[openfirmware] [commit] r2177 - cpu/arm
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svn at openfirmware.info
Thu Mar 3 19:32:18 CET 2011
Author: wmb
Date: Thu Mar 3 19:32:13 2011
New Revision: 2177
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2177
Log:
ARM assembler - Changed the "[ifdef] armv7" guarding the use of the
movw instruction in (set) to a runtime value "use-movw?" (default
value false), so the system can be compiled to run anywhere, but
it can later generate architecture-specific code for special purposes.
Modified:
cpu/arm/assem.fth
Modified: cpu/arm/assem.fth
==============================================================================
--- cpu/arm/assem.fth Thu Mar 3 07:14:41 2011 (r2176)
+++ cpu/arm/assem.fth Thu Mar 3 19:32:13 2011 (r2177)
@@ -44,6 +44,8 @@
defer asm-set-relocation-bit
also arm-assembler definitions
+false value use-movw?
+
: asm, ( n -- ) here /l asm-allot asm! ;
previous definitions
@@ -1162,15 +1164,15 @@
true asm-const ( reg# op )
then
else ( reg# imm imm )
-[ifdef] armv7
- 0 1.0000 within if ( reg# imm )
- set-imm16 0300.0000 ( reg# op ) \ movw rN,#<imm16>
- else ( reg# imm )
- false asm-const ( reg# op )
- then
-[else]
- drop false asm-const ( reg# op )
-[then]
+ use-movw? if ( reg# imm imm )
+ 1.0000 u< if ( reg# imm )
+ set-imm16 0300.0000 ( reg# op ) \ movw rN,#<imm16>
+ else ( reg# imm )
+ false asm-const ( reg# op )
+ then ( reg# op )
+ else ( reg# imm imm )
+ drop false asm-const ( reg# op )
+ then ( reg# op )
then ( reg# op )
then ( reg# op )
iop rd-field !op
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