diff options
| -rw-r--r-- | rom2cart.1 | 34 |
1 files changed, 25 insertions, 9 deletions
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. -.TH "ROM2CART" 1 "2022-08-29" "0.2.0" "Urchlay's Atari 8-bit Tools" +.TH "ROM2CART" 1 "2024-04-22" "0.2.1" "Urchlay's Atari 8-bit Tools" .SH NAME rom2cart \- Convert a raw ROM image to an Atari800 CART image, or vice versa .\" RST source for rom2cart(1) man page. Convert with: @@ -43,7 +43,7 @@ rom2cart \- Convert a raw ROM image to an Atari800 CART image, or vice versa \fBcart2rom\fP [\fIinfile\fP] [\fIoutfile\fP] .SH DESCRIPTION .sp -\fBrom2cart\fP converts between raw ROM dumps and Atari800 \fB\&.CAR\fP +\fBrom2cart\fP converts between raw ROM dumps and Atari800 \fB\&.CAR\fP images. Despite the name, conversion can be done in either direction. \fBcart2rom\fP is equivalent to \fBrom2cart \-r\fP\&. .sp @@ -57,7 +57,7 @@ content), and (optional) user\-supplied type number or name (\fB\-t\fP). If \fBrom2cart\fP is unable to narrow the selection down to one image type, it will "guess" by choosing the lowest\-numbered type that matches the given parameters (unless \fB\-n\fP is given to prevent -this behavior). +this behavior, in which case it will exit with an error message). .sp When writing a \fB\&.CAR\fP file, \fBrom2cart\fP will calculate the checksum automatically and store it in the \fBCART\fP header (unless \fB\-C\fP is @@ -142,6 +142,13 @@ may define a use for them. Normally, \fBrom2cart\fP sets them to all zeroes. \fIdata\fP is a 32\-bit unsigned value, and may be given in hex (prefixed with $ or 0x) or decimal (no prefix). This option has no effect if the output is a raw dump (\fB\-r\fP option). +.TP +.B \-H +Test the code\-detection heuristics: examine the first 8K of the ROM and +look for writes to $D2xx (8\-bit computer) or $E8xx (5200) to guess the +machine type for the ROM. This option exists only for testing: normally, +the machine type gets guessed by the cartridge option bytes, and the +code\-detection is only done if the option byte tests are inconclusive. .UNINDENT .SH NOTES .sp @@ -155,7 +162,7 @@ be constructed from \fIinfile\fP by replacing the filename extension with is no extension. .sp \fBrom2cart\fP contains an internal database of image types. The current -version uses the list from Atari800 v2.0.3 (types 1\-43). If you +version uses the list from Atari800 v5.2.0 (types 1\-103 and 160). If you need to create a \fB\&.CAR\fP image of a type not supported in this version of \fBrom2cart\fP, you can use the \fB\-T\fP option. Alternatively, look for a newer version of \fBrom2cart\fP\&. If no new version exists, bug the @@ -177,15 +184,24 @@ A \fB\&.CAR\fP image consists of a 16\-byte header followed by the ROM data. .sp The first 4 bytes contain \(aqC\(aq \(aqA\(aq \(aqR\(aq \(aqT\(aq in ASCII. .sp -The next 4 bytes contain the cartridge type in MSB (aka -\fIbig\-endian\fP) format. +The next 4 bytes contain the cartridge type in MSB (aka \fIbig\-endian\fP) +32\-bit integer format. .sp -The next 4 bytes contain cartridge checksum in MSB format (ROM only). +The next 4 bytes contain cartridge checksum in MSB format (ROM only; +the header is not checksummed). .sp The next 4 bytes are currently unused (zero). .sp -The rest of the file contains the ROM data: 4, 8, 16, 32, 40, 64, 128, -256, 512 or 1024 kilobytes. +The rest of the file contains the ROM data, up to 32Mbytes as of +Atari800 5.2.0. The cartridge type determines the amount of data; see +\fIcart.txt\fP or the output of \fBrom2cart \-l\fP\&. +.sp +The latest version of \fIcart.txt\fP can be found at: +.INDENT 0.0 +.INDENT 3.5 +\fI\%https://raw.githubusercontent.com/atari800/atari800/master/DOC/cart.txt\fP +.UNINDENT +.UNINDENT .SH HEURISTICS .sp If none of the \fB\-m\fP, \fB\-n\fP, \fB\-T\fP options are given, the machine type is |