Fix the handling of `.half' assembler directives.

	* src/inst/program_builder.hxx (inst::ProgramBuilder::add_half):
	Use bitwise ``and'' operators instead of logical ``and''
	operators.
	This mistake was reported by clang++ 3.0.
	* tests/good/print-half.s,
	* tests/good/print-half.ref:
	New test.
	* tests/good/Makefile.am (ASM_FILES): Add print_half.s.

ChangeLog

+2012-05-22  Roland Levillain  <roland@lrde.epita.fr>
+
+	Fix the handling of `.half' assembler directives.
+
+	* src/inst/program_builder.hxx (inst::ProgramBuilder::add_half):
+	Use bitwise ``and'' operators instead of logical ``and''
+	operators.
+	This mistake was reported by clang++ 3.0.
+	* tests/good/print-half.s,
+	* tests/good/print-half.ref:
+	New test.
+	* tests/good/Makefile.am (ASM_FILES): Add print_half.s.
+
 2012-05-22  Roland Levillain  <roland@lrde.epita.fr>
 
 	Fix the comparison of produced and expected tests outputs.

src/inst/program_builder.hxx

@@ -89,8 +89,8 @@ namespace inst
   ProgramBuilder::add_half(int imm)
   {
     // FIXME: check that imm is less than 0x10000!
-    add_byte((imm >> 8) && 0xff);
-    add_byte(imm && 0xff);
+    add_byte((imm >> 8) & 0xff);
+    add_byte(imm & 0xff);
   }
 
   inline void

tests/good/Makefile.am

@@ -13,7 +13,8 @@ ASM_FILES =					\
 	fact.s					\
 	gtcd.s					\
 	extended-euclide.s			\
-	modular-exponent.s
+	modular-exponent.s			\
+	print-half.s
 INPUT_FILES =					\
 	read_int.in
 

tests/good/print-half.ref

+134088703

tests/good/print-half.s

+### Test the `.half' directive.
+	.data
+val:
+	.half 2046
+	.half 2047
+eol:
+	.asciiz "\n"
+
+	.text
+main:
+	# print_int(val)
+	lw	$a0, val($zero)
+	li	$v0, 1
+	syscall
+	# print("\n")
+	la	$a0, eol
+	li	$v0, 4
+	syscall
+	# exit(0)
+	li	$a0, 0
+	li	$v0, 10
+	syscall