Initial commit 0.13.9.16

1 files changed, 110 insertions, 0 deletions

diff --git a/src/fake86/cpu.h b/src/fake86/cpu.h
new file mode 100755
index 0000000..6b37f47
--- /dev/null
+++ b/src/fake86/cpu.h
@@ -0,0 +1,110 @@
+/*
+  Fake86: A portable, open-source 8086 PC emulator.
+  Copyright (C)2010-2012 Mike Chambers
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <time.h>
+#endif
+
+#define regax 0
+#define regcx 1
+#define regdx 2
+#define regbx 3
+#define regsp 4
+#define regbp 5
+#define regsi 6
+#define regdi 7
+#define reges 0
+#define regcs 1
+#define regss 2
+#define regds 3
+
+#ifdef __BIG_ENDIAN__
+#define regal 1
+#define regah 0
+#define regcl 3
+#define regch 2
+#define regdl 5
+#define regdh 4
+#define regbl 7
+#define regbh 6
+#else
+#define regal 0
+#define regah 1
+#define regcl 2
+#define regch 3
+#define regdl 4
+#define regdh 5
+#define regbl 6
+#define regbh 7
+#endif
+
+union _bytewordregs_ {
+	uint16_t wordregs[8];
+	uint8_t byteregs[8];
+};
+
+#ifdef CPU_ADDR_MODE_CACHE
+struct addrmodecache_s {
+	uint16_t exitcs;
+	uint16_t exitip;
+	uint16_t disp16;
+	uint32_t len;
+	uint8_t mode;
+	uint8_t reg;
+	uint8_t rm;
+	uint8_t forcess;
+	uint8_t valid;
+};
+#endif
+
+#define StepIP(x)	ip += x
+#define getmem8(x, y)	read86(segbase(x) + y)
+#define getmem16(x, y)	readw86(segbase(x) + y)
+#define putmem8(x, y, z)	write86(segbase(x) + y, z)
+#define putmem16(x, y, z)	writew86(segbase(x) + y, z)
+#define signext(value)	(int16_t)(int8_t)(value)
+#define signext32(value)	(int32_t)(int16_t)(value)
+#define getreg16(regid)	regs.wordregs[regid]
+#define getreg8(regid)	regs.byteregs[byteregtable[regid]]
+#define putreg16(regid, writeval)	regs.wordregs[regid] = writeval
+#define putreg8(regid, writeval)	regs.byteregs[byteregtable[regid]] = writeval
+#define getsegreg(regid)	segregs[regid]
+#define putsegreg(regid, writeval)	segregs[regid] = writeval
+#define segbase(x)	((uint32_t) x << 4)
+
+#define makeflagsword() \
+	( \
+	2 | (uint16_t) cf | ((uint16_t) pf << 2) | ((uint16_t) af << 4) | ((uint16_t) zf << 6) | ((uint16_t) sf << 7) | \
+	((uint16_t) tf << 8) | ((uint16_t) ifl << 9) | ((uint16_t) df << 10) | ((uint16_t) of << 11) \
+	)
+
+#define decodeflagsword(x) { \
+	temp16 = x; \
+	cf = temp16 & 1; \
+	pf = (temp16 >> 2) & 1; \
+	af = (temp16 >> 4) & 1; \
+	zf = (temp16 >> 6) & 1; \
+	sf = (temp16 >> 7) & 1; \
+	tf = (temp16 >> 8) & 1; \
+	ifl = (temp16 >> 9) & 1; \
+	df = (temp16 >> 10) & 1; \
+	of = (temp16 >> 11) & 1; \
+	}