- separated curses.c out into separate source files to optimise

library use later on
- some small mods to existing functions

src/hci/mucurses/core.c

@@ -0,0 +1,95 @@
+#include <curses.h>
+#include "core.h"
+
+WINDOW _stdscr = {
+	.attrs = A_DEFAULT,
+	.ori_y = 0,
+	.ori_x = 0,
+	.curs_y = 0,
+	.curs_x = 0,
+	.scr = curscr,
+};
+
+struct _softlabelkeys *slks;
+
+/*
+ *  Primitives
+ */
+
+/**
+ * Write a single character rendition to a window
+ *
+ * @v *win	window in which to write
+ * @v ch	character rendition to write
+ * @v wrap	wrap "switch"
+ */
+void _wputch ( WINDOW *win, chtype ch, int wrap ) {
+	/* make sure we set the screen cursor to the right position
+	   first! */
+	win->scr->movetoyx( win->scr, win->ori_y + win->curs_y,
+				      win->ori_x + win->curs_x );
+	win->scr->putc(win->scr, ch);
+	if ( ++(win->curs_x) == win->width ) {
+		if ( wrap == WRAP ) {
+			win->curs_x = 0;
+			/* specification says we should really scroll,
+			   but we have no buffer to scroll with, so we
+			   can only overwrite back at the beginning of
+			   the window */
+			if ( ++(win->curs_y) == win->height )
+				win->curs_y = 0;
+		} else {
+			(win->curs_x)--;
+		}
+	}
+}
+
+/**
+ * Write a chtype string to a window
+ *
+ * @v *win	window in which to write
+ * @v *chstr	chtype string
+ * @v wrap	wrap "switch"
+ * @v n		write at most n chtypes
+ */
+void _wputchstr ( WINDOW *win, const chtype *chstr, int wrap, int n ) {
+	for ( ; *chstr && n-- ; chstr++ ) {
+		_wputch(win,*chstr,wrap);
+	}
+}
+
+/**
+ * Write a standard c-style string to a window
+ *
+ * @v *win	window in which to write
+ * @v *str	string
+ * @v wrap	wrap "switch"
+ * @v n		write at most n chars from *str
+ */
+void _wputstr ( WINDOW *win, const char *str, int wrap, int n ) {
+	for ( ; *str && n-- ; str++ ) {
+		_wputch( win, *str | win->attrs, wrap );
+	}
+}
+
+/**
+ * Move a window's cursor to the specified position
+ *
+ * @v *win	window to be operated on
+ * @v y		Y position
+ * @v x		X position
+ * @ret rc	return status code
+ */
+int wmove ( WINDOW *win, int y, int x ) {
+	/* chech for out-of-bounds errors */
+	if ( ( ( (unsigned)x - win->ori_x ) > win->width ) ||
+	     ( ( (unsigned)y - win->ori_y ) > win->height ) ) {
+		return ERR;
+	}
+
+	win->curs_y = y;
+	win->curs_x = x;
+	win->scr->movetoyx( win->scr, win->ori_y + win->curs_y, 
+			    	      win->ori_x + win->curs_x );
+	return OK;
+}