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Document split32bit and merge32bit

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Kimmo Kulovesi
2019-12-13 20:17:36 +02:00
parent a7f1742622
commit 509781c28e
1 changed files with 16 additions and 3 deletions
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README.md
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@@ -120,13 +120,16 @@ even gigabytes.
Utilities
=========
Two additional utilities are provided to help working with ROM images:
Four additional utilities are provided to help working with ROM images:
* `split16bit` – splits a 16-bit ROM binary into two 8-bit halves
* `merge16bit` – merges two 8-bit ROM binary halves into a single 16-bit file
* `split32bit` – splits a 32-bit ROM binary into four 8-bit parts
* `merge32bit` – merges four 8-bit ROM binary parts into a single 32-bit file
Both of these take the filenames of the high and low halves with the
arguments `-l low.bin` and `-h high.bin`, respectively. For example:
Both 16-bit utilities take the filenames of the high and low halves with the
arguments `-l low.bin` and `-h high.bin`, respectively. The bytes are in
little endian order, i.e., the one with the lowest address is the "low" half.
# Split 16bit.bin into low.bin and high.bin:
split16bit -i 16bit.bin -l low.bin -h high.bin
@@ -134,5 +137,15 @@ arguments `-l low.bin` and `-h high.bin`, respectively. For example:
# Merge low.bin and high.bin into 16bit.bin:
merge16bit -o 16bit.bin -l low.bin -h high.bin
Both 32-bit utilities take the filenames of the four 8-bit files with the
arguments `-0`, `-1`, `-2`, and `-3`, with byte 0 being the one with the
lowest address, i.e., the bytes are in little endian order.
# Split 32bit.bin into a.bin, b.bin, c.bin, and d.bin
split32bit -i 32bit.bin -0 a.bin -1 b.bin -2 c.bin -3 d.bin
# Merge a.bin, b.bin, c.bin, and d.bin into 32bit.bin
merge32bit -o 32bit.bin -0 a.bin -1 b.bin -2 c.bin -3 d.bin
These utilities have nothing to with IHEX as such, but they are so small that
it didn't seem worth the bother to release them separately.