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authorJoel Sherrill <joel.sherrill@OARcorp.com>2003-09-26 21:56:41 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2003-09-26 21:56:41 +0000
commit3b1c1004484bf6a5212fe1d55cb2d6d3385ae7d0 (patch)
treec1e56503d99d374dae488578b14b09cc0e3de6a1 /cpukit/score/cpu/no_cpu/rtems/score/cpu.h
parent2003-09-26 Joel Sherrill <joel@OARcorp.com> (diff)
downloadrtems-3b1c1004484bf6a5212fe1d55cb2d6d3385ae7d0.tar.bz2
2003-09-26 Joel Sherrill <joel@OARcorp.com>
* rtems/score/cpu.h: Obsoleting HP PA-RISC port and removing all references.
Diffstat (limited to 'cpukit/score/cpu/no_cpu/rtems/score/cpu.h')
-rw-r--r--cpukit/score/cpu/no_cpu/rtems/score/cpu.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
index 1f4f72d5e3..a40e8863a6 100644
--- a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
+++ b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
@@ -192,10 +192,15 @@ extern "C" {
* If TRUE, then the RTEMS_FLOATING_POINT task attribute is assumed.
* If FALSE, then the RTEMS_FLOATING_POINT task attribute is followed.
*
- * So far, the only CPU in which this option has been used is the
- * HP PA-RISC. The HP C compiler and gcc both implicitly use the
- * floating point registers to perform integer multiplies. If
- * a function which you would not think utilize the FP unit DOES,
+ * So far, the only CPUs in which this option has been used are the
+ * HP PA-RISC and PowerPC. On the PA-RISC, The HP C compiler and
+ * gcc both implicitly used the floating point registers to perform
+ * integer multiplies. Similarly, the PowerPC port of gcc has been
+ * seen to allocate floating point local variables and touch the FPU
+ * even when the flow through a subroutine (like vfprintf()) might
+ * not use floating point formats.
+ *
+ * If a function which you would not think utilize the FP unit DOES,
* then one can not easily predict which tasks will use the FP hardware.
* In this case, this option should be TRUE.
*