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use the TCG code generator

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3944 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2008-02-01 10:50:11 +00:00
parent c896fe29d6
commit 57fec1fee9
35 changed files with 1098 additions and 2364 deletions
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43
target-mips/translate.c
View file

@ -29,29 +29,12 @@
#include "cpu.h"
#include "exec-all.h"
#include "disas.h"
#include "tcg-op.h"
//#define MIPS_DEBUG_DISAS
//#define MIPS_DEBUG_SIGN_EXTENSIONS
//#define MIPS_SINGLE_STEP
#ifdef USE_DIRECT_JUMP
#define TBPARAM(x)
#else
#define TBPARAM(x) (long)(x)
#endif
enum {
#define DEF(s, n, copy_size) INDEX_op_ ## s,
#include "opc.h"
#undef DEF
NB_OPS,
};
static uint16_t *gen_opc_ptr;
static uint32_t *gen_opparam_ptr;
#include "gen-op.h"
/* MIPS major opcodes */
#define MASK_OP_MAJOR(op) (op & (0x3F << 26))
@ -1777,17 +1760,13 @@ static always_inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong des
TranslationBlock *tb;
tb = ctx->tb;
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
if (n == 0)
gen_op_goto_tb0(TBPARAM(tb));
else
gen_op_goto_tb1(TBPARAM(tb));
tcg_gen_goto_tb(n);
gen_save_pc(dest);
gen_op_set_T0((long)tb + n);
tcg_gen_exit_tb((long)tb + n);
} else {
gen_save_pc(dest);
gen_op_reset_T0();
tcg_gen_exit_tb(0);
}
gen_op_exit_tb();
}
/* Branches (before delay slot) */
@ -6642,8 +6621,7 @@ static void decode_opc (CPUState *env, DisasContext *ctx)
/* unconditional branch to register */
MIPS_DEBUG("branch to register");
gen_op_breg();
gen_op_reset_T0();
gen_op_exit_tb();
tcg_gen_exit_tb(0);
break;
default:
MIPS_DEBUG("unknown branch");
@ -6665,10 +6643,7 @@ gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
fprintf (logfile, "search pc %d\n", search_pc);
pc_start = tb->pc;
gen_opc_ptr = gen_opc_buf;
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
gen_opparam_ptr = gen_opparam_buf;
nb_gen_labels = 0;
ctx.pc = pc_start;
ctx.saved_pc = -1;
ctx.tb = tb;
@ -6748,8 +6723,7 @@ gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
break;
case BS_EXCP:
gen_op_interrupt_restart();
gen_op_reset_T0();
gen_op_exit_tb();
tcg_gen_exit_tb(0);
break;
case BS_BRANCH:
default:
@ -6777,11 +6751,6 @@ done_generating:
target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
fprintf(logfile, "\n");
}
if (loglevel & CPU_LOG_TB_OP) {
fprintf(logfile, "OP:\n");
dump_ops(gen_opc_buf, gen_opparam_buf);
fprintf(logfile, "\n");
}
if (loglevel & CPU_LOG_TB_CPU) {
fprintf(logfile, "---------------- %d %08x\n", ctx.bstate, ctx.hflags);
}