From: H. Peter Anvin <hpa@zytor.com>
Date: Tue, 20 May 2008 04:07:08 +0000 (-0700)
Subject: Bytecode compiler: add support for is4/imz2 operands
X-Git-Tag: nasm-2.11.05~1614
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7a4928f484b9c2f1676349c421215cbb8766e030;p=platform%2Fupstream%2Fnasm.git

Bytecode compiler: add support for is4/imz2 operands
---

diff --git a/insns.pl b/insns.pl
index 4f92503..0b5e1a3 100644
--- a/insns.pl
+++ b/insns.pl
@@ -673,6 +673,19 @@ sub byte_code_compile($) {
 		push(@codes, 0250+$oppos{'i'});
 	    }
 	    $prefix_ok = 0;
+	} elsif ($op eq 'is4' || $op eq 'imz2') {
+	    if (!defined($oppos{'i'} || !defined($oppos{'s'}))) {
+		die "$0: $line: $op without 'i' and 's' operands\n";
+	    }
+	    push(@codes, 0172, ($oppos{'s'} << 3)+$oppos{'i'});
+	} elsif ($op =~ /^is4=([0-9]+)$/) {
+	    if (!defined($oppos{'s'})) {
+		die "$0: $line: $op without 's' operand\n";
+	    }
+	    if ($1 < 0 || $1 > 15) {
+		die "$0: $line: invalid imm4 value for $op\n";
+	    }
+	    push(@codes, 0173, ($oppos{'s'} << 4) + $1);
 	} elsif ($op =~ /^([0-9a-f]{2})\+s$/) {
 	    if (!defined($oppos{'i'})) {
 		die "$0: $op without 'i' operand\n";