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ZX48.cpp
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//#pragma GCC optimize ("-Ofast")
#pragma GCC optimize ("-O3")
#pragma GCC push_options
//by Shiru
//https://www.patreon.com/shiru8bit
//uses Z80 core by Ketmar
#include <arduino.h>
#include "lib/ESPboyInit.h"
#include "lib/ESPboyInit.cpp"
#include "zymosis.hpp"
#include "glcdfont.c"
#include "gfx/espboy.h"
#include "gfx/keyboard.h"
#include "rom/rom.h"
#include <sigma_delta.h>
#include "game.h"
#include "LittleFS.h"
#include "nbSPI.h"
#define SIGMA_DELTA_RATE 16000
/*
IMPORTANT: the project consumes a lot of RAM, to allow enough set
SSL Support to Basic
IwIP to Lower memory (no features)
Use 160 MHz for much better performance.
Make sure all the display driver and pin comnenctions are correct by
editting the User_Setup.h file in the TFT_eSPI library folder.
Set SPI_FREQUENCY to 39000000 for best performance.
Games should be uploaded into LittleFS as 48K .z80 snapshots (v1,v2,v3)
You can create such snapshots using ZXSPIN emulator
You can also put a 6912 byte screen with the exact same name to be displayed before game
You can provide an optional controls configuration file to provide convinient way to
control a game. Such file has extension of .cfg, it is a plain text file that contains
a string 8 characters long. The characters may represent a key A-Z, 0-9, _ for space,
$ for Enter, @ for CS, # for SS
Warning! This file overrides manual controls selection in file manager
The order of characters is UP,DOWN,LEFT,RIGHT,ACT,ESC,LFT,RGT
for example: QAOPM_0$
I.e. a game file set may look like:
game.z80 - snapshot
game.scr - splash screen in native ZX Spectrum format
*/
ESPboyInit myESPboy;
Adafruit_MCP23017 mcpKeyboard;
uint8_t pad_state;
uint8_t pad_state_prev;
uint8_t pad_state_t;
uint8_t keybModuleExist;
uint16_t line_buffer_1[128] __attribute__ ((aligned(32)));
uint16_t line_buffer_2[128] __attribute__ ((aligned(32)));
bool border_changed = false;
uint8_t line_change[24] __attribute__ ((aligned(32))); //bit mask to updating each line
char filename[32];
uint8_t port_fe; //keyboard, tape, sound, border
uint8_t port_1f; //kempston joystick
char extCfg[3]={'c','f','g'};
char extScr[3]={'s','c','r'};
char extZ80[3]={'z','8','0'};
constexpr uint_fast32_t ZX_CLOCK_FREQ = 3500000;
constexpr uint_fast32_t ZX_FRAME_RATE = 55;
constexpr uint_fast32_t SAMPLE_RATE = 16000; //more is better, but emulations gets slower
constexpr uint_fast32_t MAX_FRAMESKIP = 5;
static uint_fast32_t TTOT; //pause delay to provide right fps, sets in setup();
enum {
K_CS = 0, K_Z, K_X, K_C, K_V,
K_A, K_S, K_D, K_F, K_G,
K_Q, K_W, K_E, K_R, K_T,
K_1, K_2, K_3, K_4, K_5,
K_0, K_9, K_8, K_7, K_6,
K_P, K_O, K_I, K_U, K_Y,
K_ENTER, K_L, K_K, K_J, K_H,
K_SPACE, K_SS, K_M, K_N, K_B,
K_DEL, K_LED, K_NULL = 255,
};
constexpr uint8_t keybCurrent[7][5] PROGMEM = {
{K_Q, K_E, K_R, K_U, K_O},
{K_W, K_S, K_G, K_H, K_L},
{255, K_D, K_T, K_Y, K_I},
{K_A, K_P, K_SS, K_ENTER, K_DEL},
{K_SPACE, K_Z, K_C, K_N, K_M},
{K_CS, K_X, K_V, K_B, K_6},
{K_LED, K_SS, K_F, K_J, K_K}
};
constexpr uint8_t keybCurrent2[7][5] PROGMEM = {
{K_Q, K_2, K_3, K_U, K_O},
{K_1, K_4, K_G, K_H, K_L},
{K_NULL, K_5, K_T, K_Y, K_I},
{K_A, K_P, K_SS, K_ENTER, K_DEL},
{K_SPACE, K_7, K_9, K_N, K_M},
{K_CS, K_8, K_V, K_B, K_6},
{K_0, K_SS, K_6, K_J, K_K}
};
constexpr uint8_t keybOnscrMatrix[2][20] PROGMEM = {
{K_1, K_2, K_3, K_4, K_5, K_6, K_7, K_8, K_9, K_0, K_Q, K_W, K_E, K_R, K_T, K_Y, K_U, K_I, K_O, K_P},
{K_A, K_S, K_D, K_F, K_G, K_H, K_J, K_K, K_L, K_ENTER, K_CS, K_Z, K_X, K_C, K_V, K_B, K_N, K_M, K_SS, K_SPACE},
};
constexpr uint8_t keybOnscr[2][21] PROGMEM = {
"1234567890QWERTYUIOP",
"ASDFGHJKLecZXCVBNMs_",
};
#undef min // defined in TFT_SPI but breaks the bitset library
#include <bitset>
std::bitset<41> key_matriz; // 8 bytes
uint8_t control_type;
uint8_t control_pad_l;
uint8_t control_pad_r;
uint8_t control_pad_u;
uint8_t control_pad_d;
uint8_t control_pad_act;
uint8_t control_pad_esc;
uint8_t control_pad_lft;
uint8_t control_pad_rgt;
enum {
CONTROL_PAD_KEYBOARD,
CONTROL_PAD_KEMPSTON
};
constexpr size_t SOUND_BUFFER_SIZE = (SAMPLE_RATE / ZX_FRAME_RATE * 2);
volatile uint8_t sound_buffer[SOUND_BUFFER_SIZE]; // pointer to volatile array
volatile uint32_t sound_wr_ptr;
volatile uint32_t sound_rd_ptr;
constexpr size_t MEMORY_SIZE = 0xC000;
uint8_t* memory; //49152 bytes
class Z48_ESPBoy : protected zymosis::Z80CallBacks
{
protected:
Z48_ESPBoy()
{
}
ZYMOSIS_INLINE void reset()
{
memset(memory, 0, MEMORY_SIZE);
memset(line_change, 0xff, sizeof(line_change));
key_matriz.reset();
pad_state = 0;
pad_state_prev = 0;
pad_state_t = 0;
port_fe = 0;
port_1f = 0;
}
ZYMOSIS_INLINE void memWriteFn(uint16_t addr, uint8_t value, zymosis::Z80MemIOType mio)
{
uint16_t line;
if (addr >= 0x4000)
{
addr -= 0x4000;
if (addr < 0x1b00)
{
if (memory[addr] != value)
{
if (addr < 0x1800)
{
line = ((addr / 256) & 7) + ((addr / 32) & 7) * 8 + addr / 2048 * 64;
line_change[line / 8] |= (1 << (line & 7));
}
else
{
line_change[(addr - 0x1800) / 32] = 255;
}
}
}
memory[addr] = value;
}
}
ZYMOSIS_INLINE uint8_t memReadFn(uint16_t addr, zymosis::Z80MemIOType mio)
{
if (addr < 0x4000)
{
return pgm_read_byte(&rom[addr]);
}
else
{
return memory[addr - 0x4000];
}
}
ZYMOSIS_INLINE uint8_t portInFn(uint16_t port, zymosis::Z80PIOType pio)
{
uint8_t val;
uint16_t off;
val = 0xff;
if (!(port & 0x01)) //port #fe
{
off = 0;
if (!(port & 0x0100)) off = 5 * 0;
if (!(port & 0x0200)) off = 5 * 1;
if (!(port & 0x0400)) off = 5 * 2;
if (!(port & 0x0800)) off = 5 * 3;
if (!(port & 0x1000)) off = 5 * 4;
if (!(port & 0x2000)) off = 5 * 5;
if (!(port & 0x4000)) off = 5 * 6;
if (!(port & 0x8000)) off = 5 * 7;
if (key_matriz[off + 0]) val &= ~0x01;
if (key_matriz[off + 1]) val &= ~0x02;
if (key_matriz[off + 2]) val &= ~0x04;
if (key_matriz[off + 3]) val &= ~0x08;
if (key_matriz[off + 4]) val &= ~0x10;
}
else
{
if ((port & 0xff) == 0x1f) val = port_1f;
}
return val;
}
ZYMOSIS_INLINE void portOutFn(uint16_t port, uint8_t value, zymosis::Z80PIOType pio)
{
if (!(port & 0x01))
{
if ((port_fe & 7) != (value & 7)) border_changed = true; //update border
port_fe = value;
}
}
public:
/*ZYMOSIS_INLINE*/ void IRAM_ATTR emulateFrame()
{
static uint_fast32_t n, ticks, sacc;
static uint_fast32_t sout;
static uint_fast32_t sound_wr_ptr_l;
zymosis::Z80Cpu<Z48_ESPBoy>* zcpu = reinterpret_cast<zymosis::Z80Cpu<Z48_ESPBoy>*>(this);
sound_wr_ptr_l = sound_wr_ptr;
sacc = 0;
sout = 0;
ticks = zcpu->Z80_Interrupt();
while (ticks < (ZX_CLOCK_FREQ / ZX_FRAME_RATE)){
n = zcpu->Z80_ExecuteTS(8);
sacc += n;
if (port_fe & 0x10) sout = 255;
if (sacc >= (ZX_CLOCK_FREQ / SAMPLE_RATE)){
sound_buffer[sound_wr_ptr_l] = sout;
if (sound_wr_ptr_l != sound_rd_ptr){
sound_wr_ptr_l++;
if (sound_wr_ptr_l >= SOUND_BUFFER_SIZE) sound_wr_ptr_l = 0;
}
sacc -= ZX_CLOCK_FREQ / SAMPLE_RATE;
}
ticks += n;
sout = 0;
}
sound_wr_ptr = sound_wr_ptr_l;
}
#define swplh(x) ((x>>8)|(x<<8))
#define RGB565Q(r,g,b) ( ((((r)>>5)&0x1f)<<11) | ((((g)>>4)&0x3f)<<5) | (((b)>>5)&0x1f) )
/*ZYMOSIS_INLINE */void IRAM_ATTR renderFrame()
{
static bool flip;
static uint16_t i, j, ch, ln, px, row, aptr, optr, attr, pptr1, pptr2, bright;
static uint_fast16_t ink, pap;
static uint_fast16_t col = 0;
static uint8_t line1, line2;
static const uint_fast16_t palette[16] = {
swplh(RGB565Q(0, 0, 0)),
swplh(RGB565Q(0, 29, 200)),
swplh(RGB565Q(216, 36, 15)),
swplh(RGB565Q(213, 48, 201)),
swplh(RGB565Q(0, 199, 33)),
swplh(RGB565Q(0, 201, 203)),
swplh(RGB565Q(206, 202, 39)),
swplh(RGB565Q(203, 203, 203)),
swplh(RGB565Q(0, 0, 0)),
swplh(RGB565Q(0, 39, 251)),
swplh(RGB565Q(255, 48, 22)),
swplh(RGB565Q(255, 63, 252)),
swplh(RGB565Q(0, 249, 44)),
swplh(RGB565Q(0, 252, 254)),
swplh(RGB565Q(255, 253, 51)),
swplh(RGB565Q(255, 255, 255)),
};
while(nbSPI_isBusy());
//myESPboy.tft.startWrite();
if (border_changed)
{
border_changed = false;
col = palette[port_fe & 7] << 2;
myESPboy.tft.fillRect(0,0,128,16,col);
myESPboy.tft.fillRect(0,112,128,16,col);
}
row = 16;
myESPboy.tft.setAddrWindow(0, row, 128, 96);
for (ln = 0; ln < 192; ln += 2)
{
if (!(line_change[ln / 8] & (3 << (ln & 7))))
{
row++;
while(nbSPI_isBusy());
myESPboy.tft.setAddrWindow(0, row, 128, 96);
continue;
}
line_change[ln / 8] &= ~(3 << (ln & 7));
pptr1 = (ln & 7) * 256 + ((ln / 8) & 7) * 32 + (ln / 64) * 2048;
pptr2 = pptr1 + 256;
aptr = 6144 + ln / 8 * 32;
optr = 0;
for (ch = 0; ch < 32; ++ch)
{
attr = memory[aptr++];
bright = (attr & 0x40) ? 8 : 0;
ink = palette[(attr & 7) + bright];
pap = palette[((attr >> 3) & 7) + bright];
line1 = memory[pptr1++];
line2 = memory[pptr2++];
for (px = 0; px < 8; px += 2)
{
col = (line1 & 0x80) ? ink : pap;
col += (line1 & 0x40) ? ink : pap;
col += (line2 & 0x80) ? ink : pap;
col += (line2 & 0x40) ? ink : pap;
if(flip)
line_buffer_1[optr++] = col;
else
line_buffer_2[optr++] = col;
line1 <<= 2;
line2 <<= 2;
}
}
while(nbSPI_isBusy());
if(flip)
nbSPI_writeBytes((uint8_t*)line_buffer_1, 256);
else
nbSPI_writeBytes((uint8_t*)line_buffer_2, 256);
//myESPboy.tft.pushPixels(line_buffer, 128);
row++;
flip=!flip;
}
static uint_fast32_t startTime;
while (((ESP.getCycleCount()) - startTime) < TTOT /*it's global, sets in setup()*/);
startTime = ESP.getCycleCount();
}
void unrle(uint8_t* mem, size_t sz)
{
int i, len;
size_t ptr;
uint8_t val;
ptr = 0;
while (ptr < sz - 4)
{
if (mem[ptr] == 0xed && mem[ptr + 1] == 0xed)
{
len = mem[ptr + 2];
val = mem[ptr + 3];
memmove(&mem[ptr + len], &mem[ptr + 4], sz - (ptr + len)); //not memcpy, because of the overlapping
for (i = 0; i < len; ++i) mem[ptr++] = val;
}
else
{
++ptr;
}
}
}
uint8_t load_z80(const char* filename){
uint8_t header[30];
int sz, len, ptr;
uint8_t rle;
uint32_t addr;
fs::File f;
if(filename[0]){
f = LittleFS.open(filename, "r");
if (!f) return 0;
sz = f.size();
f.readBytes((char*)header, sizeof(header));
}
else {
sz=sizeof(gameItself);
memcpy_P(&header[0], gameItself, sizeof(header));
}
sz -= sizeof(header);
af.a = header[0];
af.f = header[1];
bc.c = header[2];
bc.b = header[3];
hl.l = header[4];
hl.h = header[5];
pc = header[6] + header[7] * 256;
sp.l = header[8];
sp.h = header[9];
regI = header[10];
regR = header[11];
if (header[12] == 255) header[12] = 1;
rle = header[12] & 0x20;
port_fe = (header[12] >> 1) & 7;
de.e = header[13];
de.d = header[14];
bcx.c = header[15];
bcx.b = header[16];
dex.e = header[17];
dex.d = header[18];
hlx.l = header[19];
hlx.h = header[20];
afx.a = header[21];
afx.f = header[22];
ix.l = header[23];
ix.h = header[24];
iy.l = header[25];
iy.h = header[26];
if (!(header[27] & 1)) //di
{
iff1 = 0;
}
else
{
iff1 = 1;
prev_was_EIDDR = 1;
}
iff2 = header[28];
im = (header[29] & 3);
if (pc) //v1 format
{
if(filename[0])
f.readBytes((char*)memory, sz);
else
memcpy_P(memory, &gameItself[sizeof(header)], sz);
if (rle) unrle(memory, 16384 * 3);
}
else //v2 or v3 format, features an extra header
{
//read actual PC from the extra header, skip rest of the extra header
if(filename[0])
f.readBytes((char*)header, 4);
else
memcpy_P((unsigned char *)&header, &gameItself[sizeof(header)], 4);
sz -= 4;
len = header[0] + header[1] * 256 + 2 - 4;
pc = header[2] + header[3] * 256;
if(filename[0])
f.seek(len, fs::SeekCur);
else
addr = len+sizeof(header)+4;
sz -= len;
//unpack 16K pages
while (sz > 0)
{
if(filename[0])
f.readBytes((char*)header, 3);
else{
memcpy_P((unsigned char *)&header, &gameItself[addr], 3);
addr += 3;
}
sz -= 3;
len = header[0] + header[1] * 256;
switch (header[2])
{
case 4: ptr = 0x8000; break;
case 5: ptr = 0xc000; break;
case 8: ptr = 0x4000; break;
default:
ptr = 0;
}
if (ptr)
{
ptr -= 0x4000;
if(filename[0])
f.readBytes((char*)&memory[ptr], len);
else{
memcpy_P((unsigned char *)&memory[ptr], &gameItself[addr], len);
addr+=len;}
sz -= len;
if (len < 0xffff) unrle(&memory[ptr], 16384);
}
else
{
if(filename[0])
f.seek(len, fs::SeekCur);
else
addr+=len;
sz -= len;
}
}
}
if (filename[0] != 0) f.close();
return 1;
}
uint8_t load_scr(const char* filename){
if (filename[0]){
fs::File f = LittleFS.open(filename, "r");
if (!f) return 0;
f.readBytes((char*)memory, 6912);
f.close();
memset(line_change, 0xff, sizeof(line_change));
return 1;
}
else{
if (gameScreenExist) {
memcpy_P(memory, gameScreen, 6912);
memset(line_change, 0xff, sizeof(line_change));
return 1;
}
else return 0;
}
}
};
zymosis::Z80Cpu<Z48_ESPBoy> cpu;
int IRAM_ATTR check_key()
{
pad_state_prev = pad_state;
//pad_state = myESPboy.getKeys();
pad_state = ~myESPboy.mcp.readGPIOAB() & 255;
pad_state_t = (pad_state ^ pad_state_prev) & pad_state;
return pad_state;
}
//0 no timeout, otherwise timeout in ms
void wait_any_key(int timeout){
timeout /= 100;
while (1)
{
check_key();
if (myESPboy.getKeys()) break;
if (timeout)
{
--timeout;
if (timeout <= 0) break;
}
delay(100);
}
}
//render part of a 8-bit uncompressed BMP file
//no clipping
//uses line buffer to draw it much faster than through writePixel
void drawBMP8Part(int16_t x, int16_t y, const uint8_t bitmap[], int16_t dx, int16_t dy, int16_t w, int16_t h)
{
uint16_t i, j, col, c16;
uint32_t bw, bh, wa, off, rgb;
bw = pgm_read_dword(&bitmap[0x12]);
bh = pgm_read_dword(&bitmap[0x16]);
wa = (bw + 3) & ~3;
if (w >= h)
{
for (i = 0; i < h; ++i)
{
off = 54 + 256 * 4 + (bh - 1 - (i + dy)) * wa + dx;
for (j = 0; j < w; ++j)
{
col = pgm_read_byte(&bitmap[off++]);
rgb = pgm_read_dword(&bitmap[54 + col * 4]);
c16 = ((rgb & 0xf8) >> 3) | ((rgb & 0xfc00) >> 5) | ((rgb & 0xf80000) >> 8);
line_buffer_1[j] = c16;
}
myESPboy.tft.pushImage(x, y + i, w, 1, line_buffer_1);
}
}
else
{
for (i = 0; i < w; ++i)
{
off = 54 + 256 * 4 + (bh - 1 - dy) * wa + i + dx;
for (j = 0; j < h; ++j)
{
col = pgm_read_byte(&bitmap[off]);
rgb = pgm_read_dword(&bitmap[54 + col * 4]);
c16 = ((rgb & 0xf8) >> 3) | ((rgb & 0xfc00) >> 5) | ((rgb & 0xf80000) >> 8);
line_buffer_1[j] = c16;
off -= wa;
}
myESPboy.tft.pushImage(x + i, y, 1, h, line_buffer_1);
}
}
}
void drawCharFast(uint16_t x, uint16_t y, uint8_t c, uint16_t color, uint16_t bg)
{
uint16_t i, j, c16, line;
for (i = 0; i < 5; ++i)
{
line = pgm_read_byte(&font[c * 5 + i]);
for (j = 0; j < 8; ++j)
{
c16 = (line & 1) ? color : bg;
line_buffer_1[j * 5 + i] = c16;
line >>= 1;
}
}
myESPboy.tft.pushImage(x, y, 5, 8, line_buffer_1);
}
void printFast(int x, int y, char* str, int16_t color, int16_t bg)
{
char c;
while (c = *str++)
{
drawCharFast(x, y, c, color, bg);
x += 6;
}
}
void printFast_P(int x, int y, PGM_P str, int16_t color, int16_t bg)
{
char c;
while (c = pgm_read_byte(str++))
{
drawCharFast(x, y, c, color, bg);
x += 6;
}
}
bool espboy_logo_effect(int out)
{
int16_t i, j, w, h, sx, sy, off, st, anim;
sx = 32;
sy = 28;
w = 64;
h = 72;
st = 8;
for (anim = 0; anim < st; ++anim)
{
if (check_key() & PAD_ANY) return false;
//if (!out) set_speaker(200 + anim * 50, 5);
for (i = 0; i < w / st; ++i)
{
for (j = 0; j < st; ++j)
{
off = anim - (7 - j);
if (out) off += 8;
if (off < 0 || off >= st) off = 0; else off += i * st;
drawBMP8Part(sx + i * st + j, sy, g_espboy, off, 0, 1, h);
}
}
delay(1000 / 30);
}
return true;
}
#define CONTROL_TYPES 5
const char layout_name[] PROGMEM = "KEMP\0QAOP\0ZXse\0SINC\0CURS\0";
constexpr int8_t layout_scheme[] PROGMEM = {
-1, 0, 0, 0, 0, 0, 0, 0,
K_O, K_P, K_Q, K_A, K_SPACE, K_M, K_0, K_1,
K_Z, K_X, K_Q, K_A, K_SPACE, K_ENTER, K_0, K_1,
K_6, K_7, K_9, K_8, K_0, K_ENTER, K_SPACE, K_1,
K_5, K_8, K_8, K_7, K_0, K_ENTER, K_SPACE, K_1
};
#define FILE_HEIGHT 14
#define FILE_FILTER F("z80")
int16_t file_cursor;
uint8_t file_browser_ext(const char* name)
{
while (1) if (*name++ == '.') break;
return (strcasecmp_P(name, (PGM_P)FILE_FILTER) == 0) ? 1 : 0;
}
void file_browser(const char* path, const __FlashStringHelper* header, char* fname, uint16_t fname_len)
{
int16_t i, sy, pos, off, frame, file_count, control_type;
uint16_t j;
uint8_t change, filter;
fs::Dir dir;
fs::File entry;
char name[31 + 1];
const char* str;
memset(fname, 0, fname_len);
memset(name, 0, sizeof(name));
myESPboy.tft.fillScreen(TFT_BLACK);
dir = LittleFS.openDir(path);
file_count = 0;
control_type = 0;
while (dir.next())
{
entry = dir.openFile("r");
filter = file_browser_ext(entry.name());
entry.close();
if (filter) ++file_count;
}
if (!file_count)
{
//printFast_P(1, 60, PSTR("Upload zx80 to LittleFS"), TFT_RED, 0);
//delay(1000);
filename[0] = 0;
}
else
{
printFast_P(4, 4, (PGM_P)header, TFT_GREEN, 0);
myESPboy.tft.drawFastHLine(0, 12, 128, TFT_WHITE);
change = 1;
frame = 0;
while (1)
{
if (change)
{
printFast_P(100, 4, &layout_name[control_type * 5], TFT_WHITE, 0);
pos = file_cursor - FILE_HEIGHT / 2;
if (pos > file_count - FILE_HEIGHT) pos = file_count - FILE_HEIGHT;
if (pos < 0) pos = 0;
dir = LittleFS.openDir(path);
i = pos;
while (dir.next())
{
entry = dir.openFile("r");
filter = file_browser_ext(entry.name());
entry.close();
if (!filter) continue;
--i;
if (i < 0) break;
}
sy = 14;
i = 0;
while (1)
{
entry = dir.openFile("r");
filter = file_browser_ext(entry.name());
if (filter)
{
str = entry.name();
for (j = 0; j < sizeof(name) - 1; j++)
{
if (*str != 0 && *str != '.') name[j] = *str++;
else name[j] = ' ';
}
printFast(8, sy, name, TFT_WHITE, 0);
drawCharFast(2, sy, ' ', TFT_WHITE, TFT_BLACK);
if (pos == file_cursor)
{
strncpy(fname, entry.name(), fname_len);
if (!(frame & 128)) drawCharFast(2, sy, 0xda, TFT_WHITE, TFT_BLACK);
}
}
entry.close();
if (!dir.next()) break;
if (filter)
{
sy += 8;
++pos;
++i;
if (i >= FILE_HEIGHT) break;
}
}
change = 0;
}
//check_key();
if (myESPboy.getKeys() & PAD_UP)
{
--file_cursor;
if (file_cursor < 0) file_cursor = file_count - 1;
change = 1;
frame = 0;
delay(100);
}
if (myESPboy.getKeys() & PAD_DOWN)
{
++file_cursor;
if (file_cursor >= file_count) file_cursor = 0;
change = 1;
frame = 0;
delay(100);
}
if (myESPboy.getKeys() & PAD_ACT)
{
++control_type;
if (control_type >= CONTROL_TYPES) control_type = 0;
change = 1;
delay(100);
}
if (myESPboy.getKeys() & PAD_ESC) {
delay(100);
break;
}
/*if ((pad_state & PAD_LFT) || (pad_state & PAD_RGT)) {
fname[0] = 0;
break;
}*/
delay(1);
frame++;
if (!(frame & 127)) change = 1;
}
off = control_type * 8;
if (pgm_read_byte(&layout_scheme[off + 0]) >= 0)
{
control_type = CONTROL_PAD_KEYBOARD;
control_pad_l = pgm_read_byte(&layout_scheme[off + 0]);
control_pad_r = pgm_read_byte(&layout_scheme[off + 1]);
control_pad_u = pgm_read_byte(&layout_scheme[off + 2]);
control_pad_d = pgm_read_byte(&layout_scheme[off + 3]);
control_pad_act = pgm_read_byte(&layout_scheme[off + 4]);
control_pad_esc = pgm_read_byte(&layout_scheme[off + 5]);
control_pad_lft = pgm_read_byte(&layout_scheme[off + 6]);
control_pad_rgt = pgm_read_byte(&layout_scheme[off + 7]);
}
else
{