Perlito5::X64::Assembler - more internal functions

Author: fglock

src5/lib/Perlito5/X64/Assembler.pm

@@ -21,10 +21,36 @@ sub emit {
     push @buffer, $_[0];
 }
 
+
+sub is_zero { 
+    return $_[0] == 0;
+}
+
+sub is_int8 {
+    return -128 <= $_[0] && $_[0] < 128;
+}
+
+sub is_int16 {
+    return -32768 <= $_[0] && $_[0] < 32768;
+}
+
+sub is_uint8 {
+    return 0 <= $_[0] && $_[0] < 256;
+}
+
+sub is_uint16 {
+    return 0 <= $_[0] && $_[0] < 65536;
+}
+
+
 #---
 
+sub nop {
+    emit(0x90);
+}
+
 sub ret {
-    my ( $self, $imm16 ) = @_;
+    my ( $imm16 ) = @_;
     if ( !$imm16 ) {
         emit(0xC3);
     }

t5-x64/01_sanity.t

@@ -12,17 +12,19 @@ use warnings;
 use feature 'say';
 use Perlito5::X64::Assembler;
 
-say "1..1";
-
-my $asm = Perlito5::X64::Assembler->new();
+say "1..2";
 
 {
     package Perlito5::X64::Assembler;
+    my $out;
 
     ret();
-    my $out = to_hex();
-
-    print "not " if $out ne 'C3';
-    say "ok # $out";
+        $out = to_hex();
+        print "not " if $out ne 'C3';
+        say "ok # $out";
+    ret(10);
+        $out = to_hex();
+        print "not " if $out ne 'C3 C2 0A 00';
+        say "ok # $out";
 }