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diff --git a/system/alpha/h/ev5_paldef.h b/system/alpha/h/ev5_paldef.h
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+#ifndef EV5_PALDEF_INCLUDED
+#define EV5_PALDEF_INCLUDED 1
+
+// from ev5_paldef.mar from Lance's fetch directory...pb Nov/95
+// some entries have been superceeded by the more recent evt_defs.h
+
+// These are lower-caseified and have the $ signs (unnecessarily we now discover) removed.
+
+// Note that at the bottom of this file is the version of ev5_defs.mar
+// which is more recent than the top part of the file and contains overlapping information...pb Nov/95
+
+// .MACRO PALDEFS
+// PALDEF_VER == 1 ; Flag the version number of this file.
+// .ENDM
+//
+//
+// .MACRO _HALT_CODES,_GBL
+// _DEFINI HALT_CODES,_GBL
+
+#define hlt_c_reset 0
+#define hlt_c_hw_halt 1
+#define hlt_c_ksp_inval 2
+#define hlt_c_scbb_inval 3
+#define hlt_c_ptbr_inval 4
+#define hlt_c_sw_halt 5
+#define hlt_c_dbl_mchk 6
+#define hlt_c_mchk_from_pal 7
+#define hlt_c_start 32
+#define hlt_c_callback 33
+#define hlt_c_mpstart 34
+#define hlt_c_lfu_start 35
+
+// halt codes above 255 reserved for platform specific errors
+// _DEFEND HALT_CODES,_GBL,DEF
+// .ENDM
+// .MACRO _MCHK_CODES,_GBL
+// _DEFINI MCHK_CODES,_GBL
+
+#define mchk_c_tperr (64<<1)
+#define mchk_c_tcperr (65<<1)
+#define mchk_c_herr (66<<1)
+#define mchk_c_ecc_c (67<<1)
+#define mchk_c_ecc_nc (68<<1)
+#define mchk_c_unknown (69<<1)
+#define mchk_c_cacksoft (70<<1)
+#define mchk_c_bugcheck (71<<1)
+#define mchk_c_os_bugcheck (72<<1)
+#define mchk_c_dcperr (73<<1)
+#define mchk_c_icperr (74<<1)
+#define mchk_c_retryable_ird (75<<1)
+#define mchk_c_proc_hrd_error (76<<1)
+#define mchk_c_scperr (77<<1)
+#define mchk_c_bcperr (78<<1)
+//; mchk codes above 255 reserved for platform specific errors
+
+
+#define mchk_c_read_nxm (256<<1)
+#define mchk_c_sys_hrd_error (257<<1)
+#define mchk_c_sys_ecc (258<<1)
+
+// _DEFEND MCHK_CODES,_GBL,DEF
+// .ENDM
+
+// .MACRO _EV5_MM,_GBL
+// _DEFINI _EV5_MM,_GBL
+
+#define page_seg_size_bits 10
+#define page_offset_size_bits 13
+#define page_size_bytes 8192
+#define va_size_bits 43
+#define pa_size_bits 45
+
+// _DEFEND _EV5_MM,_GBL,DEF
+// .ENDM
+
+// .MACRO _PALTEMP,_GBL
+// _DEFINI _PALTEMP,_GBL
+
+// replaced by ev5_defs.h #define pt0 (0x140)
+// replaced by ev5_defs.h #define pt1 (0x141)
+// replaced by ev5_defs.h #define pt2 (0x142)
+#define pt_entuna (0x142)
+// replaced by ev5_defs.h #define pt3 (0x143)
+#define pt_impure (0x143)
+// replaced by ev5_defs.h #define pt4 (0x144)
+// replaced by ev5_defs.h #define pt5 (0x145)
+// replaced by ev5_defs.h #define pt6 (0x146)
+// replaced by ev5_defs.h #define pt7 (0x147)
+#define pt_entif (0x147)
+// replaced by ev5_defs.h #define pt8 (0x148)
+#define pt_intmask (0x148)
+// replaced by ev5_defs.h #define pt9 (0x149)
+#define pt_entsys (0x149)
+#define pt_ps (0x149)
+// replaced by ev5_defs.h #define pt10 (0x14a)
+// replaced by ev5_defs.h #define pt11 (0x14b)
+#define pt_trap (0x14b)
+#define pt_entint (0x14b)
+// replaced by ev5_defs.h #define pt12 (0x14c)
+#define pt_entarith (0x14c)
+// replaced by ev5_defs.h #define pt13 (0x14d)
+#define pt_sys0 (0x14d)
+// replaced by ev5_defs.h #define pt14 (0x14e)
+#define pt_sys1 (0x14e)
+// replaced by ev5_defs.h #define pt15 (0x14f)
+#define pt_sys2 (0x14f)
+// replaced by ev5_defs.h #define pt16 (0x150)
+#define pt_whami (0x150)
+#define pt_mces (0x150)
+#define pt_misc (0x150)
+// replaced by ev5_defs.h #define pt17 (0x151)
+#define pt_scc (0x151)
+#define pt_sysval (0x151)
+// replaced by ev5_defs.h #define pt18 (0x152)
+#define pt_prbr (0x152)
+#define pt_usp (0x152)
+// replaced by ev5_defs.h #define pt19 (0x153)
+#define pt_ksp (0x153)
+// replaced by ev5_defs.h #define pt20 (0x154)
+#define pt_ptbr (0x154)
+// replaced by ev5_defs.h #define pt21 (0x155)
+#define pt_vptbr (0x155)
+#define pt_entmm (0x155)
+// replaced by ev5_defs.h #define pt22 (0x156)
+#define pt_scbb (0x156)
+#define pt_kgp (0x156)
+// replaced by ev5_defs.h #define pt23 (0x157)
+#define pt_pcbb (0x157)
+
+
+#define pt_misc_v_switch 48
+#define pt_misc_v_cm 56
+
+// _DEFEND _PALTEMP,_GBL,DEF
+// .ENDM
+
+// .MACRO _OSF_MMCSR_DEF,_GBL
+// _DEFINI OSFMMCSR,_GBL
+
+#define mmcsr_c_tnv 0
+#define mmcsr_c_acv 1
+#define mmcsr_c_for 2
+#define mmcsr_c_foe 3
+#define mmcsr_c_fow 4
+
+// _DEFEND OSFMMCSR,_GBL,DEF
+// .ENDM
+
+// .MACRO _MM_STAT_DEF,_GBL
+// _DEFINI MMSTATDEF,_GBL
+
+#define mm_stat_m_opcode (0x3F)
+#define mm_stat_m_ra (0x1F)
+#define evx_opc_sync (0x18)
+#define EVX_OPC_SYNC (0x18)
+#define evx_opc_hw_ld (0x1B)
+
+// _DEFEND MMSTATDEF,_GBL,DEF
+// .ENDM
+
+// .MACRO _OSF_A0_DEF,_GBL
+// _DEFINI OSFA0DEF,_GBL
+
+#define osf_a0_bpt (0x0)
+#define osf_a0_bugchk (0x1)
+#define osf_a0_gentrap (0x2)
+#define osf_a0_fen (0x3)
+#define osf_a0_opdec (0x4)
+
+// _DEFEND OSFA0DEF,_GBL,DEF
+// .ENDM
+
+// .MACRO _EV5_IPLDEF,_GBL
+// _DEFINI EV5_IPLDEF,_GBL
+
+#define ipl_machine_check 31
+#define ipl_powerfail 30
+#define ipl_perf_count 29
+#define ipl_clock 22
+#define ipl_interprocessor 22
+
+// _DEFEND EV5_IPLDEF,_GBL,DEF
+// .ENDM
+
+#endif