diff options
Diffstat (limited to 'sh.asm')
| -rw-r--r-- | sh.asm | 20 |
1 files changed, 13 insertions, 7 deletions
@@ -19,6 +19,12 @@ section .data ;option for waitid P_PGID equ 2 + + ;Special file descriptors + fd_stdin equ 0x00 + fd_stdout equ 0x01 + fd_stderr equ 0x02 + ;Syscall constants sys_read equ 0x00 sys_write equ 0x01 @@ -50,7 +56,7 @@ _start: mov rbx, rsp mov rax, sys_write - mov rdi, 0x1 + mov rdi, fd_stdout mov rsi, msg mov rdx, 0x1b syscall @@ -59,7 +65,7 @@ _start: _read_loop: mov rax, sys_write - mov rdi, 0x1 + mov rdi, fd_stdout mov rsi, prompt mov rdx, 0xd syscall @@ -70,7 +76,7 @@ _read_loop: _read_loopr: mov rax, sys_read - xor rdi, rdi + xor rdi, rdi ;stdin mov rsi, r15 mov rdx, 0xff syscall @@ -282,7 +288,7 @@ _parse3: _parse4: ; not found mov rax, sys_write - mov rdi, 0x1 + mov rdi, fd_stdout mov rsi, nfe mov rdx, 0x1a syscall @@ -422,7 +428,7 @@ _sigint_nc: ; Writes end of line to the terminal _weol: mov rax, sys_write - mov rdi, 0x1 + mov rdi, fd_stdout mov rsi, eol mov rdx, 0x1 syscall @@ -442,7 +448,7 @@ _builtin_cd: test rax, rax jz _read_loop mov rax, sys_write - mov rdi, 0x1 + mov rdi, fd_stdout mov rsi, no_dir_str mov rdx, no_dir_str_len syscall @@ -476,7 +482,7 @@ _builtin_exit: syscall _invalid_int: mov rax,sys_write - mov rdi, 0x1 + mov rdi, fd_stdout mov rsi, invalid_int_str mov rdx, invalid_int_str_len syscall |