EarthBound spawn line/RNG display

while true do
    --Spawn line section
    xLoc = memory.read_s16_le(0x000BBE)
    yLoc = memory.read_s16_le(0x000BFA)

    spawnLineX = xLoc % 64
    spawnLineY = (yLoc + 16) % 64

    for i=-63,300,64 do
        gui.drawLine(i-spawnLineX, -1, i-spawnLineX, 225, 0xB0FFFFFF)
    end

    for i=-65,300,64 do
        gui.drawLine(-1, i-spawnLineY, 257, i-spawnLineY, 0xB0FFFFFF)
    end

    --RNG values on screen section
    RNG1 = string.upper(string.format("%02x", memory.readbyte(0x000024)))
    RNG2 = string.upper(string.format("%02x", memory.readbyte(0x000026)))
    RNG3 = string.upper(string.format("%04x", memory.read_s16_le(0x7E4A7A),"System Bus"))
    gui.pixelText(220, 8, RNG1 .. ", " .. RNG2 .. "\n" .. RNG3)

    emu.frameadvance()

end