target-i386: Rewrite gen_enter inline

Use gen_lea_v_seg for centralized segment base knowledge.  Unify
code across 32- and 64-bit.  Fix note about "must save state"
before using the out-of-line helpers.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-8-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 74 deletions

diff --git a/target-i386/seg_helper.c b/target-i386/seg_helper.c
index 4f269416a5..b5f3d72fe3 100644
--- a/target-i386/seg_helper.c
+++ b/target-i386/seg_helper.c
@@ -1379,80 +1379,6 @@ bool x86_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
     return ret;
 }
 
-void helper_enter_level(CPUX86State *env, int level, int data32,
-                        target_ulong t1)
-{
-    target_ulong ssp;
-    uint32_t esp_mask, esp, ebp;
-
-    esp_mask = get_sp_mask(env->segs[R_SS].flags);
-    ssp = env->segs[R_SS].base;
-    ebp = env->regs[R_EBP];
-    esp = env->regs[R_ESP];
-    if (data32) {
-        /* 32 bit */
-        esp -= 4;
-        while (--level) {
-            esp -= 4;
-            ebp -= 4;
-            cpu_stl_data_ra(env, ssp + (esp & esp_mask),
-                            cpu_ldl_data_ra(env, ssp + (ebp & esp_mask),
-                                            GETPC()),
-                            GETPC());
-        }
-        esp -= 4;
-        cpu_stl_data_ra(env, ssp + (esp & esp_mask), t1, GETPC());
-    } else {
-        /* 16 bit */
-        esp -= 2;
-        while (--level) {
-            esp -= 2;
-            ebp -= 2;
-            cpu_stw_data_ra(env, ssp + (esp & esp_mask),
-                            cpu_lduw_data_ra(env, ssp + (ebp & esp_mask),
-                                             GETPC()),
-                            GETPC());
-        }
-        esp -= 2;
-        cpu_stw_data_ra(env, ssp + (esp & esp_mask), t1, GETPC());
-    }
-}
-
-#ifdef TARGET_X86_64
-void helper_enter64_level(CPUX86State *env, int level, int data64,
-                          target_ulong t1)
-{
-    target_ulong esp, ebp;
-
-    ebp = env->regs[R_EBP];
-    esp = env->regs[R_ESP];
-
-    if (data64) {
-        /* 64 bit */
-        esp -= 8;
-        while (--level) {
-            esp -= 8;
-            ebp -= 8;
-            cpu_stq_data_ra(env, esp, cpu_ldq_data_ra(env, ebp, GETPC()),
-                            GETPC());
-        }
-        esp -= 8;
-        cpu_stq_data_ra(env, esp, t1, GETPC());
-    } else {
-        /* 16 bit */
-        esp -= 2;
-        while (--level) {
-            esp -= 2;
-            ebp -= 2;
-            cpu_stw_data_ra(env, esp, cpu_lduw_data_ra(env, ebp, GETPC()),
-                            GETPC());
-        }
-        esp -= 2;
-        cpu_stw_data_ra(env, esp, t1, GETPC());
-    }
-}
-#endif
-
 void helper_lldt(CPUX86State *env, int selector)
 {
     SegmentCache *dt;