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/* esfMips.h - exception stack frame for MIPS architecture */
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/*
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* Copyright (c) 1990-1993, 1996, 2001, 2003-2004,
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* 2007, 2010-2011 Wind River Systems, Inc.
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*
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* The right to copy, distribute or otherwise make use of this software
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* may be licensed only pursuant to the terms of an applicable Wind River
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* license agreement.
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*/
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/*
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* This file has been developed or significantly modified by the
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* MIPS Center of Excellence Dedicated Engineering Staff.
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* This notice is as per the MIPS Center of Excellence Master Partner
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* Agreement, do not remove this notice without checking first with
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* WR/Platforms MIPS Center of Excellence engineering management.
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*/
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/*
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modification history
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--------------------
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01v,31may11,slk Add extended interrupts for RMI _xlp variant
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01u,27may10,d_c Rename CAVIUM_CNMIPS_* to _WRS_CAVIUM_CNMIPS_* and define in
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arch Makefile
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01t,29apr10,pad Moved extern C statement after include statements.
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01t,31mar10,d_c Add cav_cn5xxx and cav_cn6xxx variants
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01s,26sep07,d_c Add extended interrupts for RMI _xlr variant
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01r,10aug07,rlg MIPS library restructure changes
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01q,29jul07,pes Addition of more registers for Cavium save/restore
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01p,14jul04,agf Replace _pad with previousEsf ptr
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01o,11sep03,jmt Modify Exception Stack for Base 6
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01n,26aug03,jmt Add TLBHI registers to E_STK
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01m,16jul01,ros add CofE comment
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01l,12feb96,mem Added cause and fpscr to REG_SET.
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0ik,22oct93,cd added R4000 support, added 64bit support.
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01j,22sep92,rrr added support for c++
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01i,19jul92,rrr changed ESFR3K member errno to _errno so it would compile
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01h,03jun92,ajm updated file name referenced to match real name
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01g,26may92,rrr the tree shuffle
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-changed includes to have absolute path from h/
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01f,04oct91,rrr passed through the ansification filter
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-fixed #else and #endif
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-changed ASMLANGUAGE to _ASMLANGUAGE
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-changed copyright notice
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01e,27may91,ajm reordered ESF to model REG_SET
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01d,19sep90,ajm merged in space for fpcsr
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01c,08may90,ajm added stack space for call with up to four parameters
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01b,16apr90,ajm moved epc and sp to top of stack for use by
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windALib.s
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01a,13apr90,ajm written
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*/
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#ifndef __INCesfMipsh
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#define __INCesfMipsh
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#include <arch/mips/regsMips.h>
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#include <arch/mips/archMips.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Exception stack frame. Since done in common software routine,
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* there exists merely one frame. Notice the coordination of
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* stack frame definitions for assembler routines, and the
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* order of the structure ESFMIPS!!!
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*
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*/
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/* ESFMIPS - all inclusive stack frame */
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#ifndef _ASMLANGUAGE
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typedef struct
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{
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ULONG param1; /* space for param 1 */
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ULONG param2; /* space for param 2 */
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ULONG param3; /* space for param 3 */
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ULONG param4; /* space for param 3 */
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ULONG _errno; /* errno */
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ULONG cause; /* cause register */
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ULONG cntxt; /* context reg */
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ULONG fpcsr; /* float status register */
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ULONG badva; /* bad virtual address reg */
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ULONG * previousEsf; /* pointer to nested ESF */
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REG_SET esfRegs; /* general register set */
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} ESFMIPS;
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#endif /* _ASMLANGUAGE */
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/*
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* The following list of definitions tell me where I saved state on
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* the process stack. See excALib.s
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*
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*/
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#define E_STK_PARAM1 (0*4) /* saved for param 1 */
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#define E_STK_PARAM2 (1*4) /* saved for param 2 */
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#define E_STK_PARAM3 (2*4) /* saved for param 3 */
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#define E_STK_PARAM4 (3*4) /* saved for param 4 */
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#define E_ERRNO (4*4) /* errno */
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#define E_STK_CAUSE (5*4) /* cause register */
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#define E_STK_CTX (6*4) /* context reg */
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#define E_STK_FPCSR (7*4) /* float status register */
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#define E_STK_BADVADDR (8*4) /* bad virtual address reg */
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#define E_STK_PREVESF (9*4) /* pointer to nested stack frame */
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#define E_STK_SR (10*4) /* status register */
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#define E_STK_EPC (11*4) /* calculated epc */
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#define E_STK_LO (12*4+0*_RTypeSize) /* mul/div low */
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#define E_STK_HI (12*4+1*_RTypeSize) /* mul/div hi */
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#define E_STK_GREG_BASE (12*4+2*_RTypeSize)
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#define E_STK_GREG_OFFSET(n) (E_STK_GREG_BASE + (n)*_RTypeSize)
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#define E_STK_ZERO E_STK_GREG_OFFSET(0) /* just for kicks, always zero */
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#define E_STK_AT E_STK_GREG_OFFSET(1) /* assembler temporary */
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#define E_STK_V0 E_STK_GREG_OFFSET(2) /* return value 1 */
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#define E_STK_V1 E_STK_GREG_OFFSET(3) /* return value 2 */
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#define E_STK_A0 E_STK_GREG_OFFSET(4) /* passed parameter 1 */
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#define E_STK_A1 E_STK_GREG_OFFSET(5) /* passed parameter 2 */
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#define E_STK_A2 E_STK_GREG_OFFSET(6) /* passed parameter 3 */
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#define E_STK_A3 E_STK_GREG_OFFSET(7) /* passed parameter 4 */
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#define E_STK_T0 E_STK_GREG_OFFSET(8) /* temp reg t0 */
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#define E_STK_T1 E_STK_GREG_OFFSET(9) /* temp reg t1 */
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#define E_STK_T2 E_STK_GREG_OFFSET(10) /* temp reg t2 */
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#define E_STK_T3 E_STK_GREG_OFFSET(11) /* temp reg t3 */
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#define E_STK_T4 E_STK_GREG_OFFSET(12) /* temp reg t4 */
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#define E_STK_T5 E_STK_GREG_OFFSET(13) /* temp reg t5 */
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#define E_STK_T6 E_STK_GREG_OFFSET(14) /* temp reg t6 */
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#define E_STK_T7 E_STK_GREG_OFFSET(15) /* temp reg t7 */
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#define E_STK_S0 E_STK_GREG_OFFSET(16) /* saved reg s0 */
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#define E_STK_S1 E_STK_GREG_OFFSET(17) /* saved reg s1 */
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#define E_STK_S2 E_STK_GREG_OFFSET(18) /* saved reg s2 */
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#define E_STK_S3 E_STK_GREG_OFFSET(19) /* saved reg s3 */
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#define E_STK_S4 E_STK_GREG_OFFSET(20) /* saved reg s4 */
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#define E_STK_S5 E_STK_GREG_OFFSET(21) /* saved reg s5 */
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#define E_STK_S6 E_STK_GREG_OFFSET(22) /* saved reg s6 */
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#define E_STK_S7 E_STK_GREG_OFFSET(23) /* saved reg s7 */
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#define E_STK_T8 E_STK_GREG_OFFSET(24) /* temp reg t8 */
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#define E_STK_T9 E_STK_GREG_OFFSET(25) /* temp reg t9 */
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#define E_STK_K0 E_STK_GREG_OFFSET(26) /* kernel reg 0 */
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#define E_STK_K1 E_STK_GREG_OFFSET(27) /* kernel reg 1, not saved */
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#define E_STK_GP E_STK_GREG_OFFSET(28) /* global pointer */
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#define E_STK_SP E_STK_GREG_OFFSET(29) /* stack pointer */
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#define E_STK_FP E_STK_GREG_OFFSET(30) /* saved reg */
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#define E_STK_RA E_STK_GREG_OFFSET(31) /* return addr reg */
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#define E_STK_GREG_END (E_STK_GREG_BASE + 32*_RTypeSize)
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#define E_STK_WDB_CAUSE (E_STK_GREG_END + 0*4)
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#define E_STK_WDB_FPCSR (E_STK_GREG_END + 1*4)
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#define E_STK_INTCTRL (E_STK_GREG_END + 2*4) /* Ext Intr Ctrl */
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#define E_STK_ULEXTRA1 (E_STK_GREG_END + 3*4) /* extra, 4 bytes for padding */
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#define E_STK_TLBHI (E_STK_GREG_END + 4*4 + 0*_RTypeSize) /* addr space storage */
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#define E_STK_RTEXTRA2 (E_STK_GREG_END + 4*4 + 1*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA3 (E_STK_GREG_END + 4*4 + 2*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA4 (E_STK_GREG_END + 4*4 + 3*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA5 (E_STK_GREG_END + 4*4 + 4*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA6 (E_STK_GREG_END + 4*4 + 5*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA7 (E_STK_GREG_END + 4*4 + 6*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA8 (E_STK_GREG_END + 4*4 + 7*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA9 (E_STK_GREG_END + 4*4 + 8*_RTypeSize) /* extra */
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#define E_STK_RTEXTRA10 (E_STK_GREG_END + 4*4 + 9*_RTypeSize) /* extra */
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#if defined(_WRS_CAVIUM_CNMIPS_CORE) || defined(_WRS_CAVIUM_CNMIPS_II_CORE)
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#define E_STK_P0 E_STK_RTEXTRA3
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#define E_STK_P1 E_STK_RTEXTRA4
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#define E_STK_P2 E_STK_RTEXTRA5
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#define E_STK_MPL0 E_STK_RTEXTRA6
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#define E_STK_MPL1 E_STK_RTEXTRA7
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#define E_STK_MPL2 E_STK_RTEXTRA8
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#define E_STK_TLO E_STK_RTEXTRA9
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#define E_STK_THI E_STK_RTEXTRA10
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#endif /* defined(_WRS_CAVIUM_CNMIPS_CORE) || defined(_WRS_CAVIUM_CNMIPS_II_CORE) */
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#if defined(_WRS_MIPS_NETLOGIC_CPU)
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#define E_STK_EIMR E_STK_RTEXTRA3
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#endif /* _WRS_MIPS_NETLOGIC_CPU */
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#define ESTKSIZE (E_STK_GREG_END + 4*4 +10*_RTypeSize) /* exception stack frame size */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCesfMipsh */
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