Files
tsvm/assets/bios1.js
2020-10-29 11:52:31 +09:00

85 lines
3.3 KiB
JavaScript

println("TERRAN Megatrends inc.");
//println("Main RAM:"+(system.maxmem() >> 10)+" KBytes");
///////////////////////////////////////////////////////////////////////////////
// Perform memtest
let memptr = 0;
const memtestptn = [
// Overclockers will LOVE this!
//[0x00,0x00,0x00,0x00 , 0xFF,0xFF,0xFF,0xFF , 0x00,0x00,0x00,0x00 , 0xFF,0xFF,0xFF,0xFF],
//[0xAA,0x55,0xAA,0x55 , 0xAA,0x55,0xAA,0x55 , 0xAA,0x55,0xAA,0x55 , 0xAA,0x55,0xAA,0x55],
//[0x00,0xFF,0x00,0xFF , 0xFF,0x00,0xFF,0x00 , 0x00,0xFF,0x00,0xFF , 0xFF,0x00,0xFF,0x00],
//[0x69,0x69,0x69,0x69 , 0xA5,0xA5,0xA5,0xA5 , 0x69,0x69,0x69,0x69 , 0xA5,0xA5,0xA5,0xA5],
//[0x0F,0x0F,0x0F,0x0F , 0x1E,0x1E,0x1E,0x1E , 0x3C,0x3C,0x3C,0x3C , 0x78,0x78,0x78,0x78],
//[0xC7,0x1C,0x71,0xC7 , 0x8E,0x38,0xE3,0x8E , 0x1C,0x71,0xC7,0x1C , 0x38,0xE3,0x8E,0x38],
//[0x71,0xC7,0x1C,0x71 , 0xE3,0x8E,0x38,0xE3 , 0x01,0x02,0x04,0x08 , 0x10,0x20,0x40,0x80],
//[0x00,0x00,0xFF,0xFF , 0x00,0x00,0xFF,0xFF , 0x00,0x01,0xFF,0xFE , 0x00,0x01,0xFF,0xFE],
//[0x00,0x03,0xFF,0xFC , 0x00,0x03,0xFF,0xFC , 0x00,0x07,0xFF,0xF8 , 0x00,0x07,0xFF,0xF8],
//[0x00,0x0F,0xFF,0xF0 , 0x00,0x0F,0xFF,0xF0 , 0x00,0x1F,0xFF,0xE0 , 0x00,0x1F,0xFF,0xE0],
//[0x00,0x3F,0xFF,0xC0 , 0x00,0x3F,0xFF,0xC0 , 0x00,0x7F,0xFF,0x80 , 0x00,0x7F,0xFF,0x80],
//[0x00,0xFF,0xFF,0x00 , 0x00,0xFF,0xFF,0x00 , 0x01,0xFF,0xFE,0x00 , 0x01,0xFF,0xFE,0x00],
//[0x03,0xFF,0xFC,0x00 , 0x03,0xFF,0xFC,0x00 , 0x07,0xFF,0xF8,0x00 , 0x07,0xFF,0xF8,0x00],
//[0x0F,0xFF,0xF0,0x00 , 0x0F,0xFF,0xF0,0x00 , 0x1F,0xFF,0xE0,0x00 , 0x1F,0xFF,0xE0,0x00],
//[0x3F,0xFF,0xC0,0x00 , 0x3F,0xFF,0xC0,0x00 , 0x7F,0xFF,0x80,0x00 , 0x7F,0xFF,0x80,0x00],
[0x00,0xFF,0xAA,0x55 , 0x69,0x0F,0xA5,0x1E , 0xC7,0x71,0x8E,0xE3 , 0xCA,0xFE,0xBA,0xBE],
[0xFF,0xFF,0xFF,0xFF , 0xFF,0xFF,0xFF,0xFF , 0xFF,0xFF,0xFF,0xFF , 0xFF,0xFF,0xFF,0xFF]
];
con.move(2,1);
print("000 KB OK")
try {
while (memptr < (8 << 20)) {
// just print a number
con.move(2,1);
var memptrtext = ""+((memptr + 1) >> 10);
print((memptrtext < 10) ? "00"+memptrtext : (memptrtext < 100) ? "0"+memptrtext : memptrtext);
// perform memory test
for (var ptn = 0; ptn < memtestptn.length; ptn++) {
for (var bi = 0; bi < memtestptn[ptn].length; bi++) {
sys.poke(memptr + bi, memtestptn[ptn][bi]);
if (memtestptn[ptn][bi] != sys.peek(memptr + bi)) throw "Memory Error";
}
for (var bi = 0; bi < memtestptn[ptn].length; bi++) {
sys.poke(memptr + bi, 255 - memtestptn[ptn][bi]);
if (255 - memtestptn[ptn][bi] != sys.peek(memptr + bi)) throw "Memory Error";
}
}
memptr += memtestptn[0].length;
}
}
catch (e) {
if (e == "Memory Error") {
println(" Memory Error");
}
else {
println(" KB OK!");
}
}
///////////////////////////////////////////////////////////////////////////////
// probe bootable device
var _BIOS = {};
// Syntax: [Port, Drive-number]
// Port #0-3: Serial port 1-4
// #4+ : Left for future extension
// Drive-number always starts at 1
_BIOS.FIRST_BOOTABLE_PORT = [0,1]; // ah screw it
Object.freeze(_BIOS);
///////////////////////////////////////////////////////////////////////////////
con.move(4,1);