[hcoop/debian/mlton.git] / doc / guide / src / RunningOnHPPA.adoc

RunningOnHPPA
=============

MLton runs fine on the HPPA architecture.

== Notes ==

* When compiling for HPPA, MLton targets the 32-bit HPPA architecture.

* When compiling for HPPA, MLton doesn't support native code
generation (`-codegen native`).  Hence, performance is not as good as
it might be and compile times are longer.  Also, the quality of code
generated by `gcc` is important.  By default, MLton calls `gcc -O1`.
You can change this by calling MLton with `-cc-opt -O2`.

* When compiling for HPPA, MLton uses `-align 8` by default.  While
this speeds up reals, it also may increase object sizes.  If your
program does not make significant use of reals, you might see a
speedup with `-align 4`.
Commit	Line	Data
7f918cf1 CE	1	RunningOnHPPA
	2	=============
	3
	4	MLton runs fine on the HPPA architecture.
	5
	6	== Notes ==
	7
	8	* When compiling for HPPA, MLton targets the 32-bit HPPA architecture.
	9
	10	* When compiling for HPPA, MLton doesn't support native code
	11	generation (`-codegen native`). Hence, performance is not as good as
	12	it might be and compile times are longer. Also, the quality of code
	13	generated by `gcc` is important. By default, MLton calls `gcc -O1`.
	14	You can change this by calling MLton with `-cc-opt -O2`.
	15
	16	* When compiling for HPPA, MLton uses `-align 8` by default. While
	17	this speeds up reals, it also may increase object sizes. If your
	18	program does not make significant use of reals, you might see a
	19	speedup with `-align 4`.