91 lines
2.8 KiB
C++
91 lines
2.8 KiB
C++
/* libs/pixelflinger/codeflinger/ARMAssemblerInterface.cpp
|
|
**
|
|
** Copyright 2006, The Android Open Source Project
|
|
**
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
**
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
**
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*/
|
|
#define LOG_TAG "pixelflinger-code"
|
|
|
|
#include <errno.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <log/log.h>
|
|
|
|
#include "ARMAssemblerInterface.h"
|
|
|
|
namespace android {
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
ARMAssemblerInterface::~ARMAssemblerInterface()
|
|
{
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
// The following two functions are static and used for initializers
|
|
// in the original ARM code. The above versions (without __), are now
|
|
// virtual, and can be overridden in the MIPS code. But since these are
|
|
// needed at initialization time, they must be static. Not thrilled with
|
|
// this implementation, but it works...
|
|
|
|
uint32_t ARMAssemblerInterface::__immed12_pre(int32_t immed12, int W)
|
|
{
|
|
LOG_ALWAYS_FATAL_IF(abs(immed12) >= 0x800,
|
|
"LDR(B)/STR(B)/PLD immediate too big (%08x)",
|
|
immed12);
|
|
return (1<<24) | (((uint32_t(immed12)>>31)^1)<<23) |
|
|
((W&1)<<21) | (abs(immed12)&0x7FF);
|
|
}
|
|
|
|
uint32_t ARMAssemblerInterface::__immed8_pre(int32_t immed8, int W)
|
|
{
|
|
uint32_t offset = abs(immed8);
|
|
|
|
LOG_ALWAYS_FATAL_IF(abs(immed8) >= 0x100,
|
|
"LDRH/LDRSB/LDRSH/STRH immediate too big (%08x)",
|
|
immed8);
|
|
|
|
return (1<<24) | (1<<22) | (((uint32_t(immed8)>>31)^1)<<23) |
|
|
((W&1)<<21) | (((offset&0xF0)<<4)|(offset&0xF));
|
|
}
|
|
|
|
// The following four functions are required for address manipulation
|
|
// These are virtual functions, which can be overridden by architectures
|
|
// that need special handling of address values (e.g. 64-bit arch)
|
|
|
|
void ARMAssemblerInterface::ADDR_LDR(int cc, int Rd,
|
|
int Rn, uint32_t offset)
|
|
{
|
|
LDR(cc, Rd, Rn, offset);
|
|
}
|
|
void ARMAssemblerInterface::ADDR_STR(int cc, int Rd,
|
|
int Rn, uint32_t offset)
|
|
{
|
|
STR(cc, Rd, Rn, offset);
|
|
}
|
|
void ARMAssemblerInterface::ADDR_ADD(int cc, int s,
|
|
int Rd, int Rn, uint32_t Op2)
|
|
{
|
|
dataProcessing(opADD, cc, s, Rd, Rn, Op2);
|
|
}
|
|
void ARMAssemblerInterface::ADDR_SUB(int cc, int s,
|
|
int Rd, int Rn, uint32_t Op2)
|
|
{
|
|
dataProcessing(opSUB, cc, s, Rd, Rn, Op2);
|
|
}
|
|
}; // namespace android
|
|
|