* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#define GEN_HELPER 1
#include "helper.h"
-/* #define DO_SINGLE_STEP */
-#define ALPHA_DEBUG_DISAS
-/* #define DO_TB_FLUSH */
-
+#undef ALPHA_DEBUG_DISAS
+#define CONFIG_SOFTFLOAT_INLINE
#ifdef ALPHA_DEBUG_DISAS
-# define LOG_DISAS(...) qemu_log(__VA_ARGS__)
+# define LOG_DISAS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
#else
# define LOG_DISAS(...) do { } while (0)
#endif
typedef struct DisasContext DisasContext;
struct DisasContext {
+ struct TranslationBlock *tb;
+ CPUAlphaState *env;
uint64_t pc;
int mem_idx;
#if !defined (CONFIG_USER_ONLY)
int pal_mode;
#endif
- CPUAlphaState *env;
uint32_t amask;
+
+ /* Current rounding mode for this TB. */
+ int tb_rm;
+ /* Current flush-to-zero setting for this TB. */
+ int tb_ftz;
};
+/* Return values from translate_one, indicating the state of the TB.
+ Note that zero indicates that we are not exiting the TB. */
+
+typedef enum {
+ NO_EXIT,
+
+ /* We have emitted one or more goto_tb. No fixup required. */
+ EXIT_GOTO_TB,
+
+ /* We are not using a goto_tb (for whatever reason), but have updated
+ the PC (for whatever reason), so there's no need to do it again on
+ exiting the TB. */
+ EXIT_PC_UPDATED,
+
+ /* We are exiting the TB, but have neither emitted a goto_tb, nor
+ updated the PC for the next instruction to be executed. */
+ EXIT_PC_STALE,
+
+ /* We are ending the TB with a noreturn function call, e.g. longjmp.
+ No following code will be executed. */
+ EXIT_NORETURN,
+} ExitStatus;
+
/* global register indexes */
static TCGv_ptr cpu_env;
static TCGv cpu_ir[31];
static TCGv cpu_fir[31];
static TCGv cpu_pc;
-static TCGv cpu_lock;
+static TCGv cpu_lock_addr;
+static TCGv cpu_lock_st_addr;
+static TCGv cpu_lock_value;
+#ifdef CONFIG_USER_ONLY
+static TCGv cpu_uniq;
+#endif
/* register names */
static char cpu_reg_names[10*4+21*5 + 10*5+21*6];
cpu_pc = tcg_global_mem_new_i64(TCG_AREG0,
offsetof(CPUState, pc), "pc");
- cpu_lock = tcg_global_mem_new_i64(TCG_AREG0,
- offsetof(CPUState, lock), "lock");
+ cpu_lock_addr = tcg_global_mem_new_i64(TCG_AREG0,
+ offsetof(CPUState, lock_addr),
+ "lock_addr");
+ cpu_lock_st_addr = tcg_global_mem_new_i64(TCG_AREG0,
+ offsetof(CPUState, lock_st_addr),
+ "lock_st_addr");
+ cpu_lock_value = tcg_global_mem_new_i64(TCG_AREG0,
+ offsetof(CPUState, lock_value),
+ "lock_value");
+
+#ifdef CONFIG_USER_ONLY
+ cpu_uniq = tcg_global_mem_new_i64(TCG_AREG0,
+ offsetof(CPUState, unique), "uniq");
+#endif
/* register helpers */
#define GEN_HELPER 2
done_init = 1;
}
-static always_inline void gen_excp (DisasContext *ctx,
- int exception, int error_code)
+static ExitStatus gen_excp(DisasContext *ctx, int exception, int error_code)
{
TCGv_i32 tmp1, tmp2;
gen_helper_excp(tmp1, tmp2);
tcg_temp_free_i32(tmp2);
tcg_temp_free_i32(tmp1);
+
+ return EXIT_NORETURN;
}
-static always_inline void gen_invalid (DisasContext *ctx)
+static inline ExitStatus gen_invalid(DisasContext *ctx)
{
- gen_excp(ctx, EXCP_OPCDEC, 0);
+ return gen_excp(ctx, EXCP_OPCDEC, 0);
}
-static always_inline void gen_qemu_ldf (TCGv t0, TCGv t1, int flags)
+static inline void gen_qemu_ldf(TCGv t0, TCGv t1, int flags)
{
TCGv tmp = tcg_temp_new();
TCGv_i32 tmp32 = tcg_temp_new_i32();
tcg_temp_free(tmp);
}
-static always_inline void gen_qemu_ldg (TCGv t0, TCGv t1, int flags)
+static inline void gen_qemu_ldg(TCGv t0, TCGv t1, int flags)
{
TCGv tmp = tcg_temp_new();
tcg_gen_qemu_ld64(tmp, t1, flags);
tcg_temp_free(tmp);
}
-static always_inline void gen_qemu_lds (TCGv t0, TCGv t1, int flags)
+static inline void gen_qemu_lds(TCGv t0, TCGv t1, int flags)
{
TCGv tmp = tcg_temp_new();
TCGv_i32 tmp32 = tcg_temp_new_i32();
tcg_temp_free(tmp);
}
-static always_inline void gen_qemu_ldl_l (TCGv t0, TCGv t1, int flags)
+static 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);
+ tcg_gen_mov_i64(cpu_lock_addr, t1);
+ tcg_gen_mov_i64(cpu_lock_value, t0);
}
-static always_inline void gen_qemu_ldq_l (TCGv t0, TCGv t1, int flags)
+static 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);
+ tcg_gen_mov_i64(cpu_lock_addr, t1);
+ tcg_gen_mov_i64(cpu_lock_value, t0);
}
-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,
- int fp, int clear)
+static 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, int fp,
+ int clear)
{
- TCGv addr;
+ TCGv addr, va;
- if (unlikely(ra == 31))
+ /* LDQ_U with ra $31 is UNOP. Other various loads are forms of
+ prefetches, which we can treat as nops. No worries about
+ missed exceptions here. */
+ if (unlikely(ra == 31)) {
return;
+ }
addr = tcg_temp_new();
if (rb != 31) {
tcg_gen_addi_i64(addr, cpu_ir[rb], disp16);
- if (clear)
+ if (clear) {
tcg_gen_andi_i64(addr, addr, ~0x7);
+ }
} else {
- if (clear)
+ if (clear) {
disp16 &= ~0x7;
+ }
tcg_gen_movi_i64(addr, disp16);
}
- if (fp)
- tcg_gen_qemu_load(cpu_fir[ra], addr, ctx->mem_idx);
- else
- tcg_gen_qemu_load(cpu_ir[ra], addr, ctx->mem_idx);
+
+ va = (fp ? cpu_fir[ra] : cpu_ir[ra]);
+ tcg_gen_qemu_load(va, addr, ctx->mem_idx);
+
tcg_temp_free(addr);
}
-static always_inline void gen_qemu_stf (TCGv t0, TCGv t1, int flags)
+static inline void gen_qemu_stf(TCGv t0, TCGv t1, int flags)
{
TCGv_i32 tmp32 = tcg_temp_new_i32();
TCGv tmp = tcg_temp_new();
tcg_temp_free_i32(tmp32);
}
-static always_inline void gen_qemu_stg (TCGv t0, TCGv t1, int flags)
+static inline void gen_qemu_stg(TCGv t0, TCGv t1, int flags)
{
TCGv tmp = tcg_temp_new();
gen_helper_g_to_memory(tmp, t0);
tcg_temp_free(tmp);
}
-static always_inline void gen_qemu_sts (TCGv t0, TCGv t1, int flags)
+static inline void gen_qemu_sts(TCGv t0, TCGv t1, int flags)
{
TCGv_i32 tmp32 = tcg_temp_new_i32();
TCGv tmp = tcg_temp_new();
tcg_temp_free_i32(tmp32);
}
-static always_inline void gen_qemu_stl_c (TCGv t0, TCGv t1, int flags)
+static 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, int fp,
+ int clear)
{
- int l1, l2;
+ TCGv addr, va;
- 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, 1);
- tcg_gen_br(l2);
- gen_set_label(l1);
- tcg_gen_movi_i64(t0, 0);
- gen_set_label(l2);
- tcg_gen_movi_i64(cpu_lock, -1);
-}
+ addr = tcg_temp_new();
+ if (rb != 31) {
+ tcg_gen_addi_i64(addr, cpu_ir[rb], disp16);
+ if (clear) {
+ tcg_gen_andi_i64(addr, addr, ~0x7);
+ }
+ } else {
+ if (clear) {
+ disp16 &= ~0x7;
+ }
+ tcg_gen_movi_i64(addr, disp16);
+ }
-static always_inline void gen_qemu_stq_c (TCGv t0, TCGv t1, int flags)
-{
- int l1, l2;
+ if (ra == 31) {
+ va = tcg_const_i64(0);
+ } else {
+ va = (fp ? cpu_fir[ra] : cpu_ir[ra]);
+ }
+ tcg_gen_qemu_store(va, addr, ctx->mem_idx);
- 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, 1);
- tcg_gen_br(l2);
- gen_set_label(l1);
- tcg_gen_movi_i64(t0, 0);
- gen_set_label(l2);
- tcg_gen_movi_i64(cpu_lock, -1);
+ tcg_temp_free(addr);
+ if (ra == 31) {
+ tcg_temp_free(va);
+ }
}
-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,
- int fp, int clear, int local)
+static ExitStatus gen_store_conditional(DisasContext *ctx, int ra, int rb,
+ int32_t disp16, int quad)
{
TCGv addr;
- if (local)
- addr = tcg_temp_local_new();
- else
- addr = tcg_temp_new();
+
+ if (ra == 31) {
+ /* ??? Don't bother storing anything. The user can't tell
+ the difference, since the zero register always reads zero. */
+ return NO_EXIT;
+ }
+
+#if defined(CONFIG_USER_ONLY)
+ addr = cpu_lock_st_addr;
+#else
+ addr = tcg_local_new();
+#endif
+
if (rb != 31) {
tcg_gen_addi_i64(addr, cpu_ir[rb], disp16);
- if (clear)
- tcg_gen_andi_i64(addr, addr, ~0x7);
} else {
- if (clear)
- disp16 &= ~0x7;
tcg_gen_movi_i64(addr, disp16);
}
+
+#if defined(CONFIG_USER_ONLY)
+ /* ??? This is handled via a complicated version of compare-and-swap
+ in the cpu_loop. Hopefully one day we'll have a real CAS opcode
+ in TCG so that this isn't necessary. */
+ return gen_excp(ctx, quad ? EXCP_STQ_C : EXCP_STL_C, ra);
+#else
+ /* ??? In system mode we are never multi-threaded, so CAS can be
+ implemented via a non-atomic load-compare-store sequence. */
+ {
+ int lab_fail, lab_done;
+ TCGv val;
+
+ lab_fail = gen_new_label();
+ lab_done = gen_new_label();
+ tcg_gen_brcond(TCG_COND_NE, addr, cpu_lock_addr, lab_fail);
+
+ val = tcg_temp_new();
+ if (quad) {
+ tcg_gen_qemu_ld64(val, addr, ctx->mem_idx);
+ } else {
+ tcg_gen_qemu_ld32s(val, addr, ctx->mem_idx);
+ }
+ tcg_gen_brcond(TCG_COND_NE, val, cpu_lock_value, lab_fail);
+
+ if (quad) {
+ tcg_gen_qemu_st64(cpu_ir[ra], addr, ctx->mem_idx);
+ } else {
+ tcg_gen_qemu_st32(cpu_ir[ra], addr, ctx->mem_idx);
+ }
+ tcg_gen_movi_i64(cpu_ir[ra], 1);
+ tcg_gen_br(lab_done);
+
+ gen_set_label(lab_fail);
+ tcg_gen_movi_i64(cpu_ir[ra], 0);
+
+ gen_set_label(lab_done);
+ tcg_gen_movi_i64(cpu_lock_addr, -1);
+
+ tcg_temp_free(addr);
+ return NO_EXIT;
+ }
+#endif
+}
+
+static int use_goto_tb(DisasContext *ctx, uint64_t dest)
+{
+ /* Check for the dest on the same page as the start of the TB. We
+ also want to suppress goto_tb in the case of single-steping and IO. */
+ return (((ctx->tb->pc ^ dest) & TARGET_PAGE_MASK) == 0
+ && !ctx->env->singlestep_enabled
+ && !(ctx->tb->cflags & CF_LAST_IO));
+}
+
+static ExitStatus gen_bdirect(DisasContext *ctx, int ra, int32_t disp)
+{
+ uint64_t dest = ctx->pc + (disp << 2);
+
if (ra != 31) {
- if (fp)
- tcg_gen_qemu_store(cpu_fir[ra], addr, ctx->mem_idx);
- else
- tcg_gen_qemu_store(cpu_ir[ra], addr, ctx->mem_idx);
+ tcg_gen_movi_i64(cpu_ir[ra], ctx->pc);
+ }
+
+ /* Notice branch-to-next; used to initialize RA with the PC. */
+ if (disp == 0) {
+ return 0;
+ } else if (use_goto_tb(ctx, dest)) {
+ tcg_gen_goto_tb(0);
+ tcg_gen_movi_i64(cpu_pc, dest);
+ tcg_gen_exit_tb((long)ctx->tb);
+ return EXIT_GOTO_TB;
} else {
- TCGv zero;
- if (local)
- zero = tcg_const_local_i64(0);
- else
- zero = tcg_const_i64(0);
- tcg_gen_qemu_store(zero, addr, ctx->mem_idx);
- tcg_temp_free(zero);
+ tcg_gen_movi_i64(cpu_pc, dest);
+ return EXIT_PC_UPDATED;
+ }
+}
+
+static ExitStatus gen_bcond_internal(DisasContext *ctx, TCGCond cond,
+ TCGv cmp, int32_t disp)
+{
+ uint64_t dest = ctx->pc + (disp << 2);
+ int lab_true = gen_new_label();
+
+ if (use_goto_tb(ctx, dest)) {
+ tcg_gen_brcondi_i64(cond, cmp, 0, lab_true);
+
+ tcg_gen_goto_tb(0);
+ tcg_gen_movi_i64(cpu_pc, ctx->pc);
+ tcg_gen_exit_tb((long)ctx->tb);
+
+ gen_set_label(lab_true);
+ tcg_gen_goto_tb(1);
+ tcg_gen_movi_i64(cpu_pc, dest);
+ tcg_gen_exit_tb((long)ctx->tb + 1);
+
+ return EXIT_GOTO_TB;
+ } else {
+ int lab_over = gen_new_label();
+
+ /* ??? Consider using either
+ movi pc, next
+ addi tmp, pc, disp
+ movcond pc, cond, 0, tmp, pc
+ or
+ setcond tmp, cond, 0
+ movi pc, next
+ neg tmp, tmp
+ andi tmp, tmp, disp
+ add pc, pc, tmp
+ The current diamond subgraph surely isn't efficient. */
+
+ tcg_gen_brcondi_i64(cond, cmp, 0, lab_true);
+ tcg_gen_movi_i64(cpu_pc, ctx->pc);
+ tcg_gen_br(lab_over);
+ gen_set_label(lab_true);
+ tcg_gen_movi_i64(cpu_pc, dest);
+ gen_set_label(lab_over);
+
+ return EXIT_PC_UPDATED;
}
- tcg_temp_free(addr);
}
-static always_inline void gen_bcond (DisasContext *ctx,
- TCGCond cond,
- int ra, int32_t disp, int mask)
+static ExitStatus gen_bcond(DisasContext *ctx, TCGCond cond, int ra,
+ int32_t disp, int mask)
{
- int l1, l2;
+ TCGv cmp_tmp;
+
+ if (unlikely(ra == 31)) {
+ cmp_tmp = tcg_const_i64(0);
+ } else {
+ cmp_tmp = tcg_temp_new();
+ if (mask) {
+ tcg_gen_andi_i64(cmp_tmp, cpu_ir[ra], 1);
+ } else {
+ tcg_gen_mov_i64(cmp_tmp, cpu_ir[ra]);
+ }
+ }
+
+ return gen_bcond_internal(ctx, cond, cmp_tmp, disp);
+}
+
+/* Fold -0.0 for comparison with COND. */
+
+static void gen_fold_mzero(TCGCond cond, TCGv dest, TCGv src)
+{
+ uint64_t mzero = 1ull << 63;
+
+ switch (cond) {
+ case TCG_COND_LE:
+ case TCG_COND_GT:
+ /* For <= or >, the -0.0 value directly compares the way we want. */
+ tcg_gen_mov_i64(dest, src);
+ break;
+
+ case TCG_COND_EQ:
+ case TCG_COND_NE:
+ /* For == or !=, we can simply mask off the sign bit and compare. */
+ tcg_gen_andi_i64(dest, src, mzero - 1);
+ break;
+
+ case TCG_COND_GE:
+ case TCG_COND_LT:
+ /* For >= or <, map -0.0 to +0.0 via comparison and mask. */
+ tcg_gen_setcondi_i64(TCG_COND_NE, dest, src, mzero);
+ tcg_gen_neg_i64(dest, dest);
+ tcg_gen_and_i64(dest, dest, src);
+ break;
+
+ default:
+ abort();
+ }
+}
+
+static ExitStatus gen_fbcond(DisasContext *ctx, TCGCond cond, int ra,
+ int32_t disp)
+{
+ TCGv cmp_tmp;
+
+ if (unlikely(ra == 31)) {
+ /* Very uncommon case, but easier to optimize it to an integer
+ comparison than continuing with the floating point comparison. */
+ return gen_bcond(ctx, cond, ra, disp, 0);
+ }
+
+ cmp_tmp = tcg_temp_new();
+ gen_fold_mzero(cond, cmp_tmp, cpu_fir[ra]);
+ return gen_bcond_internal(ctx, cond, cmp_tmp, disp);
+}
+
+static void gen_cmov(TCGCond cond, int ra, int rb, int rc,
+ int islit, uint8_t lit, int mask)
+{
+ TCGCond inv_cond = tcg_invert_cond(cond);
+ int l1;
+
+ if (unlikely(rc == 31))
+ return;
l1 = gen_new_label();
- l2 = gen_new_label();
- if (likely(ra != 31)) {
+
+ if (ra != 31) {
if (mask) {
TCGv tmp = tcg_temp_new();
tcg_gen_andi_i64(tmp, cpu_ir[ra], 1);
- tcg_gen_brcondi_i64(cond, tmp, 0, l1);
+ tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1);
tcg_temp_free(tmp);
} else
- tcg_gen_brcondi_i64(cond, cpu_ir[ra], 0, l1);
+ tcg_gen_brcondi_i64(inv_cond, cpu_ir[ra], 0, l1);
} else {
/* Very uncommon case - Do not bother to optimize. */
TCGv tmp = tcg_const_i64(0);
- tcg_gen_brcondi_i64(cond, tmp, 0, l1);
+ tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1);
tcg_temp_free(tmp);
}
- tcg_gen_movi_i64(cpu_pc, ctx->pc);
- tcg_gen_br(l2);
+
+ if (islit)
+ tcg_gen_movi_i64(cpu_ir[rc], lit);
+ else
+ tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
gen_set_label(l1);
- tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp << 2));
- gen_set_label(l2);
}
-static always_inline void gen_fbcond (DisasContext *ctx, int opc,
- int ra, int32_t disp16)
+static void gen_fcmov(TCGCond cond, int ra, int rb, int rc)
{
- int l1, l2;
- TCGv tmp;
- TCGv src;
+ TCGv cmp_tmp;
+ int l1;
+
+ if (unlikely(rc == 31)) {
+ return;
+ }
+
+ cmp_tmp = tcg_temp_new();
+ if (unlikely(ra == 31)) {
+ tcg_gen_movi_i64(cmp_tmp, 0);
+ } else {
+ gen_fold_mzero(cond, cmp_tmp, cpu_fir[ra]);
+ }
l1 = gen_new_label();
- l2 = gen_new_label();
- if (ra != 31) {
- tmp = tcg_temp_new();
- src = cpu_fir[ra];
- } else {
- tmp = tcg_const_i64(0);
- src = tmp;
+ tcg_gen_brcondi_i64(tcg_invert_cond(cond), cmp_tmp, 0, l1);
+ tcg_temp_free(cmp_tmp);
+
+ if (rb != 31)
+ tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[rb]);
+ else
+ tcg_gen_movi_i64(cpu_fir[rc], 0);
+ gen_set_label(l1);
+}
+
+#define QUAL_RM_N 0x080 /* Round mode nearest even */
+#define QUAL_RM_C 0x000 /* Round mode chopped */
+#define QUAL_RM_M 0x040 /* Round mode minus infinity */
+#define QUAL_RM_D 0x0c0 /* Round mode dynamic */
+#define QUAL_RM_MASK 0x0c0
+
+#define QUAL_U 0x100 /* Underflow enable (fp output) */
+#define QUAL_V 0x100 /* Overflow enable (int output) */
+#define QUAL_S 0x400 /* Software completion enable */
+#define QUAL_I 0x200 /* Inexact detection enable */
+
+static void gen_qual_roundmode(DisasContext *ctx, int fn11)
+{
+ TCGv_i32 tmp;
+
+ fn11 &= QUAL_RM_MASK;
+ if (fn11 == ctx->tb_rm) {
+ return;
}
- switch (opc) {
- case 0x31: /* FBEQ */
- gen_helper_cmpfeq(tmp, src);
+ ctx->tb_rm = fn11;
+
+ tmp = tcg_temp_new_i32();
+ switch (fn11) {
+ case QUAL_RM_N:
+ tcg_gen_movi_i32(tmp, float_round_nearest_even);
break;
- case 0x32: /* FBLT */
- gen_helper_cmpflt(tmp, src);
+ case QUAL_RM_C:
+ tcg_gen_movi_i32(tmp, float_round_to_zero);
break;
- case 0x33: /* FBLE */
- gen_helper_cmpfle(tmp, src);
+ case QUAL_RM_M:
+ tcg_gen_movi_i32(tmp, float_round_down);
break;
- case 0x35: /* FBNE */
- gen_helper_cmpfne(tmp, src);
+ case QUAL_RM_D:
+ tcg_gen_ld8u_i32(tmp, cpu_env, offsetof(CPUState, fpcr_dyn_round));
break;
- case 0x36: /* FBGE */
- gen_helper_cmpfge(tmp, src);
+ }
+
+#if defined(CONFIG_SOFTFLOAT_INLINE)
+ /* ??? The "softfloat.h" interface is to call set_float_rounding_mode.
+ With CONFIG_SOFTFLOAT that expands to an out-of-line call that just
+ sets the one field. */
+ tcg_gen_st8_i32(tmp, cpu_env,
+ offsetof(CPUState, fp_status.float_rounding_mode));
+#else
+ gen_helper_setroundmode(tmp);
+#endif
+
+ tcg_temp_free_i32(tmp);
+}
+
+static void gen_qual_flushzero(DisasContext *ctx, int fn11)
+{
+ TCGv_i32 tmp;
+
+ fn11 &= QUAL_U;
+ if (fn11 == ctx->tb_ftz) {
+ return;
+ }
+ ctx->tb_ftz = fn11;
+
+ tmp = tcg_temp_new_i32();
+ if (fn11) {
+ /* Underflow is enabled, use the FPCR setting. */
+ tcg_gen_ld8u_i32(tmp, cpu_env, offsetof(CPUState, fpcr_flush_to_zero));
+ } else {
+ /* Underflow is disabled, force flush-to-zero. */
+ tcg_gen_movi_i32(tmp, 1);
+ }
+
+#if defined(CONFIG_SOFTFLOAT_INLINE)
+ tcg_gen_st8_i32(tmp, cpu_env,
+ offsetof(CPUState, fp_status.flush_to_zero));
+#else
+ gen_helper_setflushzero(tmp);
+#endif
+
+ tcg_temp_free_i32(tmp);
+}
+
+static TCGv gen_ieee_input(int reg, int fn11, int is_cmp)
+{
+ TCGv val = tcg_temp_new();
+ if (reg == 31) {
+ tcg_gen_movi_i64(val, 0);
+ } else if (fn11 & QUAL_S) {
+ gen_helper_ieee_input_s(val, cpu_fir[reg]);
+ } else if (is_cmp) {
+ gen_helper_ieee_input_cmp(val, cpu_fir[reg]);
+ } else {
+ gen_helper_ieee_input(val, cpu_fir[reg]);
+ }
+ return val;
+}
+
+static void gen_fp_exc_clear(void)
+{
+#if defined(CONFIG_SOFTFLOAT_INLINE)
+ TCGv_i32 zero = tcg_const_i32(0);
+ tcg_gen_st8_i32(zero, cpu_env,
+ offsetof(CPUState, fp_status.float_exception_flags));
+ tcg_temp_free_i32(zero);
+#else
+ gen_helper_fp_exc_clear();
+#endif
+}
+
+static void gen_fp_exc_raise_ignore(int rc, int fn11, int ignore)
+{
+ /* ??? We ought to be able to do something with imprecise exceptions.
+ E.g. notice we're still in the trap shadow of something within the
+ TB and do not generate the code to signal the exception; end the TB
+ when an exception is forced to arrive, either by consumption of a
+ register value or TRAPB or EXCB. */
+ TCGv_i32 exc = tcg_temp_new_i32();
+ TCGv_i32 reg;
+
+#if defined(CONFIG_SOFTFLOAT_INLINE)
+ tcg_gen_ld8u_i32(exc, cpu_env,
+ offsetof(CPUState, fp_status.float_exception_flags));
+#else
+ gen_helper_fp_exc_get(exc);
+#endif
+
+ if (ignore) {
+ tcg_gen_andi_i32(exc, exc, ~ignore);
+ }
+
+ /* ??? Pass in the regno of the destination so that the helper can
+ set EXC_MASK, which contains a bitmask of destination registers
+ that have caused arithmetic traps. A simple userspace emulation
+ does not require this. We do need it for a guest kernel's entArith,
+ or if we were to do something clever with imprecise exceptions. */
+ reg = tcg_const_i32(rc + 32);
+
+ if (fn11 & QUAL_S) {
+ gen_helper_fp_exc_raise_s(exc, reg);
+ } else {
+ gen_helper_fp_exc_raise(exc, reg);
+ }
+
+ tcg_temp_free_i32(reg);
+ tcg_temp_free_i32(exc);
+}
+
+static inline void gen_fp_exc_raise(int rc, int fn11)
+{
+ gen_fp_exc_raise_ignore(rc, fn11, fn11 & QUAL_I ? 0 : float_flag_inexact);
+}
+
+static void gen_fcvtlq(int rb, int rc)
+{
+ if (unlikely(rc == 31)) {
+ return;
+ }
+ if (unlikely(rb == 31)) {
+ tcg_gen_movi_i64(cpu_fir[rc], 0);
+ } else {
+ TCGv tmp = tcg_temp_new();
+
+ /* The arithmetic right shift here, plus the sign-extended mask below
+ yields a sign-extended result without an explicit ext32s_i64. */
+ tcg_gen_sari_i64(tmp, cpu_fir[rb], 32);
+ tcg_gen_shri_i64(cpu_fir[rc], cpu_fir[rb], 29);
+ tcg_gen_andi_i64(tmp, tmp, (int32_t)0xc0000000);
+ tcg_gen_andi_i64(cpu_fir[rc], cpu_fir[rc], 0x3fffffff);
+ tcg_gen_or_i64(cpu_fir[rc], cpu_fir[rc], tmp);
+
+ tcg_temp_free(tmp);
+ }
+}
+
+static void gen_fcvtql(int rb, int rc)
+{
+ if (unlikely(rc == 31)) {
+ return;
+ }
+ if (unlikely(rb == 31)) {
+ tcg_gen_movi_i64(cpu_fir[rc], 0);
+ } else {
+ TCGv tmp = tcg_temp_new();
+
+ tcg_gen_andi_i64(tmp, cpu_fir[rb], 0xC0000000);
+ tcg_gen_andi_i64(cpu_fir[rc], cpu_fir[rb], 0x3FFFFFFF);
+ tcg_gen_shli_i64(tmp, tmp, 32);
+ tcg_gen_shli_i64(cpu_fir[rc], cpu_fir[rc], 29);
+ tcg_gen_or_i64(cpu_fir[rc], cpu_fir[rc], tmp);
+
+ tcg_temp_free(tmp);
+ }
+}
+
+static void gen_fcvtql_v(DisasContext *ctx, int rb, int rc)
+{
+ if (rb != 31) {
+ int lab = gen_new_label();
+ TCGv tmp = tcg_temp_new();
+
+ tcg_gen_ext32s_i64(tmp, cpu_fir[rb]);
+ tcg_gen_brcond_i64(TCG_COND_EQ, tmp, cpu_fir[rb], lab);
+ gen_excp(ctx, EXCP_ARITH, EXC_M_IOV);
+
+ gen_set_label(lab);
+ }
+ gen_fcvtql(rb, rc);
+}
+
+#define FARITH2(name) \
+static inline void glue(gen_f, name)(int rb, int rc) \
+{ \
+ if (unlikely(rc == 31)) { \
+ return; \
+ } \
+ if (rb != 31) { \
+ gen_helper_ ## name (cpu_fir[rc], cpu_fir[rb]); \
+ } else { \
+ TCGv tmp = tcg_const_i64(0); \
+ gen_helper_ ## name (cpu_fir[rc], tmp); \
+ tcg_temp_free(tmp); \
+ } \
+}
+
+/* ??? VAX instruction qualifiers ignored. */
+FARITH2(sqrtf)
+FARITH2(sqrtg)
+FARITH2(cvtgf)
+FARITH2(cvtgq)
+FARITH2(cvtqf)
+FARITH2(cvtqg)
+
+static void gen_ieee_arith2(DisasContext *ctx, void (*helper)(TCGv, TCGv),
+ int rb, int rc, int fn11)
+{
+ TCGv vb;
+
+ /* ??? This is wrong: the instruction is not a nop, it still may
+ raise exceptions. */
+ if (unlikely(rc == 31)) {
+ return;
+ }
+
+ gen_qual_roundmode(ctx, fn11);
+ gen_qual_flushzero(ctx, fn11);
+ gen_fp_exc_clear();
+
+ vb = gen_ieee_input(rb, fn11, 0);
+ helper(cpu_fir[rc], vb);
+ tcg_temp_free(vb);
+
+ gen_fp_exc_raise(rc, fn11);
+}
+
+#define IEEE_ARITH2(name) \
+static inline void glue(gen_f, name)(DisasContext *ctx, \
+ int rb, int rc, int fn11) \
+{ \
+ gen_ieee_arith2(ctx, gen_helper_##name, rb, rc, fn11); \
+}
+IEEE_ARITH2(sqrts)
+IEEE_ARITH2(sqrtt)
+IEEE_ARITH2(cvtst)
+IEEE_ARITH2(cvtts)
+
+static void gen_fcvttq(DisasContext *ctx, int rb, int rc, int fn11)
+{
+ TCGv vb;
+ int ignore = 0;
+
+ /* ??? This is wrong: the instruction is not a nop, it still may
+ raise exceptions. */
+ if (unlikely(rc == 31)) {
+ return;
+ }
+
+ /* No need to set flushzero, since we have an integer output. */
+ gen_fp_exc_clear();
+ vb = gen_ieee_input(rb, fn11, 0);
+
+ /* Almost all integer conversions use cropped rounding, and most
+ also do not have integer overflow enabled. Special case that. */
+ switch (fn11) {
+ case QUAL_RM_C:
+ gen_helper_cvttq_c(cpu_fir[rc], vb);
break;
- case 0x37: /* FBGT */
- gen_helper_cmpfgt(tmp, src);
+ case QUAL_V | QUAL_RM_C:
+ case QUAL_S | QUAL_V | QUAL_RM_C:
+ ignore = float_flag_inexact;
+ /* FALLTHRU */
+ case QUAL_S | QUAL_V | QUAL_I | QUAL_RM_C:
+ gen_helper_cvttq_svic(cpu_fir[rc], vb);
break;
default:
- abort();
+ gen_qual_roundmode(ctx, fn11);
+ gen_helper_cvttq(cpu_fir[rc], vb);
+ ignore |= (fn11 & QUAL_V ? 0 : float_flag_overflow);
+ ignore |= (fn11 & QUAL_I ? 0 : float_flag_inexact);
+ break;
}
- tcg_gen_brcondi_i64(TCG_COND_NE, tmp, 0, l1);
- tcg_gen_movi_i64(cpu_pc, ctx->pc);
- tcg_gen_br(l2);
- gen_set_label(l1);
- tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp16 << 2));
- gen_set_label(l2);
+ tcg_temp_free(vb);
+
+ gen_fp_exc_raise_ignore(rc, fn11, ignore);
+}
+
+static void gen_ieee_intcvt(DisasContext *ctx, void (*helper)(TCGv, TCGv),
+ int rb, int rc, int fn11)
+{
+ TCGv vb;
+
+ /* ??? This is wrong: the instruction is not a nop, it still may
+ raise exceptions. */
+ if (unlikely(rc == 31)) {
+ return;
+ }
+
+ gen_qual_roundmode(ctx, fn11);
+
+ if (rb == 31) {
+ vb = tcg_const_i64(0);
+ } else {
+ vb = cpu_fir[rb];
+ }
+
+ /* The only exception that can be raised by integer conversion
+ is inexact. Thus we only need to worry about exceptions when
+ inexact handling is requested. */
+ if (fn11 & QUAL_I) {
+ gen_fp_exc_clear();
+ helper(cpu_fir[rc], vb);
+ gen_fp_exc_raise(rc, fn11);
+ } else {
+ helper(cpu_fir[rc], vb);
+ }
+
+ if (rb == 31) {
+ tcg_temp_free(vb);
+ }
+}
+
+#define IEEE_INTCVT(name) \
+static inline void glue(gen_f, name)(DisasContext *ctx, \
+ int rb, int rc, int fn11) \
+{ \
+ gen_ieee_intcvt(ctx, gen_helper_##name, rb, rc, fn11); \
+}
+IEEE_INTCVT(cvtqs)
+IEEE_INTCVT(cvtqt)
+
+static void gen_cpys_internal(int ra, int rb, int rc, int inv_a, uint64_t mask)
+{
+ TCGv va, vb, vmask;
+ int za = 0, zb = 0;
+
+ if (unlikely(rc == 31)) {
+ return;
+ }
+
+ vmask = tcg_const_i64(mask);
+
+ TCGV_UNUSED_I64(va);
+ if (ra == 31) {
+ if (inv_a) {
+ va = vmask;
+ } else {
+ za = 1;
+ }
+ } else {
+ va = tcg_temp_new_i64();
+ tcg_gen_mov_i64(va, cpu_fir[ra]);
+ if (inv_a) {
+ tcg_gen_andc_i64(va, vmask, va);
+ } else {
+ tcg_gen_and_i64(va, va, vmask);
+ }
+ }
+
+ TCGV_UNUSED_I64(vb);
+ if (rb == 31) {
+ zb = 1;
+ } else {
+ vb = tcg_temp_new_i64();
+ tcg_gen_andc_i64(vb, cpu_fir[rb], vmask);
+ }
+
+ switch (za << 1 | zb) {
+ case 0 | 0:
+ tcg_gen_or_i64(cpu_fir[rc], va, vb);
+ break;
+ case 0 | 1:
+ tcg_gen_mov_i64(cpu_fir[rc], va);
+ break;
+ case 2 | 0:
+ tcg_gen_mov_i64(cpu_fir[rc], vb);
+ break;
+ case 2 | 1:
+ tcg_gen_movi_i64(cpu_fir[rc], 0);
+ break;
+ }
+
+ tcg_temp_free(vmask);
+ if (ra != 31) {
+ tcg_temp_free(va);
+ }
+ if (rb != 31) {
+ tcg_temp_free(vb);
+ }
+}
+
+static inline void gen_fcpys(int ra, int rb, int rc)
+{
+ gen_cpys_internal(ra, rb, rc, 0, 0x8000000000000000ULL);
+}
+
+static inline void gen_fcpysn(int ra, int rb, int rc)
+{
+ gen_cpys_internal(ra, rb, rc, 1, 0x8000000000000000ULL);
+}
+
+static inline void gen_fcpyse(int ra, int rb, int rc)
+{
+ gen_cpys_internal(ra, rb, rc, 0, 0xFFF0000000000000ULL);
+}
+
+#define FARITH3(name) \
+static inline void glue(gen_f, name)(int ra, int rb, int rc) \
+{ \
+ TCGv va, vb; \
+ \
+ if (unlikely(rc == 31)) { \
+ return; \
+ } \
+ if (ra == 31) { \
+ va = tcg_const_i64(0); \
+ } else { \
+ va = cpu_fir[ra]; \
+ } \
+ if (rb == 31) { \
+ vb = tcg_const_i64(0); \
+ } else { \
+ vb = cpu_fir[rb]; \
+ } \
+ \
+ gen_helper_ ## name (cpu_fir[rc], va, vb); \
+ \
+ if (ra == 31) { \
+ tcg_temp_free(va); \
+ } \
+ if (rb == 31) { \
+ tcg_temp_free(vb); \
+ } \
+}
+
+/* ??? VAX instruction qualifiers ignored. */
+FARITH3(addf)
+FARITH3(subf)
+FARITH3(mulf)
+FARITH3(divf)
+FARITH3(addg)
+FARITH3(subg)
+FARITH3(mulg)
+FARITH3(divg)
+FARITH3(cmpgeq)
+FARITH3(cmpglt)
+FARITH3(cmpgle)
+
+static void gen_ieee_arith3(DisasContext *ctx,
+ void (*helper)(TCGv, TCGv, TCGv),
+ int ra, int rb, int rc, int fn11)
+{
+ TCGv va, vb;
+
+ /* ??? This is wrong: the instruction is not a nop, it still may
+ raise exceptions. */
+ if (unlikely(rc == 31)) {
+ return;
+ }
+
+ gen_qual_roundmode(ctx, fn11);
+ gen_qual_flushzero(ctx, fn11);
+ gen_fp_exc_clear();
+
+ va = gen_ieee_input(ra, fn11, 0);
+ vb = gen_ieee_input(rb, fn11, 0);
+ helper(cpu_fir[rc], va, vb);
+ tcg_temp_free(va);
+ tcg_temp_free(vb);
+
+ gen_fp_exc_raise(rc, fn11);
+}
+
+#define IEEE_ARITH3(name) \
+static inline void glue(gen_f, name)(DisasContext *ctx, \
+ int ra, int rb, int rc, int fn11) \
+{ \
+ gen_ieee_arith3(ctx, gen_helper_##name, ra, rb, rc, fn11); \
+}
+IEEE_ARITH3(adds)
+IEEE_ARITH3(subs)
+IEEE_ARITH3(muls)
+IEEE_ARITH3(divs)
+IEEE_ARITH3(addt)
+IEEE_ARITH3(subt)
+IEEE_ARITH3(mult)
+IEEE_ARITH3(divt)
+
+static void gen_ieee_compare(DisasContext *ctx,
+ void (*helper)(TCGv, TCGv, TCGv),
+ int ra, int rb, int rc, int fn11)
+{
+ TCGv va, vb;
+
+ /* ??? This is wrong: the instruction is not a nop, it still may
+ raise exceptions. */
+ if (unlikely(rc == 31)) {
+ return;
+ }
+
+ gen_fp_exc_clear();
+
+ va = gen_ieee_input(ra, fn11, 1);
+ vb = gen_ieee_input(rb, fn11, 1);
+ helper(cpu_fir[rc], va, vb);
+ tcg_temp_free(va);
+ tcg_temp_free(vb);
+
+ gen_fp_exc_raise(rc, fn11);
+}
+
+#define IEEE_CMP3(name) \
+static inline void glue(gen_f, name)(DisasContext *ctx, \
+ int ra, int rb, int rc, int fn11) \
+{ \
+ gen_ieee_compare(ctx, gen_helper_##name, ra, rb, rc, fn11); \
+}
+IEEE_CMP3(cmptun)
+IEEE_CMP3(cmpteq)
+IEEE_CMP3(cmptlt)
+IEEE_CMP3(cmptle)
+
+static inline uint64_t zapnot_mask(uint8_t lit)
+{
+ uint64_t mask = 0;
+ int i;
+
+ for (i = 0; i < 8; ++i) {
+ if ((lit >> i) & 1)
+ mask |= 0xffull << (i * 8);
+ }
+ return mask;
+}
+
+/* Implement zapnot with an immediate operand, which expands to some
+ form of immediate AND. This is a basic building block in the
+ definition of many of the other byte manipulation instructions. */
+static void gen_zapnoti(TCGv dest, TCGv src, uint8_t lit)
+{
+ switch (lit) {
+ case 0x00:
+ tcg_gen_movi_i64(dest, 0);
+ break;
+ case 0x01:
+ tcg_gen_ext8u_i64(dest, src);
+ break;
+ case 0x03:
+ tcg_gen_ext16u_i64(dest, src);
+ break;
+ case 0x0f:
+ tcg_gen_ext32u_i64(dest, src);
+ break;
+ case 0xff:
+ tcg_gen_mov_i64(dest, src);
+ break;
+ default:
+ tcg_gen_andi_i64 (dest, src, zapnot_mask (lit));
+ break;
+ }
+}
+
+static inline void gen_zapnot(int ra, int rb, int rc, int islit, uint8_t lit)
+{
+ if (unlikely(rc == 31))
+ return;
+ else if (unlikely(ra == 31))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else if (islit)
+ gen_zapnoti(cpu_ir[rc], cpu_ir[ra], lit);
+ else
+ gen_helper_zapnot (cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
}
-static always_inline void gen_cmov (TCGCond inv_cond,
- int ra, int rb, int rc,
- int islit, uint8_t lit, int mask)
+static inline void gen_zap(int ra, int rb, int rc, int islit, uint8_t lit)
{
- int l1;
-
if (unlikely(rc == 31))
return;
-
- l1 = gen_new_label();
-
- if (ra != 31) {
- if (mask) {
- TCGv tmp = tcg_temp_new();
- tcg_gen_andi_i64(tmp, cpu_ir[ra], 1);
- tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1);
- tcg_temp_free(tmp);
- } else
- tcg_gen_brcondi_i64(inv_cond, cpu_ir[ra], 0, l1);
- } else {
- /* Very uncommon case - Do not bother to optimize. */
- TCGv tmp = tcg_const_i64(0);
- tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1);
- tcg_temp_free(tmp);
- }
-
- if (islit)
- tcg_gen_movi_i64(cpu_ir[rc], lit);
+ else if (unlikely(ra == 31))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else if (islit)
+ gen_zapnoti(cpu_ir[rc], cpu_ir[ra], ~lit);
else
- tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
- gen_set_label(l1);
+ gen_helper_zap (cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]);
}
-#define FARITH2(name) \
-static always_inline void glue(gen_f, name)(int rb, int rc) \
-{ \
- if (unlikely(rc == 31)) \
- return; \
- \
- if (rb != 31) \
- gen_helper_ ## name (cpu_fir[rc], cpu_fir[rb]); \
- else { \
- TCGv tmp = tcg_const_i64(0); \
- gen_helper_ ## name (cpu_fir[rc], tmp); \
- tcg_temp_free(tmp); \
- } \
-}
-FARITH2(sqrts)
-FARITH2(sqrtf)
-FARITH2(sqrtg)
-FARITH2(sqrtt)
-FARITH2(cvtgf)
-FARITH2(cvtgq)
-FARITH2(cvtqf)
-FARITH2(cvtqg)
-FARITH2(cvtst)
-FARITH2(cvtts)
-FARITH2(cvttq)
-FARITH2(cvtqs)
-FARITH2(cvtqt)
-FARITH2(cvtlq)
-FARITH2(cvtql)
-FARITH2(cvtqlv)
-FARITH2(cvtqlsv)
-
-#define FARITH3(name) \
-static always_inline void glue(gen_f, name) (int ra, int rb, int rc) \
-{ \
- if (unlikely(rc == 31)) \
- return; \
- \
- if (ra != 31) { \
- if (rb != 31) \
- gen_helper_ ## name (cpu_fir[rc], cpu_fir[ra], cpu_fir[rb]); \
- else { \
- TCGv tmp = tcg_const_i64(0); \
- gen_helper_ ## name (cpu_fir[rc], cpu_fir[ra], tmp); \
- tcg_temp_free(tmp); \
- } \
- } else { \
- TCGv tmp = tcg_const_i64(0); \
- if (rb != 31) \
- gen_helper_ ## name (cpu_fir[rc], tmp, cpu_fir[rb]); \
- else \
- gen_helper_ ## name (cpu_fir[rc], tmp, tmp); \
- tcg_temp_free(tmp); \
- } \
-}
-FARITH3(addf)
-FARITH3(subf)
-FARITH3(mulf)
-FARITH3(divf)
-FARITH3(addg)
-FARITH3(subg)
-FARITH3(mulg)
-FARITH3(divg)
-FARITH3(cmpgeq)
-FARITH3(cmpglt)
-FARITH3(cmpgle)
-FARITH3(adds)
-FARITH3(subs)
-FARITH3(muls)
-FARITH3(divs)
-FARITH3(addt)
-FARITH3(subt)
-FARITH3(mult)
-FARITH3(divt)
-FARITH3(cmptun)
-FARITH3(cmpteq)
-FARITH3(cmptlt)
-FARITH3(cmptle)
-FARITH3(cpys)
-FARITH3(cpysn)
-FARITH3(cpyse)
-
-#define FCMOV(name) \
-static always_inline void glue(gen_f, name) (int ra, int rb, int rc) \
-{ \
- int l1; \
- TCGv tmp; \
- \
- if (unlikely(rc == 31)) \
- return; \
- \
- l1 = gen_new_label(); \
- tmp = tcg_temp_new(); \
- if (ra != 31) { \
- tmp = tcg_temp_new(); \
- gen_helper_ ## name (tmp, cpu_fir[ra]); \
- } else { \
- tmp = tcg_const_i64(0); \
- gen_helper_ ## name (tmp, tmp); \
- } \
- tcg_gen_brcondi_i64(TCG_COND_EQ, tmp, 0, l1); \
- if (rb != 31) \
- tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]); \
- else \
- tcg_gen_movi_i64(cpu_fir[rc], 0); \
- gen_set_label(l1); \
-}
-FCMOV(cmpfeq)
-FCMOV(cmpfne)
-FCMOV(cmpflt)
-FCMOV(cmpfge)
-FCMOV(cmpfle)
-FCMOV(cmpfgt)
-
-/* EXTWH, EXTWH, EXTLH, EXTQH */
-static always_inline void gen_ext_h(void (*tcg_gen_ext_i64)(TCGv t0, TCGv t1),
- int ra, int rb, int rc,
- int islit, uint8_t lit)
+/* EXTWH, EXTLH, EXTQH */
+static void gen_ext_h(int ra, int rb, int rc, int islit,
+ uint8_t lit, uint8_t byte_mask)
{
if (unlikely(rc == 31))
return;
-
- if (ra != 31) {
+ else if (unlikely(ra == 31))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else {
if (islit) {
- if (lit != 0)
- tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], 64 - ((lit & 7) * 8));
- else
- tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[ra]);
+ lit = (64 - (lit & 7) * 8) & 0x3f;
+ tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], lit);
} else {
- TCGv tmp1, tmp2;
- tmp1 = tcg_temp_new();
+ TCGv tmp1 = tcg_temp_new();
tcg_gen_andi_i64(tmp1, cpu_ir[rb], 7);
tcg_gen_shli_i64(tmp1, tmp1, 3);
- tmp2 = tcg_const_i64(64);
- tcg_gen_sub_i64(tmp1, tmp2, tmp1);
- tcg_temp_free(tmp2);
+ tcg_gen_neg_i64(tmp1, tmp1);
+ tcg_gen_andi_i64(tmp1, tmp1, 0x3f);
tcg_gen_shl_i64(cpu_ir[rc], cpu_ir[ra], tmp1);
tcg_temp_free(tmp1);
}
- if (tcg_gen_ext_i64)
- tcg_gen_ext_i64(cpu_ir[rc], cpu_ir[rc]);
- } else
- tcg_gen_movi_i64(cpu_ir[rc], 0);
+ gen_zapnoti(cpu_ir[rc], cpu_ir[rc], byte_mask);
+ }
}
-/* EXTBL, EXTWL, EXTWL, EXTLL, EXTQL */
-static always_inline void gen_ext_l(void (*tcg_gen_ext_i64)(TCGv t0, TCGv t1),
- int ra, int rb, int rc,
- int islit, uint8_t lit)
+/* EXTBL, EXTWL, EXTLL, EXTQL */
+static void gen_ext_l(int ra, int rb, int rc, int islit,
+ uint8_t lit, uint8_t byte_mask)
{
if (unlikely(rc == 31))
return;
-
- if (ra != 31) {
+ else if (unlikely(ra == 31))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else {
if (islit) {
- tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], (lit & 7) * 8);
+ tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], (lit & 7) * 8);
} else {
TCGv tmp = tcg_temp_new();
tcg_gen_andi_i64(tmp, cpu_ir[rb], 7);
tcg_gen_shr_i64(cpu_ir[rc], cpu_ir[ra], tmp);
tcg_temp_free(tmp);
}
- if (tcg_gen_ext_i64)
- tcg_gen_ext_i64(cpu_ir[rc], cpu_ir[rc]);
- } else
+ gen_zapnoti(cpu_ir[rc], cpu_ir[rc], byte_mask);
+ }
+}
+
+/* INSWH, INSLH, INSQH */
+static void gen_ins_h(int ra, int rb, int rc, int islit,
+ uint8_t lit, uint8_t byte_mask)
+{
+ if (unlikely(rc == 31))
+ return;
+ else if (unlikely(ra == 31) || (islit && (lit & 7) == 0))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else {
+ TCGv tmp = tcg_temp_new();
+
+ /* The instruction description has us left-shift the byte mask
+ and extract bits <15:8> and apply that zap at the end. This
+ is equivalent to simply performing the zap first and shifting
+ afterward. */
+ gen_zapnoti (tmp, cpu_ir[ra], byte_mask);
+
+ if (islit) {
+ /* Note that we have handled the lit==0 case above. */
+ tcg_gen_shri_i64 (cpu_ir[rc], tmp, 64 - (lit & 7) * 8);
+ } else {
+ TCGv shift = tcg_temp_new();
+
+ /* If (B & 7) == 0, we need to shift by 64 and leave a zero.
+ Do this portably by splitting the shift into two parts:
+ shift_count-1 and 1. Arrange for the -1 by using
+ ones-complement instead of twos-complement in the negation:
+ ~((B & 7) * 8) & 63. */
+
+ tcg_gen_andi_i64(shift, cpu_ir[rb], 7);
+ tcg_gen_shli_i64(shift, shift, 3);
+ tcg_gen_not_i64(shift, shift);
+ tcg_gen_andi_i64(shift, shift, 0x3f);
+
+ tcg_gen_shr_i64(cpu_ir[rc], tmp, shift);
+ tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[rc], 1);
+ tcg_temp_free(shift);
+ }
+ tcg_temp_free(tmp);
+ }
+}
+
+/* INSBL, INSWL, INSLL, INSQL */
+static void gen_ins_l(int ra, int rb, int rc, int islit,
+ uint8_t lit, uint8_t byte_mask)
+{
+ if (unlikely(rc == 31))
+ return;
+ else if (unlikely(ra == 31))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else {
+ TCGv tmp = tcg_temp_new();
+
+ /* The instruction description has us left-shift the byte mask
+ the same number of byte slots as the data and apply the zap
+ at the end. This is equivalent to simply performing the zap
+ first and shifting afterward. */
+ gen_zapnoti (tmp, cpu_ir[ra], byte_mask);
+
+ if (islit) {
+ tcg_gen_shli_i64(cpu_ir[rc], tmp, (lit & 7) * 8);
+ } else {
+ TCGv shift = tcg_temp_new();
+ tcg_gen_andi_i64(shift, cpu_ir[rb], 7);
+ tcg_gen_shli_i64(shift, shift, 3);
+ tcg_gen_shl_i64(cpu_ir[rc], tmp, shift);
+ tcg_temp_free(shift);
+ }
+ tcg_temp_free(tmp);
+ }
+}
+
+/* MSKWH, MSKLH, MSKQH */
+static void gen_msk_h(int ra, int rb, int rc, int islit,
+ uint8_t lit, uint8_t byte_mask)
+{
+ if (unlikely(rc == 31))
+ return;
+ else if (unlikely(ra == 31))
+ tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else if (islit) {
+ gen_zapnoti (cpu_ir[rc], cpu_ir[ra], ~((byte_mask << (lit & 7)) >> 8));
+ } else {
+ TCGv shift = tcg_temp_new();
+ TCGv mask = tcg_temp_new();
+
+ /* The instruction description is as above, where the byte_mask
+ is shifted left, and then we extract bits <15:8>. This can be
+ emulated with a right-shift on the expanded byte mask. This
+ requires extra care because for an input <2:0> == 0 we need a
+ shift of 64 bits in order to generate a zero. This is done by
+ splitting the shift into two parts, the variable shift - 1
+ followed by a constant 1 shift. The code we expand below is
+ equivalent to ~((B & 7) * 8) & 63. */
+
+ tcg_gen_andi_i64(shift, cpu_ir[rb], 7);
+ tcg_gen_shli_i64(shift, shift, 3);
+ tcg_gen_not_i64(shift, shift);
+ tcg_gen_andi_i64(shift, shift, 0x3f);
+ tcg_gen_movi_i64(mask, zapnot_mask (byte_mask));
+ tcg_gen_shr_i64(mask, mask, shift);
+ tcg_gen_shri_i64(mask, mask, 1);
+
+ tcg_gen_andc_i64(cpu_ir[rc], cpu_ir[ra], mask);
+
+ tcg_temp_free(mask);
+ tcg_temp_free(shift);
+ }
+}
+
+/* MSKBL, MSKWL, MSKLL, MSKQL */
+static void gen_msk_l(int ra, int rb, int rc, int islit,
+ uint8_t lit, uint8_t byte_mask)
+{
+ if (unlikely(rc == 31))
+ return;
+ else if (unlikely(ra == 31))
tcg_gen_movi_i64(cpu_ir[rc], 0);
+ else if (islit) {
+ gen_zapnoti (cpu_ir[rc], cpu_ir[ra], ~(byte_mask << (lit & 7)));
+ } else {
+ TCGv shift = tcg_temp_new();
+ TCGv mask = tcg_temp_new();
+
+ tcg_gen_andi_i64(shift, cpu_ir[rb], 7);
+ tcg_gen_shli_i64(shift, shift, 3);
+ tcg_gen_movi_i64(mask, zapnot_mask (byte_mask));
+ tcg_gen_shl_i64(mask, mask, shift);
+
+ tcg_gen_andc_i64(cpu_ir[rc], cpu_ir[ra], mask);
+
+ tcg_temp_free(mask);
+ tcg_temp_free(shift);
+ }
}
/* Code to call arith3 helpers */
#define ARITH3(name) \
-static always_inline void glue(gen_, name) (int ra, int rb, int rc, \
- int islit, uint8_t lit) \
+static inline void glue(gen_, name)(int ra, int rb, int rc, int islit,\
+ uint8_t lit) \
{ \
if (unlikely(rc == 31)) \
return; \
ARITH3(sublv)
ARITH3(addqv)
ARITH3(subqv)
-ARITH3(mskbl)
-ARITH3(insbl)
-ARITH3(mskwl)
-ARITH3(inswl)
-ARITH3(mskll)
-ARITH3(insll)
-ARITH3(zap)
-ARITH3(zapnot)
-ARITH3(mskql)
-ARITH3(insql)
-ARITH3(mskwh)
-ARITH3(inswh)
-ARITH3(msklh)
-ARITH3(inslh)
-ARITH3(mskqh)
-ARITH3(insqh)
ARITH3(umulh)
ARITH3(mullv)
ARITH3(mulqv)
+ARITH3(minub8)
+ARITH3(minsb8)
+ARITH3(minuw4)
+ARITH3(minsw4)
+ARITH3(maxub8)
+ARITH3(maxsb8)
+ARITH3(maxuw4)
+ARITH3(maxsw4)
+ARITH3(perr)
+
+#define MVIOP2(name) \
+static inline void glue(gen_, name)(int rb, int rc) \
+{ \
+ if (unlikely(rc == 31)) \
+ return; \
+ if (unlikely(rb == 31)) \
+ tcg_gen_movi_i64(cpu_ir[rc], 0); \
+ else \
+ gen_helper_ ## name (cpu_ir[rc], cpu_ir[rb]); \
+}
+MVIOP2(pklb)
+MVIOP2(pkwb)
+MVIOP2(unpkbl)
+MVIOP2(unpkbw)
-static always_inline void gen_cmp(TCGCond cond,
- int ra, int rb, int rc,
- int islit, uint8_t lit)
+static void gen_cmp(TCGCond cond, int ra, int rb, int rc,
+ int islit, uint8_t lit)
{
- int l1, l2;
- TCGv tmp;
+ TCGv va, vb;
- if (unlikely(rc == 31))
- return;
+ if (unlikely(rc == 31)) {
+ return;
+ }
- l1 = gen_new_label();
- l2 = gen_new_label();
+ if (ra == 31) {
+ va = tcg_const_i64(0);
+ } else {
+ va = cpu_ir[ra];
+ }
+ if (islit) {
+ vb = tcg_const_i64(lit);
+ } else {
+ vb = cpu_ir[rb];
+ }
+
+ tcg_gen_setcond_i64(cond, cpu_ir[rc], va, vb);
+
+ if (ra == 31) {
+ tcg_temp_free(va);
+ }
+ if (islit) {
+ tcg_temp_free(vb);
+ }
+}
+
+static void gen_rx(int ra, int set)
+{
+ TCGv_i32 tmp;
if (ra != 31) {
- tmp = tcg_temp_new();
- tcg_gen_mov_i64(tmp, cpu_ir[ra]);
- } else
- tmp = tcg_const_i64(0);
- if (islit)
- tcg_gen_brcondi_i64(cond, tmp, lit, l1);
- else
- tcg_gen_brcond_i64(cond, tmp, cpu_ir[rb], l1);
+ tcg_gen_ld8u_i64(cpu_ir[ra], cpu_env, offsetof(CPUState, intr_flag));
+ }
- tcg_gen_movi_i64(cpu_ir[rc], 0);
- tcg_gen_br(l2);
- gen_set_label(l1);
- tcg_gen_movi_i64(cpu_ir[rc], 1);
- gen_set_label(l2);
+ tmp = tcg_const_i32(set);
+ tcg_gen_st8_i32(tmp, cpu_env, offsetof(CPUState, intr_flag));
+ tcg_temp_free_i32(tmp);
}
-static always_inline int translate_one (DisasContext *ctx, uint32_t insn)
+static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
{
uint32_t palcode;
int32_t disp21, disp16, disp12;
- uint16_t fn11, fn16;
- uint8_t opc, ra, rb, rc, sbz, fpfn, fn7, fn2, islit;
+ uint16_t fn11;
+ uint8_t opc, ra, rb, rc, fpfn, fn7, fn2, islit, real_islit;
uint8_t lit;
- int ret;
+ ExitStatus ret;
/* Decode all instruction fields */
opc = insn >> 26;
ra = (insn >> 21) & 0x1F;
rb = (insn >> 16) & 0x1F;
rc = insn & 0x1F;
- sbz = (insn >> 13) & 0x07;
- islit = (insn >> 12) & 1;
+ real_islit = islit = (insn >> 12) & 1;
if (rb == 31 && !islit) {
islit = 1;
lit = 0;
disp21 = ((int32_t)((insn & 0x001FFFFF) << 11)) >> 11;
disp16 = (int16_t)(insn & 0x0000FFFF);
disp12 = (int32_t)((insn & 0x00000FFF) << 20) >> 20;
- fn16 = insn & 0x0000FFFF;
fn11 = (insn >> 5) & 0x000007FF;
fpfn = fn11 & 0x3F;
fn7 = (insn >> 5) & 0x0000007F;
fn2 = (insn >> 5) & 0x00000003;
- ret = 0;
- LOG_DISAS("opc %02x ra %d rb %d rc %d disp16 %04x\n",
+ LOG_DISAS("opc %02x ra %2d rb %2d rc %2d disp16 %6d\n",
opc, ra, rb, rc, disp16);
+
+ ret = NO_EXIT;
switch (opc) {
case 0x00:
/* CALL_PAL */
+#ifdef CONFIG_USER_ONLY
+ if (palcode == 0x9E) {
+ /* RDUNIQUE */
+ tcg_gen_mov_i64(cpu_ir[IR_V0], cpu_uniq);
+ break;
+ } else if (palcode == 0x9F) {
+ /* WRUNIQUE */
+ tcg_gen_mov_i64(cpu_uniq, cpu_ir[IR_A0]);
+ break;
+ }
+#endif
if (palcode >= 0x80 && palcode < 0xC0) {
/* Unprivileged PAL call */
- gen_excp(ctx, EXCP_CALL_PAL + ((palcode & 0x3F) << 6), 0);
-#if !defined (CONFIG_USER_ONLY)
- } else if (palcode < 0x40) {
+ ret = gen_excp(ctx, EXCP_CALL_PAL + ((palcode & 0x3F) << 6), 0);
+ break;
+ }
+#ifndef CONFIG_USER_ONLY
+ if (palcode < 0x40) {
/* Privileged PAL code */
if (ctx->mem_idx & 1)
goto invalid_opc;
- else
- gen_excp(ctx, EXCP_CALL_PALP + ((palcode & 0x3F) << 6), 0);
-#endif
- } else {
- /* Invalid PAL call */
- goto invalid_opc;
+ ret = gen_excp(ctx, EXCP_CALL_PALP + ((palcode & 0x3F) << 6), 0);
}
- ret = 3;
- break;
+#endif
+ /* Invalid PAL call */
+ goto invalid_opc;
case 0x01:
/* OPC01 */
goto invalid_opc;
break;
case 0x0D:
/* STW */
- gen_store_mem(ctx, &tcg_gen_qemu_st16, ra, rb, disp16, 0, 0, 0);
+ gen_store_mem(ctx, &tcg_gen_qemu_st16, ra, rb, disp16, 0, 0);
break;
case 0x0E:
/* STB */
- gen_store_mem(ctx, &tcg_gen_qemu_st8, ra, rb, disp16, 0, 0, 0);
+ gen_store_mem(ctx, &tcg_gen_qemu_st8, ra, rb, disp16, 0, 0);
break;
case 0x0F:
/* STQ_U */
- gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 1, 0);
+ gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 1);
break;
case 0x10:
switch (fn7) {
break;
case 0x14:
/* CMOVLBS */
- gen_cmov(TCG_COND_EQ, ra, rb, rc, islit, lit, 1);
+ gen_cmov(TCG_COND_NE, ra, rb, rc, islit, lit, 1);
break;
case 0x16:
/* CMOVLBC */
- gen_cmov(TCG_COND_NE, ra, rb, rc, islit, lit, 1);
+ gen_cmov(TCG_COND_EQ, ra, rb, rc, islit, lit, 1);
break;
case 0x20:
/* BIS */
break;
case 0x24:
/* CMOVEQ */
- gen_cmov(TCG_COND_NE, ra, rb, rc, islit, lit, 0);
+ gen_cmov(TCG_COND_EQ, ra, rb, rc, islit, lit, 0);
break;
case 0x26:
/* CMOVNE */
- gen_cmov(TCG_COND_EQ, ra, rb, rc, islit, lit, 0);
+ gen_cmov(TCG_COND_NE, ra, rb, rc, islit, lit, 0);
break;
case 0x28:
/* ORNOT */
break;
case 0x44:
/* CMOVLT */
- gen_cmov(TCG_COND_GE, ra, rb, rc, islit, lit, 0);
+ gen_cmov(TCG_COND_LT, ra, rb, rc, islit, lit, 0);
break;
case 0x46:
/* CMOVGE */
- gen_cmov(TCG_COND_LT, ra, rb, rc, islit, lit, 0);
+ gen_cmov(TCG_COND_GE, ra, rb, rc, islit, lit, 0);
break;
case 0x48:
/* EQV */
/* AMASK */
if (likely(rc != 31)) {
if (islit)
- tcg_gen_movi_i64(cpu_ir[rc], helper_amask(lit));
+ tcg_gen_movi_i64(cpu_ir[rc], lit);
else
- gen_helper_amask(cpu_ir[rc], cpu_ir[rb]);
+ tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]);
+ switch (ctx->env->implver) {
+ case IMPLVER_2106x:
+ /* EV4, EV45, LCA, LCA45 & EV5 */
+ break;
+ case IMPLVER_21164:
+ case IMPLVER_21264:
+ case IMPLVER_21364:
+ tcg_gen_andi_i64(cpu_ir[rc], cpu_ir[rc],
+ ~(uint64_t)ctx->amask);
+ break;
+ }
}
break;
case 0x64:
/* CMOVLE */
- gen_cmov(TCG_COND_GT, ra, rb, rc, islit, lit, 0);
+ gen_cmov(TCG_COND_LE, ra, rb, rc, islit, lit, 0);
break;
case 0x66:
/* CMOVGT */
- gen_cmov(TCG_COND_LE, ra, rb, rc, islit, lit, 0);
+ gen_cmov(TCG_COND_GT, ra, rb, rc, islit, lit, 0);
break;
case 0x6C:
/* IMPLVER */
switch (fn7) {
case 0x02:
/* MSKBL */
- gen_mskbl(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0x01);
break;
case 0x06:
/* EXTBL */
- gen_ext_l(&tcg_gen_ext8u_i64, ra, rb, rc, islit, lit);
+ gen_ext_l(ra, rb, rc, islit, lit, 0x01);
break;
case 0x0B:
/* INSBL */
- gen_insbl(ra, rb, rc, islit, lit);
+ gen_ins_l(ra, rb, rc, islit, lit, 0x01);
break;
case 0x12:
/* MSKWL */
- gen_mskwl(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0x03);
break;
case 0x16:
/* EXTWL */
- gen_ext_l(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit);
+ gen_ext_l(ra, rb, rc, islit, lit, 0x03);
break;
case 0x1B:
/* INSWL */
- gen_inswl(ra, rb, rc, islit, lit);
+ gen_ins_l(ra, rb, rc, islit, lit, 0x03);
break;
case 0x22:
/* MSKLL */
- gen_mskll(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0x0f);
break;
case 0x26:
/* EXTLL */
- gen_ext_l(&tcg_gen_ext32u_i64, ra, rb, rc, islit, lit);
+ gen_ext_l(ra, rb, rc, islit, lit, 0x0f);
break;
case 0x2B:
/* INSLL */
- gen_insll(ra, rb, rc, islit, lit);
+ gen_ins_l(ra, rb, rc, islit, lit, 0x0f);
break;
case 0x30:
/* ZAP */
break;
case 0x32:
/* MSKQL */
- gen_mskql(ra, rb, rc, islit, lit);
+ gen_msk_l(ra, rb, rc, islit, lit, 0xff);
break;
case 0x34:
/* SRL */
break;
case 0x36:
/* EXTQL */
- gen_ext_l(NULL, ra, rb, rc, islit, lit);
+ gen_ext_l(ra, rb, rc, islit, lit, 0xff);
break;
case 0x39:
/* SLL */
break;
case 0x3B:
/* INSQL */
- gen_insql(ra, rb, rc, islit, lit);
+ gen_ins_l(ra, rb, rc, islit, lit, 0xff);
break;
case 0x3C:
/* SRA */
break;
case 0x52:
/* MSKWH */
- gen_mskwh(ra, rb, rc, islit, lit);
+ gen_msk_h(ra, rb, rc, islit, lit, 0x03);
break;
case 0x57:
/* INSWH */
- gen_inswh(ra, rb, rc, islit, lit);
+ gen_ins_h(ra, rb, rc, islit, lit, 0x03);
break;
case 0x5A:
/* EXTWH */
- gen_ext_h(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit);
+ gen_ext_h(ra, rb, rc, islit, lit, 0x03);
break;
case 0x62:
/* MSKLH */
- gen_msklh(ra, rb, rc, islit, lit);
+ gen_msk_h(ra, rb, rc, islit, lit, 0x0f);
break;
case 0x67:
/* INSLH */
- gen_inslh(ra, rb, rc, islit, lit);
+ gen_ins_h(ra, rb, rc, islit, lit, 0x0f);
break;
case 0x6A:
/* EXTLH */
- gen_ext_h(&tcg_gen_ext16u_i64, ra, rb, rc, islit, lit);
+ gen_ext_h(ra, rb, rc, islit, lit, 0x0f);
break;
case 0x72:
/* MSKQH */
- gen_mskqh(ra, rb, rc, islit, lit);
+ gen_msk_h(ra, rb, rc, islit, lit, 0xff);
break;
case 0x77:
/* INSQH */
- gen_insqh(ra, rb, rc, islit, lit);
+ gen_ins_h(ra, rb, rc, islit, lit, 0xff);
break;
case 0x7A:
/* EXTQH */
- gen_ext_h(NULL, ra, rb, rc, islit, lit);
+ gen_ext_h(ra, rb, rc, islit, lit, 0xff);
break;
default:
goto invalid_opc;
}
break;
case 0x14:
- switch (fpfn) { /* f11 & 0x3F */
+ switch (fpfn) { /* fn11 & 0x3F */
case 0x04:
/* ITOFS */
if (!(ctx->amask & AMASK_FIX))
/* SQRTS */
if (!(ctx->amask & AMASK_FIX))
goto invalid_opc;
- gen_fsqrts(rb, rc);
+ gen_fsqrts(ctx, rb, rc, fn11);
break;
case 0x14:
/* ITOFF */
/* SQRTT */
if (!(ctx->amask & AMASK_FIX))
goto invalid_opc;
- gen_fsqrtt(rb, rc);
+ gen_fsqrtt(ctx, rb, rc, fn11);
break;
default:
goto invalid_opc;
case 0x15:
/* VAX floating point */
/* XXX: rounding mode and trap are ignored (!) */
- switch (fpfn) { /* f11 & 0x3F */
+ switch (fpfn) { /* fn11 & 0x3F */
case 0x00:
/* ADDF */
gen_faddf(ra, rb, rc);
break;
case 0x16:
/* IEEE floating-point */
- /* XXX: rounding mode and traps are ignored (!) */
- switch (fpfn) { /* f11 & 0x3F */
+ switch (fpfn) { /* fn11 & 0x3F */
case 0x00:
/* ADDS */
- gen_fadds(ra, rb, rc);
+ gen_fadds(ctx, ra, rb, rc, fn11);
break;
case 0x01:
/* SUBS */
- gen_fsubs(ra, rb, rc);
+ gen_fsubs(ctx, ra, rb, rc, fn11);
break;
case 0x02:
/* MULS */
- gen_fmuls(ra, rb, rc);
+ gen_fmuls(ctx, ra, rb, rc, fn11);
break;
case 0x03:
/* DIVS */
- gen_fdivs(ra, rb, rc);
+ gen_fdivs(ctx, ra, rb, rc, fn11);
break;
case 0x20:
/* ADDT */
- gen_faddt(ra, rb, rc);
+ gen_faddt(ctx, ra, rb, rc, fn11);
break;
case 0x21:
/* SUBT */
- gen_fsubt(ra, rb, rc);
+ gen_fsubt(ctx, ra, rb, rc, fn11);
break;
case 0x22:
/* MULT */
- gen_fmult(ra, rb, rc);
+ gen_fmult(ctx, ra, rb, rc, fn11);
break;
case 0x23:
/* DIVT */
- gen_fdivt(ra, rb, rc);
+ gen_fdivt(ctx, ra, rb, rc, fn11);
break;
case 0x24:
/* CMPTUN */
- gen_fcmptun(ra, rb, rc);
+ gen_fcmptun(ctx, ra, rb, rc, fn11);
break;
case 0x25:
/* CMPTEQ */
- gen_fcmpteq(ra, rb, rc);
+ gen_fcmpteq(ctx, ra, rb, rc, fn11);
break;
case 0x26:
/* CMPTLT */
- gen_fcmptlt(ra, rb, rc);
+ gen_fcmptlt(ctx, ra, rb, rc, fn11);
break;
case 0x27:
/* CMPTLE */
- gen_fcmptle(ra, rb, rc);
+ gen_fcmptle(ctx, ra, rb, rc, fn11);
break;
case 0x2C:
- /* XXX: incorrect */
if (fn11 == 0x2AC || fn11 == 0x6AC) {
/* CVTST */
- gen_fcvtst(rb, rc);
+ gen_fcvtst(ctx, rb, rc, fn11);
} else {
/* CVTTS */
- gen_fcvtts(rb, rc);
+ gen_fcvtts(ctx, rb, rc, fn11);
}
break;
case 0x2F:
/* CVTTQ */
- gen_fcvttq(rb, rc);
+ gen_fcvttq(ctx, rb, rc, fn11);
break;
case 0x3C:
/* CVTQS */
- gen_fcvtqs(rb, rc);
+ gen_fcvtqs(ctx, rb, rc, fn11);
break;
case 0x3E:
/* CVTQT */
- gen_fcvtqt(rb, rc);
+ gen_fcvtqt(ctx, rb, rc, fn11);
break;
default:
goto invalid_opc;
break;
case 0x020:
if (likely(rc != 31)) {
- if (ra == rb)
+ if (ra == rb) {
/* FMOV */
- tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]);
- else
+ if (ra == 31)
+ tcg_gen_movi_i64(cpu_fir[rc], 0);
+ else
+ tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]);
+ } else {
/* CPYS */
gen_fcpys(ra, rb, rc);
+ }
}
break;
case 0x021:
break;
case 0x02A:
/* FCMOVEQ */
- gen_fcmpfeq(ra, rb, rc);
+ gen_fcmov(TCG_COND_EQ, ra, rb, rc);
break;
case 0x02B:
/* FCMOVNE */
- gen_fcmpfne(ra, rb, rc);
+ gen_fcmov(TCG_COND_NE, ra, rb, rc);
break;
case 0x02C:
/* FCMOVLT */
- gen_fcmpflt(ra, rb, rc);
+ gen_fcmov(TCG_COND_LT, ra, rb, rc);
break;
case 0x02D:
/* FCMOVGE */
- gen_fcmpfge(ra, rb, rc);
+ gen_fcmov(TCG_COND_GE, ra, rb, rc);
break;
case 0x02E:
/* FCMOVLE */
- gen_fcmpfle(ra, rb, rc);
+ gen_fcmov(TCG_COND_LE, ra, rb, rc);
break;
case 0x02F:
/* FCMOVGT */
- gen_fcmpfgt(ra, rb, rc);
+ gen_fcmov(TCG_COND_GT, ra, rb, rc);
break;
case 0x030:
/* CVTQL */
break;
case 0x130:
/* CVTQL/V */
- gen_fcvtqlv(rb, rc);
- break;
case 0x530:
/* CVTQL/SV */
- gen_fcvtqlsv(rb, rc);
+ /* ??? I'm pretty sure there's nothing that /sv needs to do that
+ /v doesn't do. The only thing I can think is that /sv is a
+ valid instruction merely for completeness in the ISA. */
+ gen_fcvtql_v(ctx, rb, rc);
break;
default:
goto invalid_opc;
switch ((uint16_t)disp16) {
case 0x0000:
/* TRAPB */
- /* No-op. Just exit from the current tb */
- ret = 2;
+ /* No-op. */
break;
case 0x0400:
/* EXCB */
- /* No-op. Just exit from the current tb */
- ret = 2;
+ /* No-op. */
break;
case 0x4000:
/* MB */
break;
case 0xE000:
/* RC */
- if (ra != 31)
- gen_helper_rc(cpu_ir[ra]);
+ gen_rx(ra, 0);
break;
case 0xE800:
/* ECB */
- /* XXX: TODO: evict tb cache at address rb */
-#if 0
- ret = 2;
-#else
- goto invalid_opc;
-#endif
break;
case 0xF000:
/* RS */
- if (ra != 31)
- gen_helper_rs(cpu_ir[ra]);
+ gen_rx(ra, 1);
break;
case 0xF800:
/* WH64 */
break;
#endif
case 0x1A:
- if (rb != 31)
+ /* JMP, JSR, RET, JSR_COROUTINE. These only differ by the branch
+ prediction stack action, which of course we don't implement. */
+ if (rb != 31) {
tcg_gen_andi_i64(cpu_pc, cpu_ir[rb], ~3);
- else
+ } else {
tcg_gen_movi_i64(cpu_pc, 0);
- if (ra != 31)
+ }
+ if (ra != 31) {
tcg_gen_movi_i64(cpu_ir[ra], ctx->pc);
- /* Those four jumps only differ by the branch prediction hint */
- switch (fn2) {
- case 0x0:
- /* JMP */
- break;
- case 0x1:
- /* JSR */
- break;
- case 0x2:
- /* RET */
- break;
- case 0x3:
- /* JSR_COROUTINE */
- break;
}
- ret = 1;
+ ret = EXIT_PC_UPDATED;
break;
case 0x1B:
/* HW_LD (PALcode) */
/* PERR */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_perr(ra, rb, rc, islit, lit);
break;
case 0x32:
/* CTLZ */
/* UNPKBW */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ if (real_islit || ra != 31)
+ goto invalid_opc;
+ gen_unpkbw (rb, rc);
break;
case 0x35:
- /* UNPKWL */
+ /* UNPKBL */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ if (real_islit || ra != 31)
+ goto invalid_opc;
+ gen_unpkbl (rb, rc);
break;
case 0x36:
/* PKWB */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ if (real_islit || ra != 31)
+ goto invalid_opc;
+ gen_pkwb (rb, rc);
break;
case 0x37:
/* PKLB */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ if (real_islit || ra != 31)
+ goto invalid_opc;
+ gen_pklb (rb, rc);
break;
case 0x38:
/* MINSB8 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_minsb8 (ra, rb, rc, islit, lit);
break;
case 0x39:
/* MINSW4 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_minsw4 (ra, rb, rc, islit, lit);
break;
case 0x3A:
/* MINUB8 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_minub8 (ra, rb, rc, islit, lit);
break;
case 0x3B:
/* MINUW4 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_minuw4 (ra, rb, rc, islit, lit);
break;
case 0x3C:
/* MAXUB8 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_maxub8 (ra, rb, rc, islit, lit);
break;
case 0x3D:
/* MAXUW4 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_maxuw4 (ra, rb, rc, islit, lit);
break;
case 0x3E:
/* MAXSB8 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_maxsb8 (ra, rb, rc, islit, lit);
break;
case 0x3F:
/* MAXSW4 */
if (!(ctx->amask & AMASK_MVI))
goto invalid_opc;
- /* XXX: TODO */
- goto invalid_opc;
+ gen_maxsw4 (ra, rb, rc, islit, lit);
break;
case 0x70:
/* FTOIT */
tcg_temp_free(tmp2);
}
tcg_temp_free(tmp1);
- ret = 2;
+ ret = EXIT_PC_STALE;
}
break;
#endif
gen_helper_hw_ret(tmp);
tcg_temp_free(tmp);
}
- ret = 2;
+ ret = EXIT_PC_UPDATED;
break;
#endif
case 0x1F:
break;
case 0x24:
/* STF */
- gen_store_mem(ctx, &gen_qemu_stf, ra, rb, disp16, 1, 0, 0);
+ gen_store_mem(ctx, &gen_qemu_stf, ra, rb, disp16, 1, 0);
break;
case 0x25:
/* STG */
- gen_store_mem(ctx, &gen_qemu_stg, ra, rb, disp16, 1, 0, 0);
+ gen_store_mem(ctx, &gen_qemu_stg, ra, rb, disp16, 1, 0);
break;
case 0x26:
/* STS */
- gen_store_mem(ctx, &gen_qemu_sts, ra, rb, disp16, 1, 0, 0);
+ gen_store_mem(ctx, &gen_qemu_sts, ra, rb, disp16, 1, 0);
break;
case 0x27:
/* STT */
- gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 1, 0, 0);
+ gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 1, 0);
break;
case 0x28:
/* LDL */
break;
case 0x2C:
/* STL */
- gen_store_mem(ctx, &tcg_gen_qemu_st32, ra, rb, disp16, 0, 0, 0);
+ gen_store_mem(ctx, &tcg_gen_qemu_st32, ra, rb, disp16, 0, 0);
break;
case 0x2D:
/* STQ */
- gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 0, 0);
+ gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 0);
break;
case 0x2E:
/* STL_C */
- gen_store_mem(ctx, &gen_qemu_stl_c, ra, rb, disp16, 0, 0, 1);
+ ret = gen_store_conditional(ctx, ra, rb, disp16, 0);
break;
case 0x2F:
/* STQ_C */
- gen_store_mem(ctx, &gen_qemu_stq_c, ra, rb, disp16, 0, 0, 1);
+ ret = gen_store_conditional(ctx, ra, rb, disp16, 1);
break;
case 0x30:
/* BR */
- if (ra != 31)
- tcg_gen_movi_i64(cpu_ir[ra], ctx->pc);
- tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp21 << 2));
- ret = 1;
+ ret = gen_bdirect(ctx, ra, disp21);
break;
case 0x31: /* FBEQ */
+ ret = gen_fbcond(ctx, TCG_COND_EQ, ra, disp21);
+ break;
case 0x32: /* FBLT */
+ ret = gen_fbcond(ctx, TCG_COND_LT, ra, disp21);
+ break;
case 0x33: /* FBLE */
- gen_fbcond(ctx, opc, ra, disp16);
- ret = 1;
+ ret = gen_fbcond(ctx, TCG_COND_LE, ra, disp21);
break;
case 0x34:
/* BSR */
- if (ra != 31)
- tcg_gen_movi_i64(cpu_ir[ra], ctx->pc);
- tcg_gen_movi_i64(cpu_pc, ctx->pc + (int64_t)(disp21 << 2));
- ret = 1;
+ ret = gen_bdirect(ctx, ra, disp21);
break;
case 0x35: /* FBNE */
+ ret = gen_fbcond(ctx, TCG_COND_NE, ra, disp21);
+ break;
case 0x36: /* FBGE */
+ ret = gen_fbcond(ctx, TCG_COND_GE, ra, disp21);
+ break;
case 0x37: /* FBGT */
- gen_fbcond(ctx, opc, ra, disp16);
- ret = 1;
+ ret = gen_fbcond(ctx, TCG_COND_GT, ra, disp21);
break;
case 0x38:
/* BLBC */
- gen_bcond(ctx, TCG_COND_EQ, ra, disp21, 1);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_EQ, ra, disp21, 1);
break;
case 0x39:
/* BEQ */
- gen_bcond(ctx, TCG_COND_EQ, ra, disp21, 0);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_EQ, ra, disp21, 0);
break;
case 0x3A:
/* BLT */
- gen_bcond(ctx, TCG_COND_LT, ra, disp21, 0);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_LT, ra, disp21, 0);
break;
case 0x3B:
/* BLE */
- gen_bcond(ctx, TCG_COND_LE, ra, disp21, 0);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_LE, ra, disp21, 0);
break;
case 0x3C:
/* BLBS */
- gen_bcond(ctx, TCG_COND_NE, ra, disp21, 1);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_NE, ra, disp21, 1);
break;
case 0x3D:
/* BNE */
- gen_bcond(ctx, TCG_COND_NE, ra, disp21, 0);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_NE, ra, disp21, 0);
break;
case 0x3E:
/* BGE */
- gen_bcond(ctx, TCG_COND_GE, ra, disp21, 0);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_GE, ra, disp21, 0);
break;
case 0x3F:
/* BGT */
- gen_bcond(ctx, TCG_COND_GT, ra, disp21, 0);
- ret = 1;
+ ret = gen_bcond(ctx, TCG_COND_GT, ra, disp21, 0);
break;
invalid_opc:
- gen_invalid(ctx);
- ret = 3;
+ ret = gen_invalid(ctx);
break;
}
return ret;
}
-static always_inline void gen_intermediate_code_internal (CPUState *env,
- TranslationBlock *tb,
- int search_pc)
+static inline void gen_intermediate_code_internal(CPUState *env,
+ TranslationBlock *tb,
+ int search_pc)
{
-#if defined ALPHA_DEBUG_DISAS
- static int insn_count;
-#endif
DisasContext ctx, *ctxp = &ctx;
target_ulong pc_start;
uint32_t insn;
uint16_t *gen_opc_end;
CPUBreakpoint *bp;
int j, lj = -1;
- int ret;
+ ExitStatus ret;
int num_insns;
int max_insns;
pc_start = tb->pc;
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
+
+ ctx.tb = tb;
+ ctx.env = env;
ctx.pc = pc_start;
ctx.amask = env->amask;
- ctx.env = env;
#if defined (CONFIG_USER_ONLY)
ctx.mem_idx = 0;
#else
ctx.mem_idx = ((env->ps >> 3) & 3);
ctx.pal_mode = env->ipr[IPR_EXC_ADDR] & 1;
#endif
+
+ /* ??? Every TB begins with unset rounding mode, to be initialized on
+ the first fp insn of the TB. Alternately we could define a proper
+ default for every TB (e.g. QUAL_RM_N or QUAL_RM_D) and make sure
+ to reset the FP_STATUS to that default at the end of any TB that
+ changes the default. We could even (gasp) dynamiclly figure out
+ what default would be most efficient given the running program. */
+ ctx.tb_rm = -1;
+ /* Similarly for flush-to-zero. */
+ ctx.tb_ftz = -1;
+
num_insns = 0;
max_insns = tb->cflags & CF_COUNT_MASK;
if (max_insns == 0)
max_insns = CF_COUNT_MASK;
gen_icount_start();
- for (ret = 0; ret == 0;) {
- if (unlikely(!TAILQ_EMPTY(&env->breakpoints))) {
- TAILQ_FOREACH(bp, &env->breakpoints, entry) {
+ do {
+ if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
+ QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
if (bp->pc == ctx.pc) {
gen_excp(&ctx, EXCP_DEBUG, 0);
break;
}
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
gen_io_start();
-#if defined ALPHA_DEBUG_DISAS
- insn_count++;
- LOG_DISAS("pc " TARGET_FMT_lx " mem_idx %d\n",
- ctx.pc, ctx.mem_idx);
-#endif
insn = ldl_code(ctx.pc);
-#if defined ALPHA_DEBUG_DISAS
- insn_count++;
- LOG_DISAS("opcode %08x %d\n", insn, insn_count);
-#endif
num_insns++;
- ctx.pc += 4;
- ret = translate_one(ctxp, insn);
- if (ret != 0)
- break;
- /* if we reach a page boundary or are single stepping, stop
- * generation
- */
- if (env->singlestep_enabled) {
- gen_excp(&ctx, EXCP_DEBUG, 0);
- break;
- }
-
- if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0)
- break;
- if (gen_opc_ptr >= gen_opc_end)
- break;
+ if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) {
+ tcg_gen_debug_insn_start(ctx.pc);
+ }
- if (num_insns >= max_insns)
- break;
+ ctx.pc += 4;
+ ret = translate_one(ctxp, insn);
- if (singlestep) {
- break;
+ if (ret == NO_EXIT) {
+ /* If we reach a page boundary, are single stepping,
+ or exhaust instruction count, stop generation. */
+ if (env->singlestep_enabled) {
+ gen_excp(&ctx, EXCP_DEBUG, 0);
+ ret = EXIT_PC_UPDATED;
+ } else if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0
+ || gen_opc_ptr >= gen_opc_end
+ || num_insns >= max_insns
+ || singlestep) {
+ ret = EXIT_PC_STALE;
+ }
}
+ } while (ret == NO_EXIT);
+
+ if (tb->cflags & CF_LAST_IO) {
+ gen_io_end();
}
- if (ret != 1 && ret != 3) {
+
+ switch (ret) {
+ case EXIT_GOTO_TB:
+ case EXIT_NORETURN:
+ break;
+ case EXIT_PC_STALE:
tcg_gen_movi_i64(cpu_pc, ctx.pc);
+ /* FALLTHRU */
+ case EXIT_PC_UPDATED:
+ tcg_gen_exit_tb(0);
+ break;
+ default:
+ abort();
}
-#if defined (DO_TB_FLUSH)
- gen_helper_tb_flush();
-#endif
- if (tb->cflags & CF_LAST_IO)
- gen_io_end();
- /* Generate the return instruction */
- tcg_gen_exit_tb(0);
+
gen_icount_end(tb, num_insns);
*gen_opc_ptr = INDEX_op_end;
if (search_pc) {
tb->size = ctx.pc - pc_start;
tb->icount = num_insns;
}
-#if defined ALPHA_DEBUG_DISAS
- log_cpu_state_mask(CPU_LOG_TB_CPU, env, 0);
+
+#ifdef DEBUG_DISAS
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
qemu_log("IN: %s\n", lookup_symbol(pc_start));
log_target_disas(pc_start, ctx.pc - pc_start, 1);
gen_intermediate_code_internal(env, tb, 1);
}
+struct cpu_def_t {
+ const char *name;
+ int implver, amask;
+};
+
+static const struct cpu_def_t cpu_defs[] = {
+ { "ev4", IMPLVER_2106x, 0 },
+ { "ev5", IMPLVER_21164, 0 },
+ { "ev56", IMPLVER_21164, AMASK_BWX },
+ { "pca56", IMPLVER_21164, AMASK_BWX | AMASK_MVI },
+ { "ev6", IMPLVER_21264, AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP },
+ { "ev67", IMPLVER_21264, (AMASK_BWX | AMASK_FIX | AMASK_CIX
+ | AMASK_MVI | AMASK_TRAP | AMASK_PREFETCH), },
+ { "ev68", IMPLVER_21264, (AMASK_BWX | AMASK_FIX | AMASK_CIX
+ | AMASK_MVI | AMASK_TRAP | AMASK_PREFETCH), },
+ { "21064", IMPLVER_2106x, 0 },
+ { "21164", IMPLVER_21164, 0 },
+ { "21164a", IMPLVER_21164, AMASK_BWX },
+ { "21164pc", IMPLVER_21164, AMASK_BWX | AMASK_MVI },
+ { "21264", IMPLVER_21264, AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP },
+ { "21264a", IMPLVER_21264, (AMASK_BWX | AMASK_FIX | AMASK_CIX
+ | AMASK_MVI | AMASK_TRAP | AMASK_PREFETCH), }
+};
+
CPUAlphaState * cpu_alpha_init (const char *cpu_model)
{
CPUAlphaState *env;
- uint64_t hwpcb;
+ int implver, amask, i, max;
env = qemu_mallocz(sizeof(CPUAlphaState));
cpu_exec_init(env);
alpha_translate_init();
tlb_flush(env, 1);
- /* XXX: should not be hardcoded */
- env->implver = IMPLVER_2106x;
+
+ /* Default to ev67; no reason not to emulate insns by default. */
+ implver = IMPLVER_21264;
+ amask = (AMASK_BWX | AMASK_FIX | AMASK_CIX | AMASK_MVI
+ | AMASK_TRAP | AMASK_PREFETCH);
+
+ max = ARRAY_SIZE(cpu_defs);
+ for (i = 0; i < max; i++) {
+ if (strcmp (cpu_model, cpu_defs[i].name) == 0) {
+ implver = cpu_defs[i].implver;
+ amask = cpu_defs[i].amask;
+ break;
+ }
+ }
+ env->implver = implver;
+ env->amask = amask;
+
env->ps = 0x1F00;
#if defined (CONFIG_USER_ONLY)
env->ps |= 1 << 3;
-#endif
+ cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
+ | FPCR_UNFD | FPCR_INED | FPCR_DNOD));
+#else
pal_init(env);
+#endif
+ env->lock_addr = -1;
+
/* Initialize IPR */
- hwpcb = env->ipr[IPR_PCBB];
- env->ipr[IPR_ASN] = 0;
- env->ipr[IPR_ASTEN] = 0;
- env->ipr[IPR_ASTSR] = 0;
- env->ipr[IPR_DATFX] = 0;
- /* XXX: fix this */
- // env->ipr[IPR_ESP] = ldq_raw(hwpcb + 8);
- // env->ipr[IPR_KSP] = ldq_raw(hwpcb + 0);
- // env->ipr[IPR_SSP] = ldq_raw(hwpcb + 16);
- // env->ipr[IPR_USP] = ldq_raw(hwpcb + 24);
- env->ipr[IPR_FEN] = 0;
- env->ipr[IPR_IPL] = 31;
- env->ipr[IPR_MCES] = 0;
- env->ipr[IPR_PERFMON] = 0; /* Implementation specific */
- // env->ipr[IPR_PTBR] = ldq_raw(hwpcb + 32);
- env->ipr[IPR_SISR] = 0;
- env->ipr[IPR_VIRBND] = -1ULL;
+#if defined (CONFIG_USER_ONLY)
+ env->ipr[IPR_EXC_ADDR] = 0;
+ env->ipr[IPR_EXC_SUM] = 0;
+ env->ipr[IPR_EXC_MASK] = 0;
+#else
+ {
+ // uint64_t hwpcb;
+ // hwpcb = env->ipr[IPR_PCBB];
+ env->ipr[IPR_ASN] = 0;
+ env->ipr[IPR_ASTEN] = 0;
+ env->ipr[IPR_ASTSR] = 0;
+ env->ipr[IPR_DATFX] = 0;
+ /* XXX: fix this */
+ // env->ipr[IPR_ESP] = ldq_raw(hwpcb + 8);
+ // env->ipr[IPR_KSP] = ldq_raw(hwpcb + 0);
+ // env->ipr[IPR_SSP] = ldq_raw(hwpcb + 16);
+ // env->ipr[IPR_USP] = ldq_raw(hwpcb + 24);
+ env->ipr[IPR_FEN] = 0;
+ env->ipr[IPR_IPL] = 31;
+ env->ipr[IPR_MCES] = 0;
+ env->ipr[IPR_PERFMON] = 0; /* Implementation specific */
+ // env->ipr[IPR_PTBR] = ldq_raw(hwpcb + 32);
+ env->ipr[IPR_SISR] = 0;
+ env->ipr[IPR_VIRBND] = -1ULL;
+ }
+#endif
+ qemu_init_vcpu(env);
return env;
}
projects / qemu.git / blobdiff