10
20
30 :
40 DEFFNDis_Name(cpu%)="65x02"
50 DEFFNDis_Code(cpu%,Ptr%,Data%):LOCAL op%,ins%,md%,b0%,num%
60 num%=1:op%=?Data%:ins%=op%DIV32:md%=(op%AND31)DIV4:b0%=(op%AND3)
70 X%!0=0:$(X%+4)=FN_diss:X%?3=num%:=num%
80 DEFFN_diss
90 IF(op%AND&F)=8:=MID$("PHPCLCPLPSECPHACLIPLASEIDEYTYATAYCLVINYCLDINXSED",1+3*(op%DIV16),3)
100 IF(op%AND&8F)=&8A:=MID$("TXATXSTAXTSXDEXPHXNOPPLX",3*(op%DIV16)-23,3)
110 IFop%=&20:="JSR "+FNmde(3)
120 IF(op%AND&9F)=0:X%?2=(op%AND64):=MID$("BRK***RTIRTS",ins%*3+1,3)
130 IF(op%AND&DF)=&5A:=MID$("PHYPLY",ins%*3-5,3)
140 IFop%=&89:="BIT "+FNmde(2)
150 IFb0%=1:=FNalu(ins%)+" "+FNmde(md%)
160 IF(op%AND31)=&12:=FNalu(ins%)+" "+FNmde(8)
170 IF(op%AND&EF)=&64:="STZ "+FNmde(md%)
180 IF(op%AND&FD)=&9C:="STZ "+FNmde(b0%*2+3)
190 IF(op%AND&D7)=&96:=FNrot(ins%)+" "+FNmde(md%AND3)+",Y"
200 IF(op%AND7)=6:=FNrot(ins%)+" "+FNmde(md%)
210 IF(op%AND&1F)=16:num%=2:="B"+MID$("PLMIVCVSCCCSNEEQ",1+2*ins%,2)+" "+FNjr(Data%?1)
220 IF(op%AND&8F)=10:=FNrot((ins%+(md%AND4)*1.5)EOR((md%>4)AND1))+" A"
230 IF(op%AND&E7)=4:="T"+MID$("SR",1+(md%DIV4),1)+"B "+FNmde(md%AND3)
240 IF(op%AND&D3)=&C0:=FNbxy(ins%)+" "+FNmde(((md%EOR3)-1)AND3)
250 IF(op%AND&E7)=&24:="BIT "+FNmde(md%)
260 IF(op%AND&C7)=&84:=FNbxy(ins%)+" "+FNmde(md%)
270 IF(op%AND&FD)=&A0:="LD"+MID$("YX",1+((op%AND2)DIV2),1)+" "+FNmde(2)
280 IF(op%AND&CF)=&4C:IFop%<>&5C:X%?2=64:="JMP "+LEFT$("(",op%>&5F)+FNmde(md%)+LEFT$(")",op%>&5F)
290 IFop%=&80:num%=2:X%?2=64:="BRA "+FNjr(Data%?1)
300 X%?2=128:="EQUB &"+FNh0(op%,2)
310 :
320 DEFFNalu(A%)=MID$("ORAANDEORADCSTALDACMPSBC",A%*3+1,3)
330 DEFFNrot(A%)=MID$("ASLROLLSRRORSTXLDXDECINC",A%*3+1,3)
340 DEFFNbxy(A%)=MID$("***BIT***STZSTYLDYCPYCPX",A%*3+1,3)
350 :
360 DEFFNmde(A%):num%=2:IFA%=2:="#&"+FNh0(Data%?1,2)
370 IF(A%AND2):num%=3:="&"+FNh0(Data%!1,4)+LEFT$(",X",A%=7)+LEFT$(",Y",A%=6)
380 IF(A%AND1):="&"+FNh0(Data%?1,2)+LEFT$(",X",A%=5)
390 ="(&"+FNh0(Data%!1,2)+LEFT$(",X",A%=0)+")"+LEFT$(",Y",A%=4)
400 :
410 DEFFNjr(A%):IFA%<128:="&"+FNh0(Ptr%+A%+2,4) ELSE ="&"+FNh0(Ptr%+A%+2-256,4)