From: Ian Lance Taylor <ian@airs.com>
Date: Fri, 20 Sep 1996 19:49:49 +0000 (+0000)
Subject: 	* gencode.c (process_instructions): Call build_endian_shift when
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=149ee67274766a0a56a671ec2c35b556b5fdb4ae;p=binutils-gdb.git

	* gencode.c (process_instructions): Call build_endian_shift when
	expanding STORE RIGHT, to fix swr.
	* support.h (SIGNEXTEND): If the sign bit is not set, explicitly
	clear the high bits.
	* interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
	Fix float to int conversions to produce signed values.
---

diff --git a/sim/mips/gencode.c b/sim/mips/gencode.c
index ff27ef6b531..dce648ae93e 100644
--- a/sim/mips/gencode.c
+++ b/sim/mips/gencode.c
@@ -1530,6 +1530,7 @@ process_instructions(doarch,features)
                       printf("     GPR[destreg] = SIGNEXTEND(GPR[destreg],32);\n");
                    } else { /* store */
                      printf("     memval = (op2 << (byte * 8));\n");
+		     build_endian_shift(proc64,datalen,2,s_left,32);
                      printf("     StoreMemory(uncached,(%s - byte),memval,paddr,vaddr,isREAL);\n",accesslength);
                    }
                  }
diff --git a/sim/mips/support.h b/sim/mips/support.h
index b9bf0dd8f55..11f285c3724 100644
--- a/sim/mips/support.h
+++ b/sim/mips/support.h
@@ -48,7 +48,10 @@ typedef unsigned long long uword64;
 /* Sign-extend the given value (e) as a value (b) bits long. We cannot
    assume the HI32bits of the operand are zero, so we must perform a
    mask to ensure we can use the simple subtraction to sign-extend. */
-#define SIGNEXTEND(e,b) (((e) & ((uword64)1 << ((b) - 1))) ? (((e) & (((uword64)1 << (b)) - 1)) - ((uword64)1 << (b))) : (e))
+#define SIGNEXTEND(e,b) \
+  (((e) & ((uword64) 1 << ((b) - 1))) \
+   ? (((e) & (((uword64) 1 << (b)) - 1)) - ((uword64)1 << (b))) \
+   : ((e) & (((((uword64) 1 << ((b) - 1)) - 1) << 1) | 1)))
 
 /* Check if a value will fit within a word (unsigned int): */
 #define NOTWORDVALUE(v) ((((((uword64)(v)>>32) == 0) && !((v) & ((unsigned)1 << 31))) || ((((uword64)(v)>>32) == 0xFFFFFFFF) && ((v) & ((unsigned)1 << 31)))) ? (1 == 0) : (1 == 1))