Simple Cursor Movement
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Hello, I am trying to make a cursor move across the screen on C, but I have no idea on how to make the sprite move. I made it display the sprite at 0,0. I don't know what to do or what code to use to move it. Help is appreciated.
Just create a couple of variables (x, y) and increase/decrease them when arrow key is pressed.
My fx-9860G & Prizm games
My fx-9860G graphic library, MonochromeLib
I don't know how to store variables properly and I don't know how to use the getKey.
You can use this function for key-detection.

About "store variables properly", it depends on what you want, you can make a struct Coord { int x, y; };
with a function like
Code:
void moveCursor(struct Coord* cursor) {
   if( keydown(KEY_PRGM_UP) && cursor->y>0) cursor->y--;
   if( keydown(KEY_PRGM_DOWN) && cursor->y<LCD_HEIGHT_PX) cursor->y++;
   if( keydown(KEY_PRGM_LEFT) && cursor->x>0) cursor->x--;
   if( keydown(KEY_PRGM_RIGHT) && cursor->x<LCD_WIDTH_PX) cursor->x++;
}
My fx-9860G & Prizm games
My fx-9860G graphic library, MonochromeLib
I suggest you go through a C tutorial somewhere to learn the basics of C, such as pointers, variables, loops, and such.
To answer your questions, you declare and store to variables like this:

Code:
int key = 0;

Then, to read a keypress, use one of the key input syscalls/routines such as GetKey() and PRGM_GetKey().

Code:
GetKey(&key);
CALCnet Tournament-38%


deviantArt
An additional note is that you need to erase the sprite before you move it, and redraw it afterwards. It would probably be way too slow to erase the the whole screen and re-drawing whatever you need.
How do I store the variables(x and y)? I'm not sure what code I should use. What order do I put the code?
Create the variables first, then use the function getkey.

It would be like:


Code:
int key = 0;
int x = 0;
int y = 0;

Getkey(&key);

If(key) {
If up
X++;

...
}


I don't know C, but I got this much reading this topic already.


There are two types of people in the world: those who can extrapolate data from incomplete data
what library are you using to display sprites, or is it for prizm?

EDIT: nvm. Dumb question Razz
Kerm, how would I clear the space behind it without refreshing the whole screen?

This is the code I am using:


Code:
#include "keyboard.hpp"
#include "color.h"
#include "display.h"
#include "keyboard_syscalls.h"

void CopySprite(const void* datar, int x, int y, int width, int height) { 
   color_t*data = (color_t*) datar; 
   color_t* VRAM = (color_t*)0xA8000000; 
   VRAM += LCD_WIDTH_PX*y + x; 
   for(int j=y; j<y+height; j++) { 
      for(int i=x; i<x+width; i++) { 
         *(VRAM++) = *(data++); 
     } 
     VRAM += LCD_WIDTH_PX-width; 
   } 
}
int PRGM_GetKey(){ 
  unsigned char buffer[12]; 
  PRGM_GetKey_OS( buffer ); 
  return ( buffer[1] & 0x0F ) * 10 + ( ( buffer[2] & 0xF0 ) >> 4 ); 
}

const char BigCursor[504] = {
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff
   };
int x = 0;
int y = 0;

void moveCursor(struct Coord* cursor) {
   if( keydown(KEY_PRGM_UP) && cursor->y>0) cursor->y--;
   if( keydown(KEY_PRGM_DOWN) && cursor->y<LCD_HEIGHT_PX) cursor->y++;
   if( keydown(KEY_PRGM_LEFT) && cursor->x>0) cursor->x--;
   if( keydown(KEY_PRGM_RIGHT) && cursor->x<LCD_WIDTH_PX) cursor->x++;
}

int main() {
  while(1) {
    int key = PRGM_GetKey();
    if(key == KEY_PRGM_MENU) {  GetKey(&key); }
    CopySprite(BigCursor, x, y, 12, 21);
    Bdisp_PutDisp_DD();
  }
  return 0;
}


This is what it gives me:


Code:
../..//bin/sh3eb-elf-gcc.exe -c -m3 -mb -O3 -mhitachi -Wall -nostdlib  -I../..//
include -lfxcg -lgcc -L../..//lib -std=c99 main.c -o main.o
main.c:49:24: warning: 'struct Coord' declared inside parameter list [enabled by
 default]
main.c:49:24: warning: its scope is only this definition or declaration, which i
s probably not what you want [enabled by default]
main.c: In function 'moveCursor':
main.c:50:4: warning: implicit declaration of function 'keydown' [-Wimplicit-fun
ction-declaration]
main.c:50:38: error: dereferencing pointer to incomplete type
main.c:50:51: error: dereferencing pointer to incomplete type
main.c:51:40: error: dereferencing pointer to incomplete type
main.c:51:65: error: dereferencing pointer to incomplete type
main.c:52:40: error: dereferencing pointer to incomplete type
main.c:52:53: error: dereferencing pointer to incomplete type
main.c:53:41: error: dereferencing pointer to incomplete type
main.c:53:65: error: dereferencing pointer to incomplete type
make: *** [main.o] Error 1


What can I do to fix it?
1. you never copied over PierottLL's keydown function into your source.

2. You need to define a struct for Coord:


Code:
struct Coord {
   int x;
   int y;
};


You can create a new one like:


Code:
Coord xy;
xy.x = 0;
xy.y = 0;


And feed it into the moveCursor routine like:


Code:
moveCursor(&cursor);



3. You really need to read a general tutorial on C before attempting any further Prizm add-in development. I commonly suggest this one: http://www.cprogramming.com/tutorial/c/lesson1.html
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I don't see PierottLL's keydown function. Where is it?

Edit: Nevermind. I found it.

Well, it compiled, but it doesn't move when I press the keys.



Code:
#include "keyboard.hpp"
#include "color.h"
#include "display.h"
#include "keyboard_syscalls.h"

void CopySprite(const void* datar, int x, int y, int width, int height) { 
   color_t*data = (color_t*) datar; 
   color_t* VRAM = (color_t*)0xA8000000; 
   VRAM += LCD_WIDTH_PX*y + x; 
   for(int j=y; j<y+height; j++) { 
      for(int i=x; i<x+width; i++) { 
         *(VRAM++) = *(data++); 
     } 
     VRAM += LCD_WIDTH_PX-width; 
   } 
}
int PRGM_GetKey(){ 
  unsigned char buffer[12]; 
  PRGM_GetKey_OS( buffer ); 
  return ( buffer[1] & 0x0F ) * 10 + ( ( buffer[2] & 0xF0 ) >> 4 ); 
}

const char BigCursor[504] = {
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff
   };
struct Coord {


   int x;


   int y;


};

int keydown(int basic_keycode)
{
   const unsigned short* keyboard_register = (unsigned short*)0xA44B0000;
   int row, col, word, bit;
   row = basic_keycode%10;
   col = basic_keycode/10-1;
   word = row>>1;
   bit = col + 8*(row&1);
   return (0 != (keyboard_register[word] & 1<<bit));
}


int x = 0;
int y = 0;

void moveCursor(struct Coord* cursor) {
   if( keydown(KEY_PRGM_UP) && cursor->y>0) cursor->y--;
   if( keydown(KEY_PRGM_DOWN) && cursor->y<LCD_HEIGHT_PX) cursor->y++;
   if( keydown(KEY_PRGM_LEFT) && cursor->x>0) cursor->x--;
   if( keydown(KEY_PRGM_RIGHT) && cursor->x<LCD_WIDTH_PX) cursor->x++;
}

int main() {
  while(1) {
    int key = PRGM_GetKey();
    if(key == KEY_PRGM_MENU) {  GetKey(&key); }
    CopySprite(BigCursor, x, y, 12, 21);
    Bdisp_PutDisp_DD();
  }
  return 0;
}
well, you still haven't declared a coordinate variable yet, and never call moveCursor. This should work:


Code:
int main() {
  Coord cur;
  cur.x = 0;
  cur.y = 0;
  while(1) {
    int key = PRGM_GetKey();
    if(key == KEY_PRGM_MENU) {  GetKey(&key); }
    moveCursor(&cur);
    CopySprite(BigCursor, cur.x, cur.y, 12, 21);
    Bdisp_PutDisp_DD();
  }
  return 0;
}


EDIT: and please don't brush off that suggestion to visit and read that C tutorial set; you really need to.
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It now says:

Code:
../..//bin/sh3eb-elf-gcc.exe -c -m3 -mb -O3 -mhitachi -Wall -nostdlib  -I../..//
include -lfxcg -lgcc -L../..//lib -std=c99 main.c -o main.o
main.c: In function 'main':
main.c:24:3: error: unknown type name 'Coord'
main.c:25:6: error: request for member 'x' in something not a structure or union

main.c:26:6: error: request for member 'y' in something not a structure or union

main.c:30:5: warning: implicit declaration of function 'moveCursor' [-Wimplicit-
function-declaration]
main.c:31:16: error: 'BigCursor' undeclared (first use in this function)
main.c:31:16: note: each undeclared identifier is reported only once for each fu
nction it appears in
main.c:31:30: error: request for member 'x' in something not a structure or unio
n
main.c:31:37: error: request for member 'y' in something not a structure or unio
n
main.c: At top level:
main.c:37:12: error: expected declaration specifiers or '...' before '&' token
main.c:88:6: warning: conflicting types for 'moveCursor' [enabled by default]
main.c:30:5: note: previous implicit declaration of 'moveCursor' was here
main.c:95:5: error: redefinition of 'main'
main.c:23:5: note: previous definition of 'main' was here
make: *** [main.o] Error 1


main.c:

Code:
#include "keyboard.hpp"
#include "color.h"
#include "display.h"
#include "keyboard_syscalls.h"

void CopySprite(const void* datar, int x, int y, int width, int height) { 
   color_t*data = (color_t*) datar; 
   color_t* VRAM = (color_t*)0xA8000000; 
   VRAM += LCD_WIDTH_PX*y + x; 
   for(int j=y; j<y+height; j++) { 
      for(int i=x; i<x+width; i++) { 
         *(VRAM++) = *(data++); 
     } 
     VRAM += LCD_WIDTH_PX-width; 
   } 
}
int PRGM_GetKey(){ 
  unsigned char buffer[12]; 
  PRGM_GetKey_OS( buffer ); 
  return ( buffer[1] & 0x0F ) * 10 + ( ( buffer[2] & 0xF0 ) >> 4 ); 
}

int main() { 
  Coord cur;
  cur.x = 0;
  cur.y = 0;
  while(1) { 
    int key = PRGM_GetKey(); 
    if(key == KEY_PRGM_MENU) {  GetKey(&key); } 
    moveCursor(&cur);
    CopySprite(BigCursor, cur.x, cur.y, 12, 21); 
    Bdisp_PutDisp_DD(); 
  } 
  return 0; 
}

moveCursor(&cursor);

const char BigCursor[504] = {
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff
   };
struct Coord {


   int x;


   int y;


};

int keydown(int basic_keycode)
{
   const unsigned short* keyboard_register = (unsigned short*)0xA44B0000;
   int row, col, word, bit;
   row = basic_keycode%10;
   col = basic_keycode/10-1;
   word = row>>1;
   bit = col + 8*(row&1);
   return (0 != (keyboard_register[word] & 1<<bit));
}


int x = 0;
int y = 0;

void moveCursor(struct Coord* cursor) {
   if( keydown(KEY_PRGM_UP) && cursor->y>0) cursor->y--;
   if( keydown(KEY_PRGM_DOWN) && cursor->y<LCD_HEIGHT_PX) cursor->y++;
   if( keydown(KEY_PRGM_LEFT) && cursor->x>0) cursor->x--;
   if( keydown(KEY_PRGM_RIGHT) && cursor->x<LCD_WIDTH_PX) cursor->x++;
}

int main() {
  while(1) {
    int key = PRGM_GetKey();
    if(key == KEY_PRGM_MENU) {  GetKey(&key); }
    CopySprite(BigCursor, x, y, 12, 21);
    Bdisp_PutDisp_DD();
  }
  return 0;
}
well, the problem is that... you copied my new main function, and put it above the existing one, instead of removing the old one and putting that one in place instead. Also I notice you copied "moveCursor(&cursor); " above the "const char BigCursor[504] = {" line -- that needs to go too. Correct code:


Code:
#include "keyboard.hpp"
#include "color.h"
#include "display.h"
#include "keyboard_syscalls.h"

void CopySprite(const void* datar, int x, int y, int width, int height) {   
   color_t*data = (color_t*) datar;   
   color_t* VRAM = (color_t*)0xA8000000;   
   VRAM += LCD_WIDTH_PX*y + x;   
   for(int j=y; j<y+height; j++) {   
      for(int i=x; i<x+width; i++) {   
         *(VRAM++) = *(data++);   
     }   
     VRAM += LCD_WIDTH_PX-width;   
   }   
}
int PRGM_GetKey(){   
  unsigned char buffer[12];   
  PRGM_GetKey_OS( buffer );   
  return ( buffer[1] & 0x0F ) * 10 + ( ( buffer[2] & 0xF0 ) >> 4 );   
}

const char BigCursor[504] = {
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff
   };
struct Coord {


   int x;


   int y;


};

int keydown(int basic_keycode) 
{ 
   const unsigned short* keyboard_register = (unsigned short*)0xA44B0000; 
   int row, col, word, bit; 
   row = basic_keycode%10; 
   col = basic_keycode/10-1; 
   word = row>>1; 
   bit = col + 8*(row&1); 
   return (0 != (keyboard_register[word] & 1<<bit)); 
}

void moveCursor(struct Coord* cursor) { 
   if( keydown(KEY_PRGM_UP) && cursor->y>0) cursor->y--; 
   if( keydown(KEY_PRGM_DOWN) && cursor->y<LCD_HEIGHT_PX) cursor->y++; 
   if( keydown(KEY_PRGM_LEFT) && cursor->x>0) cursor->x--; 
   if( keydown(KEY_PRGM_RIGHT) && cursor->x<LCD_WIDTH_PX) cursor->x++; 
}

int main() {   
  Coord cur; 
  cur.x = 0; 
  cur.y = 0; 
  while(1) {   
    int key = PRGM_GetKey();   
    if(key == KEY_PRGM_MENU) {  GetKey(&key); }   
    moveCursor(&cur); 
    CopySprite(BigCursor, cur.x, cur.y, 12, 21);   
    Bdisp_PutDisp_DD();   
  }   
  return 0;   
}
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Now it says:


Code:
../..//bin/sh3eb-elf-gcc.exe -c -m3 -mb -O3 -mhitachi -Wall -nostdlib  -I../..//
include -lfxcg -lgcc -L../..//lib -std=c99 main.c -o main.o
main.c: In function 'main':
main.c:80:3: error: unknown type name 'Coord'
main.c:81:6: error: request for member 'x' in something not a structure or union

main.c:82:6: error: request for member 'y' in something not a structure or union

main.c:86:5: warning: passing argument 1 of 'moveCursor' from incompatible point
er type [enabled by default]
main.c:72:6: note: expected 'struct Coord *' but argument is of type 'int *'
main.c:87:30: error: request for member 'x' in something not a structure or unio
n
main.c:87:37: error: request for member 'y' in something not a structure or unio
n
make: *** [main.o] Error 1


This is with your code, Ashbad.
Try this.


Code:
#include "keyboard.hpp" 
#include "color.h" 
#include "display.h" 
#include "keyboard_syscalls.h" 

void CopySprite(const void* datar, int x, int y, int width, int height) {   
   color_t*data = (color_t*) datar;   
   color_t* VRAM = (color_t*)0xA8000000;   
   VRAM += LCD_WIDTH_PX*y + x;   
   for(int j=y; j<y+height; j++) {   
      for(int i=x; i<x+width; i++) {   
         *(VRAM++) = *(data++);   
     }   
     VRAM += LCD_WIDTH_PX-width;   
   }   
} 
int PRGM_GetKey(){   
  unsigned char buffer[12];   
  PRGM_GetKey_OS( buffer );   
  return ( buffer[1] & 0x0F ) * 10 + ( ( buffer[2] & 0xF0 ) >> 4 );   
} 

const char BigCursor[504] = { 
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
      0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0x00,0xff,0xff,
      0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff
   }; 
struct Coord { 


   int x; 


   int y; 


}; 

int keydown(int basic_keycode)   
{   
   const unsigned short* keyboard_register = (unsigned short*)0xA44B0000;   
   int row, col, word, bit;   
   row = basic_keycode%10;   
   col = basic_keycode/10-1;   
   word = row>>1;   
   bit = col + 8*(row&1);   
   return (0 != (keyboard_register[word] & 1<<bit));   
} 

void moveCursor(struct Coord* cursor) {   
   if( keydown(KEY_PRGM_UP) && cursor->y>0) cursor->y--;   
   if( keydown(KEY_PRGM_DOWN) && cursor->y<LCD_HEIGHT_PX) cursor->y++;   
   if( keydown(KEY_PRGM_LEFT) && cursor->x>0) cursor->x--;   
   if( keydown(KEY_PRGM_RIGHT) && cursor->x<LCD_WIDTH_PX) cursor->x++;   
} 

int main() {   
  struct Coord cur;   
  cur.x = 0;   
  cur.y = 0;   
  while(1) {   
    int key = PRGM_GetKey();   
    if(key == KEY_PRGM_MENU) {  GetKey(&key); }   
    moveCursor(&cur);   
    CopySprite(BigCursor, cur.x, cur.y, 12, 21);   
    Bdisp_PutDisp_DD();   
  }   
  return 0;   
}
R O F L M A O
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Well, now it works, but it leaves a trail. How will we fix this?
You'll have to clear the screen. The easy way to do it for now:


Code:
Bdisp_AllCr_VRAM();


put it after this line:


Code:
Bdisp_PutDisp_DD();
R O F L M A O
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If I wanted to add a background image behind it, where would I put the display code?

I know it would be inside of:

Code:
int main() {     
  struct Coord cur;   
  cur.x = 0;   
  cur.y = 0;   
  while(1) {     
    int key = PRGM_GetKey();     
    if(key == KEY_PRGM_MENU) {  GetKey(&key); }     
    moveCursor(&cur);   
    CopySprite(BigCursor, cur.x, cur.y, 12, 21);     
    Bdisp_PutDisp_DD();     
  }     
  return 0;     
}
  
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