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No commits in common. "51ffd98872345add465ca205ced6d2a00a24af66" and "aa86683b3538c550c5c4be167c0eee4c77c0b7ec" have entirely different histories.
51ffd98872
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aa86683b35
2
.gitignore
vendored
2
.gitignore
vendored
@ -1,3 +1 @@
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.asm-lsp.toml
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.asm-lsp.toml
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build
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src/*.o
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18
Makefile
18
Makefile
@ -1,38 +1,28 @@
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NASM = nasm
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NASM = nasm
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LD = ld
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LD = ld
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NASM_FLAGS := -felf64 -Isrc
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NASM_FLAGS := -felf64
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LD_FLAGS := --strip-all
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LD_FLAGS := --strip-all
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DEBUG_LD_FLAGS := -g
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DEBUG_NASM_FLAGS := -g -F dwarf
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SRC_PATH := src
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SRC_PATH := src
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OBJ_PATH := build/obj
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OBJ_PATH := build/obj
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BIN_PATH := build/bin
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BIN_PATH := build/bin
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BIN_NAME := asm-game-of-life
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SRC_FILES := $(wildcard $(SRC_PATH)/*.asm)
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SRC_FILES := $(wildcard $(SRC_PATH)/*.asm)
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OBJ_FILES := $(patsubst $(SRC_PATH)/%.asm,$(OBJ_PATH)/%.o,$(SRC_FILES))
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OBJ_FILES := $(patsubst $(SRC_PATH)/%.asm,$(OBJ_PATH)/%.o,$(SRC_FILES))
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all: $(BIN_PATH)/$(BIN_NAME) | make-build-dir
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all: make-build-dir $(BIN_PATH)/asm-game-of-life
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debug: NASM_FLAGS += $(DEBUG_NASM_FLAGS)
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debug: LD_FLAGS = $(DEBUG_LD_FLAGS)
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debug: $(BIN_PATH)/$(BIN_NAME) | make-build-dir
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make-build-dir:
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make-build-dir:
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mkdir -p $(OBJ_PATH)
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mkdir -p $(OBJ_PATH)
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mkdir -p $(BIN_PATH)
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mkdir -p $(BIN_PATH)
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$(BIN_PATH)/$(BIN_NAME): $(OBJ_FILES) | make-build-dir
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$(BIN_PATH)/asm-game-of-life: $(OBJ_FILES)
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$(LD) $(LD_FLAGS) $^ -o $@
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$(LD) $(LD_FLAGS) $^ -o $@
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$(OBJ_PATH)/%.o: $(SRC_PATH)/%.asm | make-build-dir
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$(OBJ_PATH)/%.o: $(SRC_PATH)/%.asm
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$(NASM) $(NASM_FLAGS) $< -o $@
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$(NASM) $(NASM_FLAGS) $< -o $@
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clean:
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clean:
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@ -1,23 +0,0 @@
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%include "symbols.asm"
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section .bss
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brk_pointer: RESQ 1
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section .text
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global init_alloc
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init_alloc:; initialize allocator, optionaly return brk pointer in rax
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mov rax, SYS_BRK
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mov rdi, 0
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syscall
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mov [brk_pointer], rax
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ret
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global alloc
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alloc:; Takes lenght of data in rdi and returns pointer in rax
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mov rax, SYS_BRK
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mov rcx, [brk_pointer]
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push rcx
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syscall; size already in rdi
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mov [brk_pointer], rax
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pop rax
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ret
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53
src/main.asm
53
src/main.asm
@ -1,56 +1,3 @@
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%include "symbols.asm"
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section .bss
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multipurpuse_buf: RESB 8
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term_rows: RESW 1
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term_cols: RESW 1
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section .data
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section .text
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section .text
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extern print_str
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extern unsigned_int_to_ascii
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extern init_alloc
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extern alloc
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global _start
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global _start
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_start:
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; get terminal dimensions
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mov rax, SYS_IOCTL
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mov rdi, STDOUT
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mov rsi, TIOCGWINSZ
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lea rdx, [multipurpuse_buf]
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syscall
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mov word ax, [multipurpuse_buf]; rows are stored at offset 0
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mov [term_rows], ax
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mov word ax, [multipurpuse_buf+2]; cols are stored at offset 2
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mov [term_cols], ax
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; handle args
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pop rcx; get argc (number of arguments)
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cmp rcx, 1
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jle .no_arguments_provided
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; TODO hanndle arguments
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.no_arguments_provided:
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call init_alloc
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mov ax, [term_rows]
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dec ax; one less than terminal size for statusbar
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mov cx, [term_cols]
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mul rcx
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mov rdi, rax
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call alloc
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mov r15, rax; stores pointer to gameboard array
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mov rax, SYS_EXIT
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mov rdi, 0 ; return code
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syscall
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42
src/str.asm
42
src/str.asm
@ -1,8 +1,7 @@
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%include "symbols.asm"
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SYS_WRITE equ 1
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STDOUT equ 1
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section .text
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global print_str
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print_str: ; takes pointer to string in rdi and retuns in rax
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print_str: ; takes pointer to string in rdi and retuns in rax
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push rsi
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push rsi
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push rdx
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push rdx
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@ -23,40 +22,3 @@ print_str: ; takes pointer to string in rdi and retuns in rax
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pop rsi
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pop rsi
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ret
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ret
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global unsigned_int_to_ascii
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unsigned_int_to_ascii: ; takes pointer to array in rdi and value stored in rsi DOES NOT BOUNDS CHECK
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mov r11, 0
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mov rcx, 10
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mov rax, rsi
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.count_loop:
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inc r11
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cmp rax, 10
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jl .loop_count_exit
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xor rdx, rdx
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div rcx
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push rdx
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jmp .count_loop
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.loop_count_exit:
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push rax
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mov rcx, 0
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.store_loop: ; basicly for loop
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cmp rcx, r11
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jnl .loop_store_exit
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pop rax
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add rax, ASCII_ZERO
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mov byte [rdi + rcx], al
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inc rcx
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jmp .store_loop
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.loop_store_exit:
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mov rax, r11
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ret
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@ -1,9 +0,0 @@
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SYS_EXIT equ 60
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SYS_IOCTL equ 16
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SYS_WRITE equ 1
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SYS_BRK equ 12
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STDOUT equ 1
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TIOCGWINSZ equ 0x5413
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ASCII_ZERO equ 48
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