| commit | d28579a5f1dafe31642fe21281ea4718af3d529f | |
| author | Alastair Bridgewater <alastair.bridgewater@gmail.com> | |
| Tue, 24 Nov 2015 22:45:34 +0000 (24 17:45 -0500) | ||
| committer | Alastair Bridgewater <alastair.bridgewater@gmail.com> | |
| Mon, 30 Nov 2015 20:06:41 +0000 (30 15:06 -0500) | ||
| tree | 7a0478932dd8e6ef780e7b7eb2aa8c42793de76c | treesnapshot (tar.gz zip) |
| parent | 64b053a8952a2d4112fde0edd15b95cab45ee8b2 | commitdiff |
hppa: Use LDO instead of ADDI for stack-address arithmetic
* ADDI has a (signed-byte 11) immediate field, while LDO has a
(signed-byte 14) immediate field. Using LDO instead of ADDI means
that we can have stack frames larger than about 1 kilobyte (which
is a limit that we've already seen some test cases run up against).
* The new limit is probably around 8KB. If that's not enough,
then we can start doing things with larger values in temporary
registers.
* ADDI has a (signed-byte 11) immediate field, while LDO has a
(signed-byte 14) immediate field. Using LDO instead of ADDI means
that we can have stack frames larger than about 1 kilobyte (which
is a limit that we've already seen some test cases run up against).
* The new limit is probably around 8KB. If that's not enough,
then we can start doing things with larger values in temporary
registers.
| src/compiler/hppa/call.lisp | diffblobblamehistory | |
| src/compiler/hppa/nlx.lisp | diffblobblamehistory |