From f41af9429d721a6210b7383016ce1e01a9a75d96 Mon Sep 17 00:00:00 2001
From: Pierre Pronchery <khorben@defora.org>
Date: Tue, 19 Apr 2011 20:02:44 +0000
Subject: [PATCH] Added the "fcom", "fcomp", "fcompp", "fcos" and "fdecstp"
 instructions

---
 src/arch/i386.ins | 30 ++++++++++++++++++++++++++++++
 test/i386.S       | 21 +++++++++++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/src/arch/i386.ins b/src/arch/i386.ins
index c709896..c6c45fb 100644
--- a/src/arch/i386.ins
+++ b/src/arch/i386.ins
@@ -415,6 +415,36 @@
 { "fclex",	0x9bdbe2,	OP3F, AOT_NONE,   AOT_NONE,  AOT_NONE	},
 /* FCMOVcc								*/
 /* FIXME implement */
+/* FCOM									*/
+/* FIXME implement */
+/* FCOM		0xd8d1		2					*/
+{ "fcom",	0xd8d1,		OP2F, AOT_NONE,   AOT_NONE,  AOT_NONE	},
+/* FCOM		0xd8d0 +i	2     st(i)				*/
+{ "fcom",	0xd8d0,		OP2F, OP_st0,     AOT_NONE,  AOT_NONE	},
+{ "fcom",	0xd8d1,		OP2F, OP_st1,     AOT_NONE,  AOT_NONE	},
+{ "fcom",	0xd8d2,		OP2F, OP_st2,     AOT_NONE,  AOT_NONE	},
+{ "fcom",	0xd8d3,		OP2F, OP_st3,     AOT_NONE,  AOT_NONE	},
+{ "fcom",	0xd8d4,		OP2F, OP_st4,     AOT_NONE,  AOT_NONE	},
+{ "fcom",	0xd8d5,		OP2F, OP_st5,     AOT_NONE,  AOT_NONE	},
+{ "fcom",	0xd8d6,		OP2F, OP_st6,     AOT_NONE,  AOT_NONE	},
+{ "fcom",	0xd8d7,		OP2F, OP_st7,     AOT_NONE,  AOT_NONE	},
+/* FCOMP	0xd8d9		2					*/
+{ "fcomp",	0xd8d9,		OP2F, AOT_NONE,   AOT_NONE,  AOT_NONE	},
+/* FCOMP	0xd8d8 +i	2     st(i)				*/
+{ "fcomp",	0xd8d8,		OP2F, OP_st0,     AOT_NONE,  AOT_NONE	},
+{ "fcomp",	0xd8d9,		OP2F, OP_st1,     AOT_NONE,  AOT_NONE	},
+{ "fcomp",	0xd8da,		OP2F, OP_st2,     AOT_NONE,  AOT_NONE	},
+{ "fcomp",	0xd8db,		OP2F, OP_st3,     AOT_NONE,  AOT_NONE	},
+{ "fcomp",	0xd8dc,		OP2F, OP_st4,     AOT_NONE,  AOT_NONE	},
+{ "fcomp",	0xd8dd,		OP2F, OP_st5,     AOT_NONE,  AOT_NONE	},
+{ "fcomp",	0xd8de,		OP2F, OP_st6,     AOT_NONE,  AOT_NONE	},
+{ "fcomp",	0xd8df,		OP2F, OP_st7,     AOT_NONE,  AOT_NONE	},
+/* FCOMPP	0xded9		2					*/
+{ "fcompp",	0xded9,		OP2F, AOT_NONE,   AOT_NONE,  AOT_NONE	},
+/* FCOS		0xd9ff		2					*/
+{ "fcos",	0xd9ff,		OP2F, AOT_NONE,   AOT_NONE,  AOT_NONE	},
+/* FDECSTP	0xd9f6		2					*/
+{ "fdecstp",	0xd9f6,		OP2F, AOT_NONE,   AOT_NONE,  AOT_NONE	},
 /* FDIV	0xd8 /6			1     m32real				*/
 /* FIXME implement */
 /* FDIV	0xdc /6			1     m64real				*/
diff --git a/test/i386.S b/test/i386.S
index 178d7cc..0beb264 100644
--- a/test/i386.S
+++ b/test/i386.S
@@ -142,6 +142,27 @@
 	faddp	%st7, %st0
 	fchs
 	fclex
+	fcom					/* de d9		*/
+	fcom	%st0
+	fcom	%st1
+	fcom	%st2
+	fcom	%st3
+	fcom	%st4
+	fcom	%st5
+	fcom	%st6
+	fcom	%st7
+	fcomp					/* de d9		*/
+	fcomp	%st0
+	fcomp	%st1
+	fcomp	%st2
+	fcomp	%st3
+	fcomp	%st4
+	fcomp	%st5
+	fcomp	%st6
+	fcomp	%st7
+	fcompp					/* de d9		*/
+	fcos
+	fdecstp
 	fdiv	%st0, %st0
 	fdiv	%st0, %st1
 	fdiv	%st0, %st2