HackMac: /* Other Headered Dump File Formats */ correct country for Millers Graphics

2016-04-10T09:15:29Z

Other Headered Dump File Formats: correct country for Millers Graphics

← Older revision		Revision as of 09:15, 10 April 2016
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	== Other Headered Dump File Formats ==		== Other Headered Dump File Formats ==
	* [[GRAM Kracker format \|GRAM Kracker]] (Millers Graphics, ~~West-Germany~~)		* [[GRAM Kracker format \|GRAM Kracker]] (Millers Graphics, USA)
	* [[GRAM Simulator format\|GRAM Simulator]] (TI Gebruikers Groep, Netherlands)		* [[GRAM Simulator format\|GRAM Simulator]] (TI Gebruikers Groep, Netherlands)
	* [[Module Simulator format\|Module Simulator]] (Texas Instruments)		* [[Module Simulator format\|Module Simulator]] (Texas Instruments)

HackMac: initial content

2016-04-10T09:12:16Z

initial content

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The GRAM format is a headered [[Formats#ROM_dump_formats|ROM dump format]] from the cartridge memory chips, introduced by Mechatronic in West-Germany.

The contents of these files are taken from the ROMs and GROMs of the cartridge, so there must be meta-data about the origin of the data. In fact, these files are commonly 8198 bytes long, that is, 6 bytes plus the common size of a ROM (8K).

{| style="width:60em; text-align:center"
|-
| style="width:4em" |
| style="width:7em" | 0
| style="width:7em" | 1
| style="width:7em" | 2
| style="width:7em" | 3
| style="width:7em" | 4
| style="width:7em" | 5
| style="width:7em" | 6
| style="width:7em" | 7
|-
| 0x00
| colspan="2" style="border: 1px solid black; padding:0.2ex" | Type
| colspan="2" style="border: 1px solid black; padding:0.2ex" | Address
| colspan="2" style="border: 1px solid black; padding:0.2ex" | Length
| colspan="2" style="border: 1px solid black; padding:0.2ex" | Data
|-
| 0x08
| rowspan="3" colspan="8" style="border: 1px solid black; padding:0.2ex" | Data
|-
| ...
|-
| end
|}

'''Type'''

* A5A5 indicates a GROM file
* 5A5A indicates a ROM file

'''Address'''

* For GROM it is the start address where data is loaded from
* For ROM it is a bank access address (>6000 - ROM >6000, >6002 - ROM >7000 bank 2, >6004 - ROM >7000 bank 3)

'''Length'''

This word specifies the length of data. File size should be the sum of the header size (6 bytes) plus the length of data. If the file is larger, only the given length of data is used.

== Other Headered Dump File Formats ==
* [[GRAM Kracker format |GRAM Kracker]] (Millers Graphics, West-Germany)
* [[GRAM Simulator format|GRAM Simulator]] (TI Gebruikers Groep, Netherlands)
* [[Module Simulator format|Module Simulator]] (Texas Instruments)
* [[Memory Image format E/A Module|Memory Image E/A Module]] (Texas Instruments)
* [[Memory Image format Easybug|Memory Image Easybug]] (Texas Instruments)
* [[RAM Module Handler format|RAM Module Handler]] (E.P. Rebel, Netherlands)
* [[DSR RAM Handler format|DSR RAM Handler]] (E.P. Rebel, Netherlands)

[[Category:File Format]]

GRAM Karte format - Revision history

HackMac: /* Other Headered Dump File Formats */ correct country for Millers Graphics

HackMac: initial content