aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/nwfpe/fpopcode.c
diff options
context:
space:
mode:
authorLeif Lindholm <leif.lindholm@arm.com>2011-12-12 13:44:49 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-12-13 03:52:02 -0500
commite7f626db83689f55089717a6d771c57afe1adc1a (patch)
tree29d15e9f913ffefdf16bc88c8f220e7ba9cc7548 /arch/arm/nwfpe/fpopcode.c
parent0c9030deaf59d444f9e757ee73d6d81bfe2d3376 (diff)
ARM: 7207/1: Use generic ARM instruction set condition code checks for nwfpe.
This patch changes the nwfpe implementation to use the new generic ARM instruction set condition code checks, rather than a local implementation. It also removes the existing condition code checking, which has been used for the generic support (in kernel/opcodes.{ch}). This code has not been tested beyond building, linking and booting. Signed-off-by: Leif Lindholm <leif.lindholm@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/nwfpe/fpopcode.c')
-rw-r--r--arch/arm/nwfpe/fpopcode.c26
1 files changed, 0 insertions, 26 deletions
diff --git a/arch/arm/nwfpe/fpopcode.c b/arch/arm/nwfpe/fpopcode.c
index 922b81107585..ff9834673085 100644
--- a/arch/arm/nwfpe/fpopcode.c
+++ b/arch/arm/nwfpe/fpopcode.c
@@ -61,29 +61,3 @@ const float32 float32Constant[] = {
61 0x41200000 /* single 10.0 */ 61 0x41200000 /* single 10.0 */
62}; 62};
63 63
64/* condition code lookup table
65 index into the table is test code: EQ, NE, ... LT, GT, AL, NV
66 bit position in short is condition code: NZCV */
67static const unsigned short aCC[16] = {
68 0xF0F0, // EQ == Z set
69 0x0F0F, // NE
70 0xCCCC, // CS == C set
71 0x3333, // CC
72 0xFF00, // MI == N set
73 0x00FF, // PL
74 0xAAAA, // VS == V set
75 0x5555, // VC
76 0x0C0C, // HI == C set && Z clear
77 0xF3F3, // LS == C clear || Z set
78 0xAA55, // GE == (N==V)
79 0x55AA, // LT == (N!=V)
80 0x0A05, // GT == (!Z && (N==V))
81 0xF5FA, // LE == (Z || (N!=V))
82 0xFFFF, // AL always
83 0 // NV
84};
85
86unsigned int checkCondition(const unsigned int opcode, const unsigned int ccodes)
87{
88 return (aCC[opcode >> 28] >> (ccodes >> 28)) & 1;
89}