[dotgnu-pnet-commits] [SCM] DotGNU Portable.NET engine, compilers and tools (pnet) branch, master, updated. 240648c02972022efc24122775e30ea61fb50bef

[Klaus Treichel]

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- Log -----------------------------------------------------------------
http://git.savannah.gnu.org/cgit/pnet.git/commit/?id=240648c02972022efc24122775e30ea61fb50bef

commit 240648c02972022efc24122775e30ea61fb50bef
Author: Klaus Treichel <address@hidden>
Date:   Sat Apr 10 19:42:58 2010 +0200

    Implement truncation from double to single precision of a stack value.

diff --git a/ChangeLog b/ChangeLog
index 9b9a58e..3f816cd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,7 @@
 
        * engine/md_arm.h: Fix loads and stores from/to single precision float
        arrays. Change some temporary variables in macros to distinct names.
+       Implement truncation from double to single precision stack value.
 
 2010-04-09  Klaus Treichel  <address@hidden>
 
diff --git a/engine/md_arm.h b/engine/md_arm.h
index 70bc277..ea65f40 100644
--- a/engine/md_arm.h
+++ b/engine/md_arm.h
@@ -560,7 +560,13 @@ typedef arm_inst_ptr       md_inst_ptr;
  * Truncate floating point values to 32-bit or 64-bit.
  */
 #define        md_reg_to_float_32(inst,reg)    \
-                       do { ; } while (0)
+                       do { \
+                               int __cfs_dreg = ((int)(reg) & ~MD_FREG_MASK); \
+                               int __cfs_sreg = (__cfs_dreg << 1); \
+                               arm_cvt_double_single_reg_reg((inst), 
ARM_CC_AL, __cfs_sreg, __cfs_dreg); \
+                               arm_cvt_single_double_reg_reg((inst), 
ARM_CC_AL, __cfs_dreg, __cfs_sreg); \
+                       } while (0)
+
 #define        md_reg_to_float_64(inst,reg)    \
                        do { ; } while (0)
 

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog       |    1 +
 engine/md_arm.h |    8 +++++++-
 2 files changed, 8 insertions(+), 1 deletions(-)


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