| 1 | ;
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| 2 | ; PMINT.INC -- Handle interrupts
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| 3 | ;
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| 4 | ; Copyright (c) 1991-1996 by Eberhard Mattes
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| 5 | ;
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| 6 | ; This file is part of emx.
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| 7 | ;
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| 8 | ; emx is free software; you can redistribute it and/or modify it
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| 9 | ; under the terms of the GNU General Public License as published by
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| 10 | ; the Free Software Foundation; either version 2, or (at your option)
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| 11 | ; any later version.
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| 12 | ;
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| 13 | ; emx is distributed in the hope that it will be useful,
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | ; GNU General Public License for more details.
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| 17 | ;
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| 18 | ; You should have received a copy of the GNU General Public License
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| 19 | ; along with emx; see the file COPYING. If not, write to
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| 20 | ; the Free Software Foundation, 59 Temple Place - Suite 330,
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| 21 | ; Boston, MA 02111-1307, USA.
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| 22 | ;
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| 23 | ; See emx.asm for a special exception.
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| 24 | ;
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| 25 |
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| 26 | ;
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| 27 | ; Stack (at PMINT_STACK_SNAP_SHOT):
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| 28 | ;
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| 29 | ; GS FS ES DS EDI ESI EBP ESP EBX EDX ECX EAX ERRCD EIP CS EFLAGS ESP(U) SS(U)
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| 30 | ; 0 2 4 6 8 12 16 20 24 28 32 36 40 44 48 52 56 60
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| 31 | ; ^ ----- ------------
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| 32 | ; | simulated only for
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| 33 | ; EBP for interrupts user program
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| 34 | ; and exc. 0..7, 16
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| 35 | ;
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| 36 | ; See also PROCESS.INC, SPECIAL.ASM, /emx/include/sys/reg.h.
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| 37 | ;
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| 38 |
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| 39 | ISTACKFRAME STRUC
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| 40 | IS_GS DW ? ; 0
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| 41 | IS_FS DW ? ; 2
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| 42 | IS_ES DW ? ; 4
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| 43 | IS_DS DW ? ; 6
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| 44 | IS_EDI DD ? ; 8
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| 45 | IS_ESI DD ? ; 12
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| 46 | IS_EBP DD ? ; 16
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| 47 | IS_ESP_1 DD ? ; 20
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| 48 | IS_EBX DD ? ; 24
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| 49 | IS_EDX DD ? ; 28
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| 50 | IS_ECX DD ? ; 32
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| 51 | IS_EAX DD ? ; 36
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| 52 | IS_ERRCD DD ? ; 40
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| 53 | IS_EIP DD ? ; 44
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| 54 | IS_CS DW ? ; 48
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| 55 | IS_CS_PAD DW ? ; 50
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| 56 | IS_EFLAGS DD ? ; 52
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| 57 | IS_ESP DD ? ; 56
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| 58 | IS_SS DW ? ; 60
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| 59 | IS_SS_PAD DW ? ; 62
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| 60 | ISTACKFRAME ENDS
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| 61 |
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| 62 | I_GS EQU [BP].IS_GS
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| 63 | I_FS EQU [BP].IS_FS
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| 64 | I_ES EQU [BP].IS_ES
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| 65 | I_DS EQU [BP].IS_DS
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| 66 | I_EDI EQU [BP].IS_EDI
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| 67 | I_ESI EQU [BP].IS_ESI
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| 68 | I_EBP EQU [BP].IS_EBP
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| 69 | I_ESP_1 EQU [BP].IS_ESP_1
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| 70 | I_EBX EQU [BP].IS_EBX
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| 71 | I_EDX EQU [BP].IS_EDX
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| 72 | I_ECX EQU [BP].IS_ECX
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| 73 | I_EAX EQU [BP].IS_EAX
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| 74 | I_ERRCD EQU [BP].IS_ERRCD
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| 75 | I_EIP EQU [BP].IS_EIP
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| 76 | I_CS EQU [BP].IS_CS
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| 77 | I_EFLAGS EQU [BP].IS_EFLAGS
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| 78 | I_ESP EQU [BP].IS_ESP
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| 79 | I_SS EQU [BP].IS_SS
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| 80 |
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| 81 | I_REG_DWORDS = 16 ; Cf. PROCESS.ASM
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| 82 |
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| 83 | ;
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| 84 | ; Size of local variables of exception/interrupt handler
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| 85 | ;
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| 86 | FRAME_SIZE = 38
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| 87 |
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| 88 | ;
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| 89 | ; Local variables for exceptions
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| 90 | ;
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| 91 | VOUTPUT EQU (BYTE PTR [BP-2])
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| 92 | SWAP_PIDX EQU (BYTE PTR [BP-3])
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| 93 | EXCEPT_NO EQU (BYTE PTR [BP-4])
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| 94 | FAULT_ADDR EQU (DWORD PTR [BP-8])
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| 95 | ETEXT EQU (WORD PTR [BP-10])
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| 96 | EBYTE EQU (WORD PTR [BP-12])
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| 97 | EWORD EQU (WORD PTR [BP-14])
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| 98 | EDWORD EQU (WORD PTR [BP-16])
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| 99 | ECRLF EQU (WORD PTR [BP-18])
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| 100 | ECHAR EQU (WORD PTR [BP-20])
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| 101 | EXC_UNUSED_1 EQU (DWORD PTR [BP-24])
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| 102 | FAULT_PROC EQU (WORD PTR [BP-26])
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| 103 |
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| 104 | ;
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| 105 | ; Local variables for interrupts
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| 106 | ;
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| 107 | INT_NO EQU (BYTE PTR [BP-1])
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| 108 | HW_INT_VEC EQU (BYTE PTR [BP-2])
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| 109 | ;unused EQU (BYTE PTR [BP-3])
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| 110 | RM_FLAGS EQU (BYTE PTR [BP-4])
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| 111 | INP_HANDLE EQU (WORD PTR [BP-6])
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| 112 | RM_AX EQU (WORD PTR [BP-8])
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| 113 | RM_BX EQU (WORD PTR [BP-10])
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| 114 | RM_CX EQU (WORD PTR [BP-12])
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| 115 | RM_DX EQU (WORD PTR [BP-14])
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| 116 | RM_SI EQU (WORD PTR [BP-16])
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| 117 | RM_DI EQU (WORD PTR [BP-18])
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| 118 | RM_BP EQU (WORD PTR [BP-20])
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| 119 | RM_DS EQU (WORD PTR [BP-22])
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| 120 | RM_ES EQU (WORD PTR [BP-24])
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| 121 | NREQ EQU (DWORD PTR [BP-28])
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| 122 | NPTR EQU (DWORD PTR [BP-32])
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| 123 | N_TMP EQU (WORD PTR [BP-34])
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| 124 | N_AX EQU (WORD PTR [BP-36])
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| 125 | CONV_FLAG EQU (WORD PTR [BP-38])
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| 126 |
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| 127 | ;
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| 128 | ; Communication area for __fpuemu()
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| 129 | ;
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| 130 | FPUEMU_COM STRUCT
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| 131 | FEC_NOTIFY DD ?
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| 132 | FEC_PNUM DD ?
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| 133 | FEC_SIGNAL DD ?
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| 134 | FEC_FRAME DD I_REG_DWORDS DUP (?)
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| 135 | FPUEMU_COM ENDS
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| 136 |
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| 137 | FPUC_INIT = 0
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| 138 | FPUC_NEXT = 1
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| 139 | FPUC_SIGNAL = 2
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| 140 |
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| 141 | FPUN_NEWPROC = 0
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| 142 | FPUN_ENDPROC = 1
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| 143 | FPUN_EMU = 2
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| 144 |
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| 145 | ;
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| 146 | ; These are the offsets of the PM/RM communication buffer
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| 147 | ;
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| 148 | ; Note: There's a bug in DOS function 5AH (COMPAQ DOS 3.31):
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| 149 | ; It stores a backslash DS:[DX+0FFFFH] if DX=0 !!!
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| 150 | ; 0 < OFFSET_1 < 16 (cf. D_READ, D_WRITE, INIT_BUFFER)
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| 151 | ;
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| 152 | OFFSET_1 = 0004H ; Used if one buffer is required
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| 153 | OFFSET_2 = 8000H ; Used for second buffer if two
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| 154 | ; buffers are required
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| 155 | IFNDEF __PMINT
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| 156 |
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| 157 | SV_DATA SEGMENT
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| 158 |
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| 159 | EXTRN BUF_SEG:WORD
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| 160 | EXTRN BUF_SEL:WORD
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| 161 | EXTRN BUF1_SEG:WORD
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| 162 | EXTRN BUF2_SEG:WORD
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| 163 | EXTRN PMINT0_TAB:WORD
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| 164 | EXTRN PMINT8_TAB:WORD
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| 165 | EXTRN RM_CR0:DWORD
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| 166 | EXTRN PM_CR0:DWORD
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| 167 | EXTRN DBCS_LEAD_TAB:WORD
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| 168 |
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| 169 | SV_DATA ENDS
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| 170 |
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| 171 | SV_CODE SEGMENT
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| 172 |
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| 173 | EXTRN IRQ0_ADD:BYTE
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| 174 | EXTRN IRQ8_ADD:BYTE
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| 175 |
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| 176 | EXTRN INTERRUPT:NEAR ; Unexpected interrupt
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| 177 | EXTRN V2P_CONT:NEAR ; Return from VCPI server
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| 178 | EXTRN DOSF_ERROR:NEAR ; Invalid function code
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| 179 | EXTRN BREAK_AFTER_IRET:NEAR ; Set breakpoint to ret addr
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| 180 | EXTRN NMI:NEAR ; NMI handler
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| 181 | EXTRN PMINT_10H:NEAR ; VIO interface interrupt
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| 182 | EXTRN PMINT_11H:NEAR ; Equipment interrupt
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| 183 | EXTRN PMINT_14H:NEAR ; ASY interface interrupt
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| 184 | EXTRN PMINT_16H:NEAR ; KBD interface interrupt
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| 185 | EXTRN PMINT_17H:NEAR ; PRN interface interrupt
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| 186 | EXTRN PMINT_21H:NEAR ; DOS interface interrupt
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| 187 | EXTRN PMINT_31H:NEAR ; EXT interface interrupt
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| 188 | EXTRN PMINT_33H:NEAR ; MOU interface interrupt
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| 189 | EXTRN INT_RM:NEAR ; Call RM interrupt routine
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| 190 | EXTRN GET_DBCS_LEAD:NEAR ; Get DBCS lead bytes
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| 191 |
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| 192 | MOVE_TO_RM PROTO NEAR
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| 193 | MOVE_FROM_RM PROTO NEAR
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| 194 |
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| 195 | SV_CODE ENDS
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| 196 |
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| 197 |
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| 198 | INIT_CODE SEGMENT
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| 199 |
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| 200 | EXTRN V2V_CONT:NEAR
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| 201 | EXTRN INIT_BUFFER:NEAR
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| 202 |
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| 203 | INIT_CODE ENDS
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| 204 |
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| 205 | ENDIF
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