new: LCD hd44780 read support added

share/parts/LCD_hd44780/LCD_hd44780_o.map

@@ -11,7 +11,7 @@
 <area shape="rect" coords="35,229,54,278" href="F2" />
 <area shape="rect" coords="65,229,84,278" href="F3" />
 <area shape="rect" coords="95,229,114,278" href="P1" />
-<area shape="rect" coords="125,229,144,278" href="F4" />
+<area shape="rect" coords="125,229,144,278" href="P11" />
 <area shape="rect" coords="155,229,174,278" href="P2" />
 <area shape="rect" coords="185,229,204,278" href="P3" />
 <area shape="rect" coords="217,229,236,278" href="P4" />

src/boards/board_ucsim.cc

@@ -51,7 +51,8 @@ static const char pinnames[3][40][10] = {
   "P1.0", "P1.1", "P1.2", "P1.3", "P1.4", "P1.5", "P1.6", "P1.7",
   "P2.0", "P2.1", "P2.2", "P2.3", "P2.4", "P2.5", "P2.6", "P2.7",
   "P3.0", "P3.1", "P3.2", "P3.3", "P3.4", "P3.5", "P3.6", "P3.7",
-  "RST","INT1","INT2", "INT3", "INT5","INT7", "GND", "VCC" }
+  "RST", "INT1", "INT2", "INT3", "INT5", "INT7", "GND", "VCC"
+ }
 };
 
 
@@ -191,10 +192,20 @@ board_ucsim::pins_reset(void)
      pins[p].oavalue = 0;
     }
 
-   //TODO
-   //VCC pins
-   //pins[6].value = 1;
-   //pins[19].value = 1;
+   if (procid == PID_C51)
+    {
+     pins[20 - 1].value = 0;
+     pins[20 - 1].dir = PD_OUT;
+     pins[40 - 1].value = 1;
+     pins[40 - 1].dir = PD_OUT;
+    }
+   else
+    {
+     pins[39 - 1].value = 0;
+     pins[39 - 1].dir = PD_OUT;
+     pins[40 - 1].value = 1;
+     pins[40 - 1].dir = PD_OUT;
+    }
   }
  else if (procid == PID_STM8S103)
   {
@@ -220,10 +231,10 @@ board_ucsim::pins_reset(void)
      pins[p].oavalue = 0;
     }
 
-   //TODO
-   //VCC pins
-   //pins[6].value = 1;
-   //pins[19].value = 1;
+   pins[7 - 1].value = 0;
+   pins[7 - 1].dir = PD_OUT;
+   pins[9 - 1].value = 1;
+   pins[9 - 1].dir = PD_OUT;
   }
 
 }
@@ -265,7 +276,7 @@ board_ucsim::MGetPinsValues(void)
 void
 board_ucsim::MStep(void)
 {
- unsigned char p[4];
+ unsigned short p[4];
 
  ucsim_step ();
 
@@ -278,7 +289,8 @@ board_ucsim::MStep(void)
   {
    if (*pins[i].port < 4)
     {
-     pins[i].value = (p[*pins[i].port] & (1 << pins[i].pord)) > 0;
+     pins[i].value = (p[*pins[i].port] & (0x0001 << pins[i].pord)) > 0;
+     pins[i].dir = (p[*pins[i].port] & (0x0100 << pins[i].pord)) > 0;
     }
   }
 

src/devices/lcd_hd44780.h

@@ -61,18 +61,22 @@ F 	0 = 5x7 dots 			1 = 5x10 dots
 BF  	0 = Can accept instruction  	1 = Internal operation in progress
 */
 
+#define LCD_ADDR_CGRAM 0
+#define LCD_ADDR_DDRAM 1 
 
 typedef struct
 {
 unsigned short int flags;
-unsigned char ddram_ad;
-unsigned char cgram_ad;  
+unsigned char addr_counter;
+unsigned char addr_mode;
 unsigned char update;   //redraw 
 unsigned int blinkc;    //blink count timer
 unsigned char blink;    //cursor state
 char shift;             //display shift
-char ddram[DDRMAX][5];
-char cgram[8][5];
+char ddram[DDRMAX][5];  //ddram font mapped
+char ddram_char[DDRMAX];//ddram 
+char cgram[8][5]; //cgram font mapped
+char cgram_char[8]; //cgram
 char bc;
 char buff;
 unsigned char cnum;     //number of columns 16 or 20
@@ -85,6 +89,10 @@ void lcd_cmd(lcd_t * lcd, char cmd);
 
 void lcd_data(lcd_t * lcd, char data);
 
+unsigned char lcd_read_busyf_acounter(lcd_t * lcd);
+
+char lcd_read_data(lcd_t * lcd);
+
 void lcd_rst(lcd_t * lcd);
 
 void lcd_init(lcd_t * lcd, unsigned char cnum, unsigned char lnum);

src/parts/part_LCD_hd44780.h

@@ -58,7 +58,7 @@ class cpart_LCD_hd44780:public part
       unsigned short get_out_id(char * name);
     private:
       void Reset(void);
-      unsigned char input_pins[10]; 
+      unsigned char input_pins[11]; 
       lcd_t lcd;
       int lcde;
       unsigned char model;