Commodore 64 binary executable - Revision history

Dan Tobias: /* Sample files */

2015-06-02T13:11:44Z

‎Sample files

Jsummers: /* Sample files */

2014-10-18T00:52:22Z

‎Sample files

Dan Tobias at 00:19, 25 February 2014

2014-02-25T00:19:31Z

Dan Tobias at 16:15, 18 January 2014

2014-01-18T16:15:06Z

Dan Tobias at 13:27, 15 December 2013

2013-12-15T13:27:48Z

Dan Tobias at 17:11, 21 May 2013

2013-05-21T17:11:52Z

Jonnosan: add ref to CBMFS directory structure

2013-05-20T23:27:11Z

add ref to CBMFS directory structure

Jonnosan at 21:51, 20 May 2013

2013-05-20T21:51:46Z

Dan Tobias at 19:14, 1 February 2013

2013-02-01T19:14:40Z

Dan Tobias at 19:12, 1 February 2013

2013-02-01T19:12:53Z

@@ Line 13: / Line 13: @@
 * http://www.zimmers.net/anonftp/pub/cbm/c64/index.html ...
 * [http://sos.gd/flappy64/ Flappy Bird implementation for C64]
 [[Category:Commodore computers]]

@@ Line 11: / Line 11: @@
 == Sample files ==
 * [http://sos.gd/flappy64/ Flappy Bird implementation for C64]
 [[Category:Commodore computers]]

@@ Line 9: / Line 9: @@
 == Programs and utilities ==
 * [http://search.cpan.org/~pawelkrol/D64-File-PRG-0.02/lib/D64/File/PRG.pm D64::File::PRG library for Perl to handle PRG files.]
 [[Category:Commodore computers]]

@@ Line 3: / Line 3: @@
 |extensions={{ext|prg}}
 }}
-A '''[[Commodore 64 binary executable]]''' is intended to be run on a Commodore 64 or on another machine that is emulating one. These files are often stored with the extension .prg when kept in filesystems that distinguish types by extension. (In the original Commodore environment, they generally didn't have an extension but had file type "PRG" in the [[CBMFS#CBM_DOS_Directory_Structure | directory structure]].)
+A '''Commodore 64 binary executable''' is intended to be run on a Commodore 64 or on another machine that is emulating one. These files are often stored with the extension .prg when kept in filesystems that distinguish types by extension. (In the original Commodore environment, they generally didn't have an extension but had file type "PRG" in the [[CBMFS#CBM_DOS_Directory_Structure | directory structure]].) Files of this type might be binary executables, tokenized BASIC, or other sorts of data files; even text files are sometimes stored in PRG format instead of TXT, so the file type doesn't give much information about what sort of data it is.
 The first two bytes in a PRG file are the memory address that the file should be loaded into (in [[Endianness|little-endian]] format). For a C64 [[Commodore BASIC tokenized file]], intended to be loaded into $801, these bytes are $01,$08. Note that these bytes will be ignored (i.e. a PRG file will be loaded into $801) UNLESS the LOAD command had a non-zero parameter after the device number. i.e. LOAD "*",8 will load a file from device 8 (the typical device number for a disk drive) into $801, while LOAD "*",8,1 will load a file into whatever memory address is specified by the first 2 bytes of the PRG.

@@ Line 3: / Line 3: @@
 |extensions={{ext|prg}}
 }}
-Binary files intended to be executed on a Commodore 64 (or emulator of it) are often stored with the extension .prg. (In the original Commodore environment, they generally didn't have an extension but had file type "PRG" in the [[CBMFS#CBM_DOS_Directory_Structure | directory structure]].)
+The first two bytes in a PRG file are the memory address that the file should be loaded into (in [[Endianness|little-endian]] format). For a C64 [[Commodore BASIC tokenized file]], intended to be loaded into $801, these bytes are $01,$08. Note that these bytes will be ignored (i.e. a PRG file will be loaded into $801) UNLESS the LOAD command had a non-zero parameter after the device number. i.e. LOAD "*",8 will load a file from device 8 (the typical device number for a disk drive) into $801, while LOAD "*",8,1 will load a file into whatever memory address is specified by the first 2 bytes of the PRG.
-−
 The first two bytes in a PRG file are the memory address that the file should be loaded into (in little-endian format). For a C64 [[Commodore BASIC tokenized file]], intended to be loaded into $801, these bytes are $01,$08. Note that these bytes will be ignored (i.e. a PRG file will be loaded into $801) UNLESS the LOAD command had a non-zero parameter after the device number. i.e. LOAD "*",8 will load a file from device 8 (the typical device number for a disk drive) into $801, while LOAD "*",8,1 will load a file into whatever memory address is specified by the first 2 bytes of the PRG.
 == Programs and utilities ==

@@ Line 4: / Line 4: @@
 }}
-Binary files intended to be executed on a Commodore 64 (or emulator of it) are often stored with the extension .prg. (In the original Commodore environment, they generally didn't have an extension but had file type "PRG" in the directory structure.)
+Binary files intended to be executed on a Commodore 64 (or emulator of it) are often stored with the extension .prg. (In the original Commodore environment, they generally didn't have an extension but had file type "PRG" in the [[CBMFS#CBM_DOS_Directory_Structure | directory structure]].)
 The first two bytes in a PRG file are the memory address that the file should be loaded into (in little-endian format). For a C64 [[Commodore BASIC tokenized file]] file, intended to be loaded into $801, these bytes are $01,$08. Note that these bytes will be ignored (i.e. a PRG file will be loaded into $801) UNLESS the LOAD command had a non-zero parameter after the device number. i.e. LOAD "*",8 will load a file from device 8 (the typical device number for a disk drive) into $801, while LOAD "*",8,1 will load a file into whatever memory address is specified by the first 2 bytes of the PRG.