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windows-nt/Source/XPSP1/NT/base/ntos/ke/alpha/getsetrg.c

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/*++
Copyright (c) 1991 Microsoft Corporation
Copyright (c) 1992 Digital Equipment Corporation
Module Name:
getsetrg.c
Abstract:
This module implement the code necessary to get and set register values.
These routines are used during the emulation of unaligned data references
and floating point exceptions.
Author:
David N. Cutler (davec) 17-Jun-1991
Environment:
Kernel mode only.
Revision History:
Thomas Van Baak (tvb) 14-Jul-1992
Adapted for NT/Alpha
--*/
#include "ki.h"
ULONGLONG
KiGetRegisterValue (
IN ULONG Register,
IN PKEXCEPTION_FRAME ExceptionFrame,
IN PKTRAP_FRAME TrapFrame
)
/*++
Routine Description:
This function is called to get the value of a register from the specified
exception or trap frame.
Arguments:
Register - Supplies the number of the register whose value is to be
returned. Integer registers are specified as 0 - 31 and floating
registers are specified as 32 - 63.
ExceptionFrame - Supplies a pointer to an exception frame.
TrapFrame - Supplies a pointer to a trap frame.
Return Value:
The value of the specified register is returned as the function value.
--*/
{
//
// Dispatch on the register number.
//
switch (Register) {
//
// Integer register V0.
//
case 0:
return TrapFrame->IntV0;
//
// Integer register T0.
//
case 1:
return TrapFrame->IntT0;
//
// Integer register T1.
//
case 2:
return TrapFrame->IntT1;
//
// Integer register T2.
//
case 3:
return TrapFrame->IntT2;
//
// Integer register T3.
//
case 4:
return TrapFrame->IntT3;
//
// Integer register T4.
//
case 5:
return TrapFrame->IntT4;
//
// Integer register T5.
//
case 6:
return TrapFrame->IntT5;
//
// Integer register T6.
//
case 7:
return TrapFrame->IntT6;
//
// Integer register T7.
//
case 8:
return TrapFrame->IntT7;
//
// Integer register S0.
//
case 9:
return ExceptionFrame->IntS0;
//
// Integer register S1.
//
case 10:
return ExceptionFrame->IntS1;
//
// Integer register S2.
//
case 11:
return ExceptionFrame->IntS2;
//
// Integer register S3.
//
case 12:
return ExceptionFrame->IntS3;
//
// Integer register S4.
//
case 13:
return ExceptionFrame->IntS4;
//
// Integer register S5.
//
case 14:
return ExceptionFrame->IntS5;
//
// Integer register S6/Fp.
//
// N.B. Unlike the other S registers, S6 is obtained from the trap
// frame instead of the exception frame since it is used by the kernel
// as a trap frame pointer.
//
case 15:
return TrapFrame->IntFp;
//
// Integer register A0.
//
case 16:
return TrapFrame->IntA0;
//
// Integer register A1.
//
case 17:
return TrapFrame->IntA1;
//
// Integer register A2
//
case 18:
return TrapFrame->IntA2;
//
// Integer register A3.
//
case 19:
return TrapFrame->IntA3;
//
// Integer register A4.
//
case 20:
return TrapFrame->IntA4;
//
// Integer register A5.
//
case 21:
return TrapFrame->IntA5;
//
// Integer register T8.
//
case 22:
return TrapFrame->IntT8;
//
// Integer register T9.
//
case 23:
return TrapFrame->IntT9;
//
// Integer register T10.
//
case 24:
return TrapFrame->IntT10;
//
// Integer register T11.
//
case 25:
return TrapFrame->IntT11;
//
// Integer register Ra.
//
case 26:
return TrapFrame->IntRa;
//
// Integer register T12.
//
case 27:
return TrapFrame->IntT12;
//
// Integer register At.
//
case 28:
return TrapFrame->IntAt;
//
// Integer register Gp.
//
case 29:
return TrapFrame->IntGp;
//
// Integer register Sp.
//
case 30:
return TrapFrame->IntSp;
//
// Integer register Zero.
//
case 31:
return 0;
//
// Floating register F0.
//
case 32:
return TrapFrame->FltF0;
//
// Floating register F1.
//
case 33:
return TrapFrame->FltF1;
//
// Floating register F2.
//
case 34:
return ExceptionFrame->FltF2;
//
// Floating register F3.
//
case 35:
return ExceptionFrame->FltF3;
//
// Floating register F4.
//
case 36:
return ExceptionFrame->FltF4;
//
// Floating register F5.
//
case 37:
return ExceptionFrame->FltF5;
//
// Floating register F6.
//
case 38:
return ExceptionFrame->FltF6;
//
// Floating register F7.
//
case 39:
return ExceptionFrame->FltF7;
//
// Floating register F8.
//
case 40:
return ExceptionFrame->FltF8;
//
// Floating register F9.
//
case 41:
return ExceptionFrame->FltF9;
//
// Floating register F10.
//
case 42:
return TrapFrame->FltF10;
//
// Floating register F11.
//
case 43:
return TrapFrame->FltF11;
//
// Floating register F12.
//
case 44:
return TrapFrame->FltF12;
//
// Floating register F13.
//
case 45:
return TrapFrame->FltF13;
//
// Floating register F14.
//
case 46:
return TrapFrame->FltF14;
//
// Floating register F15.
//
case 47:
return TrapFrame->FltF15;
//
// Floating register F16.
//
case 48:
return TrapFrame->FltF16;
//
// Floating register F17.
//
case 49:
return TrapFrame->FltF17;
//
// Floating register F18.
//
case 50:
return TrapFrame->FltF18;
//
// Floating register F19.
//
case 51:
return TrapFrame->FltF19;
//
// Floating register F20.
//
case 52:
return TrapFrame->FltF20;
//
// Floating register F21.
//
case 53:
return TrapFrame->FltF21;
//
// Floating register F22.
//
case 54:
return TrapFrame->FltF22;
//
// Floating register F23.
//
case 55:
return TrapFrame->FltF23;
//
// Floating register F24.
//
case 56:
return TrapFrame->FltF24;
//
// Floating register F25.
//
case 57:
return TrapFrame->FltF25;
//
// Floating register F26.
//
case 58:
return TrapFrame->FltF26;
//
// Floating register F27.
//
case 59:
return TrapFrame->FltF27;
//
// Floating register F28.
//
case 60:
return TrapFrame->FltF28;
//
// Floating register F29.
//
case 61:
return TrapFrame->FltF29;
//
// Floating register F30.
//
case 62:
return TrapFrame->FltF30;
//
// Floating register F31 (Zero).
//
case 63:
return 0;
}
}
VOID
KiSetRegisterValue (
IN ULONG Register,
IN ULONGLONG Value,
OUT PKEXCEPTION_FRAME ExceptionFrame,
OUT PKTRAP_FRAME TrapFrame
)
/*++
Routine Description:
This function is called to set the value of a register in the specified
exception or trap frame.
Arguments:
Register - Supplies the number of the register whose value is to be
stored. Integer registers are specified as 0 - 31 and floating
registers are specified as 32 - 63.
Value - Supplies the value to be stored in the specified register.
ExceptionFrame - Supplies a pointer to an exception frame.
TrapFrame - Supplies a pointer to a trap frame.
Return Value:
None.
--*/
{
//
// Dispatch on the register number.
//
switch (Register) {
//
// Integer register V0.
//
case 0:
TrapFrame->IntV0 = Value;
return;
//
// Integer register T0.
//
case 1:
TrapFrame->IntT0 = Value;
return;
//
// Integer register T1.
//
case 2:
TrapFrame->IntT1 = Value;
return;
//
// Integer register T2.
//
case 3:
TrapFrame->IntT2 = Value;
return;
//
// Integer register T3.
//
case 4:
TrapFrame->IntT3 = Value;
return;
//
// Integer register T4.
//
case 5:
TrapFrame->IntT4 = Value;
return;
//
// Integer register T5.
//
case 6:
TrapFrame->IntT5 = Value;
return;
//
// Integer register T6.
//
case 7:
TrapFrame->IntT6 = Value;
return;
//
// Integer register T7.
//
case 8:
TrapFrame->IntT7 = Value;
return;
//
// Integer register S0.
//
case 9:
ExceptionFrame->IntS0 = Value;
return;
//
// Integer register S1.
//
case 10:
ExceptionFrame->IntS1 = Value;
return;
//
// Integer register S2.
//
case 11:
ExceptionFrame->IntS2 = Value;
return;
//
// Integer register S3.
//
case 12:
ExceptionFrame->IntS3 = Value;
return;
//
// Integer register S4.
//
case 13:
ExceptionFrame->IntS4 = Value;
return;
//
// Integer register S5.
//
case 14:
ExceptionFrame->IntS5 = Value;
return;
//
// Integer register S6/Fp.
//
// N.B. Unlike the other S registers, S6 is stored back in the trap
// frame instead of the exception frame since it is used by the kernel
// as a trap frame pointer.
//
case 15:
TrapFrame->IntFp = Value;
return;
//
// Integer register A0.
//
case 16:
TrapFrame->IntA0 = Value;
return;
//
// Integer register A1.
//
case 17:
TrapFrame->IntA1 = Value;
return;
//
// Integer register A2.
//
case 18:
TrapFrame->IntA2 = Value;
return;
//
// Integer register A3.
//
case 19:
TrapFrame->IntA3 = Value;
return;
//
// Integer register A4.
//
case 20:
TrapFrame->IntA4 = Value;
return;
//
// Integer register A5.
//
case 21:
TrapFrame->IntA5 = Value;
return;
//
// Integer register T8.
//
case 22:
TrapFrame->IntT8 = Value;
return;
//
// Integer register T9.
//
case 23:
TrapFrame->IntT9 = Value;
return;
//
// Integer register T10.
//
case 24:
TrapFrame->IntT10 = Value;
return;
//
// Integer register T11.
//
case 25:
TrapFrame->IntT11 = Value;
return;
//
// Integer register Ra.
//
case 26:
TrapFrame->IntRa = Value;
return;
//
// Integer register T12.
//
case 27:
TrapFrame->IntT12 = Value;
return;
//
// Integer register At.
//
case 28:
TrapFrame->IntAt = Value;
return;
//
// Integer register Gp.
//
case 29:
TrapFrame->IntGp = Value;
return;
//
// Integer register Sp.
//
case 30:
TrapFrame->IntSp = Value;
return;
//
// Integer register Zero.
//
case 31:
return;
//
// Floating register F0.
//
case 32:
TrapFrame->FltF0 = Value;
return;
//
// Floating register F1.
//
case 33:
TrapFrame->FltF1 = Value;
return;
//
// Floating register F2.
//
case 34:
ExceptionFrame->FltF2 = Value;
return;
//
// Floating register F3.
//
case 35:
ExceptionFrame->FltF3 = Value;
return;
//
// Floating register F4.
//
case 36:
ExceptionFrame->FltF4 = Value;
return;
//
// Floating register F5.
//
case 37:
ExceptionFrame->FltF5 = Value;
return;
//
// Floating register F6.
//
case 38:
ExceptionFrame->FltF6 = Value;
return;
//
// Floating register F7.
//
case 39:
ExceptionFrame->FltF7 = Value;
return;
//
// Floating register F8.
//
case 40:
ExceptionFrame->FltF8 = Value;
return;
//
// Floating register F9.
//
case 41:
ExceptionFrame->FltF9 = Value;
return;
//
// Floating register F10.
//
case 42:
TrapFrame->FltF10 = Value;
return;
//
// Floating register F11.
//
case 43:
TrapFrame->FltF11 = Value;
return;
//
// Floating register F12.
//
case 44:
TrapFrame->FltF12 = Value;
return;
//
// Floating register F13.
//
case 45:
TrapFrame->FltF13 = Value;
return;
//
// Floating register F14.
//
case 46:
TrapFrame->FltF14 = Value;
return;
//
// Floating register F15.
//
case 47:
TrapFrame->FltF15 = Value;
return;
//
// Floating register F16.
//
case 48:
TrapFrame->FltF16 = Value;
return;
//
// Floating register F17.
//
case 49:
TrapFrame->FltF17 = Value;
return;
//
// Floating register F18.
//
case 50:
TrapFrame->FltF18 = Value;
return;
//
// Floating register F19.
//
case 51:
TrapFrame->FltF19 = Value;
return;
//
// Floating register F20.
//
case 52:
TrapFrame->FltF20 = Value;
return;
//
// Floating register F21.
//
case 53:
TrapFrame->FltF21 = Value;
return;
//
// Floating register F22.
//
case 54:
TrapFrame->FltF22 = Value;
return;
//
// Floating register F23.
//
case 55:
TrapFrame->FltF23 = Value;
return;
//
// Floating register F24.
//
case 56:
TrapFrame->FltF24 = Value;
return;
//
// Floating register F25.
//
case 57:
TrapFrame->FltF25 = Value;
return;
//
// Floating register F26.
//
case 58:
TrapFrame->FltF26 = Value;
return;
//
// Floating register F27.
//
case 59:
TrapFrame->FltF27 = Value;
return;
//
// Floating register F28.
//
case 60:
TrapFrame->FltF28 = Value;
return;
//
// Floating register F29.
//
case 61:
TrapFrame->FltF29 = Value;
return;
//
// Floating register F30.
//
case 62:
TrapFrame->FltF30 = Value;
return;
//
// Floating register F31 (Zero).
//
case 63:
return;
}
}
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