Quick iPXE script:
params && param vram ${vram} && chain -a http://b800.org##params && echo b800.org/${b800id}
usage details
Formats: b800 | b800hex | b800base64 | uri | html | ansi | ascii | utf8 | cp437 | cp437hex | png
Booting from ROM... iPXE initialising devices...ok iPXE 1.0.0+ (909cb) -- Open Source Network Boot Firmware -- http://ipxe.org Features: DNS HTTP iSCSI TFTP SRP AoE ELF MBOOT PXE bzImage Menu PXEXT Configuring (net0 52:54:00:99:01:01).... ok iPXE> exit http://b800.org/pattern.ipxe?... ok 0.........1.........2.........3.........4.........5.........6.........7......... 01234567890123456789012345678901234567890123456789012345678901234567890123456789 0x40 ABCDEFGHIJKLMNOPQRSTUVWXYZ[\] - row done - 0x5d + 0x60 abcdefghijklmnopqrstuvwxyz{|} - row done - 0x7d + 0x80 üéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦ ╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ - row done - 0xff + 0x0 ☺☻♥♦♣○ ♫☼►◄↕‼¶§▬↨↑↓→↔▲▼ !"#$%&'()*+, - row done - 0x2c + 0x2e /0123456789:;<=>?@ - row done - 0x40 + http://b800.org/?... ok