fix font handling

BaS_gcc/bas.lk.in

@@ -97,6 +97,7 @@ SECTIONS
                 OBJDIR/fbmem.o(.text)
                 OBJDIR/fbmon.o(.text)
                 OBJDIR/fbmodedb.o(.text)
+		OBJDIR/fnt_st_8x16.o(.text)
                 OBJDIR/offscreen.o(.text)
 
                 OBJDIR/x86emu.o(.text)

BaS_gcc/include/font.h

@@ -95,6 +95,6 @@ struct font_head {
 void font_init(void);           /* initialize BIOS font ring */
 void font_set_default(void);    /* choose the default font */
 
-extern const struct font_head *fnt_st_8x16;
+extern struct font_head *fnt;
 
 #endif /* FONT_H */

BaS_gcc/util/bas_string.c

@@ -34,6 +34,16 @@ void *memcpy(void *dst, const void *src, size_t n)
     return dst;
 }
 
+void *memmove(void *dst, const void *src, size_t n)
+{
+    uint8_t *to = dst;
+
+    while (to < (uint8_t *) dst + n)
+        *to++ = * (uint8_t *) src++;
+
+    return dst;
+}
+
 void bzero(void *s, size_t n)
 {
     size_t i;

BaS_gcc/util/conout.c

@@ -19,15 +19,29 @@
 
 #define  plane_offset   2       /* interleaved planes */
 
-#define v_fnt_st fnt_st_8x16->first_ade
-#define v_fnt_nd fnt_st_8x16->last_ade
-#define v_off_ad fnt_st_8x16->off_table
+#define v_fnt_st fnt->first_ade
+#define v_fnt_nd fnt->last_ade
+#define v_off_ad fnt->off_table
 #define v_bas_ad info_fb->screen_base
 
 uint8_t *v_cur_ad;              /* cursor address */
 int8_t v_stat_0;                /* console status byte */
 uint16_t v_cur_cx;
 uint16_t v_cur_cy;
+int8_t v_cur_tim;
+uint16_t v_cel_mx;
+uint16_t v_cel_my;
+uint16_t v_cel_wr;
+int16_t v_cur_of;
+uint16_t v_cel_ht;
+int8_t v_period;
+const uint16_t *v_fnt_ad;
+int16_t v_fbt_wr;
+int16_t v_col_bg;
+int16_t v_col_fg;
+uint16_t v_fnt_wr;
+
+
 const int16_t v_planes = 8;
 extern struct fb_info *info_fb;
 #define v_lin_wr (info_fb->var.width / 2) /* length of a screen line in words */

BaS_gcc/video/fnt_st_8x16.c

@@ -335,3 +335,5 @@ const struct font_head fnt_st_8x16 = {
     0,                  /* struct font * next_font */
     0                   /* UWORD next_seg */
 };
+
+struct font_head *fnt = &fnt_st_8x16;