OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target-alpha: convert locked load/store to TCG 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5359 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-09-30 06:45:34 +00:00
parent e820e3f459
commit f4ed86794c
1 changed files with 52 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

92
target-alpha/translate.c
View File

@ -49,6 +49,7 @@ static TCGv cpu_env;
static TCGv cpu_ir[31];
static TCGv cpu_fir[31];
static TCGv cpu_pc;
static TCGv cpu_lock;
/* dyngen register indexes */
static TCGv cpu_T[2];
@ -95,6 +96,9 @@ static void alpha_translate_init(void)
cpu_pc = tcg_global_mem_new(TCG_TYPE_I64, TCG_AREG0,
offsetof(CPUState, pc), "pc");
cpu_lock = tcg_global_mem_new(TCG_TYPE_I64, TCG_AREG0,
offsetof(CPUState, lock), "lock");
/* register helpers */
#undef DEF_HELPER
#define DEF_HELPER(ret, name, params) tcg_register_helper(name, #name);
@ -171,24 +175,6 @@ static always_inline void gen_invalid (DisasContext *ctx)
gen_excp(ctx, EXCP_OPCDEC, 0);
}
static always_inline void gen_load_mem_dyngen (DisasContext *ctx,
void (*gen_load_op)(DisasContext *ctx),
int ra, int rb, int32_t disp16,
int clear)
{
if (ra != 31 || disp16 != 0) {
if (rb != 31)
tcg_gen_addi_i64(cpu_T[0], cpu_ir[rb], disp16);
else
tcg_gen_movi_i64(cpu_T[0], disp16);
if (clear)
tcg_gen_andi_i64(cpu_T[0], cpu_T[0], ~0x7);
(*gen_load_op)(ctx);
if (ra != 31)
tcg_gen_mov_i64(cpu_ir[ra], cpu_T[1]);
}
}
static always_inline void gen_qemu_ldf (TCGv t0, TCGv t1, int flags)
{
TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
@ -213,6 +199,18 @@ static always_inline void gen_qemu_lds (TCGv t0, TCGv t1, int flags)
tcg_temp_free(tmp);
}
static always_inline void gen_qemu_ldl_l (TCGv t0, TCGv t1, int flags)
{
tcg_gen_mov_i64(cpu_lock, t1);
tcg_gen_qemu_ld32s(t0, t1, flags);
}
static always_inline void gen_qemu_ldq_l (TCGv t0, TCGv t1, int flags)
{
tcg_gen_mov_i64(cpu_lock, t1);
tcg_gen_qemu_ld64(t0, t1, flags);
}
static always_inline void gen_load_mem (DisasContext *ctx,
void (*tcg_gen_qemu_load)(TCGv t0, TCGv t1, int flags),
int ra, int rb, int32_t disp16,
@ -240,24 +238,6 @@ static always_inline void gen_load_mem (DisasContext *ctx,
tcg_temp_free(addr);
}
static always_inline void gen_store_mem_dyngen (DisasContext *ctx,
void (*gen_store_op)(DisasContext *ctx),
int ra, int rb, int32_t disp16,
int clear)
{
if (rb != 31)
tcg_gen_addi_i64(cpu_T[0], cpu_ir[rb], disp16);
else
tcg_gen_movi_i64(cpu_T[0], disp16);
if (clear)
tcg_gen_andi_i64(cpu_T[0], cpu_T[0], ~0x7);
if (ra != 31)
tcg_gen_mov_i64(cpu_T[1], cpu_ir[ra]);
else
tcg_gen_movi_i64(cpu_T[1], 0);
(*gen_store_op)(ctx);
}
static always_inline void gen_qemu_stf (TCGv t0, TCGv t1, int flags)
{
TCGv tmp = tcg_temp_new(TCG_TYPE_I32);
@ -282,6 +262,38 @@ static always_inline void gen_qemu_sts (TCGv t0, TCGv t1, int flags)
tcg_temp_free(tmp);
}
static always_inline void gen_qemu_stl_c (TCGv t0, TCGv t1, int flags)
{
int l1, l2;
l1 = gen_new_label();
l2 = gen_new_label();
tcg_gen_brcond_i64(TCG_COND_NE, cpu_lock, t1, l1);
tcg_gen_qemu_st32(t0, t1, flags);
tcg_gen_movi_i64(t0, 0);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_movi_i64(t0, 1);
gen_set_label(l2);
tcg_gen_movi_i64(cpu_lock, -1);
}
static always_inline void gen_qemu_stq_c (TCGv t0, TCGv t1, int flags)
{
int l1, l2;
l1 = gen_new_label();
l2 = gen_new_label();
tcg_gen_brcond_i64(TCG_COND_NE, cpu_lock, t1, l1);
tcg_gen_qemu_st64(t0, t1, flags);
tcg_gen_movi_i64(t0, 0);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_movi_i64(t0, 1);
gen_set_label(l2);
tcg_gen_movi_i64(cpu_lock, -1);
}
static always_inline void gen_store_mem (DisasContext *ctx,
void (*tcg_gen_qemu_store)(TCGv t0, TCGv t1, int flags),
int ra, int rb, int32_t disp16,
@ -2158,11 +2170,11 @@ static always_inline int translate_one (DisasContext *ctx, uint32_t insn)
break;
case 0x2A:
/* LDL_L */
gen_load_mem_dyngen(ctx, &gen_ldl_l, ra, rb, disp16, 0);
gen_load_mem(ctx, &gen_qemu_ldl_l, ra, rb, disp16, 0, 0);
break;
case 0x2B:
/* LDQ_L */
gen_load_mem_dyngen(ctx, &gen_ldq_l, ra, rb, disp16, 0);
gen_load_mem(ctx, &gen_qemu_ldq_l, ra, rb, disp16, 0, 0);
break;
case 0x2C:
/* STL */
@ -2174,11 +2186,11 @@ static always_inline int translate_one (DisasContext *ctx, uint32_t insn)
break;
case 0x2E:
/* STL_C */
gen_store_mem_dyngen(ctx, &gen_stl_c, ra, rb, disp16, 0);
gen_store_mem(ctx, &gen_qemu_stl_c, ra, rb, disp16, 0, 0);
break;
case 0x2F:
/* STQ_C */
gen_store_mem_dyngen(ctx, &gen_stq_c, ra, rb, disp16, 0);
gen_store_mem(ctx, &gen_qemu_stq_c, ra, rb, disp16, 0, 0);
break;
case 0x30:
/* BR */