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Contains the source code from the course work throughout my undergraduate Computer Engineering degree at Brigham Young University. There is a mixture of Go, Python, C, C++, Java, VHDL, Verilog, Matlab, Bash, Assembly, etc..
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school/ecen427/vdma.c

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#include <stdio.h>
#include "platform.h"
#include "xparameters.h"
#include "xaxivdma.h"
#include "xio.h"
#include "time.h"
#include "unistd.h"
#include "xgpio.h" // Provides access to PB GPIO driver.
#include "mb_interface.h" // provides the microblaze interrupt enables, etc.
#include "xintc_l.h" // Provides handy macros for the interrupt controller.
#include "xac97_l.h"
#include "nes.h"
#include "global.h"
#include <xuartlite_l.h>
XGpio gpLED; // This is a handle for the LED GPIO block.
XGpio gpPB; // This is a handle for the push-button GPIO block.
#define DEBUG
#define FRAME_BUFFER_0_ADDR 0xC5000000 // Starting location in DDR where we will store the images that we display.
#define VOL_ATTN_MIN 0x0
#define VOL_ATTN_MAX 0x1f
Xuint32 vol_attn = 0x10;
int mytimer = 0;
int mycounter = 0;
int onesec;
int fifteenms;
int fivems;
int tenms;
int buttonValid;
int currentButtonState;
int speed = 30;
int holding;
int gameState = 1;
void increaseVolume() {
if((int)vol_attn > VOL_ATTN_MIN) {
vol_attn = vol_attn - 0x1;
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_MasterVol, vol_attn | (vol_attn << 8));
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_AuxOutVol, vol_attn | (vol_attn << 8));
}
}
void decreaseVolume() {
if((int)vol_attn < VOL_ATTN_MAX) {
vol_attn = vol_attn + 0x1;
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_MasterVol, vol_attn | (vol_attn << 8));
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_AuxOutVol, vol_attn | (vol_attn << 8));
}
}
void delayDying() {
int counter = 0;
while(counter < 500000){
counter++;
}
}
void setGameState(int mystate){
gameState = mystate;
}
unsigned int * framePointer = (unsigned int *) FRAME_BUFFER_0_ADDR;
void pb_interrupt_handler();
int isBottom(int value) {
short* aliens = getAliens();
if(value > 43) {
return 1;
}
if(value < 44 && value > 32) {
if(aliens[value+11] == 0) {
return 1;
}
else {
return 0;
}
}
if(value < 33 && value > 21) {
if(aliens[value+11] == 0 && aliens[value+22] == 0) {
return 1;
}
else {
return 0;
}
}
if(value < 22 && value > 10) {
if(aliens[value+11] == 0 && aliens[value+22] == 0 && aliens[value+33] == 0) {
return 1;
}
else {
return 0;
}
}
if(value < 11) {
if(aliens[value+11] == 0 && aliens[value+22] == 0 && aliens[value+33] == 0 && aliens[value+44] == 0) {
return 1;
}
else {
return 0;
}
}
}
int whatRow(int position) {
if(position > 43) {
return 120;
}
if(position < 44 && position > 32) {
return 94;
}
if(position < 33 && position > 21) {
return 68;
}
if(position < 22 && position > 10) {
return 42;
}
if(position < 11) {
return 16;
}
}
void collisionCleanUp(int x, int y) {
setHaveAlienDeathSound(1);
blankTankBullet(framePointer);
setTankBulletPositionY(0);
setTankBulletState(0);
delayDying();
dyingAlienHelper(framePointer, x, y);
int guise = getGuise();
if(guise == 0) {
renderAlien2(framePointer);
}
else {
renderAlien1(framePointer);
}
alienSpeed();
}
void alienCollision() {
int curTankY = ((getTankBulletPositionY()-2)*640);
int curTankX = getTankBulletPositionX()+3;
int curAlienX = getAlienBlockPositionX();
int curAlienY = getAlienBlockPositionY();
int ufoscore = 0;
int updatescore = 0;
if(framePointer[((getTankBulletPositionY()-2)*640) + getTankBulletPositionX()+3] == 0x00FF0000) {
setHaveSpaceShipDeathSound(1);
blankUfo(framePointer, getUfoPositionX(), getUfoPositionY());
setUfoState(0);
blankTankBullet(framePointer);
setTankBulletPositionY(0);
setTankBulletState(0);
// ufo score operation
ufoscore = rand()%7;
updatescore = selectingUfoscore(framePointer, ufoscore);
updateMyscore(updatescore);
updateNumber(framePointer);
}
if(framePointer[((getTankBulletPositionY()-2)*640) + getTankBulletPositionX()+3] == 0x00FFFFFF || \
framePointer[((getTankBulletPositionY()-2)*640) + getTankBulletPositionX()+5] == 0x00FFFFFF ||\
framePointer[((getTankBulletPositionY()-2)*640) + getTankBulletPositionX()] == 0x00FFFFFF){
curTankY = curTankY/640;
if(curAlienX > 1000) {
curAlienX -= 65535;
}
xil_printf("curX: %d\r\n", curAlienX);
if(curAlienY < curTankY && curTankY < curAlienY + 16 ) {
if(curAlienX < curTankX && curTankX < (curAlienX + 32)) {
dyingAlien(framePointer, (getAlienBlockPositionX()), (getAlienBlockPositionY()));
setAliens(0, 0);
collisionCleanUp((getAlienBlockPositionX()), (getAlienBlockPositionY()));
}
if(curAlienX + 32 < curTankX && curTankX < curAlienX + 64) {
dyingAlien(framePointer, (getAlienBlockPositionX()+32), (getAlienBlockPositionY()));
setAliens(0, 1);
collisionCleanUp((getAlienBlockPositionX()+32), (getAlienBlockPositionY()));
}
if(curAlienX + 64 < curTankX && curTankX < curAlienX + 96) {
dyingAlien(framePointer, (getAlienBlockPositionX()+64), (getAlienBlockPositionY()));
setAliens(0, 2);
collisionCleanUp((getAlienBlockPositionX()+64), (getAlienBlockPositionY()));
}
if(curAlienX + 96 < curTankX && curTankX < curAlienX + 128) {
dyingAlien(framePointer, (getAlienBlockPositionX()+96), (getAlienBlockPositionY()));
setAliens(0, 3);
collisionCleanUp((getAlienBlockPositionX()+96), (getAlienBlockPositionY()));
}
if(curAlienX + 128 < curTankX && curTankX < curAlienX + 160) {
dyingAlien(framePointer, (getAlienBlockPositionX()+128), (getAlienBlockPositionY()));
setAliens(0, 4);
collisionCleanUp((getAlienBlockPositionX()+128), (getAlienBlockPositionY()));
}
if(curAlienX + 160 < curTankX && curTankX < curAlienX + 192) {
dyingAlien(framePointer, (getAlienBlockPositionX()+160), (getAlienBlockPositionY()));
setAliens(0, 5);
collisionCleanUp((getAlienBlockPositionX()+160), (getAlienBlockPositionY()));
}
if(curAlienX + 192 < curTankX && curTankX < curAlienX + 224) {
dyingAlien(framePointer, (getAlienBlockPositionX()+192), (getAlienBlockPositionY()));
setAliens(0, 6);
collisionCleanUp((getAlienBlockPositionX()+192), (getAlienBlockPositionY()));
}
if(curAlienX + 224 < curTankX && curTankX < curAlienX + 256) {
dyingAlien(framePointer, (getAlienBlockPositionX()+ 224), (getAlienBlockPositionY()));
setAliens(0, 7);
collisionCleanUp((getAlienBlockPositionX()+ 224), (getAlienBlockPositionY()));
}
if(curAlienX + 256 < curTankX && curTankX < curAlienX + 288) {
dyingAlien(framePointer, (getAlienBlockPositionX()+ 256), (getAlienBlockPositionY()));
setAliens(0, 8);
collisionCleanUp((getAlienBlockPositionX()+256), (getAlienBlockPositionY()));
}
if(curAlienX + 288 < curTankX && curTankX < curAlienX + 320) {
dyingAlien(framePointer, (getAlienBlockPositionX()+288), (getAlienBlockPositionY()));
setAliens(0, 9);
collisionCleanUp((getAlienBlockPositionX()+288), (getAlienBlockPositionY()));
}
if(curAlienX + 320 < curTankX && curTankX < curAlienX + 352) {
dyingAlien(framePointer, (getAlienBlockPositionX()+320), (getAlienBlockPositionY()));
setAliens(0, 10);
collisionCleanUp((getAlienBlockPositionX()+320), (getAlienBlockPositionY()));
}
updateMyscore(40);
updateNumber(framePointer);
}
if(curAlienY + 26 < curTankY && curTankY < curAlienY + 42) {
if(curAlienX < curTankX && curTankX < (curAlienX + 32)) {
dyingAlien(framePointer, (getAlienBlockPositionX()), (getAlienBlockPositionY()+26));
setAliens(0, 11);
collisionCleanUp((getAlienBlockPositionX()), (getAlienBlockPositionY()+26));
}
if(curAlienX + 32 < curTankX && curTankX < curAlienX + 64) {
dyingAlien(framePointer, (getAlienBlockPositionX()+32), (getAlienBlockPositionY()+26));
setAliens(0, 12);
collisionCleanUp((getAlienBlockPositionX()+32), (getAlienBlockPositionY()+26));
}
if(curAlienX + 64 < curTankX && curTankX < curAlienX + 96) {
dyingAlien(framePointer, (getAlienBlockPositionX()+64), (getAlienBlockPositionY()+26));
setAliens(0, 13);
collisionCleanUp((getAlienBlockPositionX()+64), (getAlienBlockPositionY()+26));
}
if(curAlienX + 96 < curTankX && curTankX < curAlienX + 128) {
dyingAlien(framePointer, (getAlienBlockPositionX()+96), (getAlienBlockPositionY()+26));
setAliens(0, 14);
collisionCleanUp((getAlienBlockPositionX()+96), (getAlienBlockPositionY()+26));
}
if(curAlienX + 128 < curTankX && curTankX < curAlienX + 160) {
dyingAlien(framePointer, (getAlienBlockPositionX()+128), (getAlienBlockPositionY()+26));
setAliens(0, 15);
collisionCleanUp((getAlienBlockPositionX()+128), (getAlienBlockPositionY()+26));
}
if(curAlienX + 160 < curTankX && curTankX < curAlienX + 192) {
dyingAlien(framePointer, (getAlienBlockPositionX()+160), (getAlienBlockPositionY()+26));
setAliens(0, 16);
collisionCleanUp((getAlienBlockPositionX()+160), (getAlienBlockPositionY()+26));
}
if(curAlienX + 192 < curTankX && curTankX < curAlienX + 224) {
dyingAlien(framePointer, (getAlienBlockPositionX()+192), (getAlienBlockPositionY()+26));
setAliens(0, 17);
collisionCleanUp((getAlienBlockPositionX()+192), (getAlienBlockPositionY()+26));
}
if(curAlienX + 224 < curTankX && curTankX < curAlienX + 256) {
dyingAlien(framePointer, (getAlienBlockPositionX()+224), (getAlienBlockPositionY()+26));
setAliens(0, 18);
collisionCleanUp((getAlienBlockPositionX()+224), (getAlienBlockPositionY()+26));
}
if(curAlienX + 256 < curTankX && curTankX < curAlienX + 288) {
dyingAlien(framePointer, (getAlienBlockPositionX()+256), (getAlienBlockPositionY()+26));
setAliens(0, 19);
collisionCleanUp((getAlienBlockPositionX()+256), (getAlienBlockPositionY()+26));
}
if(curAlienX + 288 < curTankX && curTankX < curAlienX + 320) {
dyingAlien(framePointer, (getAlienBlockPositionX()+288), (getAlienBlockPositionY()+26));
setAliens(0, 20);
collisionCleanUp((getAlienBlockPositionX()+288), (getAlienBlockPositionY()+26));
}
if(curAlienX + 320 < curTankX && curTankX < curAlienX + 352) {
dyingAlien(framePointer, (getAlienBlockPositionX()+320), (getAlienBlockPositionY()+26));
setAliens(0, 21);
collisionCleanUp((getAlienBlockPositionX()+320), (getAlienBlockPositionY()+26));
}
updateMyscore(20);
updateNumber(framePointer);
}
if(curAlienY + 52 < curTankY && curTankY < curAlienY + 68) {
if(curAlienX < curTankX && curTankX < (curAlienX + 32)) {
dyingAlien(framePointer, (getAlienBlockPositionX()), (getAlienBlockPositionY()+52));
setAliens(0, 22);
collisionCleanUp((getAlienBlockPositionX()), (getAlienBlockPositionY()+52));
}
if(curAlienX + 32 < curTankX && curTankX < curAlienX + 64) {
dyingAlien(framePointer, (getAlienBlockPositionX()+32), (getAlienBlockPositionY()+52));
setAliens(0, 23);
collisionCleanUp((getAlienBlockPositionX()+32), (getAlienBlockPositionY()+52));
}
if(curAlienX + 64 < curTankX && curTankX < curAlienX + 96) {
dyingAlien(framePointer, (getAlienBlockPositionX()+64), (getAlienBlockPositionY()+52));
setAliens(0, 24);
collisionCleanUp((getAlienBlockPositionX()+64), (getAlienBlockPositionY()+52));
}
if(curAlienX + 96 < curTankX && curTankX < curAlienX + 128) {
dyingAlien(framePointer, (getAlienBlockPositionX()+96), (getAlienBlockPositionY()+52));
setAliens(0, 25);
collisionCleanUp((getAlienBlockPositionX()+96), (getAlienBlockPositionY()+52));
}
if(curAlienX + 128 < curTankX && curTankX < curAlienX + 160) {
dyingAlien(framePointer, (getAlienBlockPositionX()+128), (getAlienBlockPositionY()+52));
setAliens(0, 26);
collisionCleanUp((getAlienBlockPositionX()+128), (getAlienBlockPositionY()+52));
}
if(curAlienX + 160 < curTankX && curTankX < curAlienX + 192) {
dyingAlien(framePointer, (getAlienBlockPositionX()+160), (getAlienBlockPositionY()+52));
setAliens(0, 27);
collisionCleanUp((getAlienBlockPositionX()+160), (getAlienBlockPositionY()+52));
}
if(curAlienX + 192 < curTankX && curTankX < curAlienX + 224) {
dyingAlien(framePointer, (getAlienBlockPositionX()+192), (getAlienBlockPositionY()+52));
setAliens(0, 28);
collisionCleanUp((getAlienBlockPositionX()+192), (getAlienBlockPositionY()+52));
}
if(curAlienX + 224 < curTankX && curTankX < curAlienX + 256) {
dyingAlien(framePointer, (getAlienBlockPositionX()+224), (getAlienBlockPositionY()+52));
setAliens(0, 29);
collisionCleanUp((getAlienBlockPositionX()+224), (getAlienBlockPositionY()+52));
}
if(curAlienX + 256 < curTankX && curTankX < curAlienX + 288) {
dyingAlien(framePointer, (getAlienBlockPositionX()+256), (getAlienBlockPositionY()+52));
setAliens(0, 30);
collisionCleanUp((getAlienBlockPositionX()+256), (getAlienBlockPositionY()+52));
}
if(curAlienX + 288 < curTankX && curTankX < curAlienX + 320) {
dyingAlien(framePointer, (getAlienBlockPositionX()+288), (getAlienBlockPositionY()+52));
setAliens(0, 31);
collisionCleanUp((getAlienBlockPositionX()+288), (getAlienBlockPositionY()+52));
}
if(curAlienX + 320 < curTankX && curTankX < curAlienX + 352) {
dyingAlien(framePointer, (getAlienBlockPositionX()+320), (getAlienBlockPositionY()+52));
setAliens(0, 32);
collisionCleanUp((getAlienBlockPositionX()+320), (getAlienBlockPositionY()+52));
}
updateMyscore(20);
updateNumber(framePointer);
}
if(curAlienY + 78 < curTankY && curTankY < curAlienY + 94) {
if(curAlienX < curTankX && curTankX < (curAlienX + 32)) {
dyingAlien(framePointer, (getAlienBlockPositionX()), (getAlienBlockPositionY()+78));
setAliens(0, 33);
collisionCleanUp((getAlienBlockPositionX()), (getAlienBlockPositionY()+78));
}
if(curAlienX + 32 < curTankX && curTankX < curAlienX + 64) {
dyingAlien(framePointer, (getAlienBlockPositionX()+32), (getAlienBlockPositionY()+78));
setAliens(0, 34);
collisionCleanUp((getAlienBlockPositionX()+32), (getAlienBlockPositionY()+78));
}
if(curAlienX + 64 < curTankX && curTankX < curAlienX + 96) {
dyingAlien(framePointer, (getAlienBlockPositionX()+64), (getAlienBlockPositionY()+78));
setAliens(0, 35);
collisionCleanUp((getAlienBlockPositionX()+64), (getAlienBlockPositionY()+78));
}
if(curAlienX + 96 < curTankX && curTankX < curAlienX + 128) {
dyingAlien(framePointer, (getAlienBlockPositionX()+96), (getAlienBlockPositionY()+78));
setAliens(0, 36);
collisionCleanUp((getAlienBlockPositionX()+96), (getAlienBlockPositionY()+78));
}
if(curAlienX + 128 < curTankX && curTankX < curAlienX + 160) {
dyingAlien(framePointer, (getAlienBlockPositionX()+128), (getAlienBlockPositionY()+78));
setAliens(0, 37);
collisionCleanUp((getAlienBlockPositionX()+128), (getAlienBlockPositionY()+78));
}
if(curAlienX + 160 < curTankX && curTankX < curAlienX + 192) {
dyingAlien(framePointer, (getAlienBlockPositionX()+160), (getAlienBlockPositionY()+78));
setAliens(0, 38);
collisionCleanUp((getAlienBlockPositionX()+160), (getAlienBlockPositionY()+78));
}
if(curAlienX + 192 < curTankX && curTankX < curAlienX + 224) {
dyingAlien(framePointer, (getAlienBlockPositionX()+192), (getAlienBlockPositionY()+78));
setAliens(0, 39);
collisionCleanUp((getAlienBlockPositionX()+192), (getAlienBlockPositionY()+78));
}
if(curAlienX + 224 < curTankX && curTankX < curAlienX + 256) {
dyingAlien(framePointer, (getAlienBlockPositionX()+224), (getAlienBlockPositionY()+78));
setAliens(0, 40);
collisionCleanUp((getAlienBlockPositionX()+224), (getAlienBlockPositionY()+78));
}
if(curAlienX + 256 < curTankX && curTankX < curAlienX + 288) {
dyingAlien(framePointer, (getAlienBlockPositionX()+256), (getAlienBlockPositionY()+78));
setAliens(0, 41);
collisionCleanUp((getAlienBlockPositionX()+256), (getAlienBlockPositionY()+78));
}
if(curAlienX + 288 < curTankX && curTankX < curAlienX + 320) {
dyingAlien(framePointer, (getAlienBlockPositionX()+288), (getAlienBlockPositionY()+78));
setAliens(0, 42);
collisionCleanUp((getAlienBlockPositionX()+288), (getAlienBlockPositionY()+78));
}
if(curAlienX + 320 < curTankX && curTankX < curAlienX + 352) {
dyingAlien(framePointer, (getAlienBlockPositionX()+320), (getAlienBlockPositionY()+78));
setAliens(0, 43);
collisionCleanUp((getAlienBlockPositionX()+320), (getAlienBlockPositionY()+78));
}
updateMyscore(10);
updateNumber(framePointer);
}
if(curAlienY + 104 < curTankY && curTankY < curAlienY +120){
if(curAlienX < curTankX && curTankX < (curAlienX + 32)) {
dyingAlien(framePointer, (getAlienBlockPositionX()), (getAlienBlockPositionY()+104));
setAliens(0, 44);
collisionCleanUp((getAlienBlockPositionX()), (getAlienBlockPositionY()+104));
}
if(curAlienX + 32 < curTankX && curTankX < curAlienX + 64) {
dyingAlien(framePointer, (getAlienBlockPositionX()+32), (getAlienBlockPositionY()+104));
setAliens(0,45);
collisionCleanUp((getAlienBlockPositionX()+32), (getAlienBlockPositionY()+104));
}
if(curAlienX + 64 < curTankX && curTankX < curAlienX + 96) {
dyingAlien(framePointer, (getAlienBlockPositionX()+64), (getAlienBlockPositionY()+104));
setAliens(0, 46);
collisionCleanUp((getAlienBlockPositionX()+64), (getAlienBlockPositionY()+104));
}
if(curAlienX + 96 < curTankX && curTankX < curAlienX + 128) {
dyingAlien(framePointer, (getAlienBlockPositionX()+96), (getAlienBlockPositionY()+104));
setAliens(0, 47);
collisionCleanUp((getAlienBlockPositionX()+96), (getAlienBlockPositionY()+104));
}
if(curAlienX + 128 < curTankX && curTankX < curAlienX + 160) {
dyingAlien(framePointer, (getAlienBlockPositionX()+128), (getAlienBlockPositionY()+104));
setAliens(0, 48);
collisionCleanUp((getAlienBlockPositionX()+128), (getAlienBlockPositionY()+104));
}
if(curAlienX + 160 < curTankX && curTankX < curAlienX + 192) {
dyingAlien(framePointer, (getAlienBlockPositionX()+160), (getAlienBlockPositionY()+104));
setAliens(0, 49);
collisionCleanUp((getAlienBlockPositionX()+160), (getAlienBlockPositionY()+104));
}
if(curAlienX + 192 < curTankX && curTankX < curAlienX + 224) {
dyingAlien(framePointer, (getAlienBlockPositionX()+192), (getAlienBlockPositionY()+104));
setAliens(0, 50);
collisionCleanUp((getAlienBlockPositionX()+192), (getAlienBlockPositionY()+104));
}
if(curAlienX + 224 < curTankX && curTankX < curAlienX + 256) {
dyingAlien(framePointer, (getAlienBlockPositionX()+224), (getAlienBlockPositionY()+104));
setAliens(0, 51);
collisionCleanUp((getAlienBlockPositionX()+224), (getAlienBlockPositionY()+104));
}
if(curAlienX + 256 < curTankX && curTankX < curAlienX + 288) {
dyingAlien(framePointer, (getAlienBlockPositionX()+256), (getAlienBlockPositionY()+104));
setAliens(0, 52);
collisionCleanUp((getAlienBlockPositionX()+256), (getAlienBlockPositionY()+104));
}
if(curAlienX + 288 < curTankX && curTankX < curAlienX + 320) {
dyingAlien(framePointer, (getAlienBlockPositionX()+288), (getAlienBlockPositionY()+104));
setAliens(0, 53);
collisionCleanUp((getAlienBlockPositionX()+288), (getAlienBlockPositionY()+104));
}
if(curAlienX + 320 < curTankX && curTankX < curAlienX + 352) {
dyingAlien(framePointer, (getAlienBlockPositionX()+320), (getAlienBlockPositionY()+104));
setAliens(0, 54);
collisionCleanUp((getAlienBlockPositionX()+320), (getAlienBlockPositionY()+104));
}
updateMyscore(10);
updateNumber(framePointer);
}
}
}
void alienSpeed() {
short* aliens = getAliens();
int i;
int total = 0;
for(i = 0; i < 55; i++) {
if(aliens[i] == 1) {
total++;
}
}
if(total < 55) {
speed = 30;
}
if(total < 44) {
speed = 28;
}
if(total < 33) {
speed = 26;
}
if(total < 22) {
speed = 24;
}
if(total < 11) {
speed = 20;
}
if(total == 0) {
gameOver(framePointer);
}
}
void timer_interrupt_handler() {
onesec++;
fifteenms++;
fivems++;
tenms++;
mytimer++;
if(mytimer == 5000){
mytimer = 0;
xil_printf("my counter value: %d\r\n", mycounter);
}
if(onesec == 100) {
onesec = 0;
}
if(fifteenms == speed) {
fifteenms = 0;
incrementAlienSoundCadence();
moveAlien(framePointer);
renderAlien(framePointer);
if(getAlienBlockPositionY() > 240){
int col;
for(col=0; col<640; col++) {
if(framePointer[360*640 + col] == 0x00FFFFFF) {
gameOver(framePointer);
}
}
}
}
if(tenms == 2){
tenms = 0;
if(getUfoState() == 1){
moveUfo(framePointer, getUfoDirection());
renderUfo(framePointer);
}
}
if(fivems == 1) {
fivems = 0;
if(getTankBulletState() == 1 || getAlien1BulletState() == 1 || getAlien2BulletState() == 1 || \
getAlien3BulletState() == 1 || getAlien4BulletState() == 1) {
int i;
for(i = 0; i < 3; i++) {
moveBullets(framePointer);
renderBullet(framePointer);
}
if(getAlien1BulletState()){
selectBlock(framePointer, 1);
}
if(getAlien2BulletState()){
selectBlock(framePointer, 2);
}
if(getAlien3BulletState()){
selectBlock(framePointer, 3);
}
if(getAlien4BulletState()){
selectBlock(framePointer, 4);
}
if(getTankBulletState()){
selectBlock(framePointer, 5);
}
}
}
}
// This is invoked each time there is a change in the button state (result of a push or a bounce).
void pb_interrupt_handler() {
// Clear the GPIO interrupt.
XGpio_InterruptGlobalDisable(&gpPB); // Turn off all PB interrupts for now.
currentButtonState = XGpio_DiscreteRead(&gpPB, 1); // Get the current state of the buttons.
if(currentButtonState == 16) {
increaseVolume();
}
if(currentButtonState == 4) {
decreaseVolume();
}
XGpio_InterruptClear(&gpPB, 0xFFFFFFFF); // Ack the PB interrupt.
XGpio_InterruptGlobalEnable(&gpPB); // Re-enable PB interrupts.
}
// Main interrupt handler
void interrupt_handler_dispatcher(void* ptr) {
int intc_status = XIntc_GetIntrStatus(XPAR_INTC_0_BASEADDR);
// Check the AC97. Just one method - no need for a separate handler
if (intc_status & XPAR_AXI_AC97_0_INTERRUPT_MASK) {
XIntc_AckIntr(XPAR_INTC_0_BASEADDR, XPAR_AXI_AC97_0_INTERRUPT_MASK);
fillSound();
}
// Check the FIT interrupt first.
if (intc_status & XPAR_FIT_TIMER_0_INTERRUPT_MASK){
XIntc_AckIntr(XPAR_INTC_0_BASEADDR, XPAR_FIT_TIMER_0_INTERRUPT_MASK);
timer_interrupt_handler();
}
// Check the push buttons.
if (intc_status & XPAR_PUSH_BUTTONS_5BITS_IP2INTC_IRPT_MASK){
XIntc_AckIntr(XPAR_INTC_0_BASEADDR, XPAR_PUSH_BUTTONS_5BITS_IP2INTC_IRPT_MASK);
pb_interrupt_handler();
}
}
int main() {
init_platform(); // Necessary for all programs.
// Initialize the GPIO peripherals.
XAC97_HardReset(XPAR_AXI_AC97_0_BASEADDR); //Reset XAC97
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_MasterVol, AC97_VOL_ATTN_23_5_DB); // Set default volume
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_ExtendedAudioStat, 1);
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR,AC97_PCM_DAC_Rate,AC97_PCM_RATE_11025_HZ);
XAC97_mSetControl(XPAR_AXI_AC97_0_BASEADDR, AC97_ENABLE_IN_FIFO_INTERRUPT); //Enable AC97 Interrupts
//interrupt code from clock lab
int success;
success = XGpio_Initialize(&gpPB, XPAR_PUSH_BUTTONS_5BITS_DEVICE_ID);
// Set the push button peripheral to be inputs.
XGpio_SetDataDirection(&gpPB, 1, 0x0000001F);
// Enable the global GPIO interrupt for push buttons.
XGpio_InterruptGlobalEnable(&gpPB);
// Enable all interrupts in the push button peripheral.
XGpio_InterruptEnable(&gpPB, 0xFFFFFFFF);
microblaze_register_handler(interrupt_handler_dispatcher, NULL);
XIntc_EnableIntr(XPAR_INTC_0_BASEADDR,
(XPAR_FIT_TIMER_0_INTERRUPT_MASK | XPAR_PUSH_BUTTONS_5BITS_IP2INTC_IRPT_MASK |XPAR_AXI_AC97_0_INTERRUPT_MASK ));
XIntc_MasterEnable(XPAR_INTC_0_BASEADDR);
microblaze_enable_interrupts();
//end of interrupt code from clock lab
int Status; // Keep track of success/failure of system function calls.
XAxiVdma videoDMAController;
// There are 3 steps to initializing the vdma driver and IP.
// Step 1: lookup the memory structure that is used to access the vdma driver.
XAxiVdma_Config * VideoDMAConfig = XAxiVdma_LookupConfig(XPAR_AXI_VDMA_0_DEVICE_ID);
// Step 2: Initialize the memory structure and the hardware.
if(XST_FAILURE == XAxiVdma_CfgInitialize(&videoDMAController, VideoDMAConfig, XPAR_AXI_VDMA_0_BASEADDR)) {
xil_printf("VideoDMA Did not initialize.\r\n");
}
// Step 3: (optional) set the frame store number.
if(XST_FAILURE == XAxiVdma_SetFrmStore(&videoDMAController, 2, XAXIVDMA_READ)) {
xil_printf("Set Frame Store Failed.");
}
// Initialization is complete at this point.
// Setup the frame counter. We want two read frames. We don't need any write frames but the
// function generates an error if you set the write frame count to 0. We set it to 2
// but ignore it because we don't need a write channel at all.
XAxiVdma_FrameCounter myFrameConfig;
myFrameConfig.ReadFrameCount = 2;
myFrameConfig.ReadDelayTimerCount = 10;
myFrameConfig.WriteFrameCount =2;
myFrameConfig.WriteDelayTimerCount = 10;
Status = XAxiVdma_SetFrameCounter(&videoDMAController, &myFrameConfig);
if (Status != XST_SUCCESS) {
xil_printf("Set frame counter failed %d\r\n", Status);
if(Status == XST_VDMA_MISMATCH_ERROR)
xil_printf("DMA Mismatch Error\r\n");
}
// Now we tell the driver about the geometry of our frame buffer and a few other things.
// Our image is 480 x 640.
XAxiVdma_DmaSetup myFrameBuffer;
myFrameBuffer.VertSizeInput = 480; // 480 vertical pixels.
myFrameBuffer.HoriSizeInput = 640*4; // 640 horizontal (32-bit pixels).
myFrameBuffer.Stride = 640*4; // Dont' worry about the rest of the values.
myFrameBuffer.FrameDelay = 0;
myFrameBuffer.EnableCircularBuf=1;
myFrameBuffer.EnableSync = 0;
myFrameBuffer.PointNum = 0;
myFrameBuffer.EnableFrameCounter = 0;
myFrameBuffer.FixedFrameStoreAddr = 0;
if(XST_FAILURE == XAxiVdma_DmaConfig(&videoDMAController, XAXIVDMA_READ, &myFrameBuffer)) {
xil_printf("DMA Config Failed\r\n");
}
// We need to give the frame buffer pointers to the memory that it will use. This memory
// is where you will write your video data. The vdma IP/driver then streams it to the HDMI
// IP.
myFrameBuffer.FrameStoreStartAddr[0] = FRAME_BUFFER_0_ADDR;
if(XST_FAILURE == XAxiVdma_DmaSetBufferAddr(&videoDMAController, XAXIVDMA_READ,
myFrameBuffer.FrameStoreStartAddr)) {
xil_printf("DMA Set Address Failed Failed\r\n");
}
// Print a sanity message if you get this far.
xil_printf("Woohoo! I made it through initialization.\n\r");
// Now, let's get ready to start displaying some stuff on the screen.
// The variables framePointer and framePointer1 are just pointers to the base address
// of frame 0 and frame 1.
//unsigned int * framePointer = (unsigned int *) FRAME_BUFFER_0_ADDR;
int row = 0;
int col = 0;
for(row=0; row<480; row++) {
for(col=0; col<640; col++) {
if(row > 460 && row < 464) {
framePointer[row*640 + col] = 0x0000FF00;
}
else {
framePointer[row*640 + col] = 0x00000000;
}
}
}
// This tells the HDMI controller the resolution of your display (there must be a better way to do this).
XIo_Out32(XPAR_AXI_HDMI_0_BASEADDR, 640*480);
// Start the DMA for the read channel only.
if(XST_FAILURE == XAxiVdma_DmaStart(&videoDMAController, XAXIVDMA_READ)){
xil_printf("DMA START FAILED\r\n");
}
int frameIndex = 0;
// We have two frames, let's park on frame 0. Use frameIndex to index them.
// Note that you have to start the DMA process before parking on a frame.
if (XST_FAILURE == XAxiVdma_StartParking(&videoDMAController, frameIndex, XAXIVDMA_READ)) {
xil_printf("vdma parking failed\n\r");
}
setAlienBlockPosition(0, 120);
setTankPosition(300, 420);
renderTank(framePointer);
renderAlien(framePointer);
renderBunker(framePointer);
renderScore(framePointer);
renderNumber(framePointer);
renderTanks(framePointer);
alienSpeed();
while (gameState) {
mycounter++;
alienCollision();
int nesButtonState = NES_mReadReg(XPAR_NES_0_BASEADDR, 0);
if(nesButtonState == 2) {
xil_printf("we are in left\r\n");
moveTankL(framePointer);
renderTank(framePointer);
}
if(nesButtonState == 1) {
xil_printf("we are in right\r\n");
moveTankR(framePointer);
renderTank(framePointer);
}
if(nesButtonState == 4) {
xil_printf("we are in mid\r\n");
if(getTankBulletState() == 1) {
continue;
}
else {
setHaveTankBulletSound(1);
setTankBulletState(1);
initialTankBulletPosition();
renderBullet(framePointer);
}
}
if(nesButtonState == 6) {
xil_printf("we are in mid\r\n");
moveTankL(framePointer);
renderTank(framePointer);
if(getTankBulletState() == 1) {
continue;
}
else {
setHaveTankBulletSound(1);
setTankBulletState(1);
initialTankBulletPosition();
renderBullet(framePointer);
}
}
if(nesButtonState == 5) {
xil_printf("we are in mid\r\n");
moveTankR(framePointer);
renderTank(framePointer);
if(getTankBulletState() == 1) {
continue;
}
else {
setHaveTankBulletSound(1);
setTankBulletState(1);
initialTankBulletPosition();
renderBullet(framePointer);
}
}
int ufo_show = rand() % 3000;
if(ufo_show == 100){
if(getUfoState() == 0){
setHaveSpaceShipSound(1);
setUfoState(1);
setUfoDirection();
if(getUfoDirection()){ // getUfoDirection = 1 means ufo going left
setUfoPositionX(610);
setUfoPositionY(45);
renderUfo(framePointer);
}
else{ // getUfoDirection = 0 means ufo going right
setUfoPositionX(0);
setUfoPositionY(45);
renderUfo(framePointer);
}
}
}
int alienShot = rand() % 100000; // this controls how frequent bullets are fired by aliens
if(alienShot == 50) { //key 3
int i = 0;
int j = rand() % 4;
int k[4] = {getAlien1BulletState(), getAlien2BulletState(), getAlien3BulletState(), getAlien4BulletState()};
for(i = 0; i < 16; i ++) {
if(k[j] == 0) {
break;
}
else {
j = rand()%4;
}
}
int bottomAlien = 0;
short* aliens = getAliens();
int a;
while(bottomAlien == 0) {
a = rand () % 54;
if(aliens[a] == 1 && isBottom(a)) {
bottomAlien = 1;
}
}
int position = whatRow(a);
int x = a % 11;
switch(j){
case 0:
if(getAlien1BulletState() == 0) {
setAlien1BulletState(1);
setAlien1BulletPosition(((getAlienBlockPositionX()+10) + 32 * x), getAlienBlockPositionY()+position);
renderBullet(framePointer);
}
break;
case 1:
if(getAlien2BulletState() == 0) {
setAlien2BulletState(1);
setAlien2BulletPosition(((getAlienBlockPositionX()+10) + 32 * x), getAlienBlockPositionY()+position);
renderBullet(framePointer);
}
break;
case 2:
if(getAlien3BulletState() == 0) {
setAlien3BulletState(1);
setAlien3BulletPosition(((getAlienBlockPositionX()+10) + 32 * x), getAlienBlockPositionY()+position);
renderBullet(framePointer);
}
break;
case 3:
if(getAlien4BulletState() == 0) {
setAlien4BulletState(1);
setAlien4BulletPosition(((getAlienBlockPositionX()+10) + 32 * x), getAlienBlockPositionY()+position);
renderBullet(framePointer);
}
break;
default :
break;
}
}
}
cleanup_platform();
return 0;
}