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https://github.com/SEPPDROID/Digital-Research-Source-Code.git
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48 lines
1.1 KiB
Plaintext
48 lines
1.1 KiB
Plaintext
;*****************************************************
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;*
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;* TICK Process
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;*
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;*****************************************************
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;======
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notick: ;NO ONE ON DELAY LIST
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;======
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mov bx,rlr ! mov es,p_uda[bx]
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mov u_wrkseg,ds
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;if mpm ;FIX 6 - DH - 14APR82
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; mov al,io_stopclk ! call xiosif
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;endif ;FIX 6 - DH - 14APR82
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;if ccpm ;FIX 6 - DH - 14APR82
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mov tick,false ;FIX 6 - DH - 14APR82
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;endif ;FIX 6 - DH - 14APR82
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tick_l: ;SOMEONE MAY BE ON DELAY LIST
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;------
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; flag wait on the TICK flag
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mov dx,flag_tick ! mov cx,f_flagwait
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int osint
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; see if anyone delaying
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pushf ! cli
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mov bx,dlr
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cmp bx,0 ! jz drl_e
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; decrement # of ticks to wait
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; see if done waiting
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dec p_wait[bx] ! jnz n_tck
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; our process is done waiting
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ede: mov si,p_link[bx] ! mov dlr,si
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mov p_stat[bx],ps_run
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mov ax,drl ! mov p_link[bx],ax
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mov drl,bx
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cmp si,0 ! je drl_e
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cmp p_wait[si],0 ! jne n_tck
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mov bx,si ! jmps ede
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n_tck: popf ! jmps tick_l
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drl_e:
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popf ! jmps notick
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