bf6bca527c
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4985 c046a42c-6fe2-441c-8c8c-71466251a162
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/*
|
|
* Tiny Code Generator for QEMU
|
|
*
|
|
* Copyright (c) 2008 Fabrice Bellard
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
#define TCG_TARGET_PPC 1
|
|
|
|
#define TCG_TARGET_REG_BITS 32
|
|
#define TCG_TARGET_WORDS_BIGENDIAN
|
|
#define TCG_TARGET_NB_REGS 32
|
|
|
|
enum {
|
|
TCG_REG_R0 = 0,
|
|
TCG_REG_R1,
|
|
TCG_REG_R2,
|
|
TCG_REG_R3,
|
|
TCG_REG_R4,
|
|
TCG_REG_R5,
|
|
TCG_REG_R6,
|
|
TCG_REG_R7,
|
|
TCG_REG_R8,
|
|
TCG_REG_R9,
|
|
TCG_REG_R10,
|
|
TCG_REG_R11,
|
|
TCG_REG_R12,
|
|
TCG_REG_R13,
|
|
TCG_REG_R14,
|
|
TCG_REG_R15,
|
|
TCG_REG_R16,
|
|
TCG_REG_R17,
|
|
TCG_REG_R18,
|
|
TCG_REG_R19,
|
|
TCG_REG_R20,
|
|
TCG_REG_R21,
|
|
TCG_REG_R22,
|
|
TCG_REG_R23,
|
|
TCG_REG_R24,
|
|
TCG_REG_R25,
|
|
TCG_REG_R26,
|
|
TCG_REG_R27,
|
|
TCG_REG_R28,
|
|
TCG_REG_R29,
|
|
TCG_REG_R30,
|
|
TCG_REG_R31
|
|
};
|
|
|
|
/* used for function call generation */
|
|
#define TCG_REG_CALL_STACK TCG_REG_R1
|
|
#define TCG_TARGET_STACK_ALIGN 16
|
|
#ifdef __APPLE__
|
|
#define TCG_TARGET_CALL_STACK_OFFSET 24
|
|
#else
|
|
#define TCG_TARGET_CALL_ALIGN_ARGS 1
|
|
#define TCG_TARGET_CALL_STACK_OFFSET 8
|
|
#endif
|
|
|
|
/* optional instructions */
|
|
#define TCG_TARGET_HAS_neg_i32
|
|
#define TCG_TARGET_HAS_div_i32
|
|
#define TCG_TARGET_HAS_ext8s_i32
|
|
#define TCG_TARGET_HAS_ext16s_i32
|
|
|
|
#define TCG_AREG0 TCG_REG_R27
|
|
#define TCG_AREG1 TCG_REG_R24
|
|
#define TCG_AREG2 TCG_REG_R25
|
|
#define TCG_AREG3 TCG_REG_R26
|
|
|
|
/* taken directly from tcg-dyngen.c */
|
|
#define MIN_CACHE_LINE_SIZE 8 /* conservative value */
|
|
|
|
static inline void flush_icache_range(unsigned long start, unsigned long stop)
|
|
{
|
|
unsigned long p;
|
|
|
|
start &= ~(MIN_CACHE_LINE_SIZE - 1);
|
|
stop = (stop + MIN_CACHE_LINE_SIZE - 1) & ~(MIN_CACHE_LINE_SIZE - 1);
|
|
|
|
for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
|
|
asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
|
|
}
|
|
asm volatile ("sync" : : : "memory");
|
|
for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
|
|
asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
|
|
}
|
|
asm volatile ("sync" : : : "memory");
|
|
asm volatile ("isync" : : : "memory");
|
|
}
|