Stellar 7 text font at 0x7900

I found the text font at 0x7900. It goes from character 32 (space) to 127. 126 and 127 are tiny flag symbols.

and we can write some lua to write some text to the screen:

cpu = manager:machine().devices[":maincpu"];mem = cpu.spaces["program"]

function calc(line) return line % 8 * 1024 + math.floor(line / 64) * 40 + math.floor((line%64) / 8) * 128 +8192 end

function writechar(c,x,y) for i=0,7 do  mem:write_u8(calc(y+i)+x,mem:read_u8(0x7900+i+8*(string.byte(c)-32))) end end

for c=32,127 do writechar(string.char(c),c % 40 ,math.floor(c/40)*8) end

mystr = "ABCDEFGHJKLMNOPQRSTUVWXYZ[]ab"..string.char(126)..string.char(127) ; for j = 1,string.len(mystr) do writechar(string.sub(mystr,j,j),j,16*8) end

mystr = "STELLA! STELLA!  "..string.char(126)..string.char(127) ; for j = 1,string.len(mystr) do writechar(string.sub(mystr,j,j),j,17*8) end