SparrowOSTS_121127.ISO
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Terry A. Davis authored and minexew committed
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@@ -0,0 +1,279 @@
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U0 RawDrawChar(I64 ch)
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{
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/* This is for RAW output during boot
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before the window mgr is running
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and for the debugger.
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See $LK,"GrUpdateForegroundOfText","MN:GrUpdateForegroundOfText"$ for
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the normal screen text output routine.
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See also $LK,"GrUpdateScreen","MN:GrUpdateScreen"$().
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*/
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Bool old_preempt=Preempt(OFF);
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I64 i,row,col;
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U8 *ptr,*ptr1,*ptr2;
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if (!(sys_raw_dc_flags&RDCF_SHOW_DOLLAR)) {
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if (ch=='$$') {
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if (sys_raw_dc_flags&RDCF_IN_DOLLAR) {
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sys_raw_dc_flags&=~RDCF_IN_DOLLAR;
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if (!(sys_raw_dc_flags & RDCF_LAST_DOLLAR)) {
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sys_raw_dc_flags&=~RDCF_LAST_DOLLAR;
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Preempt(old_preempt);
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return;
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}
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} else {
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sys_raw_dc_flags|=RDCF_IN_DOLLAR|RDCF_LAST_DOLLAR;
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Preempt(old_preempt);
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return;
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}
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}
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sys_raw_dc_flags&=~RDCF_LAST_DOLLAR;
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if (sys_raw_dc_flags&RDCF_IN_DOLLAR) {
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Preempt(old_preempt);
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return;
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}
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}
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if (ch==CH_TAB) {
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RawDrawChar(CH_SPACE);
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while (sys_raw_dc_col & 7)
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RawDrawChar(CH_SPACE);
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} else if (ch==CH_BACKSPACE) {
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sys_raw_dc_col--;
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RawDrawChar(CH_SPACE);
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sys_raw_dc_col--;
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} else if (ch==CH_NEW_LINE) {
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RawDrawChar(CH_SPACE);
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while (sys_raw_dc_col % text_cols)
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RawDrawChar(CH_SPACE);
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} else if (Bt(displayable_chars_bitmap,ch)) {
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row=sys_raw_dc_col/text_cols%text_rows;
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col=sys_raw_dc_col%text_cols;
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if (text_mode) {
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if (sys_raw_dc_flags&RDCF_SCROLL && sys_raw_dc_col && !row && !col) {
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MemCpy(VGA_TEXT_MEM_BASE,VGA_TEXT_MEM_BASE+text_cols,
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text_cols*(text_rows-1)*2);
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MemSet(VGA_TEXT_MEM_BASE+text_cols*(text_rows-1)*2,0,text_cols*2);
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sys_raw_dc_col-=text_cols;
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row=text_rows-1;
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}
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ptr=VGA_TEXT_MEM_BASE+(row*text_cols+col)*2;
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ptr[0]=ch;
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ptr[1]=BLACK<<4+WHITE;
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} else {
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OutU8(VGA_SC_INDEX,VGA_MAP_MASK);
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OutU8(VGA_SC_DATA,0x0F); //All planes -- WHITE
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if (sys_raw_dc_flags&RDCF_SCROLL && sys_raw_dc_col && !row && !col) {
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//Scroll cached image
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MemCpy(sys_dc_screen_image,sys_dc_screen_image+gr_width*FONT_HEIGHT>>3,
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gr_width*(gr_height-FONT_HEIGHT)>>3);
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MemSet(sys_dc_screen_image+gr_width*(gr_height-FONT_HEIGHT)>>3,0,gr_width*FONT_HEIGHT>>3);
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MemCpy(VGA_GRAPHIC_MEM_BASE,sys_dc_screen_image,gr_width*gr_height>>3);
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sys_raw_dc_col-=text_cols;
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row=text_rows-1;
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}
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PushFD;
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Cli;
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ptr=ptr1=col+row*gr_width;
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ptr+=VGA_GRAPHIC_MEM_BASE;
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ptr1+=sys_dc_screen_image; //Write to cached image as well
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ptr2=&gr_font[ch.u8[0]*FONT_HEIGHT];
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for (i=0;i<FONT_HEIGHT;i++) {
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*ptr=*ptr1=reverse_bits_table[*ptr2++];
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ptr+=gr_width>>3;
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ptr1+=gr_width>>3;
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}
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PopFD;
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}
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sys_raw_dc_col++;
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}
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Preempt(old_preempt);
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}
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U0 VGAFlush()
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{
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LBts(&sys_semas[SYS_SEMA_FLUSH_VGA_IMAGE],0);
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}
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U0 WinDerivedValsUpdate(CTask *task=NULL)
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{
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if (!task) task=Fs;
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//Assert: This is called with TASKLf_TASK_LOCK set
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PushFD;
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Cli;
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task->win_width =task->win_right-task->win_left+1;
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task->win_height=task->win_bottom-task->win_top+1;
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//Inside the Border
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task->win_pixel_left =FONT_WIDTH*task->win_left;
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task->win_pixel_right =FONT_WIDTH*(task->win_right+1)-1;
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task->win_pixel_width =task->win_pixel_right-task->win_pixel_left+1;
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task->win_pixel_top =FONT_HEIGHT*task->win_top;
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task->win_pixel_bottom=FONT_HEIGHT*(task->win_bottom+1)-1;
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task->win_pixel_height=task->win_pixel_bottom-task->win_pixel_top+1;
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//Outside the border
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if (Bt(&task->display_flags,DISPLAYf_NO_BORDER)) {
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task->win_border_pixel_left =task->win_pixel_left;
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task->win_border_pixel_right =task->win_pixel_right;
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task->win_border_pixel_top =task->win_pixel_top;
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task->win_border_pixel_bottom=task->win_pixel_bottom;
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} else {
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task->win_border_pixel_left =task->win_pixel_left-FONT_WIDTH;
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task->win_border_pixel_right =task->win_pixel_right+FONT_WIDTH;
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task->win_border_pixel_top =task->win_pixel_top-FONT_HEIGHT;
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task->win_border_pixel_bottom=task->win_pixel_bottom+FONT_HEIGHT;
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}
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PopFD;
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}
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Bool AKDRawDisplayPutKey(I64 ch,I64)
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{
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if (IsRaw) {
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RawDrawChar(ch);
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return TRUE;
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} else
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return FALSE;
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}
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Bool AKDRawDisplayPutS(U8 *st)
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{
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U8 ch;
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if (IsRaw) {
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while (ch=*st++)
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RawDrawChar(ch);
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return TRUE;
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} else
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return FALSE;
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}
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Bool AKDInputFilterPutKey(I64 ch,I64 scancode)
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{
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Bool old_preempt;
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if (Bt(&Fs->task_flags,TASKf_INPUT_FILTER_TASK)) {
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old_preempt=Preempt(OFF);
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Msg(MSG_KEY_DOWN,ch,scancode);
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Preempt(old_preempt);
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return TRUE;
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} else
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return FALSE;
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}
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Bool AKDInputFilterPutS(U8 *st)
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{
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U8 ch;
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Bool old_preempt;
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if (Bt(&Fs->task_flags,TASKf_INPUT_FILTER_TASK)) {
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old_preempt=Preempt(OFF);
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while (ch=*st++)
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Msg(MSG_KEY_DOWN,ch,0);
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Preempt(old_preempt);
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return TRUE;
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} else
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return FALSE;
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}
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U0 PutKey(I64 ch,I64 sc)
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{ //See $LK,"PutKeyHandling","FA:::/SparrowOS/Doc/KeyBoard.TXT.Z,PutKeyHandling"$
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CKeyDev *tempp=sys_put_key_root.next;
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if (!Bt(&Fs->display_flags,DISPLAYf_SILENT)) {
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if (sys_cur_scan_code & SCF_SCROLL) {
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if (sys_focus_task==Fs) {
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while (sys_cur_scan_code & SCF_SCROLL)
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Yield;
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}
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}
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while (tempp!=&sys_put_key_root) {
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if (!(sc & SCF_KEY_DESC) || tempp->flags & KDF_HAS_DESCS) {
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if ((*tempp->put_key)(ch,sc))
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break;
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}
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tempp=tempp->next;
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}
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}
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}
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U0 PutChar(I64 ch)
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{
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PutKey(ch,0);
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}
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U0 PutS(U8 *st)
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{ //See $LK,"PutKeyHandling","FA:::/SparrowOS/Doc/KeyBoard.TXT.Z,PutKeyHandling"$
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U8 ch,*ptr;
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Bool cont=TRUE;
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if (!st) return;
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CKeyDev *tempp=sys_put_key_root.next;
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if (!Bt(&Fs->display_flags,DISPLAYf_SILENT)) {
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if (sys_cur_scan_code & SCF_SCROLL) {
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if (sys_focus_task==Fs) {
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while (sys_cur_scan_code & SCF_SCROLL)
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Yield;
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}
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}
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while (cont && tempp!=&sys_put_key_root) {
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if (tempp->put_s) {
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if ((*tempp->put_s)(st))
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break;
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} else {
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ptr=st;
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while (ch=*ptr++)
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if ((*tempp->put_key)(ch,0))
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cont=FALSE;
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}
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tempp=tempp->next;
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}
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}
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}
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U0 SetKeyDesc(U8 *fmt,...)
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{
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I64 i;
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U8 *buf=SPrintFJoin(NULL,fmt,argc,argv);
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StrCpy(key_desc,buf);
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key_handler=Caller;
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Free(buf);
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for (i=0;i<5;i++)
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Yield; //This makes KeyMap work better
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}
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U0 SetCtrlAltLetCB(U8 ch,U0 (*fp_handler)(I64 sc),U8 *desc,Bool in_irq=FALSE)
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{
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ch=ToUpper(ch)-'A';
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if (ch<26) {
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fp_ctrl_alt_let_cbs[ch]=fp_handler;
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Free(ctrl_alt_let_descs[ch]);
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ctrl_alt_let_descs[ch]=AStrNew(desc);
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BEqu(&ctrl_alt_let_in_irq_flags,ch,in_irq);
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}
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}
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CKeyDev *KeyDevAdd(Bool (*fp_put_key)(I64 ch,I64 sc),Bool (*fp_puts)(U8 *st),I64 priority,Bool key_descs=FALSE)
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//Places hook in StdOut chain
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{ //See $LK,"PutKeyHandling","FA:::/SparrowOS/Doc/KeyBoard.TXT.Z,PutKeyHandling"$
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Bool old_preempt=Preempt(OFF);
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CKeyDev *tempp,*tempp1=sys_put_key_root.last;
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tempp=ACAlloc(sizeof(CKeyDev));
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tempp->put_key=fp_put_key;
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tempp->put_s=fp_puts;
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tempp->priority=priority;
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if (key_descs)
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tempp->flags|=KDF_HAS_DESCS;
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while (tempp1->priority>priority)
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tempp1=tempp1->last;
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QueIns(tempp,tempp1);
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Preempt(old_preempt);
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return tempp;
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}
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U0 KeyDevRem(CKeyDev *tempp)
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{
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Bool old_preempt=Preempt(OFF);
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QueRem(tempp);
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Preempt(old_preempt);
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Free(tempp);
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}
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