/[dynamips]/trunk/ppc32_x86_trans.h
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /trunk/ppc32_x86_trans.h

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Revision 12 - (show annotations)
Sat Oct 6 16:45:40 2007 UTC (11 years, 11 months ago) by dpavlin
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1 /*
2 * Cisco router simulation platform.
3 * Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)
4 */
5
6 #ifndef __PPC32_X86_TRANS_H__
7 #define __PPC32_X86_TRANS_H__
8
9 #include "utils.h"
10 #include "x86-codegen.h"
11 #include "cpu.h"
12 #include "ppc32_exec.h"
13 #include "dynamips.h"
14
15 #define JIT_SUPPORT 1
16
17 /* Manipulate bitmasks atomically */
18 static forced_inline void atomic_or(m_uint32_t *v,m_uint32_t m)
19 {
20 __asm__ __volatile__("lock; orl %1,%0":"=m"(*v):"ir"(m),"m"(*v));
21 }
22
23 static forced_inline void atomic_and(m_uint32_t *v,m_uint32_t m)
24 {
25 __asm__ __volatile__("lock; andl %1,%0":"=m"(*v):"ir"(m),"m"(*v));
26 }
27
28 /* Wrappers to x86-codegen functions */
29 #define ppc32_jit_tcb_set_patch x86_patch
30 #define ppc32_jit_tcb_set_jump x86_jump_code
31
32 /* PPC instruction array */
33 extern struct ppc32_insn_tag ppc32_insn_tags[];
34
35 /* Push epilog for an x86 instruction block */
36 static forced_inline void ppc32_jit_tcb_push_epilog(u_char **ptr)
37 {
38 x86_ret(*ptr);
39 }
40
41 /* Execute JIT code */
42 static forced_inline
43 void ppc32_jit_tcb_exec(cpu_ppc_t *cpu,ppc32_jit_tcb_t *block)
44 {
45 insn_tblock_fptr jit_code;
46 m_uint32_t offset;
47
48 offset = (cpu->ia & PPC32_MIN_PAGE_IMASK) >> 2;
49 jit_code = (insn_tblock_fptr)block->jit_insn_ptr[offset];
50
51 if (unlikely(!jit_code)) {
52 ppc32_jit_tcb_set_target_bit(block,cpu->ia);
53
54 if (++block->target_undef_cnt == 16) {
55 ppc32_jit_tcb_recompile(cpu,block);
56 jit_code = (insn_tblock_fptr)block->jit_insn_ptr[offset];
57 } else {
58 ppc32_exec_page(cpu);
59 return;
60 }
61 }
62
63 asm volatile ("movl %0,%%edi"::"r"(cpu):
64 "esi","edi","eax","ebx","ecx","edx");
65 jit_code();
66 }
67
68 #endif

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