[31/67] target/arm: Convert SVC

Message ID 20190726175032.6769-32-richard.henderson@linaro.org
State Superseded
Headers show
Series
  • target/arm: Convert aa32 base isa to decodetree
Related show

Commit Message

Richard Henderson July 26, 2019, 5:49 p.m.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 target/arm/translate.c | 19 +++++++++++++------
 target/arm/a32.decode  |  4 ++++
 2 files changed, 17 insertions(+), 6 deletions(-)

-- 
2.17.1

Patch

diff --git a/target/arm/translate.c b/target/arm/translate.c
index 3f14e5c7f3..7ea118a795 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -9979,6 +9979,18 @@  static bool trans_BLX_i(DisasContext *s, arg_BLX_i *a)
     return true;
 }
 
+/*
+ * Supervisor call
+ */
+
+static bool trans_SVC(DisasContext *s, arg_SVC *a)
+{
+    gen_set_pc_im(s, s->pc);
+    s->svc_imm = a->imm;
+    s->base.is_jmp = DISAS_SWI;
+    return true;
+}
+
 /*
  * Legacy decoder.
  */
@@ -10243,6 +10255,7 @@  static void disas_arm_insn(DisasContext *s, unsigned int insn)
         case 0x09:
         case 0xa:
         case 0xb:
+        case 0xf:
             /* All done in decodetree.  Reach here for illegal ops.  */
             goto illegal_op;
         case 0xc:
@@ -10258,12 +10271,6 @@  static void disas_arm_insn(DisasContext *s, unsigned int insn)
                 goto illegal_op;
             }
             break;
-        case 0xf:
-            /* swi */
-            gen_set_pc_im(s, s->pc);
-            s->svc_imm = extract32(insn, 0, 24);
-            s->base.is_jmp = DISAS_SWI;
-            break;
         default:
         illegal_op:
             gen_illegal_op(s);
diff --git a/target/arm/a32.decode b/target/arm/a32.decode
index f0f0f50c4e..c2fb28f235 100644
--- a/target/arm/a32.decode
+++ b/target/arm/a32.decode
@@ -528,3 +528,7 @@  LDM              ---- 100 b:1 i:1 u:1 w:1 1 rn:4 list:16   &ldst_block
 
 B                .... 1010 ........................           @branch
 BL               .... 1011 ........................           @branch
+
+# Supervisor call
+
+SVC              ---- 1111 imm:24                             &i