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rom.c
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rom.c
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/*
* PicoROM
* Simulate a ROM chip (e.g. 28c256) with a Raspberry Pi Pico.
* Nick Bild (nick.bild@gmail.com)
* August 2021
*/
#include "pico/stdlib.h"
#include "hardware/clocks.h"
#include "hardware/vreg.h"
#include "pin_definitions.h"
#include <stdlib.h>
void setup_gpio();
int get_requested_address();
void put_data_on_bus(int);
void setup_rom_contents();
uint8_t rom_contents[32768] = {};
int main() {
// Specify contents of emulated ROM.
setup_rom_contents();
// Set system clock speed.
// 400 MHz
vreg_set_voltage(VREG_VOLTAGE_1_30);
set_sys_clock_pll(1600000000, 4, 1);
// GPIO setup.
setup_gpio();
// Continually check address lines and
// put associated data on bus.
while (true) {
put_data_on_bus(get_requested_address());
}
}
void setup_gpio() {
// Address pins.
gpio_init(A0);
gpio_set_dir(A0, GPIO_IN);
gpio_init(A1);
gpio_set_dir(A1, GPIO_IN);
gpio_init(A2);
gpio_set_dir(A2, GPIO_IN);
gpio_init(A3);
gpio_set_dir(A3, GPIO_IN);
gpio_init(A4);
gpio_set_dir(A4, GPIO_IN);
gpio_init(A5);
gpio_set_dir(A5, GPIO_IN);
gpio_init(A6);
gpio_set_dir(A6, GPIO_IN);
gpio_init(A7);
gpio_set_dir(A7, GPIO_IN);
gpio_init(A8);
gpio_set_dir(A8, GPIO_IN);
gpio_init(A9);
gpio_set_dir(A9, GPIO_IN);
gpio_init(A10);
gpio_set_dir(A10, GPIO_IN);
gpio_init(A11);
gpio_set_dir(A11, GPIO_IN);
gpio_init(A12);
gpio_set_dir(A12, GPIO_IN);
gpio_init(A13);
gpio_set_dir(A13, GPIO_IN);
gpio_init(A14);
gpio_set_dir(A14, GPIO_IN);
// Data pins.
gpio_init(D0);
gpio_set_dir(D0, GPIO_OUT);
gpio_init(D1);
gpio_set_dir(D1, GPIO_OUT);
gpio_init(D2);
gpio_set_dir(D2, GPIO_OUT);
gpio_init(D3);
gpio_set_dir(D3, GPIO_OUT);
gpio_init(D4);
gpio_set_dir(D4, GPIO_OUT);
gpio_init(D5);
gpio_set_dir(D5, GPIO_OUT);
gpio_init(D6);
gpio_set_dir(D6, GPIO_OUT);
gpio_init(D7);
gpio_set_dir(D7, GPIO_OUT);
}
int get_requested_address() {
// Return only first 15 bits.
return gpio_get_all() & 32767;
}
void put_data_on_bus(int address) {
// int data = rom_contents[address];
// gpio mask = 8355840; // i.e.: 11111111000000000000000
// Shift data 15 bits to put it in correct position to match data pin defintion.
gpio_put_masked(8355840, rom_contents[address] << 15);
}
void setup_rom_contents() {
// NMI Interrupt address.
// little endian
rom_contents[32762] = 0;
rom_contents[32763] = 0;
// Starting address of program (write to FFFC-FFFD).
// little endian
rom_contents[32764] = 0;
rom_contents[32765] = 128;
// Interrupt address.
// little endian
rom_contents[32766] = 0;
rom_contents[32767] = 0;
// Program, starting at ROM address 0.
rom_contents[0] = 120;
rom_contents[1] = 169;
rom_contents[2] = 127;
rom_contents[3] = 141;
rom_contents[4] = 254;
rom_contents[5] = 127;
rom_contents[6] = 169;
rom_contents[7] = 255;
rom_contents[8] = 141;
rom_contents[9] = 242;
rom_contents[10] = 127;
rom_contents[11] = 169;
rom_contents[12] = 255;
rom_contents[13] = 141;
rom_contents[14] = 243;
rom_contents[15] = 127;
rom_contents[16] = 169;
rom_contents[17] = 0;
rom_contents[18] = 141;
rom_contents[19] = 240;
rom_contents[20] = 127;
rom_contents[21] = 169;
rom_contents[22] = 0;
rom_contents[23] = 141;
rom_contents[24] = 241;
rom_contents[25] = 127;
rom_contents[26] = 169;
rom_contents[27] = 127;
rom_contents[28] = 141;
rom_contents[29] = 238;
rom_contents[30] = 127;
rom_contents[31] = 169;
rom_contents[32] = 255;
rom_contents[33] = 141;
rom_contents[34] = 227;
rom_contents[35] = 127;
rom_contents[36] = 169;
rom_contents[37] = 0;
rom_contents[38] = 141;
rom_contents[39] = 225;
rom_contents[40] = 127;
rom_contents[41] = 32;
rom_contents[42] = 243;
rom_contents[43] = 136;
rom_contents[44] = 32;
rom_contents[45] = 169;
rom_contents[46] = 131;
rom_contents[47] = 169;
rom_contents[48] = 1;
rom_contents[49] = 133;
rom_contents[50] = 4;
rom_contents[51] = 169;
rom_contents[52] = 1;
rom_contents[53] = 133;
rom_contents[54] = 5;
rom_contents[55] = 165;
rom_contents[56] = 5;
rom_contents[57] = 141;
rom_contents[58] = 240;
rom_contents[59] = 127;
rom_contents[60] = 165;
rom_contents[61] = 4;
rom_contents[62] = 141;
rom_contents[63] = 241;
rom_contents[64] = 127;
rom_contents[65] = 88;
rom_contents[66] = 162;
rom_contents[67] = 0;
rom_contents[68] = 32;
rom_contents[69] = 74;
rom_contents[70] = 128;
rom_contents[71] = 76;
rom_contents[72] = 183;
rom_contents[73] = 138;
rom_contents[74] = 189;
rom_contents[75] = 8;
rom_contents[76] = 147;
rom_contents[77] = 201;
rom_contents[78] = 255;
rom_contents[79] = 240;
rom_contents[80] = 7;
rom_contents[81] = 32;
rom_contents[82] = 100;
rom_contents[83] = 128;
rom_contents[84] = 232;
rom_contents[85] = 76;
rom_contents[86] = 74;
rom_contents[87] = 128;
rom_contents[88] = 96;
rom_contents[89] = 32;
rom_contents[90] = 164;
rom_contents[91] = 134;
rom_contents[92] = 201;
rom_contents[93] = 13;
rom_contents[94] = 208;
rom_contents[95] = 4;
rom_contents[96] = 72;
rom_contents[97] = 76;
rom_contents[98] = 16;
rom_contents[99] = 129;
rom_contents[100] = 72;
rom_contents[101] = 201;
rom_contents[102] = 8;
rom_contents[103] = 208;
rom_contents[104] = 53;
rom_contents[105] = 169;
rom_contents[106] = 32;
rom_contents[107] = 141;
rom_contents[108] = 0;
rom_contents[109] = 127;
rom_contents[110] = 198;
rom_contents[111] = 4;
rom_contents[112] = 165;
rom_contents[113] = 4;
rom_contents[114] = 201;
rom_contents[115] = 0;
rom_contents[116] = 208;
rom_contents[117] = 17;
rom_contents[118] = 165;
rom_contents[119] = 5;
rom_contents[120] = 201;
rom_contents[121] = 1;
rom_contents[122] = 240;
rom_contents[123] = 9;
rom_contents[124] = 169;
rom_contents[125] = 48;
rom_contents[126] = 133;
rom_contents[127] = 4;
rom_contents[128] = 198;
rom_contents[129] = 5;
rom_contents[130] = 76;
rom_contents[131] = 135;
rom_contents[132] = 128;
rom_contents[133] = 230;
rom_contents[134] = 4;
rom_contents[135] = 169;
rom_contents[136] = 32;
rom_contents[137] = 141;
rom_contents[138] = 0;
rom_contents[139] = 127;
rom_contents[140] = 165;
rom_contents[141] = 5;
rom_contents[142] = 141;
rom_contents[143] = 240;
rom_contents[144] = 127;
rom_contents[145] = 165;
rom_contents[146] = 4;
rom_contents[147] = 141;
rom_contents[148] = 241;
rom_contents[149] = 127;
rom_contents[150] = 169;
rom_contents[151] = 127;
rom_contents[152] = 141;
rom_contents[153] = 0;
rom_contents[154] = 127;
rom_contents[155] = 76;
rom_contents[156] = 16;
rom_contents[157] = 129;
rom_contents[158] = 201;
rom_contents[159] = 11;
rom_contents[160] = 144;
rom_contents[161] = 110;
rom_contents[162] = 201;
rom_contents[163] = 14;
rom_contents[164] = 240;
rom_contents[165] = 106;
rom_contents[166] = 201;
rom_contents[167] = 17;
rom_contents[168] = 240;
rom_contents[169] = 102;
rom_contents[170] = 201;
rom_contents[171] = 128;
rom_contents[172] = 240;
rom_contents[173] = 98;
rom_contents[174] = 201;
rom_contents[175] = 145;
rom_contents[176] = 240;
rom_contents[177] = 94;
rom_contents[178] = 201;
rom_contents[179] = 147;
rom_contents[180] = 240;
rom_contents[181] = 90;
rom_contents[182] = 201;
rom_contents[183] = 255;
rom_contents[184] = 240;
rom_contents[185] = 86;
rom_contents[186] = 201;
rom_contents[187] = 13;
rom_contents[188] = 208;
rom_contents[189] = 45;
rom_contents[190] = 169;
rom_contents[191] = 32;
rom_contents[192] = 141;
rom_contents[193] = 0;
rom_contents[194] = 127;
rom_contents[195] = 169;
rom_contents[196] = 1;
rom_contents[197] = 133;
rom_contents[198] = 4;
rom_contents[199] = 230;
rom_contents[200] = 5;
rom_contents[201] = 165;
rom_contents[202] = 5;
rom_contents[203] = 201;
rom_contents[204] = 29;
rom_contents[205] = 208;
rom_contents[206] = 10;
rom_contents[207] = 32;
rom_contents[208] = 117;
rom_contents[209] = 130;
rom_contents[210] = 32;
rom_contents[211] = 140;
rom_contents[212] = 132;
rom_contents[213] = 169;
rom_contents[214] = 28;
rom_contents[215] = 133;
rom_contents[216] = 5;
rom_contents[217] = 165;
rom_contents[218] = 5;
rom_contents[219] = 141;
rom_contents[220] = 240;
rom_contents[221] = 127;
rom_contents[222] = 165;
rom_contents[223] = 4;
rom_contents[224] = 141;
rom_contents[225] = 241;
rom_contents[226] = 127;
rom_contents[227] = 169;
rom_contents[228] = 127;
rom_contents[229] = 141;
rom_contents[230] = 0;
rom_contents[231] = 127;
rom_contents[232] = 76;
rom_contents[233] = 16;
rom_contents[234] = 129;
rom_contents[235] = 141;
rom_contents[236] = 0;
rom_contents[237] = 127;
rom_contents[238] = 133;
rom_contents[239] = 6;
rom_contents[240] = 32;
rom_contents[241] = 32;
rom_contents[242] = 129;
rom_contents[243] = 230;
rom_contents[244] = 4;
rom_contents[245] = 169;
rom_contents[246] = 49;
rom_contents[247] = 197;
rom_contents[248] = 4;
rom_contents[249] = 208;
rom_contents[250] = 6;
rom_contents[251] = 169;
rom_contents[252] = 1;
rom_contents[253] = 133;
rom_contents[254] = 4;
rom_contents[255] = 230;
rom_contents[256] = 5;
rom_contents[257] = 165;
rom_contents[258] = 5;
rom_contents[259] = 141;
rom_contents[260] = 240;
rom_contents[261] = 127;
rom_contents[262] = 165;
rom_contents[263] = 4;
rom_contents[264] = 141;
rom_contents[265] = 241;
rom_contents[266] = 127;
rom_contents[267] = 169;
rom_contents[268] = 127;
rom_contents[269] = 141;
rom_contents[270] = 0;
rom_contents[271] = 127;
rom_contents[272] = 104;
rom_contents[273] = 96;
rom_contents[274] = 24;
rom_contents[275] = 96;
rom_contents[276] = 169;
rom_contents[277] = 0;
rom_contents[278] = 141;
rom_contents[279] = 225;
rom_contents[280] = 127;
rom_contents[281] = 96;
rom_contents[282] = 169;
rom_contents[283] = 255;
rom_contents[284] = 141;
rom_contents[285] = 225;
rom_contents[286] = 127;
rom_contents[287] = 96;
rom_contents[288] = 165;
rom_contents[289] = 5;
rom_contents[290] = 166;
rom_contents[291] = 4;
rom_contents[292] = 201;
rom_contents[293] = 1;
rom_contents[294] = 208;
rom_contents[295] = 8;
rom_contents[296] = 165;
rom_contents[297] = 6;
rom_contents[298] = 157;
rom_contents[299] = 0;
rom_contents[300] = 81;
rom_contents[301] = 76;
rom_contents[302] = 116;
rom_contents[303] = 130;
rom_contents[304] = 201;
rom_contents[305] = 2;
rom_contents[306] = 208;
rom_contents[307] = 8;
rom_contents[308] = 165;
rom_contents[309] = 6;
rom_contents[310] = 157;
rom_contents[311] = 0;
rom_contents[312] = 82;
rom_contents[313] = 76;
rom_contents[314] = 116;
rom_contents[315] = 130;
rom_contents[316] = 201;
rom_contents[317] = 3;
rom_contents[318] = 208;
rom_contents[319] = 8;
rom_contents[320] = 165;
rom_contents[321] = 6;
rom_contents[322] = 157;
rom_contents[323] = 0;
rom_contents[324] = 83;
rom_contents[325] = 76;
rom_contents[326] = 116;
rom_contents[327] = 130;
rom_contents[328] = 201;
rom_contents[329] = 4;
rom_contents[330] = 208;
rom_contents[331] = 8;
rom_contents[332] = 165;
rom_contents[333] = 6;
rom_contents[334] = 157;
rom_contents[335] = 0;
rom_contents[336] = 84;
rom_contents[337] = 76;
rom_contents[338] = 116;
rom_contents[339] = 130;
rom_contents[340] = 201;
rom_contents[341] = 5;
rom_contents[342] = 208;
rom_contents[343] = 8;
rom_contents[344] = 165;
rom_contents[345] = 6;
rom_contents[346] = 157;
rom_contents[347] = 0;
rom_contents[348] = 85;
rom_contents[349] = 76;
rom_contents[350] = 116;
rom_contents[351] = 130;
rom_contents[352] = 201;
rom_contents[353] = 6;
rom_contents[354] = 208;
rom_contents[355] = 8;
rom_contents[356] = 165;
rom_contents[357] = 6;
rom_contents[358] = 157;
rom_contents[359] = 0;
rom_contents[360] = 86;
rom_contents[361] = 76;
rom_contents[362] = 116;
rom_contents[363] = 130;
rom_contents[364] = 201;
rom_contents[365] = 7;
rom_contents[366] = 208;
rom_contents[367] = 8;
rom_contents[368] = 165;
rom_contents[369] = 6;
rom_contents[370] = 157;
rom_contents[371] = 0;
rom_contents[372] = 87;
rom_contents[373] = 76;
rom_contents[374] = 116;
rom_contents[375] = 130;
rom_contents[376] = 201;
rom_contents[377] = 8;
rom_contents[378] = 208;
rom_contents[379] = 8;
rom_contents[380] = 165;
rom_contents[381] = 6;
rom_contents[382] = 157;
rom_contents[383] = 0;
rom_contents[384] = 88;
rom_contents[385] = 76;
rom_contents[386] = 116;
rom_contents[387] = 130;
rom_contents[388] = 201;
rom_contents[389] = 9;
rom_contents[390] = 208;
rom_contents[391] = 8;
rom_contents[392] = 165;
rom_contents[393] = 6;
rom_contents[394] = 157;
rom_contents[395] = 0;
rom_contents[396] = 89;
rom_contents[397] = 76;
rom_contents[398] = 116;
rom_contents[399] = 130;
rom_contents[400] = 201;
rom_contents[401] = 10;
rom_contents[402] = 208;
rom_contents[403] = 8;
rom_contents[404] = 165;
rom_contents[405] = 6;
rom_contents[406] = 157;
rom_contents[407] = 0;
rom_contents[408] = 90;
rom_contents[409] = 76;
rom_contents[410] = 116;
rom_contents[411] = 130;
rom_contents[412] = 201;
rom_contents[413] = 11;
rom_contents[414] = 208;
rom_contents[415] = 8;
rom_contents[416] = 165;
rom_contents[417] = 6;
rom_contents[418] = 157;
rom_contents[419] = 0;
rom_contents[420] = 91;
rom_contents[421] = 76;
rom_contents[422] = 116;
rom_contents[423] = 130;
rom_contents[424] = 201;
rom_contents[425] = 12;
rom_contents[426] = 208;
rom_contents[427] = 8;
rom_contents[428] = 165;
rom_contents[429] = 6;
rom_contents[430] = 157;
rom_contents[431] = 0;
rom_contents[432] = 92;
rom_contents[433] = 76;
rom_contents[434] = 116;
rom_contents[435] = 130;
rom_contents[436] = 201;
rom_contents[437] = 13;
rom_contents[438] = 208;
rom_contents[439] = 8;
rom_contents[440] = 165;
rom_contents[441] = 6;
rom_contents[442] = 157;
rom_contents[443] = 0;
rom_contents[444] = 93;
rom_contents[445] = 76;
rom_contents[446] = 116;
rom_contents[447] = 130;
rom_contents[448] = 201;
rom_contents[449] = 14;
rom_contents[450] = 208;
rom_contents[451] = 8;
rom_contents[452] = 165;
rom_contents[453] = 6;
rom_contents[454] = 157;
rom_contents[455] = 0;
rom_contents[456] = 94;
rom_contents[457] = 76;
rom_contents[458] = 116;
rom_contents[459] = 130;
rom_contents[460] = 201;
rom_contents[461] = 15;
rom_contents[462] = 208;
rom_contents[463] = 8;
rom_contents[464] = 165;
rom_contents[465] = 6;
rom_contents[466] = 157;
rom_contents[467] = 0;
rom_contents[468] = 95;
rom_contents[469] = 76;
rom_contents[470] = 116;
rom_contents[471] = 130;
rom_contents[472] = 201;
rom_contents[473] = 16;
rom_contents[474] = 208;
rom_contents[475] = 8;
rom_contents[476] = 165;
rom_contents[477] = 6;
rom_contents[478] = 157;
rom_contents[479] = 0;
rom_contents[480] = 96;
rom_contents[481] = 76;
rom_contents[482] = 116;
rom_contents[483] = 130;
rom_contents[484] = 201;
rom_contents[485] = 17;
rom_contents[486] = 208;
rom_contents[487] = 8;
rom_contents[488] = 165;
rom_contents[489] = 6;
rom_contents[490] = 157;
rom_contents[491] = 0;
rom_contents[492] = 97;
rom_contents[493] = 76;
rom_contents[494] = 116;
rom_contents[495] = 130;
rom_contents[496] = 201;
rom_contents[497] = 18;
rom_contents[498] = 208;
rom_contents[499] = 8;
rom_contents[500] = 165;
rom_contents[501] = 6;
rom_contents[502] = 157;
rom_contents[503] = 0;
rom_contents[504] = 98;
rom_contents[505] = 76;
rom_contents[506] = 116;
rom_contents[507] = 130;
rom_contents[508] = 201;
rom_contents[509] = 19;
rom_contents[510] = 208;
rom_contents[511] = 8;
rom_contents[512] = 165;
rom_contents[513] = 6;
rom_contents[514] = 157;
rom_contents[515] = 0;
rom_contents[516] = 99;
rom_contents[517] = 76;
rom_contents[518] = 116;
rom_contents[519] = 130;
rom_contents[520] = 201;
rom_contents[521] = 20;
rom_contents[522] = 208;
rom_contents[523] = 8;
rom_contents[524] = 165;
rom_contents[525] = 6;
rom_contents[526] = 157;
rom_contents[527] = 0;
rom_contents[528] = 100;
rom_contents[529] = 76;
rom_contents[530] = 116;
rom_contents[531] = 130;
rom_contents[532] = 201;
rom_contents[533] = 21;
rom_contents[534] = 208;
rom_contents[535] = 8;
rom_contents[536] = 165;
rom_contents[537] = 6;
rom_contents[538] = 157;
rom_contents[539] = 0;
rom_contents[540] = 101;
rom_contents[541] = 76;
rom_contents[542] = 116;
rom_contents[543] = 130;
rom_contents[544] = 201;
rom_contents[545] = 22;
rom_contents[546] = 208;
rom_contents[547] = 8;
rom_contents[548] = 165;
rom_contents[549] = 6;
rom_contents[550] = 157;
rom_contents[551] = 0;
rom_contents[552] = 102;
rom_contents[553] = 76;
rom_contents[554] = 116;
rom_contents[555] = 130;
rom_contents[556] = 201;
rom_contents[557] = 23;
rom_contents[558] = 208;
rom_contents[559] = 8;
rom_contents[560] = 165;
rom_contents[561] = 6;
rom_contents[562] = 157;
rom_contents[563] = 0;
rom_contents[564] = 103;
rom_contents[565] = 76;
rom_contents[566] = 116;
rom_contents[567] = 130;
rom_contents[568] = 201;
rom_contents[569] = 24;
rom_contents[570] = 208;
rom_contents[571] = 8;
rom_contents[572] = 165;
rom_contents[573] = 6;
rom_contents[574] = 157;
rom_contents[575] = 0;
rom_contents[576] = 104;
rom_contents[577] = 76;
rom_contents[578] = 116;
rom_contents[579] = 130;
rom_contents[580] = 201;
rom_contents[581] = 25;
rom_contents[582] = 208;
rom_contents[583] = 8;
rom_contents[584] = 165;
rom_contents[585] = 6;
rom_contents[586] = 157;
rom_contents[587] = 0;
rom_contents[588] = 105;
rom_contents[589] = 76;
rom_contents[590] = 116;
rom_contents[591] = 130;
rom_contents[592] = 201;
rom_contents[593] = 26;
rom_contents[594] = 208;
rom_contents[595] = 8;
rom_contents[596] = 165;
rom_contents[597] = 6;
rom_contents[598] = 157;
rom_contents[599] = 0;
rom_contents[600] = 106;
rom_contents[601] = 76;
rom_contents[602] = 116;
rom_contents[603] = 130;
rom_contents[604] = 201;
rom_contents[605] = 27;
rom_contents[606] = 208;
rom_contents[607] = 8;
rom_contents[608] = 165;
rom_contents[609] = 6;
rom_contents[610] = 157;
rom_contents[611] = 0;
rom_contents[612] = 107;
rom_contents[613] = 76;
rom_contents[614] = 116;
rom_contents[615] = 130;
rom_contents[616] = 201;
rom_contents[617] = 28;
rom_contents[618] = 208;
rom_contents[619] = 8;
rom_contents[620] = 165;
rom_contents[621] = 6;
rom_contents[622] = 157;
rom_contents[623] = 0;
rom_contents[624] = 108;
rom_contents[625] = 76;
rom_contents[626] = 116;
rom_contents[627] = 130;
rom_contents[628] = 96;
rom_contents[629] = 162;
rom_contents[630] = 48;
rom_contents[631] = 189;
rom_contents[632] = 0;
rom_contents[633] = 82;
rom_contents[634] = 157;
rom_contents[635] = 0;
rom_contents[636] = 81;
rom_contents[637] = 202;
rom_contents[638] = 208;
rom_contents[639] = 247;
rom_contents[640] = 162;
rom_contents[641] = 48;
rom_contents[642] = 189;
rom_contents[643] = 0;
rom_contents[644] = 83;
rom_contents[645] = 157;
rom_contents[646] = 0;
rom_contents[647] = 82;
rom_contents[648] = 202;
rom_contents[649] = 208;
rom_contents[650] = 247;
rom_contents[651] = 162;
rom_contents[652] = 48;
rom_contents[653] = 189;
rom_contents[654] = 0;
rom_contents[655] = 84;
rom_contents[656] = 157;
rom_contents[657] = 0;
rom_contents[658] = 83;
rom_contents[659] = 202;
rom_contents[660] = 208;
rom_contents[661] = 247;
rom_contents[662] = 162;
rom_contents[663] = 48;
rom_contents[664] = 189;
rom_contents[665] = 0;
rom_contents[666] = 85;
rom_contents[667] = 157;
rom_contents[668] = 0;
rom_contents[669] = 84;
rom_contents[670] = 202;
rom_contents[671] = 208;
rom_contents[672] = 247;
rom_contents[673] = 162;
rom_contents[674] = 48;
rom_contents[675] = 189;
rom_contents[676] = 0;
rom_contents[677] = 86;
rom_contents[678] = 157;
rom_contents[679] = 0;
rom_contents[680] = 85;
rom_contents[681] = 202;
rom_contents[682] = 208;
rom_contents[683] = 247;
rom_contents[684] = 162;
rom_contents[685] = 48;
rom_contents[686] = 189;
rom_contents[687] = 0;
rom_contents[688] = 87;
rom_contents[689] = 157;
rom_contents[690] = 0;
rom_contents[691] = 86;
rom_contents[692] = 202;
rom_contents[693] = 208;
rom_contents[694] = 247;
rom_contents[695] = 162;
rom_contents[696] = 48;
rom_contents[697] = 189;
rom_contents[698] = 0;
rom_contents[699] = 88;
rom_contents[700] = 157;
rom_contents[701] = 0;
rom_contents[702] = 87;
rom_contents[703] = 202;
rom_contents[704] = 208;
rom_contents[705] = 247;
rom_contents[706] = 162;
rom_contents[707] = 48;
rom_contents[708] = 189;
rom_contents[709] = 0;
rom_contents[710] = 89;
rom_contents[711] = 157;
rom_contents[712] = 0;
rom_contents[713] = 88;
rom_contents[714] = 202;
rom_contents[715] = 208;
rom_contents[716] = 247;
rom_contents[717] = 162;
rom_contents[718] = 48;
rom_contents[719] = 189;
rom_contents[720] = 0;
rom_contents[721] = 90;
rom_contents[722] = 157;
rom_contents[723] = 0;
rom_contents[724] = 89;
rom_contents[725] = 202;
rom_contents[726] = 208;
rom_contents[727] = 247;
rom_contents[728] = 162;
rom_contents[729] = 48;
rom_contents[730] = 189;
rom_contents[731] = 0;
rom_contents[732] = 91;
rom_contents[733] = 157;
rom_contents[734] = 0;
rom_contents[735] = 90;
rom_contents[736] = 202;
rom_contents[737] = 208;
rom_contents[738] = 247;
rom_contents[739] = 162;
rom_contents[740] = 48;
rom_contents[741] = 189;
rom_contents[742] = 0;
rom_contents[743] = 92;
rom_contents[744] = 157;
rom_contents[745] = 0;
rom_contents[746] = 91;
rom_contents[747] = 202;
rom_contents[748] = 208;
rom_contents[749] = 247;
rom_contents[750] = 162;
rom_contents[751] = 48;
rom_contents[752] = 189;
rom_contents[753] = 0;
rom_contents[754] = 93;
rom_contents[755] = 157;
rom_contents[756] = 0;
rom_contents[757] = 92;
rom_contents[758] = 202;
rom_contents[759] = 208;
rom_contents[760] = 247;
rom_contents[761] = 162;
rom_contents[762] = 48;
rom_contents[763] = 189;
rom_contents[764] = 0;
rom_contents[765] = 94;
rom_contents[766] = 157;
rom_contents[767] = 0;
rom_contents[768] = 93;
rom_contents[769] = 202;
rom_contents[770] = 208;
rom_contents[771] = 247;
rom_contents[772] = 162;
rom_contents[773] = 48;
rom_contents[774] = 189;
rom_contents[775] = 0;
rom_contents[776] = 95;
rom_contents[777] = 157;
rom_contents[778] = 0;
rom_contents[779] = 94;
rom_contents[780] = 202;
rom_contents[781] = 208;
rom_contents[782] = 247;
rom_contents[783] = 162;
rom_contents[784] = 48;
rom_contents[785] = 189;
rom_contents[786] = 0;
rom_contents[787] = 96;
rom_contents[788] = 157;
rom_contents[789] = 0;
rom_contents[790] = 95;
rom_contents[791] = 202;
rom_contents[792] = 208;
rom_contents[793] = 247;
rom_contents[794] = 162;
rom_contents[795] = 48;
rom_contents[796] = 189;
rom_contents[797] = 0;
rom_contents[798] = 97;
rom_contents[799] = 157;
rom_contents[800] = 0;
rom_contents[801] = 96;
rom_contents[802] = 202;
rom_contents[803] = 208;
rom_contents[804] = 247;
rom_contents[805] = 162;
rom_contents[806] = 48;
rom_contents[807] = 189;
rom_contents[808] = 0;
rom_contents[809] = 98;
rom_contents[810] = 157;
rom_contents[811] = 0;
rom_contents[812] = 97;
rom_contents[813] = 202;
rom_contents[814] = 208;
rom_contents[815] = 247;
rom_contents[816] = 162;
rom_contents[817] = 48;
rom_contents[818] = 189;
rom_contents[819] = 0;
rom_contents[820] = 99;
rom_contents[821] = 157;
rom_contents[822] = 0;
rom_contents[823] = 98;
rom_contents[824] = 202;
rom_contents[825] = 208;
rom_contents[826] = 247;
rom_contents[827] = 162;
rom_contents[828] = 48;
rom_contents[829] = 189;
rom_contents[830] = 0;
rom_contents[831] = 100;
rom_contents[832] = 157;
rom_contents[833] = 0;
rom_contents[834] = 99;
rom_contents[835] = 202;
rom_contents[836] = 208;
rom_contents[837] = 247;
rom_contents[838] = 162;
rom_contents[839] = 48;
rom_contents[840] = 189;
rom_contents[841] = 0;
rom_contents[842] = 101;
rom_contents[843] = 157;
rom_contents[844] = 0;
rom_contents[845] = 100;
rom_contents[846] = 202;
rom_contents[847] = 208;
rom_contents[848] = 247;
rom_contents[849] = 162;
rom_contents[850] = 48;
rom_contents[851] = 189;
rom_contents[852] = 0;
rom_contents[853] = 102;
rom_contents[854] = 157;
rom_contents[855] = 0;
rom_contents[856] = 101;
rom_contents[857] = 202;
rom_contents[858] = 208;
rom_contents[859] = 247;
rom_contents[860] = 162;
rom_contents[861] = 48;
rom_contents[862] = 189;
rom_contents[863] = 0;
rom_contents[864] = 103;
rom_contents[865] = 157;
rom_contents[866] = 0;
rom_contents[867] = 102;
rom_contents[868] = 202;
rom_contents[869] = 208;
rom_contents[870] = 247;
rom_contents[871] = 162;
rom_contents[872] = 48;
rom_contents[873] = 189;
rom_contents[874] = 0;
rom_contents[875] = 104;
rom_contents[876] = 157;
rom_contents[877] = 0;
rom_contents[878] = 103;