Webstch buffer,x store character in buffer tixr t loop unless max reached jlt rloop has been reached exit stx length save record length rsub return to caller use cdata input byte x'f2' … WebSTCH STR1,X TIX TWENTY JLT LOOP : : STR1 RESW 20 BLANK BYTE C ZERO WORD 0 TWENTY WORD 20 8. Write a sequence of instructions for SIC/XE to clear a 20-byte string to all blanks. Use immediate addressing and register-to-register instructions to make the process as efficient as possible. Assembly Code: LDT LDX LOOP STCH TIXR JLT : : STR1 …
Machine Dependent Assembler Features - SlideServe
Web104E STCH BUFFER,X => 57C003. In this instruction. opcode + n,i + x,b,p,e + disp = 57C003. I already know translate 57. But I don't know how to make "x,b,p,e => C" and "disp => 003" I … Presumably the X operator of your assembler means emit the byte with the given hex value. STCH BUFFER, X 549039 BUFFER is 1039, and STCH in mnemonic is 54, but shouldn't it be 541039? The address is the low 15 bits only. Bit #15 is used as a flag indicating indexed addressing mode, hence 1039 becomes 9039. Share Improve this answer Follow huanan seafood and wildlife market
c - Find addresses of a buffer - Stack Overflow
Web160 stch buffer,x: 165 tix maxlen: 170 jlt rloop: 175 exit stx length: 180 rsub: 185 input byte x'f1' 190 maxlen word 4096: 195 . 200 . sub read: 205 . 210 wrrec ldx zero: 215 wloop td output: 220 jeq wloop: 225 ldch buffer,x: 230 wd output: 235 tix length: 240 jlt wloop: 245 rsub: 250 output byte x'05' 255 end first: WebOct 13, 2013 · Example of Instruction Assemble STCH BUFFER,X 8 opcode (54)16 1 x 1 (001)2 549039 15 address m (039)16 Forward reference Chap 15. Difficulties: Forward Reference Forward reference: reference to a label that is defined later in the program. Webbuffer resb 4096.. comment. rdrec ldx zero: lda zero: rloop td input: jeq rloop: rd input: comp zero: jeq exit: stch buffer,x: tix maxlen: jlt rloop: exit stx length: rsub: input byte x'f1' maxlen word 4096.. comment. wrrec ldx zero: wloop td output: jeq wloop: ldch buffer,x: wd output: tix length: jlt wloop: rsub: output byte x'05' end first hof in aadhar form