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8.14.4 Opcodes

For detailed information on the Z8000 machine instruction set, see Z8000 Technical Manual.

The following table summarizes the opcodes and their arguments:

rs 16 bit source register rd 16 bit destination register rbs 8 bit source register rbd 8 bit destination register rrs 32 bit source register rrd 32 bit destination register rqs 64 bit source register rqd 64 bit destination register addr 16/24 bit address imm immediate data adc rd,rs clrb addr cpsir @rd,@rs,rr,cc adcb rbd,rbs clrb addr(rd) cpsirb @rd,@rs,rr,cc add rd,@rs clrb rbd dab rbd add rd,addr com @rd dbjnz rbd,disp7 add rd,addr(rs) com addr dec @rd,imm4m1 add rd,imm16 com addr(rd) dec addr(rd),imm4m1 add rd,rs com rd dec addr,imm4m1 addb rbd,@rs comb @rd dec rd,imm4m1 addb rbd,addr comb addr decb @rd,imm4m1 addb rbd,addr(rs) comb addr(rd) decb addr(rd),imm4m1 addb rbd,imm8 comb rbd decb addr,imm4m1 addb rbd,rbs comflg flags decb rbd,imm4m1 addl rrd,@rs cp @rd,imm16 di i2 addl rrd,addr cp addr(rd),imm16 div rrd,@rs addl rrd,addr(rs) cp addr,imm16 div rrd,addr addl rrd,imm32 cp rd,@rs div rrd,addr(rs) addl rrd,rrs cp rd,addr div rrd,imm16 and rd,@rs cp rd,addr(rs) div rrd,rs and rd,addr cp rd,imm16 divl rqd,@rs and rd,addr(rs) cp rd,rs divl rqd,addr and rd,imm16 cpb @rd,imm8 divl rqd,addr(rs) and rd,rs cpb addr(rd),imm8 divl rqd,imm32 andb rbd,@rs cpb addr,imm8 divl rqd,rrs andb rbd,addr cpb rbd,@rs djnz rd,disp7 andb rbd,addr(rs) cpb rbd,addr ei i2 andb rbd,imm8 cpb rbd,addr(rs) ex rd,@rs andb rbd,rbs cpb rbd,imm8 ex rd,addr bit @rd,imm4 cpb rbd,rbs ex rd,addr(rs) bit addr(rd),imm4 cpd rd,@rs,rr,cc ex rd,rs bit addr,imm4 cpdb rbd,@rs,rr,cc exb rbd,@rs bit rd,imm4 cpdr rd,@rs,rr,cc exb rbd,addr bit rd,rs cpdrb rbd,@rs,rr,cc exb rbd,addr(rs) bitb @rd,imm4 cpi rd,@rs,rr,cc exb rbd,rbs bitb addr(rd),imm4 cpib rbd,@rs,rr,cc ext0e imm8 bitb addr,imm4 cpir rd,@rs,rr,cc ext0f imm8 bitb rbd,imm4 cpirb rbd,@rs,rr,cc ext8e imm8 bitb rbd,rs cpl rrd,@rs ext8f imm8 bpt cpl rrd,addr exts rrd call @rd cpl rrd,addr(rs) extsb rd call addr cpl rrd,imm32 extsl rqd call addr(rd) cpl rrd,rrs halt calr disp12 cpsd @rd,@rs,rr,cc in rd,@rs clr @rd cpsdb @rd,@rs,rr,cc in rd,imm16 clr addr cpsdr @rd,@rs,rr,cc inb rbd,@rs clr addr(rd) cpsdrb @rd,@rs,rr,cc inb rbd,imm16 clr rd cpsi @rd,@rs,rr,cc inc @rd,imm4m1 clrb @rd cpsib @rd,@rs,rr,cc inc addr(rd),imm4m1 inc addr,imm4m1 ldb rbd,rs(rx) mult rrd,addr(rs) inc rd,imm4m1 ldb rd(imm16),rbs mult rrd,imm16 incb @rd,imm4m1 ldb rd(rx),rbs mult rrd,rs incb addr(rd),imm4m1 ldctl ctrl,rs multl rqd,@rs incb addr,imm4m1 ldctl rd,ctrl multl rqd,addr incb rbd,imm4m1 ldd @rs,@rd,rr multl rqd,addr(rs) ind @rd,@rs,ra lddb @rs,@rd,rr multl rqd,imm32 indb @rd,@rs,rba lddr @rs,@rd,rr multl rqd,rrs inib @rd,@rs,ra lddrb @rs,@rd,rr neg @rd inibr @rd,@rs,ra ldi @rd,@rs,rr neg addr iret ldib @rd,@rs,rr neg addr(rd) jp cc,@rd ldir @rd,@rs,rr neg rd jp cc,addr ldirb @rd,@rs,rr negb @rd jp cc,addr(rd) ldk rd,imm4 negb addr jr cc,disp8 ldl @rd,rrs negb addr(rd) ld @rd,imm16 ldl addr(rd),rrs negb rbd ld @rd,rs ldl addr,rrs nop ld addr(rd),imm16 ldl rd(imm16),rrs or rd,@rs ld addr(rd),rs ldl rd(rx),rrs or rd,addr ld addr,imm16 ldl rrd,@rs or rd,addr(rs) ld addr,rs ldl rrd,addr or rd,imm16 ld rd(imm16),rs ldl rrd,addr(rs) or rd,rs ld rd(rx),rs ldl rrd,imm32 orb rbd,@rs ld rd,@rs ldl rrd,rrs orb rbd,addr ld rd,addr ldl rrd,rs(imm16) orb rbd,addr(rs) ld rd,addr(rs) ldl rrd,rs(rx) orb rbd,imm8 ld rd,imm16 ldm @rd,rs,n orb rbd,rbs ld rd,rs ldm addr(rd),rs,n out @rd,rs ld rd,rs(imm16) ldm addr,rs,n out imm16,rs ld rd,rs(rx) ldm rd,@rs,n outb @rd,rbs lda rd,addr ldm rd,addr(rs),n outb imm16,rbs lda rd,addr(rs) ldm rd,addr,n outd @rd,@rs,ra lda rd,rs(imm16) ldps @rs outdb @rd,@rs,rba lda rd,rs(rx) ldps addr outib @rd,@rs,ra ldar rd,disp16 ldps addr(rs) outibr @rd,@rs,ra ldb @rd,imm8 ldr disp16,rs pop @rd,@rs ldb @rd,rbs ldr rd,disp16 pop addr(rd),@rs ldb addr(rd),imm8 ldrb disp16,rbs pop addr,@rs ldb addr(rd),rbs ldrb rbd,disp16 pop rd,@rs ldb addr,imm8 ldrl disp16,rrs popl @rd,@rs ldb addr,rbs ldrl rrd,disp16 popl addr(rd),@rs ldb rbd,@rs mbit popl addr,@rs ldb rbd,addr mreq rd popl rrd,@rs ldb rbd,addr(rs) mres push @rd,@rs ldb rbd,imm8 mset push @rd,addr ldb rbd,rbs mult rrd,@rs push @rd,addr(rs) ldb rbd,rs(imm16) mult rrd,addr push @rd,imm16 push @rd,rs set addr,imm4 subl rrd,imm32 pushl @rd,@rs set rd,imm4 subl rrd,rrs pushl @rd,addr set rd,rs tcc cc,rd pushl @rd,addr(rs) setb @rd,imm4 tccb cc,rbd pushl @rd,rrs setb addr(rd),imm4 test @rd res @rd,imm4 setb addr,imm4 test addr res addr(rd),imm4 setb rbd,imm4 test addr(rd) res addr,imm4 setb rbd,rs test rd res rd,imm4 setflg imm4 testb @rd res rd,rs sinb rbd,imm16 testb addr resb @rd,imm4 sinb rd,imm16 testb addr(rd) resb addr(rd),imm4 sind @rd,@rs,ra testb rbd resb addr,imm4 sindb @rd,@rs,rba testl @rd resb rbd,imm4 sinib @rd,@rs,ra testl addr resb rbd,rs sinibr @rd,@rs,ra testl addr(rd) resflg imm4 sla rd,imm8 testl rrd ret cc slab rbd,imm8 trdb @rd,@rs,rba rl rd,imm1or2 slal rrd,imm8 trdrb @rd,@rs,rba rlb rbd,imm1or2 sll rd,imm8 trib @rd,@rs,rbr rlc rd,imm1or2 sllb rbd,imm8 trirb @rd,@rs,rbr rlcb rbd,imm1or2 slll rrd,imm8 trtdrb @ra,@rb,rbr rldb rbb,rba sout imm16,rs trtib @ra,@rb,rr rr rd,imm1or2 soutb imm16,rbs trtirb @ra,@rb,rbr rrb rbd,imm1or2 soutd @rd,@rs,ra trtrb @ra,@rb,rbr rrc rd,imm1or2 soutdb @rd,@rs,rba tset @rd rrcb rbd,imm1or2 soutib @rd,@rs,ra tset addr rrdb rbb,rba soutibr @rd,@rs,ra tset addr(rd) rsvd36 sra rd,imm8 tset rd rsvd38 srab rbd,imm8 tsetb @rd rsvd78 sral rrd,imm8 tsetb addr rsvd7e srl rd,imm8 tsetb addr(rd) rsvd9d srlb rbd,imm8 tsetb rbd rsvd9f srll rrd,imm8 xor rd,@rs rsvdb9 sub rd,@rs xor rd,addr rsvdbf sub rd,addr xor rd,addr(rs) sbc rd,rs sub rd,addr(rs) xor rd,imm16 sbcb rbd,rbs sub rd,imm16 xor rd,rs sc imm8 sub rd,rs xorb rbd,@rs sda rd,rs subb rbd,@rs xorb rbd,addr sdab rbd,rs subb rbd,addr xorb rbd,addr(rs) sdal rrd,rs subb rbd,addr(rs) xorb rbd,imm8 sdl rd,rs subb rbd,imm8 xorb rbd,rbs sdlb rbd,rs subb rbd,rbs xorb rbd,rbs sdll rrd,rs subl rrd,@rs set @rd,imm4 subl rrd,addr set addr(rd),imm4 subl rrd,addr(rs)