From 4e111c61480510a55a38a078829ad8b6d6aedeb3 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 20:28:48 +0300 Subject: [PATCH] =?UTF-8?q?=D0=9F=D0=B5=D1=80=D0=B5=D0=B2=D0=BE=D0=B4=20?= =?UTF-8?q?=D0=B2=20=D0=B1=D0=B8=D0=BD=D0=B0=D1=80=D1=8C?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- stepik_base/10_to_2/.vscode/launch.json | 29 +++++ stepik_base/10_to_2/.vscode/tasks.json | 53 +++++++++ stepik_base/10_to_2/10_to_2.asm | 147 ++++++++++++++++++++++++ stepik_base/nasm.code-workspace | 3 + 4 files changed, 232 insertions(+) create mode 100644 stepik_base/10_to_2/.vscode/launch.json create mode 100644 stepik_base/10_to_2/.vscode/tasks.json create mode 100644 stepik_base/10_to_2/10_to_2.asm diff --git a/stepik_base/10_to_2/.vscode/launch.json b/stepik_base/10_to_2/.vscode/launch.json new file mode 100644 index 0000000..fb231dd --- /dev/null +++ b/stepik_base/10_to_2/.vscode/launch.json @@ -0,0 +1,29 @@ +{ + "version": "0.2.0", + "configurations": [ + { + "name": "(lldb) Launch x64", + "type": "lldb", + "request": "launch", + "program": "${workspaceFolder}/build/10_to_2", + "cwd": "${workspaceFolder}/build", + "preLaunchTask": "asm64", + }, + { + "name": "(gdb) Launch x64", + "type": "cppdbg", + "request": "launch", + "program": "${workspaceFolder}/build/10_to_2", + "cwd": "${workspaceFolder}/build", + "preLaunchTask": "asm64" + }, + { + "name": "(gdb+gcc) Launch x64", + "type": "cppdbg", + "request": "launch", + "program": "${workspaceFolder}/build/10_to_2", + "cwd": "${workspaceFolder}/build", + "preLaunchTask": "asm64+gcc" + } + ] +} \ No newline at end of file diff --git a/stepik_base/10_to_2/.vscode/tasks.json b/stepik_base/10_to_2/.vscode/tasks.json new file mode 100644 index 0000000..fea3a42 --- /dev/null +++ b/stepik_base/10_to_2/.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/10_to_2;", + "nasm -gdwarf -f elf64 -o $rawfilename.o ${workspaceFolder}/10_to_2.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/10_to_2;", + "nasm -gdwarf -f elf64 -o $rawfilename.o ${workspaceFolder}/10_to_2.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/10_to_2/10_to_2.asm b/stepik_base/10_to_2/10_to_2.asm new file mode 100644 index 0000000..ebc5e4a --- /dev/null +++ b/stepik_base/10_to_2/10_to_2.asm @@ -0,0 +1,147 @@ +global _start + +section .data +buff times 32 db 0 +buffend: +count dq 0 + +section .text +default rel + +_start: + call read_text + + lea rsi, [rel buff] ; поставить указатель на начало буфера + call read_num + call print_num_to_buf + + mov rdx, [count] + call write_text + + mov rax, 60 + mov rdi, 0 + syscall + +; Функция складывает два значения +; In: RDI, RSI +; Out: RAX +calculate_sum: + lea rax, [rdi + rsi] + ret + +; 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 читает число из stdin +; Out: RAX +read_num: + push rbx + push rcx + xor rbx, rbx ; обнулить регистр для символов + xor rax, rax ; обнулить аккумулирующий регистр + mov rcx, 10 ; множитель для сдвига + + lea rdi, [rel buff] ; rdi - конец данных + add rdi, [count] + + .while: + cmp rsi, rdi ; сначала проверяем границы, чтобы не читать за пределами + jge .return + + mov bl, [rsi] ; прочитать текущий символ + + cmp bl, 0xA ; если конец строки (\n) - закончить + je .return + cmp bl, 0 ; если null (\0) - закончить + jz .return + cmp bl, ' ' ; если пробел - закончить + jz .return + + mul rcx + and bl, 0x0F + add rax, rbx + inc rsi + jmp .while + +.return: + pop rcx + pop rbx + 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 + + .while: + xor rdx, rdx + test rax, rax + jz .break + mov dl, al + and dl, 1 + or dl, 0x30 + mov [rsi], dl + dec rsi + shr rax, 1 + jmp .while +.break: + inc rsi +.return: + sub rdi, rsi + inc rdi + mov [count], rdi + ret diff --git a/stepik_base/nasm.code-workspace b/stepik_base/nasm.code-workspace index 8966e78..16277a1 100644 --- a/stepik_base/nasm.code-workspace +++ b/stepik_base/nasm.code-workspace @@ -24,6 +24,9 @@ { "path": "less_greater_10_neg" }, + { + "path": "10_to_2" + }, { "path": "../docs" },