%include "fileutils.S"
-global main
extern printf
extern fflush
extern stdout
+extern free
+
+global main
; macros
%macro write_str 2
jmp _main_exit
_main_exit:
+
+ ; free string array
+
+
%undef _ARGC
%undef _ARGV
mov eax, DWORD [ebp-CMDSTR]
mov eax, [eax]
- ; q exists program
+ ; q exists program =-=-=-=-=-=-=-=-=-=-=-=-=
mov eax, DWORD [ebp-CMDSTR]
cmp BYTE [eax], 'q'
jne _repl_cmd_quit_end
jmp _repl_exit
_repl_cmd_quit_end:
- ; p prints current line
+ ; p prints current line =-=-=-=-=-=-=-=-=-=-=
mov eax, DWORD [ebp-CMDSTR]
cmp BYTE [eax], 'p'
jne _repl_cmd_print_end
jmp _repl_continue
_repl_cmd_print_end:
- ; n prints the current line number
+ ; n prints the current line number =-=-=-=-=-=-=-=
mov eax, DWORD [ebp-CMDSTR]
cmp BYTE [eax], 'n'
jne _repl_cmd_number_end
jmp _repl_continue
_repl_cmd_number_end:
- ; - goes to prev line
+ ; - goes to prev line =-=-=-=-=-=-=-=-=-=-=-=-=
mov eax, DWORD [ebp-CMDSTR]
cmp BYTE [eax], '-'
jne _repl_cmd_decline_end
jmp _repl_continue
_repl_cmd_decline_end:
- ; + goes to next line
+ ; + goes to next line =-=-=-=-=-=-=-=-=-=-=-=-=
mov eax, DWORD [ebp-CMDSTR]
cmp BYTE [eax], '+'
jne _repl_cmd_incline_end
jmp _repl_continue
_repl_cmd_incline_end:
+ ; g goes to first line =-=-=-=-=-=-=-=-=-=-=-=-=
+ mov eax, DWORD [ebp-CMDSTR]
+ cmp BYTE [eax], 'g'
+ jne _repl_cmd_jumptop_end
+
+ mov DWORD [cur_line], 0x00
+
+ jmp _repl_continue
+ _repl_cmd_jumptop_end:
+
+ ; G goes to last line =-=-=-=-=-=-=-=-=-=-=-=-=
+ mov eax, DWORD [ebp-CMDSTR]
+ cmp BYTE [eax], 'G'
+ jne _repl_cmd_jumpbot_end
+
+ mov eax, DWORD [buffer_lines]
+ sub eax, 1
+ mov DWORD [cur_line], eax
+
+ jmp _repl_continue
+ _repl_cmd_jumpbot_end:
+
+ ; c changes the current line =-=-=-=-=-=-=-=-=-=
+ mov eax, DWORD [ebp-CMDSTR]
+ cmp BYTE [eax], 'c'
+ jne _repl_cmd_change_end
+
+ ; read a new line to use
+ push 0
+ call readLine
+
+ mov esi, eax
+
+ ; free old string
+ mov eax, [cur_line]
+ mov ecx, 4
+ mul ecx
+ add eax, [buffer]
+ push DWORD [eax]
+ call free
+
+ ; insert new string
+ mov eax, [cur_line]
+ mov ecx, 4
+ mul ecx
+ add eax, DWORD [buffer]
+ mov [eax], esi
+
+ jmp _repl_continue
+ _repl_cmd_change_end:
+
jmp _repl_invalid_cmd