Hi ,
I have one buffer size is 50 bytes and reading 50 byte data from file
unsigned char bufffer[50];
read(fd,buffer,50); // Consider each byte numerical is value is zero.
printf("@@%s@@",buffer); // Here i will get @@@@ only.
But I want @@(50 zero)@@ as output(i have to use %c or %s only). If 25th byte numerical value is zero. It will print only 25 bytes only but i want print entire buffer if it has null terminal(ZERO) middle of the buffer also)
Any help !!
Hi i am new
I have two c prgorams as yuva.c & raj.c
For this how i create make file
please help me
Thanks
Yuvaraj R
Thanks for your people helping
Thanks
Yuvaraj.R
Hi I have doubt . Can we return the some data from boolean Function in C
For Example
bool add( int a, int b)
{
int C;
C = a + b;
return C;
}Is it possible in C
FGS_GetCurrentKeyCode() means some driver library function in set top box.
if i press the keys ,while running the game that time snake did not move according to the key directions..
Once game is over . Then it takes the key value and move according to the pressed key direction when i am running snake game again.
Please help me
Thanks
Yuvaraj.R
Hi friends i am doing the snake game program for Set top Box . I am Facing problem when i get the remote control keys.
if i press the up,down,right,left keys when program is running ,program does not response .once game is over then it is taking the values from keys.
Please help to solve this problem
Note : i am getting the keys through the MENU_GameKeys function,
and game starts at runsnake function
I post some parts of code here.........
Advance thanks for helping
/********************** Yuvaraj ***************************************/
#include "ftypes.h"
#include "fd_lib\fd_ir.h "
#include <stdio.h>
#include "fm_lib\fm_debug.h"
#include "rtos_lib\rtos_lib.h"
#include "ffs_lib\ffs_lib.h"
#include "app_menu.h"
#include "app_satellites.h"
#include "key_input.h "
#include "sys_api.h"
#include "utils.h"
#include "config.h"
#include "fgs.h"
#include "app_menu.h"
int data =4;
/***************** Local Data Declaration *****************************/
enum
{
MENU_GAME_ID_TITLE = 0,
MENU_GAME_ID_LIST,
MENU_GAME_ID_HELPLIST,
MENU_GAME_ID_REST,
MENU_GAME_ID_RUN,
};
typedef struct
{
FD_HANDLE pnlHdl;
FD_HANDLE listHdl;
FD_HANDLE listHelpHdl;
FD_HANDLE levelItemHdl;
FGS_PANEL_MEMBER_S* pItemBorder;
FD_HANDLE runItemHdl;
FGS_POS_S itemBorderPos;
U8 helpStrWidth;
} MENU_GAME_INST_S;
FSTATIC MENU_GAME_INST_S* menuGameDat = NULL;
#define MENU_GAME_WIDTH 600
/**************************************Local Functions *********************/
startagain1();
int runsnake();
int sntargetinit(int x, int y, int dataget, U16 *temp1, U16 *temp2, int mazev, int snlen1, int levelv, int check);
int snakefailed( U16 *xx, U16 *yy, int snlen1);
int snmovefn();
int getKeypadKey1(void);
U8 getPressedKey1(void);
void pausekey();
void resumekey();
FERR MENU_GameInit (void);
FBOOL MENU_GameEntry (FD_HANDLE h, FBOOL test);
FSTATIC FBOOL MENU_GameBuild( FD_HANDLE h );
FSTATIC void MENU_GameonFocusSet (FD_HANDLE h, FBOOL hasFocus);
FSTATIC FBOOL MENU_GameLeave (FD_HANDLE h, FBOOL force);
FSTATIC FBOOL MENU_GameKeys (FD_HANDLE h);
FERR MENU_Run(FD_HANDLE h);
FSTATIC void MENU_GameGetDescrItem (FD_HANDLE h, S32 id, U32 index,
FGS_ITEMSTATE_E state, FGS_ITEM_S* item);
FSTATIC void MENU_GameGetItem (FD_HANDLE h, S32 id, U32 index,FGS_ITEMSTATE_E state, FGS_ITEM_S* item);
FSTATIC void MENU_GameGetHelpDescrItem (FD_HANDLE h, S32 id, U32 index,
FGS_ITEMSTATE_E state,
FGS_ITEM_S* item);
FSTATIC FBOOL MENU_GameOnSelect (FD_HANDLE h, S32 itemId);
/********************************Intiliaze the Game **********/
FERR MENU_GameInit (void)
{
if ( menuGameDat != NULL )
return FD_ERR_ALREADY_INITIALIZED;
menuGameDat = RTOS_MemoryAllocate((RTOS_Size)sizeof(MENU_GAME_INST_S), FTRUE);
if ( menuGameDat == NULL )
return FD_ERR_OUT_OF_MEMORY;
RTOS_MemorySet(menuGameDat, 0, sizeof(MENU_GAME_INST_S));
menuMainDat->helpStrWidth = OSD_GetStrWidth (OSD_GetStr(STR_ENTRY_OK), -1, OSD_FONT_SYMBOL);
return FD_OK;
}
/********************************** Entry for Game ********************************/
FBOOL MENU_GameEntry (FD_HANDLE h, FBOOL test)
{
MENU_GAME_INST_S* inst = menuGameDat;
U32 lastFocusItem;
if ( test == FTRUE ) return FTRUE;
MENU_GameBuild((FD_HANDLE)inst);
if ( MENUSTACK_GetData(&lastFocusItem) == FFALSE )
{
lastFocusItem = 0;
}
// set list focus on first item *
FGS_LIST_SetMemberFocus (inst->listHdl, lastFocusItem);
FGS_PANEL_SetMemberFocus (inst->pnlHdl, MENU_GAME_ID_LIST);
MENUSTACK_FocusClaim (MENUID_GAME);
FGS_PANEL_Show (inst->pnlHdl, FFALSE); /* turn visibility on */
MENUSTACK_SetCleanup((MENUSTACK_CLEANUP)MENU_GameLeave, (FD_HANDLE)inst);
return FTRUE;
}
/********************************* Build Game Menu **********************************/
FSTATIC FBOOL MENU_GameBuild(FD_HANDLE h)
{
MENU_GAME_INST_S* inst = (MENU_GAME_INST_S*)h;
FGS_PANEL_OPEN_S pnlPars;
FGS_LIST_OPEN_S listPars;
FD_HANDLE itemHdl;
FGS_BOX_OPEN_S boxPars;
FGS_ITEM_TXT_OPEN_S txtPars;
FGS_LNAVI_OPEN_S naviPars;
FGS_STRING_S boxStr;
FGS_POS_S itemPos;
FGS_ITEM_S item;
FGS_POS_S valuePos;
FGS_POS_S descrPos;
FERR retVal;
U16 helpWidth;
U16 stackedFrameWidth;
U16 menuHeight=700;
U32 numLines =12;
U8 numHelpLines=6;
FGS_PANEL_MEMBER_S member;
U16 idCnt;
U16 midPos;
RTOS_MemorySet(&pnlPars, 0, sizeof(pnlPars));
RTOS_MemorySet(&naviPars, 0, sizeof(naviPars));
RTOS_MemorySet(&listPars, 0, sizeof(listPars));
RTOS_MemorySet(&boxPars, 0, sizeof(boxPars));
RTOS_MemorySet(&txtPars, 0, sizeof(txtPars));
RTOS_MemorySet(&boxStr, 0, sizeof(boxStr));
RTOS_MemorySet(&item, 0, sizeof(item));
RTOS_MemorySet(&itemPos, 0, sizeof(itemPos));
RTOS_MemorySet(&descrPos, 0, sizeof(descrPos));
RTOS_MemorySet(&valuePos, 0, sizeof(valuePos));
RTOS_MemorySet(&member, 0, sizeof(member));
helpWidth = 0;
stackedFrameWidth = (MENUSTACK_GetLevel() - 1) *
(STACKED_FRAME_DIST + OUTER_FRAME_WIDTH);
menuHeight = stackedFrameWidth + (2*OUTER_FRAME_WIDTH) +
(2*TITLE_TB_PADDING) + TITLE_LINE_HEIGHT +
MAIN_TOP_PADDING + MAIN_BOT_PADDING +
( numLines * LIST_LINE_HEIGHT) +
((numLines - 1 ) * LIST_LINE_PADDING) +
( numHelpLines * HELP_LINE_HEIGHT) +
((numHelpLines -1)* HELP_LINE_PADDING) +
(2*HELP_TB_PADDING) + (2*INNER_FRAME_WIDTH);
do
{
pnlPars.pos.width = MENU_GAME_WIDTH + helpWidth +
2*OUTER_FRAME_WIDTH +
INNER_FRAME_WIDTH +
stackedFrameWidth;
pnlPars.pos.height = menuHeight;
pnlPars.bkgrType = OSD_PNLTYPE_MENUWTITLEWBOTHELP0 + numHelpLines;
pnlPars.onFocusSet = MENU_GameonFocusSet;
pnlPars.onFocusSetArg = (FD_HANDLE)inst;
pnlPars.pInst = &(appDat->pnlInst);
MENU_CommonSetPanelPos(&(pnlPars.pos));
retVal = FGS_PANEL_Open(&pnlPars, MENUID_GAME, &(inst->pnlHdl));
if ( retVal != FD_OK ) break;
/* ----- create textbox holding title ------------------------------ */
retVal = MENU_CommonAddTitle(OSD_GetStr(STR_TITLE_GAME),
MENU_GAME_ID_TITLE,
inst->pnlHdl, pnlPars.pos.width,
stackedFrameWidth);
if ( retVal != FD_OK ) break;
/* ----- create list ----------------------------------------------- */
listPars.pos.x = OUTER_FRAME_WIDTH +
stackedFrameWidth;
listPars.pos.y = OUTER_FRAME_WIDTH +
INNER_FRAME_WIDTH +
MAIN_TOP_PADDING +
(2*TITLE_TB_PADDING) +
TITLE_LINE_HEIGHT +
8*LIST_LINE_HEIGHT +
2*LIST_LINE_PADDING +
stackedFrameWidth;
listPars.pos.width = MENU_GAME_WIDTH;
listPars.pos.height = numLines * (LIST_LINE_HEIGHT+LIST_LINE_PADDING);
listPars.pos.alignment = FGS_ALIGN_HOR_LEFT | FGS_ALIGN_VER_TOP;
listPars.bkgrType = OSD_LSTITEM_BKGR_HELP;
listPars.topDownOriented = FTRUE;
listPars.wraparound = FTRUE;
listPars.getDescrItem = MENU_GameGetDescrItem;
listPars.getDescrItemArg = (FD_HANDLE)inst;
listPars.getItem = MENU_GameGetItem;
listPars.getItemArg = (FD_HANDLE)inst;
listPars.onSelect = MENU_GameOnSelect;
listPars.onSelectArg = (FD_HANDLE)inst;
listPars.pInst = &(appDat->listInst);
retVal = FGS_LIST_Open (&listPars, MENU_GAME_ID_LIST, inst->pnlHdl,
&(inst->listHdl));
if ( retVal != FD_OK ) break;
/* ----------------------------------------------------------------- */
itemPos.x = 0;
itemPos.y = 0;
itemPos.width = MENU_GAME_WIDTH;
itemPos.height = LIST_LINE_HEIGHT;
itemPos.alignment = FGS_ALIGN_HOR_LEFT | FGS_ALIGN_VER_TOP;
/* position of list item descriptors in list entry */
descrPos.x = MAIN_LEFT_PADDING;
descrPos.y = 0;
descrPos.width = (((itemPos.width - MAIN_LEFT_PADDING - MAIN_RIGHT_PADDING) * 1 )>>1);
descrPos.height = LIST_LINE_HEIGHT;
descrPos.alignment = FGS_ALIGN_HOR_LEFT | FGS_ALIGN_VER_TOP;
/* position of list item values in list entry */
valuePos.x = descrPos.x + descrPos.width;
valuePos.y = descrPos.y;
valuePos.width = itemPos.width - descrPos.width -
MAIN_LEFT_PADDING - MAIN_RIGHT_PADDING;
valuePos.height = OSD_LISTLINE_HEIGHT;
valuePos.alignment = FGS_ALIGN_HOR_LEFT | FGS_ALIGN_VER_TOP;
/* ----- menu lines -------------------------------------------------*/
txtPars.bkgrType = OSD_LSTITEM_BKGR_NORMAL;
txtPars.descrPos = descrPos;
txtPars.valuePos = valuePos;
txtPars.pos = itemPos;
/* ----- create Service list --------------------------------------- */
boxPars.pos.x = OUTER_FRAME_WIDfor(i=0;i<5;i++)
{
for(j=0;j<=i;j++)
{
printf("*\n");
}
}
for(i=0;i<5;i++)
{
for(j=0;j<=i;j++)
{
printf("*\n");
}
}
hi gues am new to embedded c,i wrote programm to addition of two numbers
but i didn't get the result....
I don't what is the wrong in my code
my code is:
include <reg51.h>
#include <stdio.h> extern unsigned int getnumber (void);
extern void output (unsigned int);
void main (void)
{
unsigned int number1, number2;
bit operation;
SCON = 0x50;
TMOD = 0x20;
TR1 = 1;
T1 = 1;
TH1 = 221;
printf ("hi yuvaraj");
while (1) {
number1 = getnumber ();
number2 = getnumber ();
printf ("Input operation: '+' (ADD) or '-' (SUB) ? ");
operation = (getchar () == '+');
output (operation ? (number1 + number2) /* perform operation */ : (number1 - number2) );
}
}
please help me
Hi i am also new to C
I think ans may be
X=2, Y=8,z=61
Above answer is exactly correct ............
please follow that one...........
vi editor
emacs editor
one more is there
movi a ,#2 ; immediately move 2 to accumulator
mov b,a ; move accumulator to b Reg
mvi a, #4 :immediately move 4 to accumulator
add b ; add a & b
hi try this one
#include<iostream>
using namespace std;
class employee
{
int Id_no,No_days,age;
float salary;
char first_name[5],depat[5],gen[4],material[6];
public:
void capturenewemployee();
void employeedetails();
void searchemployee();
};
void employee :: capturenewemployee(void)
{
cout << "enter the firstname" << "\n" ;
cin >> first_name ;
cout << " enter age " << "\n" ;
cin >> age;
cout << " enter the Id_no" << "\n" ;
cin >> Id_no ;
cout << " enter the department " << "\n" ;
cin >> depat ;
cout <<" enter the gender" << "\n" ;
cin >> gen ;
cout << " enter material status" << "\n" ;
cin >> material ;
cout << " enter the No_days " << "\n" ;
cin >> No_days;
cout << " enter the salary" << "\n";
cin >> salary ;
}
void employee :: employeedetails(void)
{
cout <<" display result" << "\n";
cout << first_name << "\n";
cout << age << "\n";
cout << Id_no << "\n";
cout << depat << "\n";
cout << gen << "\n";
cout << material << "\n";
cout << No_days << "\n";
cout << salary << "\n";
}
void employee :: searchemployee(void)
{
cout <<" search result"<< "\n";
cout << first_name << "\n";
cout << age …
#include<stdio.h>
main()
{
int nu,i;
printf("enter the number");
scanf("%d",&nu);
for(i=0;i<=nu;i++)
{
printf("* \t");
}
printf("\n");
}
~
#include<stdio.h>
main()
{
int nu,i;
printf("enter the number");
scanf("%d",&nu);
for(i=0;i<=nu;i++)
{
printf("* \t");
}
printf("\n");
}
~
int sec_code;
printf("enter the sec_code");
scanf("%d",&sec_code);
while(sec_ocde < 0 && sec_code > 4 )
{
printf("invalid Sec_code \n please enter between 1 to 4 ");
}
Thank you
where can i download free embedded c compiler......for linux OS
Hi friends i am new to embedded domain. I would like to learn embedded C ,..
Where i get free books to learn embedded C..........
and whre i get free compilers to execute embedded c programms..........
I am using linux os..............
please help me.................
Advance Thanks for helping