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[/] [eco32/] [trunk/] [fp/] [implementation/] [mmix/] [traffic.mms] - Blame information for rev 315

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Line No. Rev Author Line
1 15 hellwig
* Traffic Signal Problem
2
rate GREG 100 % ridiculously small, for testing (shd be 250MHz)
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t IS $255
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Sensor_Buf IS Data_Segment
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     GREG Sensor_Buf
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       LOC #100
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Lights  IS 3
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Sensor IS 4
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%Lights_Name BYTE "/dev/lights",0
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%Sensor_Name BYTE "/dev/sensor",0
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Lights_Name BYTE "lights",0     (temporary name)
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Sensor_Name BYTE "sensor",0    (temporary name)
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Lights_Args OCTA Lights_Name,BinaryWrite
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Sensor_Args OCTA Sensor_Name,BinaryRead
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Read_Sensor OCTA Sensor_Buf,1
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Boulevard BYTE #77,0 DelMar green, WALK; Berkly red, DONT
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          BYTE #7f,0 DelMar green, DONT; Berkly red, DONT
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          BYTE #73,0 DelMar green, off;  Berkly red, DONT
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          BYTE #bf,0 DelMar amber, DONT; Berkly red, DONT
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Avenue    BYTE #dd,0 DelMar red, DONT; Berkly green, WALK
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          BYTE #df,0 DelMar red, DONT; Berkly green, DONT
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          BYTE #dc,0 DelMar red, DONT; Berkly green, off
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          BYTE #ef,0 DelMar red, DONT; Berkly amber, DONT
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goal GREG  % transition time for lights
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Main GETA t,Lights_Args
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     TRAP 0,Fopen,Lights
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     GETA t,Sensor_Args
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     TRAP 0,Fopen,Sensor
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     GET  goal,rC
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     ANDNMH goal,#ffff   % temporary patch
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     JMP  2F
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      GREG @
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delay_go GREG
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Delay GET t,rC
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     ANDNMH t,#ffff   % temporary patch
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      SUBU t,t,goal  NB: not CMPU
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      PBN  t,Delay
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      GO  delay_go,delay_go,0
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flash_go GREG
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n     GREG
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green GREG
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temp  GREG
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Flash SET  n,8
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1H    ADD  t,green,2*1
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      TRAP 0,Fputs,Lights DONT WALK
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      ADD  temp,goal,rate
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      SR   t,rate,1
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      ADDU goal,goal,t
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      GO   delay_go,Delay
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      ADD  t,green,2*2
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      TRAP 0,Fputs,Lights off
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      SET  goal,temp
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      GO   delay_go,Delay
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      SUB   n,n,1
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      PBP   n,1B
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      ADD  t,green,2*1
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      TRAP 0,Fputs,Lights DONT WALK
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      MUL  t,rate,4
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      ADDU goal,goal,t
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      GO   delay_go,Delay
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      ADD  t,green,2*3
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      TRAP 0,Fputs,Lights DONT WALK, amber
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      GO   flash_go,flash_go,0
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Wait  GET  goal,rC
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     ANDNMH goal,#ffff   % temporary patch
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1H    GETA t,Read_Sensor
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      TRAP 0,Fread,Sensor
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      LDB  t,Sensor_Buf
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      BZ   t,Wait
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      GETA green,Boulevard
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      GO   flash_go,Flash
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      MUL   t,rate,8
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      ADDU  goal,goal,t
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      GO   delay_go,Delay
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      GETA  t,Avenue
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      TRAP  0,Fputs,Lights
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      MUL    t,rate,8
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      ADDU  goal,goal,t
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      GO   delay_go,Delay
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      GETA  green,Avenue
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      GO   flash_go,Flash
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      GETA  t,Read_Sensor
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      TRAP  0,Fread,Sensor % clear redundant signal
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      MUL   t,rate,5
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      ADDU  goal,goal,t
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      GO   delay_go,Delay
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2H    GETA  t,Boulevard
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      TRAP  0,Fputs,Lights
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      MUL   t,rate,18
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      ADDU  goal,goal,t
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      GO   delay_go,Delay
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      JMP   1B

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