Source code of Windows XP (NT5)
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/*++
Copyright (c) 1991 Microsoft CorporationCopyright (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"
ULONGLONGKiGetRegisterValue ( 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; }} VOIDKiSetRegisterValue ( 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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