wow it now reads one char!!!

2026-05-09 21:19:41 +03:00
parent c96bd06861
commit d4cbc9082a
3 changed files with 98 additions and 4 deletions
@@ -0,0 +1,87 @@
+%define STDIN 0
+%define STDOUT 1
+%define STDERR 2
+
+%define SYS_READ 0
+%define SYS_WRITE 1
+%define SYS_IOCTL 16
+%define SYS_EXIT 60
+
+%define TCGETS 0x5401
+%define TCSETS 0x5402
+
+section .data
+    ioctl_err_m db "ioctl error", 10, 0
+
+section .bss
+    orig_termios resb 60
+    raw_termios resb 60
+    cbuf resb 4
+    
+section .text
+    global _start
+    
+_start:
+    mov rax, SYS_IOCTL
+    mov rdi, STDIN
+    mov rsi, TCGETS
+    mov rdx, orig_termios
+    syscall
+    
+    test rax, rax
+    js ioctl_err
+    
+    mov rcx, 15
+    mov rsi, orig_termios
+    mov rdi, raw_termios
+    rep movsd
+    
+    mov eax, [raw_termios + 12]
+    and eax, ~(2 | 8 | 1)
+    mov [raw_termios + 12], eax
+    
+    mov rax, SYS_IOCTL
+    mov rdi, STDIN
+    mov rsi, TCSETS
+    mov rdx, raw_termios
+    syscall
+    
+    mov rax, SYS_READ
+    mov rdi, STDIN
+    mov rsi, cbuf
+    mov rdx, 4
+    syscall
+    
+    mov rdx, rax
+    mov rax, SYS_WRITE
+    mov rdi, STDOUT
+    mov rsi, cbuf
+    syscall
+    
+    mov rax, SYS_IOCTL
+    mov rdi, STDIN
+    mov rsi, TCSETS
+    mov rdx, orig_termios
+    syscall
+    
+    jmp exit
+
+ioctl_err:
+    args_err:
+    mov rax, SYS_WRITE
+    mov rdi, STDERR
+    mov rsi, ioctl_err_m
+    mov edx, 12
+    syscall
+
+    jmp exit_err
+
+exit_err:
+    mov rax, SYS_EXIT
+    mov rdi, 1
+    syscall
+
+exit:
+    mov rax, SYS_EXIT
+    mov rdi, 0
+    syscall