PCjr Cartridge (JRC) image file format version 1.0 description


Header (512 bytes):

+  0  signature DB "PCjr Cartridge image file",0Dh,0Ah ;file signature
+ 27  creator   DB 30 DUP (20h) ;creator signature
                              ;(for example: "ApH's JRIPCART version 1.0    ")
+ 57  CR        DB 0Dh,0Ah
+ 59  comment   DB 400 DUP (1Ah) ;comment (contained program)
+459  EOF       DB 1Ah ;End Of File (for DOS "type" command)
+460  version   DB 1,0 ;Image version number
+462  address   DW ? ;segment address (little endian) at which the beginning
                     ;of the cartridge appears in the PCjr's memory map.
+464  adrmask   DW ? ;a "1" at a given position means a "don't care" at the
                     ;same position in the address field (this address bit is
                     ;not decoded by the cartridge logic).
+466  reserved  DB 46 DUP (0) ;reserved for future use

Actual cartridge data follow.

---- End of PCjr Cartridge (JRC) image file format version 1.0 description ----

                                                Vincent "ApH" Joguin.
