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Assembly Source File | 1980-01-01 | 49KB | 1,971 lines

comment * WordStar Tab Ruler L-------!-------!---------------!----!----!----!----!----!----!----!---------------------------R 12-5-85 * cseg segment para public 'code' assume cs:cseg,ds:cseg,es:cseg,ss:cseg len_picture=2289 org 0h Zero: ;ret to DOS org 100h start: jmp init ;goto initialization routine buffer db 256 dup(?) handle dw ? char db ? filespec_buffer db 256 dup(?) screen_page db ? attrib db ? mode db ? say_color_flag db 0 cursor label word max_line db ? cur_line db ? max_col db ? cur_col db ? create db ? rotate db ? space_size db ? ins_del_flag db ? cursor_size dw ? screen_seg dw ? screen_buffer dw ? paste_size dw ? ; y/x size of paste_buffer last_x db ? last_y db ? block_cursor label word cursor_x db ? cursor_y db ? quad db ? wrap_flag db ? esc=27 getkey macro call get_keystroke endm get_keystroke: mov ah,1 int 16h jz GK_ret pushf mov ah,0 int 16h popf GK_ret: ret jump macro table,item mov bx,offset table mov al,item call table_jump endm ; search macro table,item mov bx,offset table mov ax,item call table_search endm ; table_jump: cmp cs:[bx],al ;too big an offset? jc TJ_end dec bx mov ah,0 add ax,ax ;prep offset add bx,ax ;get actual addr of routine jmp word ptr cs:[bx] ;go to routine TJ_end: ret ; table_search: push bx push cx ;search table @ BX for AL push dx push di or al,al ;2-byter jz TS_10 ;yes, don't clear top mov ah,0 ;otherwise... call capit_al TS_10: mov cl,[bx] ;get len of $ to search mov ch,0 mov di,bx TS_5: inc di ;skip length mov dx,[di] ;get table entry or dl,dl ;test for 2-byter jnz TS_2 ;no inc di jmp short TS_3 TS_2: mov dh,0 ;clear top byte for cmp TS_3: cmp ax,dx ;are they the same? je TS_4 ;go if they are loop TS_5 ;else go to end of table jmp short TS_1 ;done but not found TS_4: mov ch,[bx] ;get len of table again sub ch,cl ;get offset into table mov ah,ch ;get offset into ah inc ah ;make go from 1 xor bx,bx ;set flags TS_1: pop di pop dx pop cx pop bx ret ; capit_al: cmp al,'a' jc CA_1 cmp al,'z'+1 jnc CA_1 sub al,32 CA_1: ret retf macro pop_value ifb <pop_value> db 0cbH ;far ret w/no [pop-value] else db 0caH ;far ret w/pop-value dw pop_value endif endm ; ceol db esc,'[K$' print_cs_space: mov ah,9 int 21h mov dl,32 mov ah,2 int 21h ret print_cs: mov ah,9 int 21h mov dx,offset ceol mov ah,9 int 21h ret save_screen: mov si,0 mov di,[screen_buffer] mov ax,screen_seg mov ds,ax mov cx,1760 rep movsw mov ax,es mov ds,ax ret MU_undo: restore_screen: pushf push ax push cx push si push di mov ax,screen_seg mov es,ax mov si,[screen_buffer] mov di,0 mov cx,1760 rep movsw mov ax,ds mov es,ax pop di pop si pop cx pop ax popf ret memory_error db 'Memory allocation error (not enough, or bad allocation blocks)',13,10,10 break_handler: iret No_parm: call cls mov cx,len_picture mov dx,offset screen_buffer_1 mov bx,0 ;CON mov ah,40h ;write to file int 21h np_1: getkey jnz np_1 np_2: getkey jz np_2 call cls jmp editor bad_dos_version db 'tDoodle 1.00: Incorrect DOS Version.$' parm_error_so: jmp parm_error ;************* Start ********************* init: mov ah,30h int 21h ;get DOS ver # cmp al,2 jae init_9 mov dx,offset bad_dos_version mov ah,9 int 21h jmp zero init_9: mov bx,offset end_of_code mov cl,4 shr bx,cl ;turn byte count into para's inc bx mov ah,4Ah int 21h jnc init_10 mov dx,offset Memory_error call print_cs jmp zero no_parm_so: jmp no_parm init_10: mov ah,25h ;get ^Break addr mov al,23h ;^BREAK int # mov dx,offset Break_handler int 21h mov ah,3 int 10h ;get cursor size mov cursor_size,cx call fix_cursor_block mov screen_buffer,offset screen_buffer_1 mov di,offset filespec_buffer mov al,64 stosb mov si,80h ;parameter addr lodsb ;get len of command$ mov bl,al mov bh,0 or bl,bh ;is len(parm)=0? jz No_Parm_so mov byte ptr [si+bx],0 ;terminate ASCIIZ init_loop_1: lodsb ;get char of $ or al,al ;EOS? jz Parm_error_so cmp al,13 ;EOS? jz Parm_error_so cmp al,9 ;nothing? jz init_loop_1 cmp al,32 ;space? jz init_loop_1 dec si push si mov cl,0 inc di init_1: lodsb stosb inc cl cmp al,0 ;EOS? jne init_1 dec cl mov byte ptr [filespec_buffer+1],cl pop si mov dx,si mov al,2 ;open for r/w mov ah,3Dh int 21h ;open file jnc Load_File_so cmp al,2 jnz File_open_error mov dx,si mov ah,3Ch mov cx,0 int 21h jc File_open_error Load_file_so: jmp Load_file Parm_error_message db 'Bad parameter line',13,10,'$' File_open_error_message db 'Couldn',27h,'t open file',13,10,'$' Load_error_message db 'Had trouble loading file.',13,10,'$' Parm_error: mov dx,offset Parm_error_message call print_cs jmp ret_to_dos File_open_error: mov dx,offset File_open_error_message call print_cs jmp ret_to_dos Load_error: mov byte ptr [di-1],13 mov bx,handle mov ah,3Eh int 21h mov dx,offset Load_error_message call print_cs Ret_to_DOS_2: Ret_to_DOS: jmp Zero cls_string db esc,'[=2h',esc,'[?7h',esc,'[0m',esc,'[2J','$' cls: mov dx,offset cls_string call print_cs mov attrib,7 call fix_cursor_block ret Load_File: mov handle,ax call cls Load_loop: mov bx,handle mov ah,3Fh mov cx,1 mov dx,offset buffer int 21h jc Load_Error or ax,ax jz Load_Ended mov dl,byte ptr [buffer] cmp dl,26 ;^Z terminating? jz Load_Ended mov ah,2 int 21h jmp Load_loop Load_Ended: mov bx,handle mov ah,3Eh int 21h ;close file mov cx,0 ;home cursor call set_cur_pos jmp Editor text_table db 14 db 8 ;bksp db 13 ;RET db 0,71 ;HOME db 0,72 ;up db 0,73 ;PgUp db 0,75 ;lt db 0,77 ;rt db 0,79 ;END db 0,80 ;dn db 0,81 ;PgDn db 27 ;ESC db 0,82 ;INS db 0,83 ;DEL db 9 ;TAB text_jmp_table db 14 dw offset key_bksp dw offset key_cr dw offset key_home dw offset key_up dw offset key_pgup dw offset key_lt dw offset key_rt dw offset key_end dw offset key_dn dw offset key_pgdn dw offset key_esc dw offset key_ins dw offset key_del dw offset key_tab cmd_key db 8, esc,'RCSLQWF' cmd_table db 8 dw offset cmd_esc ;toggle to/from text/cmd dw offset cmd_R ;replace (not implemented) dw offset cmd_C ;set Colors dw offset cmd_S ;Save file dw offset cmd_L ;Load file dw offset cmd_Q ;Quit tDoodle dw offset cmd_W ;Wipe out screen (cls) dw offset cmd_F ;Flip between screens box_key_table db 14, 'QWEASDZXC-_\| ' box_table_list label word dw offset box_table_1 dw offset box_table_2 dw offset box_table_3 dw offset box_table_4 box_table_1 db 218,194,191,195,197,180,192,193,217,196,196,179,179,32 box_table_2 db 201,203,187,204,206,185,200,202,188,205,205,186,186,32 box_table_3 db 213,209,184,198,216,181,212,207,190,205,205,179,179,32 box_table_4 db 214,210,183,199,215,182,211,208,189,196,196,186,186,32 fn_table db 10 db 0,59 ;F1: rotate box modes db 0,60 ;F2: set csr attr to cur attr db 0,61 ;F3: reverse screen attribs db 0,62 ;F4: rotate paint/text/both db 0,63 ;F5: show colors db 0,64 ;F6: Flip from one screen to the other db 0,65 ;F7: Pickup db 0,66 ;F8: PutDown db 0,67 ;F9: Undo db 0,68 ;F0: Macros mode_update_table db 10 dw offset MU_boxes dw offset MU_attrib dw offset MU_reverse dw offset MU_put_mode dw offset MU_show_colors dw offset MU_flip dw offset MU_Pickup dw offset MU_PutDown dw offset MU_Undo dw offset MU_Macros key_bksp: key_lt: call get_cur cmp cl,0 jz KL_1 dec cl SCP: jmp Set_cur_pos KL_1: cmp wrap_flag,255 jne scp mov cl,78 Key_up_2: or ch,ch jz Set_cur_pos dec ch jmp Set_Cur_pos Key_cr: call get_cur cmp ch,21 jz Set_Cur_pos inc ch mov cl,0 jmp Set_Cur_pos Key_rt: call get_cur cmp cl,78 jne KR_1 cmp wrap_flag,255 jne set_cur_pos jmp Key_cr KR_1: inc cl Set_cur_pos: mov ah,2 mov bh,screen_page mov dx,cx int 10h cmp say_color_flag,0 jz SCP_ret call say_color SCP_ret: ret Key_up: call get_cur jmp Key_up_2 Key_dn: call get_cur cmp ch,21 jz Set_cur_pos inc ch jmp Set_cur_pos Key_home: mov cx,0 jmp Set_cur_pos Key_PgUp: call Key_up call key_rt ret Key_PgDn: call Key_dn call key_rt ret Key_End: mov cx,21*256 jmp Set_cur_pos get_cur: mov ah,3 mov bh,screen_page int 10h mov cx,dx ret key_esc: clc call save_cur pop ax ret key_ins: mov bh,screen_page mov ah,3 int 10h mov cursor,dx mov al,attrib push ax mov ins_del_flag,255 push dx ;save it for later mov dl,78 ;last col KI_1: dec dl mov ah,2 ;set curpos int 10h mov ah,8 int 10h ;read c/a mov attrib,ah push ax inc dl mov ah,2 int 10h pop ax push dx call alt_modes pop dx mov cx,1 mov ah,9 int 10h ;write c/a dec dl pop cx cmp dl,cl push cx jne KI_1 pop cx mov ah,2 int 10h ;reset cursor pop ax mov attrib,al mov al,32 call alt_modes mov cx,1 mov ah,9 int 10h mov ins_del_flag,0 ret key_del: mov bh,screen_page mov ah,3 int 10h ;get curpos mov cursor,dx mov al,attrib push ax mov ins_del_flag,255 kd_1: inc dl ;next col over mov ah,2 int 10h mov ah,8 int 10h ;get c/a mov attrib,ah push ax dec dl mov ah,2 int 10h pop ax push dx call alt_modes pop dx mov cx,1 mov ah,9 int 10h inc dl cmp dl,78 jne kd_1 mov ah,2 int 10h pop ax mov attrib,al mov al,32 call alt_modes mov cx,1 mov ah,9 int 10h mov dx,cursor mov ah,2 int 10h mov ins_del_flag,0 ret key_tab: mov bh,screen_page mov ah,3 int 10h ;get curpos mov cl,3 sar dl,cl inc dl sal dl,cl and dl,255-7 cmp dl,78 jbe kt_cont mov dl,78 cmp dh,22 je kt_cont inc dh mov dl,0 kt_cont: mov ah,2 int 10h ret fix_cursor_block: mov ah,15 int 10h ;get screen mode mov screen_page,bh mov cx,12 mov dx,0B000h ;mono seg mov say_color_flag,255 cmp al,7 ;monochrome jz set_cursor_block mov cl,7 mov dx,0B800h ;cga seg mov say_color_flag,0 set_cursor_block: mov screen_seg,dx mov ah,1 int 10h ;set new cursor ret restore_cursor_block: mov cx,cursor_size mov ah,1 int 10h ret Editor: mov attrib,7 ;default, white on black mov mode,0 ;text mode Editor_loop: mov wrap_flag,255 call display_ctrls call mode_text ;go update screen call mode_cmd jnc Editor_loop call restore_cursor_block jmp Ret_to_DOS_2 mode_text: getkey jz mode_text push ax search text_table,ax jnz MT_text pop dx jump text_jmp_table,ah jmp mode_text MT_text: pop ax ;get back key push ax ;and save it back search fn_table,ax je mode_update pop ax or al,al jz mode_text ;bad keystroke cmp al,32 jb mode_text call alt_modes mov cx,1 mov ah,9 int 10h call key_rt jmp mode_text mode_update: pop dx ;clear stack jump mode_update_table,ah mov wrap_flag,255 jmp mode_text MU_boxes: mov ah,mode test ah,128 jz F1_start mov al,ah and al,252 inc ah and ah,3 or ah,ah jz F1_end or ah,al mov mode,ah call display_ctrls ret F1_end: and al,127 mov mode,al call display_ctrls ret F1_start: or ah,128 and ah,252 mov mode,ah call display_ctrls ret MU_attrib: mov ah,8 mov bh,screen_page int 10h mov attrib,ah call display_ctrls ret MU_reverse: mov ah,attrib mov al,ah mov cl,4 ror ah,cl and ah,255-(128+8) ;clear int/blnk bits and al,128+8 or ah,al ;move old blnk/int into attribs mov attrib,ah call display_ctrls ret MU_put_mode: mov ah,mode mov cl,5 ror ah,cl and ah,3 test ah,1 ;not "both"? jnz MU_pm_1 ;go if not "both" mov ah,1 MU_pm_3: mov al,mode and al,255-96 ;clear out current mode rol ah,cl or al,ah mov mode,al ;set new one call display_ctrls ret MU_pm_1: xor ah,2 ;set 0 to 1 test ah,2 ;is it 0 jz MU_pm_2 jmp MU_pm_3 MU_pm_2: mov ah,0 jmp MU_pm_3 mu_sc_setup db esc,'[24;1f$' mu_sc_colors db 8 dw offset mu_black dw offset mu_blue dw offset mu_green dw offset mu_cyan dw offset mu_red dw offset mu_magenta dw offset mu_yellow dw offset mu_white mu_black db 'Black$' mu_blue db 'Blue$' mu_green db 'Green$' mu_cyan db 'Cyan$' mu_red db 'Red$' mu_magenta db 'Magenta$' mu_yellow db 'Yellow$' mu_white db 'White$' mu_blinking db 'Blinking$' mu_bright db 'Bright$' mu_on db 'on$' mu_comma db 8,',$' MU_show_colors: xor say_color_flag,255 cmp say_color_flag,0 jne say_color ret say_color: push ax push bx push cx push dx push si push di mov bh,screen_page mov ah,8 int 10h ;get c/a push ax mov ah,3 int 10h ;get curpos mov cursor,dx mov dx,offset mu_sc_setup call print_cs pop ax ;get c/a push ax test ah,8 ;bright? jz MU_sc_1 mov dx,offset mu_bright call print_cs_space pop ax push ax test ah,128 ;blinking? jz mu_sc_1 mov dx,offset mu_comma call print_cs_space pop ax push ax mu_sc_1: test ah,128 ;blinking? jz mu_sc_2 mov dx,offset mu_blinking call print_cs_space pop ax push ax mu_sc_2: and ah,7 ;get foreground color mov al,ah mov ah,0 add ax,ax mov bx,ax inc bx mov si,offset mu_sc_colors mov dx,[si+bx] call print_cs_space mov dx,offset mu_on call print_cs_space pop ax mov cl,4 ror ah,cl and ah,7 mov al,ah mov ah,0 add ax,ax mov bx,ax inc bx mov dx,[si+bx] call print_cs mov dx,cursor mov ah,2 mov bh,screen_page int 10h pop di pop si pop dx pop cx pop bx pop ax ret alt_modes: test mode,128 ;is graphic active? jz AM_paint ;no, go check attr only test ins_del_flag,1 ;no box conv? jnz AM_paint search box_key_table,ax je AM_1 pop ax ;clear stack jmp mode_text AM_1: mov dl,mode mov dh,0 and dl,3 add dx,dx mov bx,offset box_table_list add bx,dx mov bx,cs:[bx] ;get addr of xlat table dec ah mov al,ah mov ah,0 add bx,ax mov al,cs:[bx] ;get xlated box part AM_paint: ;t/a lockout? push ax test mode,32 jz AM_normal mov bh,screen_page mov ah,8 int 10h ;get c/a test mode,64 ;text only? jz AM_attr ;no, attr only. mov bl,ah ;set attr to what's under cur mov bh,screen_page pop ax ;recover text ret AM_attr: pop dx ;scrap old text mov bh,screen_page mov bl,attrib ret AM_normal: pop ax mov bh,screen_page mov bl,attrib ret mup_inst db esc,'[24;1fUse ',24,' ',25,' ',26,' and ',27,' to move,',13,10 db 'F7 to set other end of block, ESC to abort CUT.$' mu_Pickup: call save_screen call save_cur mov say_color_flag,0 mov wrap_flag,0 mov di,0700h mov si,00FFh ;setup for CLS2 mov dx,0 ;csrpos mov bh,screen_page push cursor call cls2 pop cursor mov dx,offset mup_inst call print_cs call restore_cur mov dx,cursor mov block_cursor,dx mov last_x,dl mov last_y,dh call fix_block mup_1: getkey jz mup_1 cmp ax,4100h ;F7? je mup_2 search text_table,ax jne mup_1 cmp ah,2 je mup_1 cmp ah,3 je mup_1 cmp ah,8 je mup_1 cmp ah,12 je mup_1 cmp ah,13 je mup_1 cmp ah,11 je mup_esc jump text_jmp_table,ah call fix_block jmp mup_1 mup_esc: call restore_screen call display_ctrls call restore_cur ret mup_2: mov bh,screen_page mov ah,3 ;read curpos int 10h mov cx,block_cursor cmp ch,dh ;make DX hold bigger y/x jbe mup_3 xchg ch,dh mup_3: cmp cl,dl jbe mup_4 xchg cl,dl mup_4: push dx ;save bigger values sub dx,cx inc dl inc dh ;make go from 1 mov paste_size,dx ;set y/x of block size pop dx call restore_screen mov di,offset paste_buffer xchg cx,dx ;move small curpos to cursor register mup_6: push dx mup_5: mov ah,2 int 10h mov ah,8 int 10h stosw cmp dl,cl je mup_next_line inc dl jmp mup_5 mup_next_line: pop dx cmp dh,ch je mup_end inc dh jmp mup_6 mup_end: jmp mup_esc fb_y_more: jmp fb_y_more_routine fix_block: mov bh,screen_page mov ah,3 int 10h ;get curpos cmp dl,last_x jb fb_x_less ja fb_x_more call fb_center fb_1: cmp dh,last_y jb fb_y_less ja fb_y_more call fb_center fb_2: mov last_x,dl mov last_y,dh mov ah,2 int 10h ;reset curpos ret fb_x_less: cmp dl,cursor_x jb fbxl_less mov cl,last_x cmp dl,cl push dx mov attrib,7 mov dh,last_y jbe fbxl_1 xchg dl,cl fbxl_1: inc dl call fb_v_line cmp dl,cl jne fbxl_1 pop dx jmp fb_1 fbxl_less: mov cl,last_x cmp dl,cl push dx mov attrib,7*16 jae fbxl_2 xchg dl,cl fbxl_2: call fb_v_line cmp dl,cl je fbxl_3 dec dl jmp fbxl_2 fbxl_3: pop dx jmp fb_1 fb_x_more: cmp dl,cursor_x ja fbxl_less mov cl,last_x push dx mov attrib,7 mov dh,last_y cmp dl,cl jbe fbxm_1 xchg dl,cl fbxm_1: call fb_v_line inc dl cmp dl,cl jne fbxm_1 pop dx jmp fb_1 fb_y_less: mov quad,0 cmp dh,cursor_y mov quad,0 jb fbyl_less mov quad,255 fbym_1: mov ch,last_y cmp dh,ch push dx mov attrib,7 mov dl,last_x jbe fbyl_1 xchg dh,ch fbyl_1: call fbyl_fix_quad_3_4 fbyl_2: call fb_h_line inc dh cmp dh,ch jne fbyl_2 pop dx jmp fb_2 fbyl_less: mov ch,last_y cmp dh,ch push dx mov attrib,7*16 jae fbyl_4 xchg dh,ch fbyl_4: dec ch fbyl_3: call fb_h_line dec dh cmp dh,ch jne fbyl_3 pop dx jmp fb_2 fb_y_more_routine: cmp dh,cursor_y mov quad,255 ja fbyl_less mov quad,0 jmp fbym_1 fbyl_fix_quad_3_4: test quad,255 jz fbylfq34_ret inc ch inc dh fbylfq34_ret: ret fb_v_line: push dx push cx mov bh,screen_page mov ch,cursor_y cmp dh,ch jbe fbvl_1 xchg dh,ch fbvl_1: mov ah,2 ;set curpos int 10h mov ah,8 int 10h ;read c/a push cx mov bl,attrib mov cx,1 mov ah,9 int 10h ;write new attrib pop cx cmp dh,ch je fbvl_2 inc dh jmp fbvl_1 fbvl_2: pop cx pop dx ret fb_h_line: push dx push cx mov bh,screen_page mov cl,cursor_x cmp dl,cl jbe fbhl_1 xchg dl,cl fbhl_1: mov ah,2 ;set curpos int 10h mov ah,8 int 10h ;read c/a push cx mov bl,attrib mov cx,1 mov ah,9 int 10h ;write new attrib pop cx cmp dl,cl je fbhl_2 inc dl jmp fbhl_1 fbhl_2: pop cx pop dx ret fb_center: push dx mov ah,3 int 10h pop cx push dx mov dx,cx mov ah,2 int 10h mov ah,8 int 10h push cx mov bl,7*16 mov cx,1 mov ah,9 int 10h pop cx pop dx mov ah,2 int 10h mov dx,cx ret mu_putdown: call save_screen ;save for later undo mov al,attrib push ax mov ins_del_flag,255 mov bh,screen_page mov ah,3 int 10h ;get curpos push dx ;save it mov ah,22 xchg ah,dh sub dh,ah mov al,79 xchg al,dl sub dl,al mov cx,paste_size cmp dh,ch ;take smaller of two jbe mupd_1 mov dh,ch mupd_1: cmp dl,cl jbe mupd_2 mov dl,cl mupd_2: mov si,offset paste_buffer mov cl,dh ;get # lines to do mov ch,0 ;into CX mov bl,dl ;get # cols mov bh,0 ;into BX pop dx ;get cursor pos push dx mupd_4: push dx ;save cursor pos push cx ;save # lines to do push si ;save current paste_buffer position mov cx,bx ;get # cols to do mupd_3: push cx ;save # cols left push bx ;save total cols to do mov bh,screen_page mov ah,2 ;set curpos int 10h lodsw ;get c/a from p_buff mov attrib,ah push dx push si call alt_modes pop si pop dx mov cx,1 mov ah,9 int 10h ;write c/a from buffer pop bx pop cx ;get # chrs to do inc dl ;next csr col loop mupd_3 pop si ;restore start of line in paste buffer mov cx,paste_size mov ch,0 add cx,cx add si,cx pop cx ;get # lines left to do pop dx ;restore cursor pos inc dh loop mupd_4 pop dx mov bh,screen_page mov ah,2 int 10h ;restore curpos pop ax mov attrib,al mov ins_del_flag,0 ret Macro_mess_1 db esc,'[24;1f',esc,'I give up. If you want macros, use ProKey or something.$' MU_Macros: call save_cur mov dx,offset Macro_mess_1 call print_cs call restore_cur ret cmd_f: MU_flip: mov dx,offset screen_buffer_2 cmp screen_buffer, offset screen_buffer_1 je MUF_set mov dx,offset screen_buffer_1 MUF_set: push dx call save_screen pop dx mov screen_buffer,dx call restore_screen ret wipe_prompt_1 db esc,'[24;1fAttributes, Text or Both (a/t/b)? $' wipe_prompt_2 label byte quit_prompt db esc,'[24;1fAre you sure (y/n)? $' command_prompt db esc,'[24;1f',esc,'[0mCommand: $' save_prompt db esc,'[24;1fSave to $' CL_prompt db esc,'[24;1fLoad from $' home db esc,'[1;1f$' CL_err_mess db esc,'[24;1fError in Loading of file. Hit key to resume editing.$' CS_err_mess db esc,'[24;1fError: Couldn',27h,'t save file. Hit key to resume editing.$' crlf db 13,10 ctrl_z db 26 save_cur: mov bh,screen_page mov ah,3 int 10h mov cursor,dx ret restore_cur: mov bh,screen_page mov ah,2 mov dx,cursor int 10h ret get_filespec: call print_cs call save_screen push si mov dx,offset filespec_buffer mov si,dx mov bl,[si+1] mov bh,0 mov byte ptr [si+bx+2],13 xchg bx,si pop si mov ah,0Ah int 21h ;input filename mov bx,offset filespec_buffer+2 mov dx,bx mov al,[bx-1] mov ah,0 or ax,ax jz get_fs_ret_err add bx,ax mov byte ptr [bx],0 push bx ;open file for r/w mov al,2 push dx mov ah,3Dh int 21h pop dx pop bx jnc get_fs_ret test create,255 jz get_fs_ret_err push bx mov ah,3Ch mov cx,0 mov al,2 int 21h pop bx jnc get_fs_ret get_fs_ret_err: stc get_fs_ret: mov byte ptr [bx],13 ;set buffer back to normal call restore_screen ret adjust: mov dl,max_col mov dh,cur_line adjust_loop: dec dl cmp dl,255 jz adjust_end mov ah,2 mov bh,screen_page int 10h ;set cur_pos mov ah,8 mov bh,screen_page int 10h cmp al,0 je adjust_loopB cmp al,255 je adjust_loopB cmp al,32 je adjust_loopB adjust_end: inc dl mov max_col,dl A_ret: ret adjust_loopB: and ah,7*16 ;test for background color on. jz adjust_loop jmp adjust_end fix_attrib: cmp ah,attrib je A_ret push dx push cx push bx push ax ;save c/a mov bp,offset buffer+2 push bp mov attrib,ah mov byte ptr [bp],'0' inc bp mov byte ptr [bp],';' inc bp mov byte ptr [bp],'3' inc bp and ah,7 call xlat_colors add ah,30h ;make decimal mov byte ptr [bp],ah inc bp mov byte ptr [bp],';' inc bp test attrib,16+32+64 ;background set? jz no_background mov byte ptr [bp],'4' inc bp mov ah,attrib mov cl,4 ror ah,cl and ah,7 call xlat_colors add ah,30h mov byte ptr [bp],ah inc bp mov byte ptr [bp],';' inc bp no_background: test attrib,8 jz no_intensity mov byte ptr [bp],'1' inc bp mov byte ptr [bp],';' inc bp no_intensity: test attrib,128 jz no_blinking mov byte ptr [bp],'5' inc bp inc bp no_blinking: dec bp mov byte ptr [bp],'m' inc bp pop cx push cx ;save pointer to buffer xchg cx,bp sub cx,bp inc cx inc cx pop bp ;restore ptr mov byte ptr [bp-2],27 mov byte ptr [bp-1],'[' mov dx,offset buffer mov ah,40h mov bx,handle int 21h pop ax pop bx pop cx pop dx ret colors db 0,4,2,6,1,5,3,7 Xlat_Colors: push bx push ax mov al,ah mov bx,offset colors xlat colors pop bx mov ah,al mov al,bl pop bx ret color_list db esc,'[24;1f' db esc,'[0;30;5;47mB',esc,'[0;30;47mlack' ;Black db esc,'[0;34;1;40m b',esc,'[0;34;1;5mL',esc,'[0;34;1mue ' ;bLue db esc,'[0;32;1;5;40mG',esc,'[0;32;1mreen ' ;Green db esc,'[0;36;1;5;40mC',esc,'[0;36;1myan ' ;Cyan db esc,'[0;31;1;5;40mR',esc,'[0;31;1med ' ;Red db esc,'[0;35;1;5;40mM',esc,'[0;35;1magenta ' ;Magenta db esc,'[0;33;1;5;40mY',esc,'[0;33;1mellow ' ;Yellow db esc,'[0;37;1;5;40mW',esc,'[0;37;1mhite ' ;White db '$' colors_table db 9, 'BLGCRMYW',ESC color_fore_back db esc,'[24;1fForeground or Background (f/b)? $' color_blinking_mess db esc,'[24;1fBlinking (y/n)? $' color_int_mess db esc,'[24;1fBright (y/n)? $' cmd_R: ret cmd_C: mov dx,offset color_fore_back call print_cs CC_1: getkey jz cc_1 or al,al jz cc_1 call capit_al cmp al,27 je cc_ret cmp al,'F' mov cl,0 ;rotate no bits. je cc_get_color cmp al,'B' mov cl,4 je cc_get_color jmp cc_1 cc_ret: ret cc_get_color: mov rotate,cl ;save distance to rotate mov dx,offset color_list call print_cs cc_2: getkey jz cc_2 or al,al jz cc_2 search colors_table,ax JNE CC_2 CMP AH,9 JZ CC_RET dec ah ;make a color mov cl,rotate rol ah,cl ;set for attrib pos mov al,attrib mov dl,7 ;a mask rol dl,cl ;pos it or al,dl xor al,dl ;remove unwanted bits or al,ah ;put in new bits mov attrib,al or cl,cl ;doing foreground? jnz cc_ret ;no, skip other questions and al,7+7*16 ;eliminate blink+intensity bits mov attrib,al mov dx,offset color_int_mess call print_cs cc_3: getkey jz cc_3 or al,al jz cc_3 call capit_al cmp al,esc jz cc_ret cmp al,'N' jz cc_4 cmp al,'Y' jne cc_3 or attrib,8 cc_4: mov dx,offset color_blinking_mess call print_cs cc_5: getkey jz cc_5 or al,al jz cc_5 call capit_al cmp al,esc jz cc_ret2 cmp al,'N' jz cc_ret2 cmp al,'Y' jne cc_5 or attrib,128 cc_ret2: ret CS_error: jmp Save_error cmd_S: mov create,255 mov dx,offset save_prompt call get_filespec jc CS_error mov handle,ax mov attrib,7 ;set attrib to default mov cur_line,21 save_start: cmp cur_line,0 jnz ss_1 jmp nothing_to_save ss_1: mov max_col,79 call adjust dec cur_line cmp max_col,0 jz save_start mov al,cur_line inc al inc al mov max_line,al mov cur_line,0 Save_loop: mov max_col,79 mov cur_col,0 call adjust inc max_col mov cl,max_col mov ch,0 push cx Save_line: pop cx dec cx jcxz Save_line_done push cx mov dl,cur_col mov dh,cur_line mov bh,screen_page mov ah,2 int 10h mov ah,8 int 10h ;get c/a from screen call fix_attrib mov byte ptr [buffer],al mov cx,1 mov dx,offset buffer mov ah,40h mov bx,handle int 21h ;write chr to file inc cur_col jmp Save_line Save_line_done: inc cur_line mov dx,offset crlf mov cx,2 mov bx,handle mov ah,40h int 21h mov al,cur_line cmp al,max_line jz Save_done jmp Save_loop Save_done: Nothing_to_save: mov dx,offset ctrl_z mov cx,1 mov ah,40h mov bx,handle int 21h jc Save_error or ax,ax jz Save_error call CL_Ended ret Save_error: mov dx,offset CS_err_mess call print_cs mov ah,0Ch mov al,1 int 21h ret cmd_L: mov create,0 mov dx,offset CL_prompt call get_filespec jc CL_error_2 mov handle,ax mov dx,offset home call print_cs CL_loop: mov bx,handle mov ah,3Fh mov cx,1 mov dx,offset buffer int 21h jc CL_Error or ax,ax jz CL_Ended mov dl,byte ptr [buffer] cmp dl,26 ;^Z terminating? jz CL_Ended mov ah,2 int 21h jmp CL_loop CL_Ended: mov bx,handle mov ah,3Eh int 21h ;close file ret CL_Error: call CL_ended ;close file CL_error_2: mov dx,offset CL_err_mess call print_cs mov ah,0Ch mov al,1 int 21h ret cmd_Q: mov dx,offset quit_prompt call print_cs quit_loop: getkey jz quit_loop or al,al jz quit_loop call capit_al cmp al,'N' je quit_end cmp al,esc je quit_end cmp al,'Y' jne quit_loop pop ax stc ret quit_end: ret cmd_M: ret cmd_W: mov dx,offset wipe_prompt_1 call print_cs wl_1: getkey jz wl_1 or al,al jz wl_1 call capit_al cmp al,esc ;ESC key hit? jz wipe_end mov dx,00FFh ;attribs? mov cx,0700h cmp al,'A' jz wl_2 mov dx,0FF00h ;text mov cx,0020h cmp al,'T' jz wl_2 mov dx,0000 ;both mov cx,0720h cmp al,'B' jnz wl_1 wl_2: push dx push cx mov dx,offset wipe_prompt_2 call print_cs wipe_loop: getkey jz wipe_loop or al,al jz wipe_loop call capit_al cmp al,'N' je wipe_end cmp al,esc je wipe_end cmp al,'Y' jne wipe_loop pop di pop si mov dx,0 ;new cursor pos mov bh,screen_page cls2: mov ah,2 ;set curpos int 10h mov ah,8 ;read c/a int 10h and ax,si ;clear unwanted part or ax,di ;move in new replacement mov bl,ah mov cx,1 mov ah,9 int 10h ;write new c/a inc dl cmp dl,79 jne cls2 mov dl,0 inc dh cmp dh,22 jne cls2 mov cursor,0 mov attrib,7 wipe_end: ret cmd_esc: clc pop ax call restore_cur ret mode_cmd: mov dx,offset command_prompt call print_cs MC_key_loop: getkey jz MC_key_loop search cmd_key,ax jne MC_key_loop jump cmd_table,ah jmp mode_cmd status_line_1 db esc,'[23;1f',esc,'[0;40;33;7mtDoodle 1.00 ' db ' Mode: $' status_line_2 db 'Current Attribute',esc,'[0;40;33;7m Box: $' status_line_3 db esc,'[0;6m$' status_line_4 db 'Paint $' status_line_5 db 'Text $' status_line_6 db 'Both $' status_line_help db 10,13,esc,'[K' db esc,'[0;1m1',esc,'[0;7mBox ' db esc,'[0;1m 2',esc,'[0;7mGetClr' db esc,'[0;1m 3',esc,'[0;7mRevers' db esc,'[0;1m 4',esc,'[0;7mMode ' db esc,'[0;1m 5',esc,'[0;7mSayClr' db esc,'[0;1m 6',esc,'[0;7mFlip ' db esc,'[0;1m 7',esc,'[0;7mCut ' db esc,'[0;1m 8',esc,'[0;7mPaste ' db esc,'[0;1m 9',esc,'[0;7mUndo ' db esc,'[0;1m 0',esc,'[0;7mMacros' db esc,'[0m$' display_ctrls: push cursor call save_cur mov dx,offset status_line_1 call print_cs mov ah,mode mov cl,5 ror ah,cl mov dx,offset status_line_6 and ah,3 jz DC_2 mov dx,offset status_line_4 dec ah jz DC_2 mov dx,offset status_line_5 DC_2: call print_cs mov handle,0 ;con: mov ah,attrib push ax mov ah,0 ;force attrib change call fix_attrib pop ax call fix_attrib mov dx,offset status_line_2 call print_cs mov al,'S' call alt_modes cmp al,'S' jnz DC_1 mov al,'T' DC_1: mov dl,al mov ah,02 int 21h mov dx,offset status_line_3 call print_cs mov dx,offset status_line_help mov ah,9 int 21h ;print mess w/no crlf call restore_cur pop cursor ret screen_buffer_1 label word org $+1760*2+2 screen_buffer_2 label word org $+1760*2+2 paste_buffer label byte org $+1760*2+2 end_of_code label byte cseg ends end start