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authorPeter Maydell <peter.maydell@linaro.org>2015-09-15 17:24:27 +0100
committerPeter Maydell <peter.maydell@linaro.org>2015-09-15 17:24:28 +0100
commit1a3abef74b5df6d6d3e851aaeacac8f265adcf80 (patch)
tree64deb73d56895ccebd70c2d8db0527e4b362f76c /target-arm/helper.c
parent619622424dba749feef752d76d79ef2569f7f250 (diff)
parent461aa6783eec27f209b026c6647fc7a83b2997cd (diff)
Merge remote-tracking branch 'remotes/rth/tags/pull-tile-20150915' into staging
TileGX basic instructions # gpg: Signature made Tue 15 Sep 2015 15:57:08 BST using RSA key ID 4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" * remotes/rth/tags/pull-tile-20150915: (35 commits) target-tilegx: Handle v1shl, v1shru, v1shrs target-tilegx: Handle v1shli, v1shrui target-tilegx: Handle v4int_l/h target-tilegx: Handle atomic instructions target-tilegx: Handle mtspr, mfspr target-tilegx: Handle v1cmpeq, v1cmpne target-tilegx: Handle mask instructions target-tilegx: Handle scalar multiply instructions target-tilegx: Handle conditional move instructions target-tilegx: Handle shift instructions target-tilegx: Handle bitfield instructions target-tilegx: Implement system and memory management instructions target-tilegx: Handle comparison instructions target-tilegx: Handle conditional branch instructions target-tilegx: Handle unconditional jump instructions target-tilegx: Handle post-increment load and store instructions target-tilegx: Handle basic load and store instructions target-tilegx: Handle most bit manipulation instructions target-arm: Use new revbit functions host-utils: Add revbit functions ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/helper.c')
-rw-r--r--target-arm/helper.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 65b9ff5ad0..12ea88fd52 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -5044,17 +5044,7 @@ uint32_t HELPER(udiv)(uint32_t num, uint32_t den)
uint32_t HELPER(rbit)(uint32_t x)
{
- x = ((x & 0xff000000) >> 24)
- | ((x & 0x00ff0000) >> 8)
- | ((x & 0x0000ff00) << 8)
- | ((x & 0x000000ff) << 24);
- x = ((x & 0xf0f0f0f0) >> 4)
- | ((x & 0x0f0f0f0f) << 4);
- x = ((x & 0x88888888) >> 3)
- | ((x & 0x44444444) >> 1)
- | ((x & 0x22222222) << 1)
- | ((x & 0x11111111) << 3);
- return x;
+ return revbit32(x);
}
#if defined(CONFIG_USER_ONLY)