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Windows NT 4.0 source code leak
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windows-nt-4.0/private/ntos/ke/ppc/getsetrg.c

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/*++
Copyright (c) 1993 IBM Corporation and Microsoft 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:
Rick Simpson 6-Aug-1993
Based on MIPS version by David N. Cutler (davec) 17-Jun-1991
Environment:
Kernel mode only.
Revision History:
--*/
#include "ki.h"
ULONG
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. Only GPRs (integer regs) are supported, numbered 0..31.
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 GP register number.
//
switch (Register) {
case 0:
return TrapFrame->Gpr0;
case 1:
return TrapFrame->Gpr1;
case 2:
return TrapFrame->Gpr2;
case 3:
return TrapFrame->Gpr3;
case 4:
return TrapFrame->Gpr4;
case 5:
return TrapFrame->Gpr5;
case 6:
return TrapFrame->Gpr6;
case 7:
return TrapFrame->Gpr7;
case 8:
return TrapFrame->Gpr8;
case 9:
return TrapFrame->Gpr9;
case 10:
return TrapFrame->Gpr10;
case 11:
return TrapFrame->Gpr11;
case 12:
return TrapFrame->Gpr12;
case 13:
return ExceptionFrame->Gpr13;
case 14:
return ExceptionFrame->Gpr14;
case 15:
return ExceptionFrame->Gpr15;
case 16:
return ExceptionFrame->Gpr16;
case 17:
return ExceptionFrame->Gpr17;
case 18:
return ExceptionFrame->Gpr18;
case 19:
return ExceptionFrame->Gpr19;
case 20:
return ExceptionFrame->Gpr20;
case 21:
return ExceptionFrame->Gpr21;
case 22:
return ExceptionFrame->Gpr22;
case 23:
return ExceptionFrame->Gpr23;
case 24:
return ExceptionFrame->Gpr24;
case 25:
return ExceptionFrame->Gpr25;
case 26:
return ExceptionFrame->Gpr26;
case 27:
return ExceptionFrame->Gpr27;
case 28:
return ExceptionFrame->Gpr28;
case 29:
return ExceptionFrame->Gpr29;
case 30:
return ExceptionFrame->Gpr30;
case 31:
return ExceptionFrame->Gpr31;
}
return(0); // to eliminate a compiler warning
}
VOID
KiSetRegisterValue (
IN ULONG Register,
IN ULONG 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. This routine handles only GPRs (integer regs), numbered 0..31.
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 GP register number.
//
switch (Register) {
case 0:
TrapFrame->Gpr0 = Value;
return;
case 1:
TrapFrame->Gpr1 = Value;
return;
case 2:
TrapFrame->Gpr2 = Value;
return;
case 3:
TrapFrame->Gpr3 = Value;
return;
case 4:
TrapFrame->Gpr4 = Value;
return;
case 5:
TrapFrame->Gpr5 = Value;
return;
case 6:
TrapFrame->Gpr6 = Value;
return;
case 7:
TrapFrame->Gpr7 = Value;
return;
case 8:
TrapFrame->Gpr8 = Value;
return;
case 9:
TrapFrame->Gpr9 = Value;
return;
case 10:
TrapFrame->Gpr10 = Value;
return;
case 11:
TrapFrame->Gpr11 = Value;
return;
case 12:
TrapFrame->Gpr12 = Value;
return;
case 13:
ExceptionFrame->Gpr13 = Value;
return;
case 14:
ExceptionFrame->Gpr14 = Value;
return;
case 15:
ExceptionFrame->Gpr15 = Value;
return;
case 16:
ExceptionFrame->Gpr16 = Value;
return;
case 17:
ExceptionFrame->Gpr17 = Value;
return;
case 18:
ExceptionFrame->Gpr18 = Value;
return;
case 19:
ExceptionFrame->Gpr19 = Value;
return;
case 20:
ExceptionFrame->Gpr20 = Value;
return;
case 21:
ExceptionFrame->Gpr21 = Value;
return;
case 22:
ExceptionFrame->Gpr22 = Value;
return;
case 23:
ExceptionFrame->Gpr23 = Value;
return;
case 24:
ExceptionFrame->Gpr24 = Value;
return;
case 25:
ExceptionFrame->Gpr25 = Value;
return;
case 26:
ExceptionFrame->Gpr26 = Value;
return;
case 27:
ExceptionFrame->Gpr27 = Value;
return;
case 28:
ExceptionFrame->Gpr28 = Value;
return;
case 29:
ExceptionFrame->Gpr29 = Value;
return;
case 30:
ExceptionFrame->Gpr30 = Value;
return;
case 31:
ExceptionFrame->Gpr31 = Value;
return;
}
}
DOUBLE
KiGetFloatRegisterValue (
IN ULONG Register,
IN PKEXCEPTION_FRAME ExceptionFrame,
IN PKTRAP_FRAME TrapFrame
)
/*++
Routine Description:
This function is called to get the value of a floating point register
from the specified exception or trap frame.
Arguments:
Register - Supplies the number of the register whose value is to be
returned. Only FPRs (float regs) are supported, numbered 0..31.
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 FP register number.
//
switch (Register) {
case 0:
return TrapFrame->Fpr0;
case 1:
return TrapFrame->Fpr1;
case 2:
return TrapFrame->Fpr2;
case 3:
return TrapFrame->Fpr3;
case 4:
return TrapFrame->Fpr4;
case 5:
return TrapFrame->Fpr5;
case 6:
return TrapFrame->Fpr6;
case 7:
return TrapFrame->Fpr7;
case 8:
return TrapFrame->Fpr8;
case 9:
return TrapFrame->Fpr9;
case 10:
return TrapFrame->Fpr10;
case 11:
return TrapFrame->Fpr11;
case 12:
return TrapFrame->Fpr12;
case 13:
return TrapFrame->Fpr13;
case 14:
return ExceptionFrame->Fpr14;
case 15:
return ExceptionFrame->Fpr15;
case 16:
return ExceptionFrame->Fpr16;
case 17:
return ExceptionFrame->Fpr17;
case 18:
return ExceptionFrame->Fpr18;
case 19:
return ExceptionFrame->Fpr19;
case 20:
return ExceptionFrame->Fpr20;
case 21:
return ExceptionFrame->Fpr21;
case 22:
return ExceptionFrame->Fpr22;
case 23:
return ExceptionFrame->Fpr23;
case 24:
return ExceptionFrame->Fpr24;
case 25:
return ExceptionFrame->Fpr25;
case 26:
return ExceptionFrame->Fpr26;
case 27:
return ExceptionFrame->Fpr27;
case 28:
return ExceptionFrame->Fpr28;
case 29:
return ExceptionFrame->Fpr29;
case 30:
return ExceptionFrame->Fpr30;
case 31:
return ExceptionFrame->Fpr31;
}
}
VOID
KiSetFloatRegisterValue (
IN ULONG Register,
IN DOUBLE Value,
OUT PKEXCEPTION_FRAME ExceptionFrame,
OUT PKTRAP_FRAME TrapFrame
)
/*++
Routine Description:
This function is called to set the value of a floating point register
in the specified exception or trap frame.
Arguments:
Register - Supplies the number of the register whose value is to be
stored. This routine handles only Fprs (float regs), numbered 0..31.
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 FP register number.
//
switch (Register) {
case 0:
TrapFrame->Fpr0 = Value;
return;
case 1:
TrapFrame->Fpr1 = Value;
return;
case 2:
TrapFrame->Fpr2 = Value;
return;
case 3:
TrapFrame->Fpr3 = Value;
return;
case 4:
TrapFrame->Fpr4 = Value;
return;
case 5:
TrapFrame->Fpr5 = Value;
return;
case 6:
TrapFrame->Fpr6 = Value;
return;
case 7:
TrapFrame->Fpr7 = Value;
return;
case 8:
TrapFrame->Fpr8 = Value;
return;
case 9:
TrapFrame->Fpr9 = Value;
return;
case 10:
TrapFrame->Fpr10 = Value;
return;
case 11:
TrapFrame->Fpr11 = Value;
return;
case 12:
TrapFrame->Fpr12 = Value;
return;
case 13:
TrapFrame->Fpr13 = Value;
return;
case 14:
ExceptionFrame->Fpr14 = Value;
return;
case 15:
ExceptionFrame->Fpr15 = Value;
return;
case 16:
ExceptionFrame->Fpr16 = Value;
return;
case 17:
ExceptionFrame->Fpr17 = Value;
return;
case 18:
ExceptionFrame->Fpr18 = Value;
return;
case 19:
ExceptionFrame->Fpr19 = Value;
return;
case 20:
ExceptionFrame->Fpr20 = Value;
return;
case 21:
ExceptionFrame->Fpr21 = Value;
return;
case 22:
ExceptionFrame->Fpr22 = Value;
return;
case 23:
ExceptionFrame->Fpr23 = Value;
return;
case 24:
ExceptionFrame->Fpr24 = Value;
return;
case 25:
ExceptionFrame->Fpr25 = Value;
return;
case 26:
ExceptionFrame->Fpr26 = Value;
return;
case 27:
ExceptionFrame->Fpr27 = Value;
return;
case 28:
ExceptionFrame->Fpr28 = Value;
return;
case 29:
ExceptionFrame->Fpr29 = Value;
return;
case 30:
ExceptionFrame->Fpr30 = Value;
return;
case 31:
ExceptionFrame->Fpr31 = Value;
return;
}
}