inital-commit

.gitignore

@@ -0,0 +1 @@
+.asm-lsp.toml

Makefile

@@ -0,0 +1,29 @@
+NASM = nasm
+LD = ld
+
+NASM_FLAGS := -felf64
+LD_FLAGS := --strip-all 
+
+SRC_PATH := src
+OBJ_PATH := build/obj
+BIN_PATH := build/bin
+
+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
+
+make-build-dir:
+	mkdir -p $(OBJ_PATH)
+	mkdir -p $(BIN_PATH)
+
+
+$(BIN_PATH)/asm-game-of-life: $(OBJ_FILES)
+	$(LD) $(LD_FLAGS) $^ -o $@
+
+
+$(OBJ_PATH)/%.o: $(SRC_PATH)/%.asm
+	$(NASM) $(NASM_FLAGS) $< -o $@
+
+clean:
+	rm -fr build

src/main.asm

@@ -0,0 +1,3 @@
+section .text
+global _start
+

src/str.asm

@@ -0,0 +1,24 @@
+SYS_WRITE equ 1
+STDOUT equ 1
+
+
+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
+