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    Length: 768 (0x300)
    Types: TextFile
    Names: »ZNULCP.ZAS«

└─⟦63c65de3f⟧ Bits:30009789/_.ft.Ibm2.50007335.imd Mogens Pelles Zilog 80,000 / EOS projekt
    └─⟦this⟧ »ZNULCP.ZAS« 

TextFile

$title 'Return to Host CPU Routine'
;
; RUN_HOST - Null routine to return to
;  the host CPU.
; should be patched into ZEX following
; 8080 routines (SETUPZ & RUNZ)
;
; CP/M Version 1.1
;

$module RUN_HOST

$list off
$include 'ZEXCP.LIB'
$list on

	GLOBAL	RUN_HOST

$asect RUN_HOST_VECTOR
$org HOSTZ

	DW	RUN_HOST	; Vector to Z-8000 routine

$psect RUN_HOST

RUN_HOST:
;
; Code which follows should
;  switch the bus master from the Z-8000 to the host
;  CPU (8080 type).
;  Z-8000 execution should be suspended until the host
;  calls the 8080 RUNZ routine.
;  (Note this routine must be called in system mode)
;
	RET			; Return when re-started

	END
«eof»