From 0716753b1fb236be66d42787b67a5365c89b61f5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=D0=9F=D1=8B=D1=82=D0=BA=D0=BE=D0=B2=20=D0=A0=D0=BE=D0=BC?= =?UTF-8?q?=D0=B0=D0=BD?= Date: Tue, 23 Sep 2025 21:12:41 +0300 Subject: [PATCH] =?UTF-8?q?=D0=9F=D0=BE=D0=B4=D1=81=D1=87=D1=91=D1=82=20?= =?UTF-8?q?=D1=81=D0=BB=D0=BE=D0=B2?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- stepik_base/nasm.code-workspace | 3 + stepik_base/word_count/.vscode/launch.json | 29 +++++ stepik_base/word_count/.vscode/tasks.json | 53 +++++++++ stepik_base/word_count/word_count.asm | 129 +++++++++++++++++++++ 4 files changed, 214 insertions(+) create mode 100644 stepik_base/word_count/.vscode/launch.json create mode 100644 stepik_base/word_count/.vscode/tasks.json create mode 100644 stepik_base/word_count/word_count.asm diff --git a/stepik_base/nasm.code-workspace b/stepik_base/nasm.code-workspace index 16277a1..022fa0e 100644 --- a/stepik_base/nasm.code-workspace +++ b/stepik_base/nasm.code-workspace @@ -27,6 +27,9 @@ { "path": "10_to_2" }, + { + "path": "word_count" + }, { "path": "../docs" }, diff --git a/stepik_base/word_count/.vscode/launch.json b/stepik_base/word_count/.vscode/launch.json new file mode 100644 index 0000000..9d95962 --- /dev/null +++ b/stepik_base/word_count/.vscode/launch.json @@ -0,0 +1,29 @@ +{ + "version": "0.2.0", + "configurations": [ + { + "name": "(lldb) Launch x64", + "type": "lldb", + "request": "launch", + "program": "${workspaceFolder}/build/word_count", + "cwd": "${workspaceFolder}/build", + "preLaunchTask": "asm64", + }, + { + "name": "(gdb) Launch x64", + "type": "cppdbg", + "request": "launch", + "program": "${workspaceFolder}/build/word_count", + "cwd": "${workspaceFolder}/build", + "preLaunchTask": "asm64" + }, + { + "name": "(gdb+gcc) Launch x64", + "type": "cppdbg", + "request": "launch", + "program": "${workspaceFolder}/build/word_count", + "cwd": "${workspaceFolder}/build", + "preLaunchTask": "asm64+gcc" + } + ] +} \ No newline at end of file diff --git a/stepik_base/word_count/.vscode/tasks.json b/stepik_base/word_count/.vscode/tasks.json new file mode 100644 index 0000000..1e5934d --- /dev/null +++ b/stepik_base/word_count/.vscode/tasks.json @@ -0,0 +1,53 @@ +{ + "version": "2.0.0", + "tasks": [ + { + "label": "asm64", + "type": "shell", + "command": [ + "builddir=${workspaceFolder}/build;", + "mkdir -p $builddir;", + "rawfilename=$builddir/word_count;", + "nasm -gdwarf -f elf64 -o $rawfilename.o ${workspaceFolder}/word_count.asm;", + "ld -g -o $rawfilename $rawfilename.o;" + ], + "problemMatcher": { + "pattern": { + "regexp": "error" + } + }, + "presentation": { + "focus": true, + "panel": "dedicated", + "reveal": "silent", + "clear": true + }, + "group": { + "kind": "build", + "isDefault": true + } + }, + { + "label": "asm64+gcc", + "type": "shell", + "command": [ + "builddir=${workspaceFolder}/build;", + "mkdir -p $builddir;", + "rawfilename=$builddir/word_count;", + "nasm -gdwarf -f elf64 -o $rawfilename.o ${workspaceFolder}/word_count.asm;", + "gcc -o $rawfilename $rawfilename.o;" + ], + "problemMatcher": { + "pattern": { + "regexp": "error" + } + }, + "presentation": { + "focus": true, + "panel": "dedicated", + "reveal": "silent", + "clear": true + }, + } + ] +} \ No newline at end of file diff --git a/stepik_base/word_count/word_count.asm b/stepik_base/word_count/word_count.asm new file mode 100644 index 0000000..0504069 --- /dev/null +++ b/stepik_base/word_count/word_count.asm @@ -0,0 +1,129 @@ +global _start + +section .data +buff times 350 db 0 +buffend: +count dq 0 + +section .text +default rel + +_start: + call read_text + + xor rax, rax + mov rcx, [count] + dec rcx + + lea rsi, [buff] + + mov r10, 1 ; просто единица + mov r8, 0 ; прошлый символ - не пробел + .loop: + mov dl, [rsi] + + cmp dl, ' ' + jne .continue ; если сейчас не пробел - выйти + test r8, r8 + jz .continue ; если прошлое пробел - выйти + + .space_after_word: + inc rax + .continue: + mov r8, 0 + cmp dl, ' ' + cmovne r8, r10 + inc rsi + loop .loop + + test r8, r8 + jz .print ; если прошлое пробел - выйти + inc rax +.print: + call print_num_to_buf + mov rdx, [count] + call write_text + + mov rax, 60 + mov rdi, 0 + syscall + +; Функция читает текст в буффер +; Регистры не изменяет +read_text: + push rax + push rdi + push rsi + push rdx + + mov rax, 0 ; sys_read + mov rdi, 0 ; stdin + lea rsi, [rel buff] ; адрес буфера + mov rdx, 256 ; количество байт + syscall + mov [count], rax + + pop rdx + pop rsi + pop rdi + pop rax + ret + +; Функция выводит buff +; In: +; - RSI - начало буфера +; - RDX - размер буфера +; Регистры не изменяет +write_text: + push rax + push rdi + push rsi + push rdx + + mov rax, 1 ; sys_write + mov rdi, 1 ; stdout + syscall + mov [count], rax + + pop rdx + pop rsi + pop rdi + pop rax + ret + + +; Функция выводит число в buff +; In: RAX +; Out: RSI - указатель на начало строки +print_num_to_buf: + lea rsi, [buffend] + dec rsi + + mov rdi, rsi ; сохранить последний адрес + mov byte [rsi], 0 ; вписать нуль + dec rsi + mov byte [rsi], 0xA ; вписать перенос строки + dec rsi + mov byte [rsi], '0' + + test rax, rax + jz .return + + mov rcx, 10 ; десятичный делитель + + .while: + xor rdx, rdx + test rax, rax + jz .break + div rcx + or dl, 0x30 + mov [rsi], dl + dec rsi + jmp .while +.break: + inc rsi +.return: + sub rdi, rsi + inc rdi + mov [count], rdi + ret \ No newline at end of file