HR (TRS-80)

File Format
Name	HR (TRS-80)
Ontology	Electronic File Formats Graphics HR (TRS-80)
Extension(s)	.hr

HR (High-Resolution graphics) is an image format that was used on TRS-80 computers. It is a bi-level 640×240 raw bitmap format. It is probably associated with the Grafyx expansion board and/or similar products, without which it was impossible to satisfactorily display such images.

HR files are usually exactly 19200 bytes in size, though we've observed some that are slightly larger.

Software

• Deark
• XnView tries to display HR images, but the version we tested apparently does not work correctly

Sample files

• http://www.classiccmp.org/cpmarchives/trs80/Software/Model%204/ ...
  • A/Assorted HR Files.zip (some images are adult-oriented)
  • G/Geography*.zip
  • H/High Resolution Graphics Files.zip (some images are adult-oriented)

Links

• The Model 4 Grafyx Solution
• Links to various utilities for dealing with TRS-80 data