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https://github.com/SEPPDROID/Digital-Research-Source-Code.git
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41 lines
1.0 KiB
Plaintext
41 lines
1.0 KiB
Plaintext
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;*****************************************************
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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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mov al,io_stopclk ! call xiosif
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tick: ;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 mpmint
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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_empty
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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 next_tick
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; our process is done waiting
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enddelay: 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_empty
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cmp p_wait[si],0 ! jne next_tick
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mov bx,si ! jmps enddelay
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next_tick: popf ! jmps tick
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drl_empty:
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popf ! jmps notick |