+; sped - the stupidly pointless editor
+; written by pinosaur
+; sped.asm: main file
-%macro write_str 2
- mov eax, 4
- mov ebx, 1
- mov ecx, %1
- mov edx, %2
- int 0x80
-%endmacro
+%include "macros.S"
+
+extern printf
+
+extern readFile
+extern repl
+
+global main
section .data
- msg db "SPED - the stupidly pointless editor", 0x0a
- len equ $ - msg
+ banner_str db `SPED - the stupidly pointless editor\n`, 0x00
+ nofile_str db `no file provided.\n`, 0x00
+ readlines_str db `opened file with %i lines.\n`, 0x00
section .text
-global _start
-_start:
- write_str msg, len
+main:
+ %define _ARGC 8
+ %define _ARGV 12
+
+ %define BUFFER 4
+ %define BUFFER_LINES 8
+ %define BUFFER_FILENAME 12
+
+ push ebp
+ mov ebp, esp
+ sub esp, 12
+
+ ; read command line args
+ mov ecx, [ebp+_ARGC]
+ cmp ecx, 1
+ jg _main_existing
+
+ ; display error msg if no file
+ push nofile_str
+ call printf
mov eax, 1
- mov ebx, 42
- int 0x80
+ jmp _main_exit
+
+ _main_existing:
+ mov ebx, DWORD [ebp+_ARGV]
+ add ebx, 4 ; first user arg is filename
+ mov ebx, [ebx]
+ mov [ebp-BUFFER_FILENAME], ebx
+
+ push DWORD [ebp-BUFFER_FILENAME]
+ call readFile
+
+ mov [ebp-BUFFER], eax
+ mov [ebp-BUFFER_LINES], ecx
+
+ push DWORD [ebp-BUFFER_LINES]
+ push readlines_str
+ call printf
+
+ push DWORD [ebp-BUFFER]
+ push DWORD [ebp-BUFFER_LINES]
+ push DWORD [ebp-BUFFER_FILENAME]
+ call repl
+
+ mov eax, 0
+ jmp _main_exit
+
+ _main_exit:
+
+ ; free string array
+
+ %undef _ARGC
+ %undef _ARGV
+ %undef BUFFER
+ %undef BUFFER_LINES
+ %undef BUFFER_FILENAME
+
+ mov esp, ebp
+ pop ebp
+ ret
+
