transcribed from 06-5-12.pdf

scans/bl.s

@@ -0,0 +1,194 @@
+" bl
+
+jmp start
+
+.array: .+1
+   s 2
+   n 8
+   n 7
+   -1
+   tad sp i
+   cma
+   tad lastv
+   dac lastv
+   imq
+   lac sp
+   tad d1
+   dac sp i
+   isz sp
+   lacq
+   dac sp i
+   isz sp
+   jmp fetch
+
+.read: .+1
+   s 2
+   n 8
+   n 7
+   lac sp
+   tad d1
+   dac sp i
+   isz sp
+   jms getc
+   dac sp i
+   isz sp
+   jmp fetch
+
+.write: .+1
+   s 2
+   n 8
+   n 7
+   lac sp i
+   dac t1
+   lrss 9
+   jms putc
+   lac t1
+   jms putc
+   jmp fetch
+
+.flush: .+1
+   n 8
+   n 7
+   jms flush
+   jmp fetch
+
+getc: 0
+   lac iflg
+   dzm iflg
+   sza
+   jmp getc i
+   lac cibufp
+   sad eibufp
+   jmp 1f
+   lac cibufp i
+   and o777
+   dac iflg
+   lac cibufp i
+   isz cibufp
+   lrss 9
+   jmp getc i
+1:
+   lac .fin
+   sys read; ibufp: ..; 64
+   sna spa
+   jmp 1f
+   tad ibufp
+   dac eibufp
+   lac ibufp
+   dac cibufp
+   jmp getc+1
+1:
+   lac 0o4
+   jmp getc i
+
+putc: 0
+   and 0777
+   sna
+   jmp putc i
+   imq
+   lac oflg
+   sza
+   jmp 1f
+   lacq
+   alss 9
+   dac cobufp i
+   dac oflg
+   jmp putc i
+1:
+   lac cobufp i
+   omq
+   dac cobufp i
+   dac cobufp i
+   dzm oflg
+   isz cobufp
+   lac cobufp
+   sad eobufp
+   skp
+   jmp putc i
+   lac .fout
+   sys write; obufp: ..; 64
+   lac obufp
+   dac cobufp
+   jmp putc i
+
+stop:
+   jms flush
+   las
+   sma
+   sys save
+   sys exit
+
+flush: 0
+   lac oflg
+   sza
+   isz cobufp
+   lac cobufp
+   cma
+   tad obufp
+   cma
+   sna
+   jmp flush i
+   dac 1f+1
+   lac obufp
+   dac 1f
+   lac .fout
+   sys write; 1: :.; ..
+   lac obufp
+   dac cobufp
+   dzm oflg
+   jmp flush i
+
+initio: 0
+   lac 017777 i
+   sad d4
+   jmp 2f
+   sad d8
+   jmp 1f
+
+   law 9
+   tad 017777
+   dac .+3
+   law 017
+   sys creat; ..
+   spa
+   jmp stop
+   dac .fout
+1:
+   law 5
+   tad 017777
+   dac .+2
+   sys open; ..; 0
+   spa
+   jmp stop
+   dac .fin
+2:
+   lac lastv
+   dac eibufp
+   dac cibufp
+   -64
+   tad lastv
+   dac lastv
+   dac ibufp
+   lac lastv
+   dac eobufp
+   -64
+   tad lastv
+   dac lastv
+   dac obufp
+   dac cobufp
+   dzm oflg
+   jmp initio i
+
+.fin: 0
+.fout: 1
+eibufp: 0
+cibufp: 0
+iflg: 0
+eobufp: 0
+cobufp: 0
+oflg: 0
+lastv: 017770
+
+o777: 0777
+d4:o4: 4
+d8: 8