Interrups

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• External hardware - NON-MASKABLE INTERRUPT
• IRQ0 - SYSTEM TIMER
• IRQ0 relocated by DESQview
• IRQ0 relocated by DoubleDOS
• IRQ0 relocated by IBM 3278 emulation control program
• IRQ0 relocated by OS/2 v1.x
• IRQ1 - KEYBOARD DATA READY
• IRQ1 relocated by DoubleDOS
• IRQ1 relocated by IBM 3278 emulation control program
• IRQ1 relocated by OS/2 v1.x
• IRQ10 - RESERVED
• IRQ10 relocated by DESQview 2.26+
• IRQ11 - RESERVED
• IRQ11 relocated by DESQview 2.26+
• IRQ12 - POINTING DEVICE (PS)
• IRQ12 relocated by DESQview 2.26+
• IRQ13 - MATH COPROCESSOR EXCEPTION (AT and up)
• IRQ13 relocated by DESQview 2.26+
• IRQ14 - HARD DISK CONTROLLER OPERATION COMPLETE (AT and later)
• IRQ14 relocated by DESQview 2.26+

• IRQ15
  • POWER CONSERVATION (Compaq SLT/286)
  • RESERVED (AT,PS)
  • IRQ15 - SECONDARY IDE CONTROLLER - OPERATION COMPLETE

• IRQ15 relocated by DESQview 2.26+

• IRQ2
  • LPT2 (PC), VERTICAL RETRACE INTERRUPT (EGA,VGA)
  • ROLAND MPU MIDI INTERFACE
  • IRQ2 - Tandy 1000-series HARD DISK

• IRQ2 relocated by DESQview
• IRQ2 relocated by DoubleDOS
• IRQ2 relocated by IBM 3278 emulation control program, OS/2 v1.x
• IRQ3 - SERIAL COMMUNICATIONS (COM2)
• IRQ3 relocated by DESQview
• IRQ3 relocated by DoubleDOS
• IRQ3 relocated by IBM 3278 emulation control program, OS/2 v1.x
• IRQ4 - SERIAL COMMUNICATIONS (COM1)
• IRQ4 relocated by DESQview
• IRQ4 relocated by DoubleDOS
• IRQ4 relocated by IBM 3278 emulation control program, OS/2 v1.x

• IRQ5
  • FIXED DISK (PC,XT), LPT2 (AT), reserved (PS/2)
  • IRQ5 - Tandy 1000 60 Hz RAM REFRESH

• IRQ5 relocated by DESQview
• IRQ5 relocated by DoubleDOS
• IRQ5 relocated by IBM 3278 emulation control program, OS/2 v1.x
• IRQ6 - DISKETTE CONTROLLER
• IRQ6 relocated by DESQview
• IRQ6 relocated by DoubleDOS
• IRQ6 relocated by IBM 3278 emulation control program, OS/2 v1.x
• IRQ7 - PARALLEL PRINTER
• IRQ7 relocated by DESQview
• IRQ7 relocated by DoubleDOS
• IRQ7 relocated by IBM 3278 emulation control program, OS/2 v1.x
• IRQ8 - CMOS REAL-TIME CLOCK
• IRQ8 relocated by DESQview 2.26+
• IRQ9 - REDIRECTED TO INT 0A BY BIOS
• IRQ9 relocated by DESQview 2.26+

• Screen Thief v1.00
  • RELOCATED IRQ0
  • RELOCATED IRQ1
  • RELOCATED IRQ2
  • RELOCATED IRQ3
  • RELOCATED IRQ4
  • RELOCATED IRQ5
  • RELOCATED IRQ6
  • Screen Thief v1.00 - RELOCATED IRQ7

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