DOS ain't dead - Basics of interrupt chaining?

Basics of interrupt chaining? (Developers)

posted by Japheth , Germany (South), 13.12.2012, 21:31

[quote]
sb_interrupt proc
jmp far ptr irq_handler

irq_handler dw 0, 0
sb_interrupt endp
[/quote]

I'd say it should be either
sb_interrupt proc jmp dword ptr cs:[irq_handler] irq_handler dw 0, 0 sb_interrupt endp
or
sb_interrupt proc db 0EAh ;opcode for jmp SSSS:0000 irq_handler dw 0, 0 sb_interrupt endp

---
MS-DOS forever!

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Complete thread:

Basics of interrupt chaining? - myrkraverk, 13.12.2012, 19:39 (Developers)
- Basics of interrupt chaining? - myrkraverk, 13.12.2012, 20:19
- Basics of interrupt chaining? - Japheth, 13.12.2012, 21:31
  - And now: int 0x21 in hw interrupt handler? - myrkraverk, 14.12.2012, 02:58
    - And now: int 0x21 in hw interrupt handler? - Japheth, 14.12.2012, 06:10
    - And now: int 0x21 in hw interrupt handler? - tom, 14.12.2012, 18:25
    - And now: int 0x21 in hw interrupt handler? - bretjohn, 15.12.2012, 01:29
      - And now: int 0x21 in hw interrupt handler? - myrkraverk, 15.12.2012, 15:52
        And now: int 0x21 in hw interrupt handler? - bretjohn, 17.12.2012, 18:08
        And now: int 0x21 in hw interrupt handler? - myrkraverk, 18.12.2012, 20:16
        And now: int 0x21 in hw interrupt handler? - tom, 19.12.2012, 15:54
- Basics of interrupt chaining? - bretjohn, 14.12.2012, 19:43