+; sped - the stupidly pointless editor
+; written by pinosaur
+; fileutils.asm: file i/o
%include "macros.S"
section .data
wrongfile_str db `unable to open file, error code: %i\n`, 0x00
+ returnvalue_str db `system call return was %i\n`, 0x00
section .text
push DWORD [ebp-FILE_HANDLE]
call readLine
-
mov esi, eax
mov [ebp-IS_EOF], ebx
; check if eof was reached
cmp DWORD [ebp-IS_EOF], 1
je _readFile_exit
-
- ; push esi
- ; call printf
; make string buffer bigger
mov eax, DWORD [ebp-LINES_READ]
add ecx, [ebp-CHAR_COUNT]
mov edx, 1
int 0x80
-
- ; mov eax, 4
- ; mov ebx, 1
- ; mov ecx, [ebp-STR_PTR]
- ; add ecx, [ebp-CHAR_COUNT]
- ; mov edx, 1
- ; int 0x80
; check for eof
cmp eax, 0 ; eax has zero on eof
; check if file was open successfully
cmp eax, 0
- jge _writeFile_loop
- push eax
- push wrongfile_str
- call printf
- jmp _writeFile_exit
+ jl _writeFile_error
+
+ ; truncate file
+ mov eax, 93
+ mov ebx, [ebp-FILE_HANDLE]
+ mov ecx, 1
+ int 0x80
_writeFile_loop:
jmp _writeFile_loop
+ _writeFile_error:
+ push eax
+ push wrongfile_str
+ call printf
+ jmp _writeFile_exit
+
_writeFile_exit:
; close file