* src/mcs51/gen.c (aopPut): use direct name for pushing registers

[fw/sdcc] / src / mcs51 / gen.c

diff --git a/src/mcs51/gen.c b/src/mcs51/gen.c
index a2841f70701081452a7f27e7ba5da925a466433a..8ad42509cd77e7129640bef62df50e0e93b1a52c 100644 (file)
--- a/src/mcs51/gen.c
+++ b/src/mcs51/gen.c
@@ -1642,12 +1642,29 @@ aopPut (operand * result, const char *s, int offset)
 
     case AOP_STK:
       if (strcmp (s, "a") == 0)
-        emitcode ("push", "acc");
-      else
-        if (*s=='@') {
+        {
+          emitcode ("push", "acc");
+        }
+      else if (*s=='@')
+        {
           MOVA(s);
           emitcode ("push", "acc");
-        } else {
+        }
+      else if (strcmp (s, "r0") == 0 ||
+               strcmp (s, "r1") == 0 ||
+               strcmp (s, "r2") == 0 ||
+               strcmp (s, "r3") == 0 ||
+               strcmp (s, "r4") == 0 ||
+               strcmp (s, "r5") == 0 ||
+               strcmp (s, "r6") == 0 ||
+               strcmp (s, "r7") == 0)
+        {
+          char buffer[10];
+          SNPRINTF (buffer, sizeof(buffer), "a%s", s);
+          emitcode ("push", buffer);
+        }
+      else
+        {
           emitcode ("push", s);
         }