diff mbox

[v1,2/9] target-ppc: implement lxvll instruction

Message ID 1481135102-20011-3-git-send-email-nikunj@linux.vnet.ibm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Nikunj A. Dadhania Dec. 7, 2016, 6:24 p.m. UTC 
lxvll: Load VSX Vector Left-justified with Length

Little/Big-endian Storage:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|FF|FF|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+

Loading 14 bytes to vector (8-bit elements) in BE/LE:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|00|00|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 target-ppc/helper.h                 |  1 +
 target-ppc/mem_helper.c             | 18 ++++++++++++++++++
 target-ppc/translate/vsx-impl.inc.c |  1 +
 target-ppc/translate/vsx-ops.inc.c  |  1 +
 4 files changed, 21 insertions(+)
diff mbox

Patch

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index d9ccafd..67c8b71 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -318,6 +318,7 @@  DEF_HELPER_3(stvebx, void, env, avr, tl)
 DEF_HELPER_3(stvehx, void, env, avr, tl)
 DEF_HELPER_3(stvewx, void, env, avr, tl)
 DEF_HELPER_4(lxvl, void, env, tl, tl, tl)
+DEF_HELPER_4(lxvll, void, env, tl, tl, tl)
 DEF_HELPER_4(vsumsws, void, env, avr, avr, avr)
 DEF_HELPER_4(vsum2sws, void, env, avr, avr, avr)
 DEF_HELPER_4(vsum4sbs, void, env, avr, avr, avr)
diff --git a/target-ppc/mem_helper.c b/target-ppc/mem_helper.c
index 54447a7..08fd90d 100644
--- a/target-ppc/mem_helper.c
+++ b/target-ppc/mem_helper.c
@@ -316,6 +316,24 @@  void helper_lxvl(CPUPPCState *env, target_ulong addr,
     putVSR(xt_num, &xt, env);
 }
 
+void helper_lxvll(CPUPPCState *env, target_ulong addr,
+                  target_ulong xt_num, target_ulong rb)
+{
+    int i;
+    ppc_vsr_t xt;
+    uint64_t nb = GET_NB(rb);
+
+    xt.s128 = int128_zero();
+    if (nb) {
+        nb = (nb >= 16) ? 16 : nb;
+        for (i = 0; i < nb; i++) {
+            xt.VsrB(i) = cpu_ldub_data_ra(env, addr, GETPC());
+            addr = addr_add(env, addr, 1);
+        }
+    }
+    putVSR(xt_num, &xt, env);
+}
+
 #undef HI_IDX
 #undef LO_IDX
 #undef GET_NB
diff --git a/target-ppc/translate/vsx-impl.inc.c b/target-ppc/translate/vsx-impl.inc.c
index 6bd70a0..ee884cf 100644
--- a/target-ppc/translate/vsx-impl.inc.c
+++ b/target-ppc/translate/vsx-impl.inc.c
@@ -266,6 +266,7 @@  static void gen_##name(DisasContext *ctx)                       \
 }
 
 VSX_VECTOR_LOAD_STORE_LENGTH(lxvl)
+VSX_VECTOR_LOAD_STORE_LENGTH(lxvll)
 
 #define VSX_LOAD_SCALAR_DS(name, operation)                       \
 static void gen_##name(DisasContext *ctx)                         \
diff --git a/target-ppc/translate/vsx-ops.inc.c b/target-ppc/translate/vsx-ops.inc.c
index 4940ab2..88f46d9 100644
--- a/target-ppc/translate/vsx-ops.inc.c
+++ b/target-ppc/translate/vsx-ops.inc.c
@@ -11,6 +11,7 @@  GEN_HANDLER_E(lxvh8x, 0x1F, 0x0C, 0x19, 0, PPC_NONE,  PPC2_ISA300),
 GEN_HANDLER_E(lxvb16x, 0x1F, 0x0C, 0x1B, 0, PPC_NONE, PPC2_ISA300),
 GEN_HANDLER_E(lxvx, 0x1F, 0x0C, 0x08, 0x00000040, PPC_NONE, PPC2_ISA300),
 GEN_HANDLER_E(lxvl, 0x1F, 0x0D, 0x08, 0, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E(lxvll, 0x1F, 0x0D, 0x09, 0, PPC_NONE, PPC2_ISA300),
 
 GEN_HANDLER_E(stxsdx, 0x1F, 0xC, 0x16, 0, PPC_NONE, PPC2_VSX),
 GEN_HANDLER_E(stxsibx, 0x1F, 0xD, 0x1C, 0, PPC_NONE, PPC2_ISA300),