24.7.1 Check_CPU Procedure
---------------------------------------------------------------------
-- --
-- Uses the Intel_CPU package to identify the CPU the program is --
-- running on, and some of the features it supports. --
-- --
---------------------------------------------------------------------
with Intel_CPU; -- Intel CPU detection functions
with Ada.Text_IO; -- Standard text I/O
with Ada.Command_Line; -- To set the exit status
procedure Check_CPU is
Type_Found : Boolean := False;
-- Flag to indicate that processor was identified
Features : Intel_CPU.Processor_Features;
-- The processor features
Signature : Intel_CPU.Processor_Signature;
-- The processor type signature
begin
-----------------------------------
-- Display the program banner. --
-----------------------------------
Ada.Text_IO.Put_Line (Ada.Command_Line.Command_Name &
": check Intel CPU version and features, v1.0");
Ada.Text_IO.Put_Line ("distribute freely, but no warranty whatsoever");
Ada.Text_IO.New_Line;
-----------------------------------------------------------------------
-- We can safely start with the assumption that we are on at least --
-- a x386 processor. If the CPUID instruction is present, then we --
-- have a later processor type. --
-----------------------------------------------------------------------
if Intel_CPU.Has_CPUID = False then
-- No CPUID instruction, so we assume this is indeed a x386
-- processor. We can still check if it has a FP co-processor.
if Intel_CPU.Has_FPU then
Ada.Text_IO.Put_Line
("x386-type processor with a FP co-processor");
else
Ada.Text_IO.Put_Line
("x386-type processor without a FP co-processor");
end if; -- check for FPU
-- Program done
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Success);
return;
end if; -- check for CPUID
-----------------------------------------------------------------------
-- If CPUID is supported, check if this is a true Intel processor, --
-- if it is not, display a warning. --
-----------------------------------------------------------------------
if Intel_CPU.Vendor_ID /= Intel_CPU.Intel_Processor then
Ada.Text_IO.Put_Line ("*** This is a Intel compatible processor");
Ada.Text_IO.Put_Line ("*** Some information may be incorrect");
end if; -- check if Intel
----------------------------------------------------------------------
-- With the CPUID instruction present, we can assume at least a --
-- x486 processor. If the CPUID support level is < 1 then we have --
-- to leave it at that. --
----------------------------------------------------------------------
if Intel_CPU.CPUID_Level < 1 then
-- Ok, this is a x486 processor. we still can get the Vendor ID
Ada.Text_IO.Put_Line ("x486-type processor");
Ada.Text_IO.Put_Line ("Vendor ID is " & Intel_CPU.Vendor_ID);
-- We can also check if there is a FPU present
if Intel_CPU.Has_FPU then
Ada.Text_IO.Put_Line ("Floating-Point support");
else
Ada.Text_IO.Put_Line ("No Floating-Point support");
end if; -- check for FPU
-- Program done
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Success);
return;
end if; -- check CPUID level
---------------------------------------------------------------------
-- With a CPUID level of 1 we can use the processor signature to --
-- determine it's exact type. --
---------------------------------------------------------------------
Signature := Intel_CPU.Signature;
----------------------------------------------------------------------
-- Ok, now we go into a lot of messy comparisons to get the --
-- processor type. For clarity, no attememt to try to optimize the --
-- comparisons has been made. Note that since Intel_CPU does not --
-- support getting cache info, we cannot distinguish between P5 --
-- and Celeron types yet. --
----------------------------------------------------------------------
-- x486SL
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0100# and
Signature.Model = 2#0100# then
Type_Found := True;
Ada.Text_IO.Put_Line ("x486SL processor");
end if;
-- x486DX2 Write-Back
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0100# and
Signature.Model = 2#0111# then
Type_Found := True;
Ada.Text_IO.Put_Line ("Write-Back Enhanced x486DX2 processor");
end if;
-- x486DX4
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0100# and
Signature.Model = 2#1000# then
Type_Found := True;
Ada.Text_IO.Put_Line ("x486DX4 processor");
end if;
-- x486DX4 Overdrive
if Signature.Processor_Type = 2#01# and
Signature.Family = 2#0100# and
Signature.Model = 2#1000# then
Type_Found := True;
Ada.Text_IO.Put_Line ("x486DX4 OverDrive processor");
end if;
-- Pentium (60, 66)
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0101# and
Signature.Model = 2#0001# then
Type_Found := True;
Ada.Text_IO.Put_Line ("Pentium processor (60, 66)");
end if;
-- Pentium (75, 90, 100, 120, 133, 150, 166, 200)
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0101# and
Signature.Model = 2#0010# then
Type_Found := True;
Ada.Text_IO.Put_Line
("Pentium processor (75, 90, 100, 120, 133, 150, 166, 200)");
end if;
-- Pentium OverDrive (60, 66)
if Signature.Processor_Type = 2#01# and
Signature.Family = 2#0101# and
Signature.Model = 2#0001# then
Type_Found := True;
Ada.Text_IO.Put_Line ("Pentium OverDrive processor (60, 66)");
end if;
-- Pentium OverDrive (75, 90, 100, 120, 133, 150, 166, 200)
if Signature.Processor_Type = 2#01# and
Signature.Family = 2#0101# and
Signature.Model = 2#0010# then
Type_Found := True;
Ada.Text_IO.Put_Line
("Pentium OverDrive cpu (75, 90, 100, 120, 133, 150, 166, 200)");
end if;
-- Pentium OverDrive processor for x486 processor-based systems
if Signature.Processor_Type = 2#01# and
Signature.Family = 2#0101# and
Signature.Model = 2#0011# then
Type_Found := True;
Ada.Text_IO.Put_Line
("Pentium OverDrive processor for x486 processor-based systems");
end if;
-- Pentium processor with MMX technology (166, 200)
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0101# and
Signature.Model = 2#0100# then
Type_Found := True;
Ada.Text_IO.Put_Line
("Pentium processor with MMX technology (166, 200)");
end if;
-- Pentium OverDrive with MMX for Pentium (75, 90, 100, 120, 133)
if Signature.Processor_Type = 2#01# and
Signature.Family = 2#0101# and
Signature.Model = 2#0100# then
Type_Found := True;
Ada.Text_IO.Put_Line
("Pentium OverDrive processor with MMX " &
"technology for Pentium processor (75, 90, 100, 120, 133)");
end if;
-- Pentium Pro processor
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0110# and
Signature.Model = 2#0001# then
Type_Found := True;
Ada.Text_IO.Put_Line ("Pentium Pro processor");
end if;
-- Pentium II processor, model 3
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0110# and
Signature.Model = 2#0011# then
Type_Found := True;
Ada.Text_IO.Put_Line ("Pentium II processor, model 3");
end if;
-- Pentium II processor, model 5 or Celeron processor
if Signature.Processor_Type = 2#00# and
Signature.Family = 2#0110# and
Signature.Model = 2#0101# then
Type_Found := True;
Ada.Text_IO.Put_Line
("Pentium II processor, model 5 or Celeron processor");
end if;
-- Pentium Pro OverDrive processor
if Signature.Processor_Type = 2#01# and
Signature.Family = 2#0110# and
Signature.Model = 2#0011# then
Type_Found := True;
Ada.Text_IO.Put_Line ("Pentium Pro OverDrive processor");
end if;
-- If no type recognized, we have an unknown. Display what
-- we _do_ know
if Type_Found = False then
Ada.Text_IO.Put_Line ("Unknown processor");
end if;
-----------------------------------------
-- Display processor stepping level. --
-----------------------------------------
Ada.Text_IO.Put_Line ("Stepping level:" & Signature.Stepping'Img);
---------------------------------
-- Display vendor ID string. --
---------------------------------
Ada.Text_IO.Put_Line ("Vendor ID: " & Intel_CPU.Vendor_ID);
------------------------------------
-- Get the processors features. --
------------------------------------
Features := Intel_CPU.Features;
-----------------------------
-- Check for a FPU unit. --
-----------------------------
if Features.FPU = True then
Ada.Text_IO.Put_Line ("Floating-Point unit available");
else
Ada.Text_IO.Put_Line ("no Floating-Point unit");
end if; -- check for FPU
--------------------------------
-- List processor features. --
--------------------------------
Ada.Text_IO.Put_Line ("Supported features: ");
-- Virtual Mode Extension
if Features.VME = True then
Ada.Text_IO.Put_Line (" VME - Virtual Mode Extension");
end if;
-- Debugging Extension
if Features.DE = True then
Ada.Text_IO.Put_Line (" DE - Debugging Extension");
end if;
-- Page Size Extension
if Features.PSE = True then
Ada.Text_IO.Put_Line (" PSE - Page Size Extension");
end if;
-- Time Stamp Counter
if Features.TSC = True then
Ada.Text_IO.Put_Line (" TSC - Time Stamp Counter");
end if;
-- Model Specific Registers
if Features.MSR = True then
Ada.Text_IO.Put_Line (" MSR - Model Specific Registers");
end if;
-- Physical Address Extension
if Features.PAE = True then
Ada.Text_IO.Put_Line (" PAE - Physical Address Extension");
end if;
-- Machine Check Extension
if Features.MCE = True then
Ada.Text_IO.Put_Line (" MCE - Machine Check Extension");
end if;
-- CMPXCHG8 instruction supported
if Features.CX8 = True then
Ada.Text_IO.Put_Line (" CX8 - CMPXCHG8 instruction");
end if;
-- on-chip APIC hardware support
if Features.APIC = True then
Ada.Text_IO.Put_Line (" APIC - on-chip APIC hardware support");
end if;
-- Fast System Call
if Features.SEP = True then
Ada.Text_IO.Put_Line (" SEP - Fast System Call");
end if;
-- Memory Type Range Registers
if Features.MTRR = True then
Ada.Text_IO.Put_Line (" MTTR - Memory Type Range Registers");
end if;
-- Page Global Enable
if Features.PGE = True then
Ada.Text_IO.Put_Line (" PGE - Page Global Enable");
end if;
-- Machine Check Architecture
if Features.MCA = True then
Ada.Text_IO.Put_Line (" MCA - Machine Check Architecture");
end if;
-- Conditional Move Instruction Supported
if Features.CMOV = True then
Ada.Text_IO.Put_Line
(" CMOV - Conditional Move Instruction Supported");
end if;
-- Page Attribute Table
if Features.PAT = True then
Ada.Text_IO.Put_Line (" PAT - Page Attribute Table");
end if;
-- 36-bit Page Size Extension
if Features.PSE_36 = True then
Ada.Text_IO.Put_Line (" PSE_36 - 36-bit Page Size Extension");
end if;
-- MMX technology supported
if Features.MMX = True then
Ada.Text_IO.Put_Line (" MMX - MMX technology supported");
end if;
-- Fast FP Save and Restore
if Features.FXSR = True then
Ada.Text_IO.Put_Line (" FXSR - Fast FP Save and Restore");
end if;
---------------------
-- Program done. --
---------------------
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Success);
exception
when others =>
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
raise;
end Check_CPU;