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/* -*- mode: C; c-basic-offset: 3; -*- */
/*---------------------------------------------------------------*/
/*--- begin guest_s390_defs.h ---*/
/*---------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright IBM Corp. 2010-2011
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.
The GNU General Public License is contained in the file COPYING.
*/
/* Contributed by Florian Krohm */
#ifndef __VEX_GUEST_S390_DEFS_H
#define __VEX_GUEST_S390_DEFS_H
#include "libvex_basictypes.h" // offsetof
#include "libvex_ir.h" // IRSB (needed by bb_to_IR.h)
#include "libvex.h" // VexArch (needed by bb_to_IR.h)
#include "guest_generic_bb_to_IR.h" // DisResult
/* Convert one s390 insn to IR. See the type DisOneInstrFn in
bb_to_IR.h. */
DisResult disInstr_S390 ( IRSB* irbb,
Bool put_IP,
Bool (*resteerOkFn) ( void*, Addr64 ),
Bool resteerCisOk,
void* callback_opaque,
UChar* guest_code,
Long delta,
Addr64 guest_IP,
VexArch guest_arch,
VexArchInfo* archinfo,
VexAbiInfo* abiinfo,
Bool host_bigendian );
/* Used by the optimiser to specialise calls to helpers. */
IRExpr* guest_s390x_spechelper ( HChar *function_name,
IRExpr **args,
IRStmt **precedingStmts,
Int n_precedingStmts);
/* Describes to the optimser which part of the guest state require
precise memory exceptions. This is logically part of the guest
state description. */
Bool guest_s390x_state_requires_precise_mem_exns ( Int, Int );
extern VexGuestLayout s390xGuest_layout;
#define S390X_GUEST_OFFSET(x) offsetof(VexGuestS390XState, x)
/*------------------------------------------------------------*/
/*--- Dirty Helper functions. ---*/
/*------------------------------------------------------------*/
void s390x_dirtyhelper_00(VexGuestS390XState *guest_state);
void s390x_dirtyhelper_EX(ULong torun);
ULong s390x_dirtyhelper_STCK(ULong *addr);
ULong s390x_dirtyhelper_STCKF(ULong *addr);
ULong s390x_dirtyhelper_STCKE(ULong *addr);
ULong s390x_dirtyhelper_STFLE(VexGuestS390XState *guest_state, HWord addr);
/* The various ways to compute the condition code. */
enum {
S390_CC_OP_BITWISE = 0,
S390_CC_OP_SIGNED_COMPARE = 1,
S390_CC_OP_UNSIGNED_COMPARE = 2,
S390_CC_OP_SIGNED_ADD_32 = 3,
S390_CC_OP_SIGNED_ADD_64 = 4,
S390_CC_OP_UNSIGNED_ADD_32 = 5,
S390_CC_OP_UNSIGNED_ADD_64 = 6,
S390_CC_OP_UNSIGNED_ADDC_32 = 7,
S390_CC_OP_UNSIGNED_ADDC_64 = 8,
S390_CC_OP_SIGNED_SUB_32 = 9,
S390_CC_OP_SIGNED_SUB_64 = 10,
S390_CC_OP_UNSIGNED_SUB_32 = 11,
S390_CC_OP_UNSIGNED_SUB_64 = 12,
S390_CC_OP_UNSIGNED_SUBB_32 = 13,
S390_CC_OP_UNSIGNED_SUBB_64 = 14,
S390_CC_OP_LOAD_AND_TEST = 15,
S390_CC_OP_LOAD_POSITIVE_32 = 16,
S390_CC_OP_LOAD_POSITIVE_64 = 17,
S390_CC_OP_TEST_AND_SET = 18,
S390_CC_OP_TEST_UNDER_MASK_8 = 19,
S390_CC_OP_TEST_UNDER_MASK_16 = 20,
S390_CC_OP_SHIFT_LEFT_32 = 21,
S390_CC_OP_SHIFT_LEFT_64 = 22,
S390_CC_OP_INSERT_CHAR_MASK_32 = 23,
S390_CC_OP_BFP_RESULT_32 = 24,
S390_CC_OP_BFP_RESULT_64 = 25,
S390_CC_OP_BFP_RESULT_128 = 26,
S390_CC_OP_BFP_32_TO_INT_32 = 27,
S390_CC_OP_BFP_64_TO_INT_32 = 28,
S390_CC_OP_BFP_128_TO_INT_32 = 29,
S390_CC_OP_BFP_32_TO_INT_64 = 30,
S390_CC_OP_BFP_64_TO_INT_64 = 31,
S390_CC_OP_BFP_128_TO_INT_64 = 32,
S390_CC_OP_BFP_TDC_32 = 33,
S390_CC_OP_BFP_TDC_64 = 34,
S390_CC_OP_BFP_TDC_128 = 35,
S390_CC_OP_SET = 36
};
/*------------------------------------------------------------*/
/*--- Thunk layout ---*/
/*------------------------------------------------------------*/
/*
Z -- value is zero extended to 32 / 64 bit
S -- value is sign extended to 32 / 64 bit
F -- a binary floating point value
+--------------------------------+-----------------------+----------------------+-------------+
| op | cc_dep1 | cc_dep2 | cc_ndep |
+--------------------------------+-----------------------+----------------------+-------------+
| S390_CC_OP_BITWISE | Z result | | |
| S390_CC_OP_SIGNED_COMPARE | S 1st operand | S 2nd operand | |
| S390_CC_OP_UNSIGNED_COMPARE | Z 1st operand | Z 2nd operand | |
| S390_CC_OP_SIGNED_ADD_32 | S 1st operand | S 2nd operand | |
| S390_CC_OP_SIGNED_ADD_64 | S 1st operand | S 2nd operand | |
| S390_CC_OP_UNSIGNED_ADD_32 | Z 1st operand | Z 2nd operand | |
| S390_CC_OP_UNSIGNED_ADD_64 | Z 1st operand | Z 2nd operand | |
| S390_CC_OP_UNSIGNED_ADDC_32 | Z 1st operand | Z 2nd operand | Z carry in |
| S390_CC_OP_UNSIGNED_ADDC_64 | Z 1st operand | Z 2nd operand | Z carry in |
| S390_CC_OP_SIGNED_SUB_32 | S left operand | S right operand | |
| S390_CC_OP_SIGNED_SUB_64 | S left operand | S right operand | |
| S390_CC_OP_UNSIGNED_SUB_32 | Z left operand | Z right operand | |
| S390_CC_OP_UNSIGNED_SUB_64 | Z left operand | Z right operand | |
| S390_CC_OP_UNSIGNED_SUBB_32 | Z left operand | Z right operand | Z borrow in |
| S390_CC_OP_UNSIGNED_SUBB_64 | Z left operand | Z right operand | Z borrow in |
| S390_CC_OP_LOAD_AND_TEST | S loaded value | | |
| S390_CC_OP_LOAD_POSITIVE_32 | S loaded value | | |
| S390_CC_OP_LOAD_POSITIVE_64 | S loaded value | | |
| S390_CC_OP_TEST_AND_SET | Z tested value | | |
| S390_CC_OP_TEST_UNDER_MASK_8 | Z tested value | Z mask | |
| S390_CC_OP_TEST_UNDER_MASK_16 | Z tested value | Z mask | |
| S390_CC_OP_SHIFT_LEFT_32 | Z value to be shifted | Z shift amount | |
| S390_CC_OP_SHIFT_LEFT_64 | Z value to be shifted | Z shift amount | |
| S390_CC_OP_INSERT_CHAR_MASK_32 | Z result | Z mask | |
| S390_CC_OP_BFP_RESULT_32 | F result | | |
| S390_CC_OP_BFP_RESULT_64 | F result | | |
| S390_CC_OP_BFP_RESULT_128 | F result hi 64 bits | F result low 64 bits | |
| S390_CC_OP_BFP_32_TO_INT_32 | F source | | |
| S390_CC_OP_BFP_64_TO_INT_32 | F source | | |
| S390_CC_OP_BFP_128_TO_INT_32 | F source hi 64 bits | | |
| S390_CC_OP_BFP_32_TO_INT_64 | F source | | |
| S390_CC_OP_BFP_64_TO_INT_64 | F source | | |
| S390_CC_OP_BFP_128_TO_INT_64 | F source hi 64 bits | | |
| S390_CC_OP_BFP_TDC_32 | F value | Z class | |
| S390_CC_OP_BFP_TDC_64 | F value | Z class | |
| S390_CC_OP_BFP_TDC_128 | F value hi 64 bits | F value low 64 bits | Z class |
| S390_CC_OP_SET | Z condition code | | |
+--------------------------------+-----------------------+----------------------+-------------+
*/
/*------------------------------------------------------------*/
/*--- Condition code helpers. ---*/
/*------------------------------------------------------------*/
UInt s390_calculate_cc(ULong cc_op, ULong cc_dep1, ULong cc_dep2,
ULong cc_ndep);
UInt s390_calculate_icc(ULong op, ULong dep1, ULong dep2);
UInt s390_calculate_cond(ULong mask, ULong op, ULong dep1, ULong dep2,
ULong ndep);
/* Size of special instruction preamble */
#define S390_SPECIAL_OP_PREAMBLE_SIZE 8
/* Size of special instructions */
#define S390_SPECIAL_OP_SIZE 2
/* Last target instruction for the EX helper */
extern ULong last_execute_target;
/*---------------------------------------------------------------*/
/*--- end guest_s390_defs.h ---*/
/*---------------------------------------------------------------*/
#endif /* __VEX_GUEST_S390_DEFS_H */
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