdx*8)]
+
+	.die:
+	mov byte [rdi], 0x20; SPACE
+	jmp .end_check
+
+	.live:
+	mov byte [rdi], '#'
+	jmp .end_check
+
+	.dead_cell:
+	cmp dl, 3 
+	jne .fill_space_there
+	mov byte [rdi], '#'
+	jmp .end_check
+	.fill_space_there:
+	mov byte [rdi], 0x20; SPACE
+
+	.end_check:
+	dec rcx
+	inc rdi
+	inc rsi
+	test rcx, rcx
+	jnz .for_every_column_on_gameboard
+
+	mov rsi, [next_frame_ptr]; source
+	mov rdi, [gameboard_ptr]; destination 
+	mov rdx, [gameboard_size]; number of iterations
+	sub rdx, r10; remove statusbar
+
+	call memory_copy
+
+	ret

src/input.asm

@@ -0,0 +1,382 @@
+%include "symbols.asm"
+
+section .bss
+	alignb 16
+	termios: RESZ 1; 60 bytes is needed i use 64 for alligment and it is easier to work with
+
+	extern multipurpuse_buf
+
+	extern term_rows
+	extern term_cols
+
+	extern gameboard_ptr
+
+	extern simulation_running
+section .data 
+	cursor_rows: dw 1
+	cursor_cols: dw 1
+
+
+	global simulation_speed
+	simulation_speed dd 1.0
+section .rodata
+	extern reset
+
+	cursor_up: db ESC_CHAR, "[1A", 0
+	cursor_down: db ESC_CHAR, "[1B", 0
+	cursor_right: db ESC_CHAR, "[1C", 0
+	cursor_left: db ESC_CHAR, "[1D", 0
+
+	cursor_color: db ESC_CHAR, "[45m", 0
+
+	speed_multiplier dd 50.0
+
+	arrow_switch_statement:
+		dq handle_user_input.arrow_up
+		dq handle_user_input.arrow_down
+		dq handle_user_input.arrow_right
+		dq handle_user_input.arrow_left
+
+section .text
+
+extern print_str
+extern step_simulation
+extern unsigned_int_to_ascii
+extern print_game_ui
+extern string_copy
+
+global handle_user_input
+handle_user_input:; main loop of the program
+	push r12
+	push r13
+	
+
+	lea r12, [multipurpuse_buf]
+
+	.main_loop:
+	xor r13, r13
+
+	; put the cursor where it should be 
+	call print_cursor
+	
+	
+
+	xor rax, rax
+	mov qword [r12], rax; zeroout the buffer
+
+	mov rax, SYS_POLL
+	mov dword [r12], STDIN; create pollfd struct
+	mov word [r12+4], POLLIN
+	mov rdi, r12
+	mov rsi, 1; only one file descriptor is provided
+	movss xmm0, [speed_multiplier]
+	movss xmm1, [simulation_speed]
+	mulss xmm0, xmm1; callculate sleep lenght
+	cvttss2si rdx, xmm0; truncate and copy to rdx 
+	syscall
+
+	test rax, rax; SYS_POLL returns 0 when no change happens within timeout
+	jz .no_input
+
+	xor rax, rax
+	mov qword [r12], rax; zeroout the buffer
+	
+	mov rax, SYS_READ
+	mov rdi, STDIN
+	lea rsi, [r12]
+	mov rdx, 8; size of multipurpuse buffer
+	syscall; read user input
+
+	cmp rax, EAGAIN
+	je .no_input
+
+	mov rax, [r12]
+	
+	cmp eax, 0x00415B1B; check if input is more than left arrow
+	jl .handle_single_byte_chars
+
+	bswap eax
+
+	sub eax, 0x1B5B4100
+	shr eax, 8
+	cmp al, 3
+	ja .no_input
+
+	mov r9w, [term_rows]
+	dec r9w
+	mov r10w, [term_cols]
+
+	jmp [arrow_switch_statement+(rax*8)]; lets hope this works
+
+	.arrow_up:
+	dec word [cursor_rows]
+	jnz .move_cursor_up
+	inc word [cursor_rows]
+	jmp .end_input_handling
+	.move_cursor_up:
+	lea rdi, [cursor_up]
+	call print_str
+	jmp .end_input_handling
+
+	.arrow_down:
+	mov r8w, [cursor_rows]
+	inc r8w
+	cmp word r8w, r9w
+	ja .end_input_handling
+	mov word [cursor_rows], r8w
+	lea rdi, [cursor_down]
+	call print_str
+	jmp .end_input_handling
+
+	.arrow_right:
+ 	mov r8w, [cursor_cols]
+	inc r8w
+	cmp word r8w, r10w
+	ja .end_input_handling
+	mov word [cursor_cols], r8w
+	lea rdi, [cursor_right]
+	call print_str
+	jmp .end_input_handling
+
+	.arrow_left:
+	dec word [cursor_cols]
+	jnz .move_cursor_left 
+	inc word [cursor_cols]
+	jmp .end_input_handling
+	.move_cursor_left:
+	lea rdi, [cursor_left]
+	call print_str
+	jmp .end_input_handling
+
+	.handle_single_byte_chars:
+
+
+	cmp al, 0xa; NEWLINE (enter key)
+	jne .check_p
+
+	xor rax, rax; zeroout rax
+	mov ax, [cursor_rows]
+	dec ax
+	mul word [term_cols]
+	mov cx, [cursor_cols]
+	dec cx
+	add ax, cx
+	
+	mov rdi, [gameboard_ptr]
+	add rdi, rax
+	mov cl, [rdi]
+	cmp cl, '#'
+	je .hashtag_present
+
+	mov byte [rdi], '#'
+	jmp .end_input_handling
+
+	.hashtag_present:
+
+	mov byte [rdi], ' '
+	jmp .end_input_handling
+
+	.check_p:
+	cmp al, 'p'
+	jne .check_j
+
+	xor byte [simulation_running], 0x01; switch simulation on or off
+
+	jmp .end_input_handling	
+
+	.check_j:
+	cmp al, 'j'
+	jne .check_k
+
+	movss xmm0, [simulation_speed]
+	mov eax, 0x3DCCCCCD; 0.1f
+	vmovd xmm1, eax
+
+	addss xmm0, xmm1
+	; wont check for overflows since the user would need be crazy to reach that number
+	movss [simulation_speed], xmm0
+
+	jmp .end_input_handling	
+
+	.check_k:
+	cmp al, 'k'
+	jne .check_q
+	
+	movss xmm0, [simulation_speed]
+	mov eax, 0x3DCCCCCD; 0.1f
+	vmovd xmm1, eax
+
+	subss xmm0, xmm1
+
+	ucomiss xmm0, xmm1; check if number is smaller than 0.1
+	jb .end_input_handling
+	movss [simulation_speed], xmm0
+
+	jmp .end_input_handling
+
+	.check_q:
+	cmp al, 'q'
+	jne .end_input_handling	
+	jmp .function_exit
+	ret; exit if q pressed
+
+	.end_input_handling:
+	mov r13b, 1
+	.no_input:
+
+	mov al, [simulation_running]
+	test al, al
+	jz .dont_step
+	call step_simulation
+	mov r13b, 1
+	.dont_step:
+	
+	test r13b, r13b
+	jz .main_loop
+	call print_game_ui
+	jmp .main_loop
+
+.function_exit:
+	pop r13
+	pop r12
+	ret
+
+	
+global disable_canonical_mode_and_echo
+disable_canonical_mode_and_echo:
+	
+	mov rax, SYS_IOCTL
+	mov rdi, STDIN
+	mov rsi, TCGETS
+	lea rdx, [termios]
+	syscall 
+
+	; save original termios struct
+	%ifdef AVX2
+		%ifdef AVX512
+			vmovdqa64 zmm0, [termios]
+		%else
+			vmovdqa ymm0, [termios]
+			vmovdqa ymm1, [termios+32]						
+		%endif 
+	%else
+		vmovdqa xmm0, [termios]
+		vmovdqa xmm1, [termios+16]
+		vmovdqa xmm2, [termios+32]
+		vmovdqa xmm3, [termios+64]
+	%endif
+
+	
+	mov eax, [termios+12]; get c_lflag
+	and eax, NOT_ECHO; disable ECHO
+	and eax, NOT_ICANON; disable ICANON
+	mov [termios+12], eax
+
+	mov rax, SYS_IOCTL
+	mov rdi, STDIN
+	mov rsi, TCSETS
+	lea rdx, [termios]
+	syscall 
+
+
+	; load original termios struct
+	%ifdef AVX2
+		%ifdef AVX512
+			vmovdqa64 [termios], zmm0
+		%else
+			vmovdqa [termios], ymm0
+			vmovdqa [termios+32], ymm1						
+		%endif 
+	%else
+		vmovdqa [termios], xmm0
+		vmovdqa [termios+16], xmm1
+		vmovdqa [termios+32], xmm2
+		vmovdqa [termios+64], xmm3
+	%endif
+
+
+	ret
+
+global reset_terminal
+reset_terminal:
+	mov rax, SYS_IOCTL
+	mov rdi, STDIN
+	mov rsi, TCSETS
+	lea rdx, [termios]
+	syscall 
+	ret
+	
+print_cursor:
+	push r12
+	push r13
+	lea r12, [multipurpuse_buf]
+	mov rdi, r12
+	mov word [rdi], 0x5B1B; will store ESC_CHAR, '[' they have to be in reverse order here due to little endian
+	add rdi, 2
+	push rdi
+	xor rsi, rsi
+	mov si, [cursor_rows]
+	call unsigned_int_to_ascii
+	pop rdi
+	add rdi, rax; add lenght of string to pointer 
+	mov byte [rdi], ';'
+	inc rdi
+	push rdi
+	mov si, [cursor_cols]
+	call unsigned_int_to_ascii
+	pop rdi
+	add rdi, rax
+	mov byte [rdi], 'H'
+	inc rdi
+	mov byte [rdi], 0; null terminate
+
+	mov rdi, r12
+	call print_str
+
+	; write there real cursor
+	xor r13, r13
+	mov rdi, r12
+	lea rsi, [cursor_color]
+	call string_copy
+	mov rdi, r12
+	add r13, rax
+	add rdi, r13
+
+	xor rax, rax
+
+	mov ax, [cursor_rows]
+	dec ax
+	mul word [term_cols]; get index of character
+	add ax, [cursor_cols]
+	dec ax
+
+	xor rsi, rsi
+
+	add rax, [gameboard_ptr]
+	mov sil, [rax]; now we got the character in si
+	mov byte [rdi], sil
+	inc rdi
+	inc r13
+
+	lea rsi, [reset]
+	call string_copy
+	mov rdi, r12
+	add r13, rax
+	add rdi, r13
+
+	lea rsi, [cursor_left]
+	call string_copy
+	mov rdi, r12
+	add r13, rax
+	add rdi, r13
+	
+	inc rdi
+	mov byte [rdi], 0; null terminate
+
+	mov rdi, r12
+	call print_str
+	
+	pop r13
+	pop r12
+	ret
+	

src/main.asm

@@ -1,115 +1,156 @@
-SYS_WRITE   equ 1
+%include "symbols.asm"
-SYS_BRK     equ 12
-SYS_EXIT    equ 60
 
-STDOUT      equ 1
 
-ESC_CHAR    equ 27
-ASCII_ZERO  equ 48
 
 section .bss
-  heap_ptr resp 1
+	global multipurpuse_buf
+	multipurpuse_buf: RESB 16
 	
-section .data
+	global term_rows
-  hello: db ESC_CHAR, "[10;15Hhello suckers! :)", 10, 0
+	term_rows: RESW 1
-  test:  db ESC_CHAR, "[20;25Hmore txt here", 10, 0
+	global term_cols
-  clear: db ESC_CHAR, "[2J", 0
+	term_cols: RESW 1
+	
+	global gameboard_ptr
+	gameboard_ptr: RESQ 1
+
+	global gameboard_size
+	gameboard_size: RESQ 1
+
+	extern cursor_rows
+	extern cursor_cols
+	
+	global running_in_tty
+	running_in_tty: RESB 1
+	
+section .rodata
+	extern resetLen
+
+	hide_cursor: db ESC_CHAR, "[?25l", 0
+	show_cursor: db ESC_CHAR, "[?25h", 0
+
+	help_text: db "asm-game-of-life [args]",0xA,"-h	display this help menu",0xA,"Controls:",0xA,"use arrow keys to move around",0xA,"ENTER to invert cell",0xA,"p     to START/STOP simulation",0xA,"k     to increase simulation speed",0xA,"j     to decrese simulation speed",0xA, 0
 
 section .text
+extern print_str
+extern unsigned_int_to_ascii
+extern init_alloc
+extern alloc
+
+extern init_gameboard
+extern print_game_ui
+
+extern handle_user_input
+
+extern disable_canonical_mode_and_echo
+extern reset_terminal
+
 global _start
-  
-  unsigned_int_to_acii: ; takes value stored in rdi
-    push rdx
-    push r12
-    push r13
-    
-    mov r12, rdi
-
-    mov rax,SYS_BRK
-    mov rdi,0
-    syscall
-    mov [heap_ptr], rax
-    
-    mov r13, 0
-    mov rax, r12
-    mov rcx, 10
-    .count_loop:
-      inc r13
-      cmp rax, 10
-      jl .loop_exit
-
-      xor rdx, rdx
-      div rcx
-      push rdx
-      jmp .count_loop
-
-    .loop_count_exit:
-    push rax
-      
-    mov rdi, [heap_ptr]
-    add rdi, r13
-    inc rdi
-    mov rax, SYS_BRK
-    syscall
-    
-    mov rdi [heap_ptr]
-    mov rcx 0
-    .store_loop: ; basicly for loop
-      cmp rcx, rdi
-      jnl .loop_store_exit
-
-      pop rax
-      add rax, ASCII_ZERO
-      
-      mov rdx rdi
-      add rdx rcx
-      mov byte rdx, rax
-      
-      inc rcx
-      jmp .store_loop
-
-    .loop_store_exit
-    add rdi rcx
-    mov byte rdi, 0
-      
-
-
-
-  print_str: ; takes pointer to string in rdi and retuns in rax
-    push rsi
-    push rdx
-    mov rsi, rdi
-
-    mov rdx, 0
-    .count_loop:
-      cmp byte [rsi+rdx], 0
-      je .print
-      inc rdx
-      jmp .count_loop
-
-    .print:
-      mov rax,SYS_WRITE
-      mov rdi,STDOUT
-      syscall
-      
-      pop rdx
-      pop rsi
-      ret
-
-  print_at_pos:
-    
-
-    
 _start:
-    mov rdi,clear
+	; get terminal dimensions
+	mov rax, SYS_IOCTL
+	mov rdi, STDOUT
+	mov rsi, TIOCGWINSZ
+	lea rdx, [multipurpuse_buf]
+	syscall
+	
+	mov word ax, [multipurpuse_buf]; rows are stored at offset 0
+	mov [term_rows], ax
+
+	mov word ax, [multipurpuse_buf+2]; cols are stored at offset 2
+	mov [term_cols], ax
+
+	; handle args
+	pop rcx; get argc (number of arguments)
+	pop rax; get rid of program name arugument
+	cmp rcx, 1 
+	jle .no_arguments_provided
+	dec rcx
+	.handle_arg:
+	pop rax
+	mov word di, [rax]
+
+	cmp di, 0x682D; check if -h was passed
+	jne .next_arg
+	lea rdi, [help_text]
+	call print_str
+	jmp .exit_program
+
+	.next_arg:
+	dec rcx
+	test rcx, rcx
+	jnz .handle_arg
+	
+	.no_arguments_provided:
+
+	
+	pop rax; get rid of null termination of argv 
+	; handle enviroment vars
+
+	.handle_env:
+	pop rax
+	test rax, rax; test if we reached end of envs
+	jz .no_envs
+
+	mov dword edi, [rax]
+	cmp edi, 0x4D524554; check for "TERM" inverted becose endiannes
+	jne .handle_env
+	mov qword rdi, [rax+5]; remove the TERM= part this should never segfault since there sould allwas be other data behind enviroment vars and i dont mind garbage 
+	mov rsi, 0xffffffffff
+	and rdi, rsi
+	mov rsi, 0x78756e696c
+	cmp rdi, rsi; check for "linux"
+	jne .no_envs
+	mov byte [running_in_tty], 1
+
+	.no_envs:
+
+
+	call init_alloc
+
+	xor rax, rax
+	xor rcx, rcx
+
+	mov ax, [term_rows]
+	mov cx, [term_cols]
+	mul rcx
+	mov rdi, rax
+	mov qword [gameboard_size], rax
+	inc rdi; addition byte for NULL BYTE
+	lea rax, [resetLen]
+	add rdi, rax
+	add rdi, ESC_chars_compensation_Len
+	call alloc
+	mov [gameboard_ptr], rax; stores pointer to gameboard array
+	call init_gameboard
+
+	; make stdin non-blocking in case polling somehow fails, or am i stupid
+	mov rax, SYS_FCNTL
+	mov rdi, STDIN
+	mov rsi, F_SETFL
+	mov rdx, O_NONBLOCK
+	syscall
+
+	lea rdi, [hide_cursor]
 	call print_str
 
-    mov rdi,hello
+	call print_game_ui	
-    call print_str
+
-
+	call disable_canonical_mode_and_echo
-    mov rdi,test
+
+	call print_game_ui
+
+	call handle_user_input
+
+	call reset_terminal
+
+	lea rdi, [show_cursor]
 	call print_str
 
+	.exit_program:
 	mov rax, SYS_EXIT
     	mov rdi, 0             ; return code
     	syscall
+
+	
+

src/str.asm

@@ -0,0 +1,169 @@
+%include "symbols.asm"
+
+section .text
+
+global print_str
+print_str: ; takes pointer to string in rdi and retuns in rax
+    push rsi
+    push rdx
+    mov rsi, rdi
+    xor rdx, rdx
+
+.count_loop:
+    cmp byte [rsi+rdx], 0
+    je .print
+    inc rdx
+    jmp .count_loop
+
+.print:
+    mov rax, SYS_WRITE
+    mov rdi, STDOUT
+    syscall
+    pop rdx
+    pop rsi
+    ret
+
+global unsigned_int_to_ascii
+unsigned_int_to_ascii: ; takes pointer to array in rdi and value stored in rsi DOES NOT BOUNDS CHECK return len of string in rax
+    xor r11, r11
+    mov rcx, 10
+    mov rax, rsi
+
+.count_loop:
+    inc r11
+    cmp rax, 10
+    jl .loop_count_exit
+    xor rdx, rdx
+    div rcx
+    push rdx
+    jmp .count_loop
+
+.loop_count_exit:
+    push rax
+
+    xor rcx, rcx
+
+.store_loop: ; basicly for loop
+    cmp rcx, r11
+    jnl .loop_store_exit
+
+    pop rax
+    add rax, ASCII_ZERO
+    mov byte [rdi + rcx], al
+    inc rcx
+
+    jmp .store_loop
+
+.loop_store_exit:
+
+    mov rax, r11
+
+    ret
+
+global string_copy
+string_copy:; takes pointer to destination in rdi and pointer to source in rsi and return lenght in rax
+	
+	xor rax, rax
+	xor rcx, rcx
+	.copy_next_byte:
+	mov byte cl, [rsi+rax]
+	test cl, cl
+	jz .exit
+	mov [rdi+rax], cl
+	inc rax
+	jmp .copy_next_byte
+
+	.exit:
+	ret
+
+global memory_set:
+memory_set:; takes  destination in rdi, byte in sil and lenght in rdx
+	; first check if value is 16 byte alligned
+
+	mov r9, rdi; move destination to r9
+
+	mov r11, 0x0101010101010101; to extend across whoule register
+	movzx rsi, sil
+	imul r11, rsi; to extend across whoule register
+
+	cmp rdx, 16
+	jnl .write_16_or_more_bytes 
+	mov rcx, rdx 
+	jmp .write_less_than_16_bytes
+	.write_16_or_more_bytes:
+	mov rax, rdi; move destination to rax
+	and rax, 0xF; offset is stored in rax
+
+	
+	test al, al; check if resault is 0
+	jz .addr_is_16_Byte_alligned
+	
+
+	mov cl, 16
+	sub cl, al; now offset to first higher 16 byte alligned address is stored in r8
+	movzx rcx, cl; remove ani posible garbage
+	
+
+	.write_less_than_16_bytes:
+	mov rax, r11
+	sub rdx, rcx; we will write these bytes now
+	
+	rep stosb
+
+	.addr_is_16_Byte_alligned:
+	mov r10, rdx
+	shr r10, 4; set it to how many 128bit(16Byte) chunk we need 
+	test r10, r10; check if we need to write aditional 16 bytes at all
+	jz .function_exit
+		
+	%ifdef AVX512
+		vpbroadcastq xmm8, r11
+	%else
+		movq xmm8, r11
+		shufpd xmm8, xmm8, 0x00
+	%endif
+
+	.move_16_bytes:
+	movdqa [rdi], xmm8
+	add rdi, 16
+	sub rdx, 16
+
+	cmp rdx, 16; test if rdx is less than 16
+	jge .move_16_bytes
+
+	.function_exit:
+
+	test rdx, rdx; test if rdx is 0
+	jz .true_function_exit
+	mov cl, dl
+	jmp .write_less_than_16_bytes
+
+	.true_function_exit:
+	mov rax, r9; return pointer to memory area same as memset in libc
+	ret	
+
+
+
+
+
+
+
+global memory_copy:
+memory_copy:; takes  destination in rdi, source in rsi and lenght in rdx
+	; first check if value is 16 byte alligned
+
+	mov r9, rdi
+
+	mov rcx, rdx
+	shr rcx, 3; calculate how many 8 byte chunks we need
+	and rdx, 0x7; calculate the reminder
+
+	rep movsq; move as many 8 byte chunks as posible
+
+	mov rcx, rdx
+
+	rep movsb; move the rest
+
+
+	mov rax, r9; return pointer to memory area same as memcpy in libc
+	ret	

src/symbols.asm

@@ -0,0 +1,28 @@
+SYS_EXIT 	equ 60
+SYS_IOCTL	equ 16
+SYS_READ 	equ 0
+SYS_WRITE 	equ 1
+SYS_BRK		equ 12
+SYS_FCNTL	equ 72
+SYS_POLL	equ 7
+SYS_NANOSLEEP	equ 35
+
+STDIN		equ 0
+STDOUT		equ 1
+
+TIOCGWINSZ	equ 0x5413
+TCGETS		equ 0x5401
+TCSETS		equ 0x5402
+F_SETFL		equ 4 
+O_NONBLOCK	equ 2048
+POLLIN		equ 0x0100; compensate for litle endian
+
+NOT_ECHO	equ -9
+NOT_ICANON	equ -3
+
+EAGAIN		equ -11
+
+ASCII_ZERO 	equ 48
+ESC_CHAR 	equ 27
+
+ESC_chars_compensation_Len equ 9; i have to compensate for escape sequences that dont get printed why 11 exactly, I dont know