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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2008-06-29 01:03:05 +00:00
parent f6e5889e7f
commit 2e70f6efa8
29 changed files with 830 additions and 117 deletions
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3
target-ppc/cpu.h
View file

@ -697,6 +697,7 @@ struct mmu_ctx_t {
/*****************************************************************************/
CPUPPCState *cpu_ppc_init (const char *cpu_model);
void ppc_translate_init(void);
int cpu_ppc_exec (CPUPPCState *s);
void cpu_ppc_close (CPUPPCState *s);
/* you can call this signal handler from your SIGBUS and SIGSEGV
@ -833,6 +834,8 @@ static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
}
#endif
#define CPU_PC_FROM_TB(env, tb) env->nip = tb->pc
#include "cpu-all.h"
/*****************************************************************************/

1
target-ppc/helper.c
View file

@ -2977,6 +2977,7 @@ CPUPPCState *cpu_ppc_init (const char *cpu_model)
if (!env)
return NULL;
cpu_exec_init(env);
ppc_translate_init();
env->cpu_model_str = cpu_model;
cpu_ppc_register_internal(env, def);
cpu_ppc_reset(env);

32
target-ppc/translate.c
View file

@ -43,6 +43,19 @@
/*****************************************************************************/
/* Code translation helpers */
static TCGv cpu_env;
#include "gen-icount.h"
void ppc_translate_init(void)
{
int done_init = 0;
if (done_init)
return;
cpu_env = tcg_global_reg_new(TCG_TYPE_PTR, TCG_AREG0, "env");
done_init = 1;
}
#if defined(OPTIMIZE_FPRF_UPDATE)
static uint16_t *gen_fprf_buf[OPC_BUF_SIZE];
static uint16_t **gen_fprf_ptr;
@ -6168,6 +6181,8 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
uint16_t *gen_opc_end;
int supervisor, little_endian;
int j, lj = -1;
int num_insns;
int max_insns;
pc_start = tb->pc;
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
@ -6211,6 +6226,12 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
/* Single step trace mode */
msr_se = 1;
#endif
num_insns = 0;
max_insns = tb->cflags & CF_COUNT_MASK;
if (max_insns == 0)
max_insns = CF_COUNT_MASK;
gen_icount_start();
/* Set env in case of segfault during code fetch */
while (ctx.exception == POWERPC_EXCP_NONE && gen_opc_ptr < gen_opc_end) {
if (unlikely(env->nb_breakpoints > 0)) {
@ -6230,6 +6251,7 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
gen_opc_instr_start[lj++] = 0;
gen_opc_pc[lj] = ctx.nip;
gen_opc_instr_start[lj] = 1;
gen_opc_icount[lj] = num_insns;
}
}
#if defined PPC_DEBUG_DISAS
@ -6239,6 +6261,8 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
ctx.nip, supervisor, (int)msr_ir);
}
#endif
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
gen_io_start();
if (unlikely(little_endian)) {
ctx.opcode = bswap32(ldl_code(ctx.nip));
} else {
@ -6253,6 +6277,7 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
#endif
ctx.nip += 4;
table = env->opcodes;
num_insns++;
handler = table[opc1(ctx.opcode)];
if (is_indirect_opcode(handler)) {
table = ind_table(handler);
@ -6306,7 +6331,8 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
ctx.exception != POWERPC_EXCP_BRANCH)) {
GEN_EXCP(ctxp, POWERPC_EXCP_TRACE, 0);
} else if (unlikely(((ctx.nip & (TARGET_PAGE_SIZE - 1)) == 0) ||
(env->singlestep_enabled))) {
(env->singlestep_enabled) ||
num_insns >= max_insns)) {
/* if we reach a page boundary or are single stepping, stop
* generation
*/
@ -6316,6 +6342,8 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
break;
#endif
}
if (tb->cflags & CF_LAST_IO)
gen_io_end();
if (ctx.exception == POWERPC_EXCP_NONE) {
gen_goto_tb(&ctx, 0, ctx.nip);
} else if (ctx.exception != POWERPC_EXCP_BRANCH) {
@ -6326,6 +6354,7 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
/* Generate the return instruction */
tcg_gen_exit_tb(0);
}
gen_icount_end(tb, num_insns);
*gen_opc_ptr = INDEX_op_end;
if (unlikely(search_pc)) {
j = gen_opc_ptr - gen_opc_buf;
@ -6334,6 +6363,7 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
gen_opc_instr_start[lj++] = 0;
} else {
tb->size = ctx.nip - pc_start;
tb->icount = num_insns;
}
#if defined(DEBUG_DISAS)
if (loglevel & CPU_LOG_TB_CPU) {