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some tty updates

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Add a note about NO_TERMS to include/wintty.h for clarity.

Rename tty_startup and tty_shutdown to term_startup() and
term_shutdown(). They are found in termcap.c for !NO_TERMS
like most of the other term_ routines, as well as having
versions for several of the NO_TERMS platforms. They aren't
part of the tty_interface called from the core. The tty
implementation does call and rely on them.

Remove some conditional #ifdef's around term_shutdown()
(formerly tty_shutdown()) and just ensure that all the
tty platforms have an implementation that they can link
with, even if it is just a stub presently.

Put the protype for nethack_exit in extern.h to reduce
maintenance to a single spot, and remove it from other
locations. A warning in the msdos cross-compile led to
this change.
This commit is contained in:
nhmall
2025-01-04 19:01:34 -05:00
parent 7982c72e8b
commit 37758c7e48
18 changed files with 293 additions and 100 deletions
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sys/msdos/vidtxt.c
+67
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@@ -38,6 +38,14 @@ extern int attrib_gr_normal; /* graphics mode normal attribute */
extern int attrib_text_intense; /* text mode intense attribute */
extern int attrib_gr_intense; /* graphics mode intense attribute */
#if defined(SCREEN_BIOS) && !defined(PC9800)
static unsigned char cursor_info = 0,
cursor_start_scanline = 6, cursor_end_scanline = 7;
static void get_cursinfo(unsigned char *start, unsigned char *end,
unsigned char *flg);
#endif
void
txt_get_scr_size(void)
{
@@ -80,6 +88,7 @@ txt_get_scr_size(void)
LI = regs.h.dl + 1;
CO = regs.h.ah;
#endif /* PC9800 */
}
@@ -260,6 +269,9 @@ txt_startup(int *wid, int *hgt)
attrib_gr_normal = attrib_text_normal;
attrib_gr_intense = attrib_text_intense;
g_attribute = attrib_text_normal; /* Give it a starting value */
get_cursinfo(&cursor_start_scanline,
&cursor_end_scanline,
&cursor_info);
}
/*
@@ -400,6 +412,61 @@ void txt_get_cursor(int *x, int *y)
(void) int86(VIDEO_BIOS, &regs, &regs); /* Get Cursor Position */
*x = regs.h.dl;
*y = regs.h.dh;
if (!cursor_info) {
cursor_start_scanline = regs.h.ch;
cursor_end_scanline = regs.h.cl;
cursor_info = 1;
}
}
void txt_hide_cursor(void)
{
union REGS regs;
regs.x.dx = 0;
regs.h.ah = SETCURTYP; /* set cursor type */
regs.h.ch = 0x3F; /* starting scanline */
regs.h.cl = 0; /* ending scanline */
regs.x.bx = 0;
(void) int86(VIDEO_BIOS, &regs, &regs);
}
void txt_show_cursor(void)
{
union REGS regs;
regs.x.dx = 0;
regs.h.ah = SETCURTYP; /* set cursor type */
if (cursor_info) {
regs.h.ch = cursor_start_scanline; /* starting scanline */
regs.h.cl = cursor_end_scanline; /* ending scanline */
} else {
regs.h.ch = 6; /* starting scanline */
regs.h.cl = 7; /* ending scanline */
}
regs.x.bx = 0;
(void) int86(VIDEO_BIOS, &regs, &regs);
}
static void
get_cursinfo(uchar *start, uchar *end, uchar *flg)
{
union REGS regs;
regs.x.dx = 0;
regs.h.ah = GETCURPOS; /* get cursor position */
regs.x.cx = 0;
regs.x.bx = 0;
(void) int86(VIDEO_BIOS, &regs, &regs); /* Get Cursor Position */
if (regs.h.ch != 0x3f) {
*start = regs.h.ch;
*end = regs.h.cl;
} else {
*start = 6;
*end = 7;
}
*flg = 1;
}
#endif /* SCREEN_BIOS && !PC9800 */