2.11BSD#431 - /usr/src/games/pdp/etc.s

   1: / etc.s -- common code
   2: 
   3: .globl  _signal
   4:         mov     $done,-(sp)
   5:         mov     $2,-(sp)
   6:         jsr     pc,_signal
   7:         cmp     (sp)+,(sp)+
   8:         jmp     around
   9: 
  10: done:
  11: .globl  _exit
  12:         jsr     pc,nline
  13:         jsr     pc,_exit
  14: 
  15: mesg:
  16:         movb    (r5)+,r0
  17:         beq     1f
  18:         jsr     pc,putc
  19:         br      mesg
  20: 1:
  21:         inc     r5
  22:         bic     $1,r5
  23:         rts     r5
  24: 
  25: quest:
  26:         jsr     pc,getc
  27:         cmp     r0,$'y
  28:         bne     1f
  29:         tst     (r5)+
  30: 1:
  31:         cmp     r0,$'\n
  32:         beq     1f
  33:         jsr     pc,flush
  34: 1:
  35:         rts     r5
  36: 
  37: getc:
  38: .globl  _read
  39:         mov     $1,-(sp)
  40:         mov     $ch,-(sp)
  41:         clr     -(sp)
  42:         jsr     pc,_read
  43:         add     $6,sp
  44:         bes     done
  45:         tst     r0
  46:         beq     done
  47:         mov     ch,r0
  48:         rts     pc
  49: 
  50: 0:      0
  51: print:
  52: .globl  _open
  53:         mov     r5,0b
  54:         mov     $0b,-(sp)
  55:         mov     $0,-(sp)
  56:         jsr     pc,_open;
  57:         cmp     (sp)+,(sp)+
  58:         bes     1f
  59:         mov     r0,r1
  60: 2:
  61: .globl  _read
  62:         mov     $1,-(sp)
  63:         mov     $ch,-(sp)
  64:         mov     r1,-(sp)
  65:         jsr     pc,_read
  66:         add     $6,sp
  67:         tst     r0
  68:         beq     2f
  69:         mov     ch,r0
  70:         jsr     pc,putc
  71:         br      2b
  72: 2:
  73: .globl  _close
  74:         mov     r1,-(sp)
  75:         jsr     pc,_close
  76:         tst     (sp)+
  77: 1:
  78:         tstb    (r5)+
  79:         bne     1b
  80:         inc     r5
  81:         bic     $1,r5
  82:         rts     r5
  83: 
  84: nline:
  85:         mov     $'\n,r0
  86: 
  87: putc:
  88: .globl  _write
  89:         mov     r0,ch
  90:         mov     $1,-(sp)
  91:         mov     $ch,-(sp)
  92:         mov     $1,-(sp)
  93:         jsr     pc,_write
  94:         add     $6,sp
  95:         rts     pc
  96: 
  97: decml:
  98:         mov     r1,-(sp)
  99:         jsr     pc,1f
 100:         mov     (sp)+,r1
 101:         rts     pc
 102: 
 103: 1:
 104:         mov     r0,r1
 105:         clr     r0
 106:         div     $10.,r0
 107:         mov     r1,-(sp)
 108:         tst     r0
 109:         beq     1f
 110:         jsr     pc,1b
 111: 1:
 112:         mov     (sp)+,r0
 113:         add     $'0,r0
 114:         jsr     pc,putc
 115:         rts     pc
 116: 
 117: flush:
 118:         jsr     pc,getc
 119:         cmp     r0,$'\n
 120:         bne     flush
 121:         rts     pc
 122: 
 123: rand:
 124: .globl  _time
 125:         mov     r1,-(sp)
 126:         tst     randx
 127:         bne     1f
 128:         clr     -(sp)
 129:         jsr     pc,_time
 130:         tst     (sp)+
 131:         mov     r1,randx
 132:         bis     $1,randx
 133: 1:
 134:         mov     randx,r0
 135:         mul     $15625.,r0
 136:         mov     r1,randx
 137:         ashc    $-2,r0
 138:         clr     r0
 139:         div     (r5)+,r0
 140:         mov     r1,r0
 141:         mov     (sp)+,r1
 142:         rts     r5
 143: 
 144: ch:     0
 145: randx:  0
 146: around:

Defined functions