[Qemu-devel] [PATCH 4/6] target/s390x: add EX support for TRT and TRTR

[Pavel Zbitskiy]

Improves "b213c9f5: target/s390x: Implement TRTR" by introducing the
intermediate functions, which are compatible with dx_helper type.

Signed-off-by: Pavel Zbitskiy <address@hidden>
---
 target/s390x/mem_helper.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index c94dbf3fcb..704d0193b5 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -1299,12 +1299,26 @@ static inline uint32_t do_helper_trt(CPUS390XState 
*env, int len,
     return 0;
 }
 
+static uint32_t do_helper_trt_fwd(CPUS390XState *env, uint32_t len,
+                                  uint64_t array, uint64_t trans,
+                                  uintptr_t ra)
+{
+    return do_helper_trt(env, len, array, trans, 1, ra);
+}
+
 uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len, uint64_t array,
                      uint64_t trans)
 {
     return do_helper_trt(env, len, array, trans, 1, GETPC());
 }
 
+static uint32_t do_helper_trt_bkwd(CPUS390XState *env, uint32_t len,
+                                   uint64_t array, uint64_t trans,
+                                   uintptr_t ra)
+{
+    return do_helper_trt(env, len, array, trans, -1, ra);
+}
+
 uint32_t HELPER(trtr)(CPUS390XState *env, uint32_t len, uint64_t array,
                       uint64_t trans)
 {
@@ -2193,12 +2207,14 @@ void HELPER(ex)(CPUS390XState *env, uint32_t ilen, 
uint64_t r1, uint64_t addr)
         typedef uint32_t (*dx_helper)(CPUS390XState *, uint32_t, uint64_t,
                                       uint64_t, uintptr_t);
         static const dx_helper dx[16] = {
+            [0x0] = do_helper_trt_bkwd,
             [0x2] = do_helper_mvc,
             [0x4] = do_helper_nc,
             [0x5] = do_helper_clc,
             [0x6] = do_helper_oc,
             [0x7] = do_helper_xc,
             [0xc] = do_helper_tr,
+            [0xd] = do_helper_trt_fwd,
         };
         dx_helper helper = dx[opc & 0xf];
 
-- 
2.16.2.windows.1