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  Hyper Operating System V4  ITRON4.0 Real-Time OS                      
    Intel IA32  ɥ                                              
                                                                              
                                       Copyright (C) 1998-2002 by Project HOS 
                                       http://sourceforge.jp/projects/hos/    
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1. 

  ܥɥȤ Hyper Operating System V4ʰʲ HOS-V4ˤ
Intel IA32(PC/ATߴѤθͭʬˤĤƤ򵭺ܤޤ



2. 饤֥makeˡ

2.1. ġν

  IA32ǤHOS-V4Ѥ硤i386-elfΥХʥ
ΥĶۤ뤳Ȥ򤪴ᤷޤ

http://sourceforge.jp/projects/hos/docman/ ˤ
LinuxǤIA32(Intel Architecture 32)Ķۼ
Ȥʸ򻲹ͤGNUΥѥĶۤƤ

2.2.饤֥makeˡ

2.1. Ǻѥѥġ뷲PATH̤ǡ
ʲκȤԤޤ

  (1) lib/ia32/ia32gcc˰ܤ롥
  (2) make -f i386-elf.mak ޥɤȯԤ롥 

2.3.ץץμ¹ˡ
HOS-V4Υ֤ƱƤIA32ѤΥץץ
ϡפLinuxǥȥӥ塼ǺѤƤGRUB
Grand Unified Boot Loaderˤ鵯ưǽʥե
ʤäƤޤGRUBѤƥ֡ȤĶǤС
ХʥGRUBkernelץǥͥ˻ꤹ뤳Ȥǡ
HOS-V4 IA32Ǥư뤳ȤǽǤ

ޤץեåԡ鵯ư뤿ΥץȤ
°Ƥޤ 

ȤơRedHat Linux 8.0, HOS-V4Υ֤ƱƤIA32
ѤΥץץեåԡ鵯ư뤿μʲ˼
ޤ

  (1) ե졼 
      configǥ쥯ȥ˰ܤ 
         make -f gcc.mak 
     ޥɤȯԤ 
  (2) ץץι 
      sample/ia32gccǥ쥯ȥ˰ܤ 
         make -f i386-elf.mak 
     ޥɤȯԤ 
  (3) ֡ȥǥ 
      sample/ia32gccǥ쥯ȥ 
      sample.bin 
     Ƥ뤳Ȥǧǡ 
     ʲa)b)Ԥޤ 
     a) ΥեåԡǥFDɥ饤֤ 
         
     b) make -f i386-elf.mak disk 
     ȥޥɤ 
  (3)Ǻǥ򤤤PCư롥 

3. IA32ͭδؿ
3.1. ߥޥ/ؿ
  ¿ųߤ˺ݤơߥޥꤹؿ
HOS-V4/IA32ȼ˼Ƥޤ


    ER chg_imsk(IMSK imsk)          ߥޥͤѹ
    ER get_imsk(IMSK *p_imsk)       ߥޥͤλ

HOS-V4 IA32ǤǤ, IMSK16ӥåȤʤȤƤޤ
IA32ܤPC/ATߴǤϡޥȥ졼֤ι2
ߥȥ餬ܤƤޤ

  HOS-V4 IA32ǤǤϡIMSKͤξ8ӥåȤ˥ޥȥ顤
8ӥåȤ˥졼֥ȥγߥޥͤ
ƤƤޤ

IMSKγƥӥåȤΰ̣ϰʲΤ褦ˤʤޤ
	1) 0.. 7ӥåܡ졼֥ȥγߥޥ
	2) 8..15ӥåܡޥȥγߥޥ

get_imskƤӽФȤǸߤΥޥͤ嵭եޥåȤ
ޤޤߤޥIRQбӥåȤ
ΩƤchg_imskƤӽФȤǳߥޥꤹ뤳ȤǤޤ.

IRQIMSKΥӥåȰ, ŵŪPC/ATˤơ
IRQγߤѤǥХбطˤĤƤ,
ϿA PC/ATߴǤγߡפ򻲾ȤƤ


3.2. ߥޥؿ

HOS-V4 IA32Ǥ,   IMSK10ӥåܤΩäƤʤȤǧơ
set_imskƤӽФ褦ˤƤ
ϡPC/ATߴ߷׾塤ޥγߥȥ
³ʬޥȥ졼֤γߡIRQ815γߡˤ
夬ʤʤ뤿Ǥ

4. ATT_ISRˤֹˡ

HOS-V4 IA32ǤϡATT_ISRγֹǥХѤߤ
IRQֹ0x20ä(٥ֹ)ǻꤷޤ
IRQֹŵŪPC/ATˤƤIRQѤǥХȤбط
ˤĤƤϡϿA򻲾Ȥ  

ϿA PC/ATߴǤγ

٥ֹ(16)  IRQ IMSKΥӥåȰ  ǥХ
0x20		    0  8	 	  ƥå(i8254 PIT)
0x21		    1  9 		  ܡ
0x22		    2 10		  
					  ʥ졼֥ȥؤ³
0x23		    3 11		  COM2
0x24		    4 12 	 	  COM1
0x25		    5 13		  ͽISA/PCIǻѡ
0x26		    6 14		  եåԡǥȥ
0x27		    7 15		  ѥݡ
0x28		    8  0		  RTC(Real Time Clock)
0x29		    9  1		  IRQ2γߤΥ쥯
0x2a		   10  2		  ͽISA/PCIǻѡ
0x2b		   11  3		  ͽISA/PCIǻѡ
0x2c		   12  4		  ޥPS/2)
0x2d		   13  5		  ͱ黻ץå
0x2e		   14  6		  IDEʥץ饤ޥ
0x2f		   15  7		  IDEʥ


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 Copyright (C) 1998-2002 by Project HOS                                       
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