/*
* Make sure the screen is displayed.
*/
static void
make_display(void)
{
/*
* If nothing is displayed yet, display starting from initial_scrpos.
*/
if (empty_screen()) {
if (initial_scrpos.pos == -1)
/*
* {{ Maybe this should be:
* jump_loc(ch_zero(), jump_sline);
* but this behavior seems rather unexpected
* on the first screen. }}
*/
jump_loc(ch_zero(), 1);
else
jump_loc(initial_scrpos.pos, initial_scrpos.ln);
} else if (screen_trashed) {
int save_top_scroll = top_scroll;
int save_ignore_eoi = ignore_eoi;
top_scroll = 1;
ignore_eoi = 0;
if (screen_trashed == 2) {
/*
* Special case used by ignore_eoi: re-open the input
* file and jump to the end of the file.
*/
reopen_curr_ifile();
jump_forw();
}
repaint();
top_scroll = save_top_scroll;
ignore_eoi = save_ignore_eoi;
}
}
/*
* Get command character.
* The character normally comes from the keyboard,
* but may come from ungotten characters
* (characters previously given to ungetcc or ungetsc).
*/
int
getcc(void)
{
if (unget_end) {
/*
* We have just run out of ungotten chars.
*/
unget_end = 0;
if (len_cmdbuf() == 0 || !empty_screen())
return (getchr());
/*
* Command is incomplete, so try to complete it.
*/
switch (mca) {
case A_DIGIT:
/*
* We have a number but no command. Treat as #g.
*/
return ('g');
case A_F_SEARCH:
case A_B_SEARCH:
/*
* We have "/string" but no newline. Add the \n.
*/
return ('\n');
default:
/*
* Some other incomplete command. Let user complete it.
*/
return (getchr());
}
}
if (ungot == NULL) {
/*
* Normal case: no ungotten chars, so get one from the user.
*/
return (getchr());
}
/*
* Return the next ungotten char.
*/
{
struct ungot *ug = ungot;
int c = ug->ug_char;
ungot = ug->ug_next;
free(ug);
unget_end = (ungot == NULL);
return (c);
}
}
void disable_APA() {
UINT8 i, blank = 0;
empty_screen();
for (i=0x00;i!=0xFF;++i) {
remove_VBL(i);
remove_LCD(i);
}
LCDC_REG = 0x18C0;
mode(0xE00);
}
