ami5.txt

一本bios的手册,经典的东西.

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AMI-BIOS CHECK-POINT, (C)1991 American Megatrends Inc.,All Rights Reserved
1346 Oakbrook Dr. #120. GA-30093. Phone:[phone], Fax:[phone]
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Checkpoint Codes for AMI BIOS Plus 
       
POSTcode       TEST-DESCRIPTION

  01           NMI disabled, 80286 register test begin.
                   
  02           80286 register test complete.
         
  03           ROM checksum OK.
                 
  04           8259 initialization OK.
          
  05           CMOS pending interrupt disabled.
   
  06           Video system disabled, system timer counting OK.
         
  07           8253 channel 2 test OK.
  
  08           Channel 2 of delta count test OK.
  
  09           Channel 1 of delta count test OK.
  
  0A           Channel 0 of delta count test OK.
  
  0B           Parity status cleared.
            
  0C           Refresh system timer test OK.
       
  0D           Refresh link toggling OK.
         
  0E           Refresh duty cycle test (Period On/Off 50%) OK.
      
  10           Check refresh on, start 64k RAM test.
        
  11           Address line test OK.
  
  12           64k base memory test OK.
  
  13           Interrupt vectors initialized.
  
  14           8042 keyboard controller test OK.
  
  15           CMOS read/write test OK.
  
  16           CMOS checksum/battery check OK.
  
  17           Monochrome mode set OK.
  
  18           Color mode set OK.
  
  19           Begin search for optional Video ROM.
  
  1A           Optional video ROM control check OK.
  
  1B           Display memory read/write test OK.
     
  1C           Display memory read/write test for alternate 
               display memory OK.
                   
  1D           Video retrace check OK.
  
  1E           Global equipment byte set for video check OK.
  
  1F           Mode set call for monochrome/color OK.
  
  20           Video test OK.
  
  21           Video display OK.
  
  22           Power on message display OK.
  
  30           Begin virtual mode memory test.
  
  31           Virtual mode memory test running.
  
  32           Processor in virtual mode.
  
  33 - 34      Memory address line test.

  35           Memory below 1 MB calculated.   
  
  36           Memory size computation check OK.
  
  37           Memory test in progress.
  
  38           Memory initialisation complete below 1 MB.
  
  39           Memory initialisation complete above 1 MB.
  
  3A           Display memory size.
  
  3B           About to start below 1 MB memory test.
  
  3C           Memory test below 1 MB OK.
  
  3D           Memory test above 1 MB OK.
  
  3E           Begin shutdown into real mode.
  
  3F           Shutdown successful, now in real mode.
  
  40           About to disable gate A20 adress line.
  
  41           Gate A20 line disable check OK.
  
  42           Begin DMA controller test.
  
  4E           Address line test OK.
                   
  4F           Processor in real mode after shutdown.
  
  50           DMA page register test OK.
  
  51           DMA unit-1 base register test.
  
  52           DMA unit-1 base register test OK.
  
  53           DMA unit-2 base register test OK.
  
  54           Begin F/F latch test for unit-1.
  
  55           F/F latch test check OK for both units.
      
  56           DMA units 1 & 2 programmed OK.
  
  57           8259 initialization complete.
  
  58           8259 mask register check OK.
  
  59           Master 8259 mask register OK, begin slave test.
  
  5A           Begin timer check and keyboard interrupt level.
  
  5B           Timer interrupt OK.
  
  5C           Begin keyboard interrupt test.
  
  5D           ERROR! Timer/Keyboard not a proper interrupt level.
    
  5E           8259 interrupt controller error.
  
  5F           8259 interrupt controller check OK.
  
  70           Start of keyboard test.
  
  71           Keyboard BAT test OK.
  
  72           Keyboard test OK.
  
  73           Keyboard global data initialisation OK.
  
  74           Begin floppy drive setup.
  
  75           Floppy drive setup test OK.
  
  76           Begin hard disk setup.
  
  77           Hard disk setup OK.
  
  79           Begin timer data area initialization.
  
  7A           Verify CMOS battery power.
  
  7B           CMOS battery power OK.
  
  7D           Begin diagnostics analysis of test results for memory.
  
  7E           CMOS memory size update OK.
  
  7F           Begin search for optional ROM at C000:0000h.
  
  80           Keyboard sense to enable setup program.
  
  81           Optional ROM control check OK.
  
  82           Printer global data initialisation OK.
  
  83           RS-232 global data initialiasation OK.
  
  84           NPU (80287) check/test OK.
  
  85           Begin display soft error message.
  
  86           Begin to give control to System ROM at E000:0000h.
  
  87           System ROM E000:0000h check.
  
  00           Give control to INT 19 boot loader.