Difference between revisions of "83Plus:BCALLs:808D"
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| + | [[Category:83Plus:BCALLs:By Name:Cryptography|MD5Init]] [[Category:83Plus:BCALLs:By Name|MD5Init]] [[Category:83Plus:BCALLs:By Address|808D - MD5Init]] | ||
== Synopsis == | == Synopsis == | ||
'''Official Name:''' MD5Init | '''Official Name:''' MD5Init | ||
| Line 6: | Line 7: | ||
'''BCALL Address:''' 808D | '''BCALL Address:''' 808D | ||
| − | Initializes the | + | Initializes the MD5 RAM areas |
=== Inputs === | === Inputs === | ||
| Line 16: | Line 17: | ||
=== Destroys === | === Destroys === | ||
| − | + | None | |
== Comments == | == Comments == | ||
| − | This B_CALL initializes the MD5 memory areas | + | This B_CALL initializes the MD5 memory areas, after which you can use [[83Plus:BCALLs:8090|MD5Update]] and [[83Plus:BCALLs:8018|MD5Final]] to build up a complete MD5 hash. |
== Example == | == Example == | ||
| − | + | B_CALL MD5Init | |
| − | ld bc, | + | ld bc,14 |
| − | ld hl, | + | ld hl,String |
| − | B_CALL | + | B_CALL [[83Plus:BCALLs:8090|MD5Update]] |
| + | B_CALL [[83Plus:BCALLs:8018|MD5Final]] | ||
| + | ; should give: f96b697d7cb7938d525a2f31aaf161d0 | ||
| + | |||
| + | String: .db "message digest" | ||
Latest revision as of 14:34, 30 March 2005
Synopsis
Official Name: MD5Init
Other Name: InitializeMD5
BCALL Address: 808D
Initializes the MD5 RAM areas
Inputs
None
Outputs
- 8269: 8 bytes will be zero'ed
- 8292: Loads the following bytes in this area 01h,23h,45h,67h,89h,ABh,CDh,EFh,FEh,DCh,BAh,98h,76h,54h,32h,10h
Destroys
None
Comments
This B_CALL initializes the MD5 memory areas, after which you can use MD5Update and MD5Final to build up a complete MD5 hash.
Example
B_CALL MD5Init ld bc,14 ld hl,String B_CALL MD5Update B_CALL MD5Final ; should give: f96b697d7cb7938d525a2f31aaf161d0 String: .db "message digest"
