W801学习笔记九：HLK-W801制作学习机/NES游戏机(模拟器)

本文链接：https://blog.youkuaiyun.com/vvind/article/details/134806605

模拟部分主要参考胖哥王老师的这个。

单片机---HLK-W801移植Nes模拟器（一）_单片机运行.nes-优快云博客

1、修改InfoNES_system.c文件中的键盘操作：

void InfoNES_PadState( DWORD *pdwPad1, DWORD *pdwPad2, DWORD *pdwSystem )
{
   u32 keys = KEYS_INPUT;
    *pdwPad1 = 0;

	if(!(keys & (0x1 << KEY_UP)))
	{
		*pdwPad1 |= PAD_JOY_UP;
	}

	if(!(keys & (0x1 << KEY_DOWN)))
	{
		*pdwPad1 |= PAD_JOY_DOWN;
	}
	if(!(keys & (0x1 << KEY_LFT)))
	{
		*pdwPad1 |= PAD_JOY_LEFT;
	}
	if(!(keys & (0x1 << KEY_RHT)))
	{
		*pdwPad1 |= PAD_JOY_RIGHT;
	}
	if(!(keys & (0x1 << KEY_START)))
	{
		*pdwPad1 |= PAD_JOY_START;
	}
	if(!(keys & (0x1 << KEY_A)))
	{
		*pdwPad1 |= PAD_JOY_A;
	}
	if(!(keys & (0x1 << KEY_B)))
	{
		*pdwPad1 |= PAD_JOY_B;
	}
	if(!(keys & (0x1 << KEY_SEL)))
	{
		*pdwPad1 |= PAD_JOY_SELECT;
	}
	
}

2、修改绘图操作：

void InfoNES_LoadLine()
{
	//int i;
	if(PPU_Scanline==100)
	{
		FrameCount++;
	}
	//InfoNES_LoadFrame();
	//ILI9341_DrawLineOne(PPU_Scanline,WorkLine);

	Display_DrawLine(PPU_Scanline,WorkLine);
	//printf("PPU_Scanline:%d\n",PPU_Scanline);
	
}

lcd.c

void Display_DrawLine(u16 y,u16* data)
{
	

	LCD_Address_Set(112, y+20, 112+255, y+20 );	//设置显示范围
			LCD_CS_CLR;
			for (u16 i = 0; i < 256; i++) {
				LCD_WR_DATA16((data[i] >> 8) | (data[i]  << 8));
			}
			LCD_CS_SET;
	
	
}

3、修改rom.c.我们把4个游戏都加载进去。