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+// Inferno libmach/8.c
+// http://code.google.com/p/inferno-os/source/browse/utils/libmach/8.c
+//
+// Copyright © 1994-1999 Lucent Technologies Inc.
+// Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net).
+// Portions Copyright © 1997-1999 Vita Nuova Limited.
+// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).
+// Revisions Copyright © 2000-2004 Lucent Technologies Inc. and others.
+// Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+/*
+ * 386 definition
+ */
+#include <u.h>
+#include <bio.h>
+#include <ureg_x86.h>
+#include <mach.h>
+
+#define REGOFF(x) (uintptr)(&((struct Ureg *) 0)->x)
+
+#define PC REGOFF(pc)
+#define SP REGOFF(sp)
+#define AX REGOFF(ax)
+
+#define REGSIZE sizeof(struct Ureg)
+#define FP_CTL(x) (REGSIZE+4*(x))
+#define FP_REG(x) (FP_CTL(7)+10*(x))
+#define FPREGSIZE (7*4+8*10)
+
+Reglist i386reglist[] = {
+ {"DI", REGOFF(di), RINT, 'X'},
+ {"SI", REGOFF(si), RINT, 'X'},
+ {"BP", REGOFF(bp), RINT, 'X'},
+ {"BX", REGOFF(bx), RINT, 'X'},
+ {"DX", REGOFF(dx), RINT, 'X'},
+ {"CX", REGOFF(cx), RINT, 'X'},
+ {"AX", REGOFF(ax), RINT, 'X'},
+ {"GS", REGOFF(gs), RINT, 'X'},
+ {"FS", REGOFF(fs), RINT, 'X'},
+ {"ES", REGOFF(es), RINT, 'X'},
+ {"DS", REGOFF(ds), RINT, 'X'},
+ {"TRAP", REGOFF(trap), RINT, 'X'},
+ {"ECODE", REGOFF(ecode), RINT, 'X'},
+ {"PC", PC, RINT, 'X'},
+ {"CS", REGOFF(cs), RINT, 'X'},
+ {"EFLAGS", REGOFF(flags), RINT, 'X'},
+ {"SP", SP, RINT, 'X'},
+ {"SS", REGOFF(ss), RINT, 'X'},
+
+ {"E0", FP_CTL(0), RFLT, 'X'},
+ {"E1", FP_CTL(1), RFLT, 'X'},
+ {"E2", FP_CTL(2), RFLT, 'X'},
+ {"E3", FP_CTL(3), RFLT, 'X'},
+ {"E4", FP_CTL(4), RFLT, 'X'},
+ {"E5", FP_CTL(5), RFLT, 'X'},
+ {"E6", FP_CTL(6), RFLT, 'X'},
+ {"F0", FP_REG(0), RFLT, '3'},
+ {"F1", FP_REG(1), RFLT, '3'},
+ {"F2", FP_REG(2), RFLT, '3'},
+ {"F3", FP_REG(3), RFLT, '3'},
+ {"F4", FP_REG(4), RFLT, '3'},
+ {"F5", FP_REG(5), RFLT, '3'},
+ {"F6", FP_REG(6), RFLT, '3'},
+ {"F7", FP_REG(7), RFLT, '3'},
+ { 0 }
+};
+
+Mach mi386 =
+{
+ "386",
+ MI386, /* machine type */
+ i386reglist, /* register list */
+ REGSIZE, /* size of registers in bytes */
+ FPREGSIZE, /* size of fp registers in bytes */
+ "PC", /* name of PC */
+ "SP", /* name of SP */
+ 0, /* link register */
+ "setSB", /* static base register name (bogus anyways) */
+ 0, /* static base register value */
+ 0x1000, /* page size */
+ 0x80100000ULL, /* kernel base */
+ 0xF0000000ULL, /* kernel text mask */
+ 0xFFFFFFFFULL, /* user stack top */
+ 1, /* quantization of pc */
+ 4, /* szaddr */
+ 4, /* szreg */
+ 4, /* szfloat */
+ 8, /* szdouble */
+};