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130 MIDI Tool Box
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130 MIDI Tool Box.iso
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mpu401c
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cpu.asm
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Assembly Source File
|
1978-02-06
|
680b
|
40 lines
; Copyright (C) 1986 by M. J. Shannon, Jr.
; Permission to distribute for non-commercial uses granted as long as this
; notice is retained. Violators will be prosecuted.
title cpu assist for mpu
page 66,80
;These routines make up for a
;deficiency in the Lattice C library.
;Alas, messing around with the MPU-401
;requires that interrupts be turned on
;and off occasionally. Further, using
;the BIOS directly (via int86) also
;confuses the state of interrupts.
cpu_prog segment public para 'PROG'
public cli
public sti
assume cs:cpu_prog
cli proc far
cli
ret
cli endp
sti proc far
sti
ret
sti endp
cpu_prog ends
end