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/*
* 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
#if defined __APPLE__
#define TCG_TARGET_CALL_STACK_OFFSET 24
#elif defined _AIX
#define TCG_TARGET_CALL_STACK_OFFSET 52
#elif defined __linux__
#define TCG_TARGET_CALL_ALIGN_ARGS 1
#define TCG_TARGET_CALL_STACK_OFFSET 8
#else
#error Unsupported system
#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");
}
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