From fae1aedeb577d7f7d21b73633ea02f645efc83aa Mon Sep 17 00:00:00 2001
From: xolatile <xolatile@proton.me>
Date: Wed, 24 Jul 2024 07:47:32 -0400
Subject: [PATCH] Added 49 new instructions...

---
 source/assembler.c | 10 ++++++----
 source/assembler.h | 49 ++++++++++++++++++++++++++++++++++++++++++++++
 tool/xfat.c        |  2 --
 3 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/source/assembler.c b/source/assembler.c
index 571bde5..f4429f4 100644
--- a/source/assembler.c
+++ b/source/assembler.c
@@ -7,9 +7,9 @@
 #define IRREGULAR_BEGIN (INC)
 #define IRREGULAR_END   (IDIV)
 #define SPECIAL_1_BEGIN (NOP)
-#define SPECIAL_1_END   (WAIT)
+#define SPECIAL_1_END   (STOSD)
 #define SPECIAL_2_BEGIN (SYSENTER)
-#define SPECIAL_2_END   (FCOS)
+#define SPECIAL_2_END   (XLATB)
 #define JUMP_IF_BEGIN   (JO)
 #define JUMP_IF_END     (JG)
 #define MOVE_IF_BEGIN   (CMOVO)
@@ -160,7 +160,8 @@ static void build_irregular (unsigned int operation, unsigned int size, unsigned
 
 static void build_special_1 (unsigned int operation) {
 	const unsigned char data  [] = {
-		0x90, 0xc3, 0xcb, 0xc9, 0xf0, 0xf4, 0x9d, 0x9c, 0x9b
+		0x90, 0xc3, 0xcb, 0xc9, 0xf0, 0xf4, 0x9d, 0x9c, 0x9b, 0xf8, 0xfc, 0xfa, 0xf9, 0xfd, 0xfb, 0xf5, 0x6c, 0x6d, 0x6e, 0x6f, 0x99, 0x98, 0xec, 0xed, 0xcc, 0xcf, 0xac,
+		0xad, 0xee, 0xef, 0xae, 0xaf, 0xaa, 0xab
 	};
 
 	input (1, data [operation - SPECIAL_1_BEGIN]);
@@ -169,7 +170,8 @@ static void build_special_1 (unsigned int operation) {
 static void build_special_2 (unsigned int operation) {
 	const unsigned short data  [] = {
 		0x340f, 0x350f, 0x050f, 0x070f, 0x90f3, 0xa20f, 0x770f, 0xaa0f, 0xd0d9, 0xe0d9, 0xe1d9, 0xe4d9, 0xe5d9, 0xe8d9, 0xe9d9, 0xead9, 0xebd9, 0xecd9, 0xedd9, 0xeed9,
-		0xf0d9, 0xf1d9, 0xf2d9, 0xf3d9, 0xf4d9, 0xf5d9, 0xf6d9, 0xf7d9, 0xf8d9, 0xf9d9, 0xfad9, 0xfbd9, 0xfcd9, 0xfdd9, 0xfed9, 0xffd9
+		0xf0d9, 0xf1d9, 0xf2d9, 0xf3d9, 0xf4d9, 0xf5d9, 0xf6d9, 0xf7d9, 0xf8d9, 0xf9d9, 0xfad9, 0xfbd9, 0xfcd9, 0xfdd9, 0xfed9, 0xffd9, 0x6d66, 0x6f66, 0x9966, 0x9948,
+		0x9866, 0x9848, 0x080f, 0x090f, 0x0b0f, 0x060f, 0xed66, 0xcf48, 0xad66, 0xad48, 0xef66, 0x330f, 0x320f, 0x310f, 0xaf66, 0xaf48, 0xab66, 0xab48, 0x300f, 0xd748
 	};
 
 	input_by (1, D16, data [operation - SPECIAL_2_BEGIN]);
diff --git a/source/assembler.h b/source/assembler.h
index 0f6221d..3a4c82a 100644
--- a/source/assembler.h
+++ b/source/assembler.h
@@ -45,6 +45,31 @@ enum {
 	POPF,      // Pop stack into flags register (16/64 bit).
 	PUSHF,     // Push flags register onto stack (16/64 bit).
 	WAIT,      // Check for and handle pending float exceptions.
+	CLC,       // Clear carry flag.
+	CLD,       // Clear direction flag.
+	CLI,       // Clear interrupt flag.
+	STC,       // Set carry flag.
+	STD,       // Set direction flag.
+	STI,       // Set interrupt flag.
+	CMC,       // Complement carry flag.
+	INSB,      // Input 1 byte from IO port at DX to ES:(E)DI or RDI.
+	INSD,      // Input 4 bytes from IO port at DX to ES:(E)DI or RDI.
+	OUTSB,     // Output 1 byte from DS:(E)SI or RSI to IO port at DX.
+	OUTSD,     // Output 4 bytes from DS:(E)SI or RSI to IO port at DX.
+	CDQ,       // Sign-extend EAX into EDX:EAX.
+	CWDE,      // Sign-extend AX into EAX.
+	INAL,
+	INEAX,
+	INT3,
+	IRETD,
+	LODSB,
+	LODSD,
+	OUTAL,
+	OUTEAX,
+	SCASB,
+	SCASD,
+	STOSB,
+	STOSD,
 	SYSENTER,  // Execute fast call to ring 0 system procedure.
 	SYSEXIT,   // Execute fast return to ring 3 userland procedure.
 	SYSCALL,   // Execute OS system call handler at kernel.
@@ -81,6 +106,30 @@ enum {
 	FSCALE,    // Scale st0 by st1.
 	FSIN,      // Compute sin (st0).
 	FCOS,      // Compure cos (st0).
+	INSW,
+	OUTSW,
+	CWD,
+	CQO,
+	CBW,
+	CDQE,
+	INVD,
+	WBINVD,
+	UD2,
+	CLTS,
+	INAX,
+	IRETQ,
+	LODSW,
+	LODSQ,
+	OUTAX,
+	RDPMC,
+	RDMSR,
+	RDTSC,
+	SCASW,
+	SCASQ,
+	STOSW,
+	STOSQ,
+	WRMSR,
+	XLATB,
 	ENTER,     // Create a stack frame for procedure call.
 	CALL,      // Call near, relative or absolute procedure.
 	IN,        // Input byte from 8-bit IO port to r0.
diff --git a/tool/xfat.c b/tool/xfat.c
index 8f4377e..66de188 100644
--- a/tool/xfat.c
+++ b/tool/xfat.c
@@ -13,11 +13,9 @@
 "};\n"                                                                             \
 "int main (void) {\n"                                                              \
 "	unsigned int index;\n"                                                     \
-"	text_sector_byte = malloc (144UL * sizeof (* text_sector_byte));\n"        \
 "	assemble ((unsigned int) (sizeof (array) / sizeof (array [0])), array);\n" \
 "	for (index = 0; index < text_sector_size; ++index)\n"                      \
 "		printf (\"%02X \", text_sector_byte [index]);\n"                   \
-"	free (text_sector_byte);\n"                                                \
 "	return (0);\n"                                                             \
 "}\n"