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[/] [a-z80/] [trunk/] [cpu/] [control/] [Timings.csv] - Rev 14
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A-Z80 Timing Table M_ T_ Function valid nextM setM1 A:reg rd A:reg wr inc/dec A:latch D:reg rd D:reg wr Reg gate SW2 SW1 DB pads FLAGT ALU ALU bus op2 latch op1 latch nibble operation SZ XY HF PF NF CF CF2 Special Comments// 8-bit Load Group"#if pla[17] & ~pla[50] : ld r,n" "4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch r8 < d < R#002H T2 AB:000 DB:46 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead Y#end"#if pla[61] & ~pla[58] & ~pla[59] : ld r,r'" 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch r8 < u < op1#002H T2 AB:000 DB:05 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y r8 >r8 - >s0 bus#end"#if use_ixiy & pla[58] : ld r,(ix+d)" "4,3,5,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch r8 < d < R#006H T2 AB:001 DB:4E M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead Y#012H T8 AB:002 DB:-- 3 1 WZ=IX+d#013H T9 AB:002 DB:-- 3 2 WZ=IX+d#014H T10 AB:002 DB:-- 3 3 WZ=IX+d#015H T11 AB:002 DB:-- 3 4 WZ=IX+d#016H T12 AB:002 DB:-- 3 5 mr WZ=IX+d Clears the IX/IY and ...#end"#if ~use_ixiy & pla[58] : ld r,(hl)" "4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch r8 < d < R#002H T2 AB:000 DB:46 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:003 DB:-- 2 1 fMRead HL W#006H T6 AB:003 DB:03 MREQ RD 2 2 fMRead#007H T7 AB:003 DB:03 MREQ RD 2 3 fMRead Y#017H T13 AB:001 DB:-- 4 1 fMRead R ...continues here#018H T14 AB:001 DB:4E MREQ RD 4 2 fMRead#019H T15 AB:001 DB:4E MREQ RD 4 3 fMRead Y#end"#if use_ixiy & pla[59] : ld (ix+d),r" "4,3,5,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:70 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead Y#012H T8 AB:002 DB:-- 3 1 WZ=IX+d#013H T9 AB:002 DB:-- 3 2 WZ=IX+d#014H T10 AB:002 DB:-- 3 3 WZ=IX+d#015H T11 AB:002 DB:-- 3 4 WZ=IX+d#016H T12 AB:002 DB:-- 3 5 mw WZ=IX+d Clears the IX/IY and ...#end"#if ~use_ixiy & pla[59] : ld (hl),r" "4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:70 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mw r8 >r8 - > W#005H T5 AB:001 DB:-- 2 1 fMWrite HL W#006H T6 AB:001 DB:01 MREQ 2 2 fMWrite#007H T7 AB:001 DB:01 MREQ WR 2 3 fMWrite Y#017H T13 AB:000 DB:-- 4 1 fMWrite R r8 >r8 - > W ...continues here#018H T14 AB:000 DB:46 MREQ 4 2 fMWrite#019H T15 AB:000 DB:46 MREQ WR 4 3 fMWrite Y#end"#if pla[40] : ld (ix+d),n" "4,3,5,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:36 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead mr#012H T8 AB:003 DB:-- 3 1 fMRead PC W WZ=IX+d#013H T9 AB:003 DB:02 MREQ RD 3 2 fMRead PC + R WZ=IX+d#014H T10 AB:003 DB:02 MREQ RD 3 3 fMRead WZ=IX+d "Reads ""n"" at the same time"#015H T11 AB:003 DB:-- 3 4 WZ=IX+d#016H T12 AB:003 DB:-- 3 5 mw WZ=IX+d Clears the IX/IY and ...#end"#if pla[50] & ~pla[40] : ld (hl),n" "4,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:36 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mw#008H T8 AB:001 DB:-- 3 1 fMWrite HL W#009H T9 AB:001 DB:01 MREQ 3 2 fMWrite#010H T10 AB:001 DB:01 MREQ WR 3 3 fMWrite Y#017H T13 AB:002 DB:-- 4 1 fMWrite R ...continues here#018H T14 AB:002 DB:02 MREQ 4 2 fMWrite#019H T15 AB:002 DB:02 MREQ WR 4 3 fMWrite Y#end"#if pla[8] & pla[13] : ld (rr),a" "4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:02 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mw A >h u > W#005H T5 AB:001 DB:-- 2 1 fMWrite r16 W#006H T6 AB:001 DB:FF MREQ 2 2 fMWrite WZ + R#007H T7 AB:001 DB:FF MREQ WR 2 3 fMWrite Y#end"#if pla[8] & ~pla[13] : ld a,(rr)" "4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < d < R#002H T2 AB:000 DB:0A M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:002 DB:-- 2 1 fMRead r16 W#006H T6 AB:002 DB:02 MREQ RD 2 2 fMRead WZ + R#007H T7 AB:002 DB:02 MREQ RD 2 3 fMRead Y#end"#if pla[38] & pla[13] : ld (nn),a" "4,3,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:32 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead mw WZ W W <h d < R#011H T11 AB:001 DB:-- 4 1 fMWrite R A >h u > W#012H T12 AB:001 DB:FE MREQ 4 2 fMWrite WZ + R#013H T13 AB:001 DB:FE MREQ WR 4 3 fMWrite Y#end"#if pla[38] & ~pla[13] : ld a,(nn)" "4,3,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < d < R#002H T2 AB:000 DB:3A M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead mr W <h d < R#011H T11 AB:001 DB:-- 4 1 fMRead WZ W#012H T12 AB:001 DB:01 MREQ RD 4 2 fMRead WZ + R#013H T13 AB:001 DB:01 MREQ RD 4 3 fMRead Y#end"#if pla[83] : ld a,i/a,r" 5#005H T1 AB:001 DB:-- M1 1 1 fMFetch A < alu < res H OR * * * iff2 0#006H T2 AB:001 DB:57 M1 MREQ RD 1 2 fMFetch F < <#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y I/R >r8' - alu >s0 bus bus L OR * * * 0#009H T5 AB:001 DB:-- 1 5 Y#end"#if pla[57] : ld i,a/r,a" 5#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:47 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y I/R < u < op1#009H T5 AB:001 DB:-- 1 5 Y#end// 16-bit Load Group"#if pla[7] : ld rr,nn" "4,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch rh < d < R USE_SP#002H T2 AB:000 DB:01 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr#008H T8 AB:002 DB:-- 3 1 fMRead PC W rl < d < R USE_SP#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead Y#end"#if pla[30] & pla[13] : ld (nn),hl" "4,3,3,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:22 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead mw WZ W W <h d < R#011H T11 AB:001 DB:-- 4 1 fMWrite R rl >l > W#012H T12 AB:001 DB:01 MREQ 4 2 fMWrite WZ + R#013H T13 AB:001 DB:01 MREQ WR 4 3 fMWrite mw WZ W#014H T14 AB:002 DB:-- 5 1 fMWrite R rh >h u > W#015H T15 AB:002 DB:02 MREQ 5 2 fMWrite WZ + R#016H T16 AB:002 DB:02 MREQ WR 5 3 fMWrite Y#end"#if pla[30] & ~pla[13] : ld hl,(nn)" "4,3,3,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:2A M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead mr W <h d < R#011H T11 AB:001 DB:-- 4 1 fMRead WZ W#012H T12 AB:001 DB:01 MREQ RD 4 2 fMRead WZ + R#013H T13 AB:001 DB:01 MREQ RD 4 3 fMRead mr rl < d < R#014H T14 AB:002 DB:-- 5 1 fMRead WZ W#015H T15 AB:002 DB:02 MREQ RD 5 2 fMRead WZ + R#016H T16 AB:002 DB:02 MREQ RD 5 3 fMRead Y rh < d < R#end"#if pla[31] & pla[33] : ld (nn),rr" "4,3,3,3,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:43 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#012H T8 AB:003 DB:-- 3 1 fMRead PC W#013H T9 AB:003 DB:02 MREQ RD 3 2 fMRead PC + R#014H T10 AB:003 DB:02 MREQ RD 3 3 fMRead mw WZ W W <h d < R#015H T11 AB:001 DB:-- 4 1 fMWrite R rl >l > W USE_SP#016H T12 AB:001 DB:FF MREQ 4 2 fMWrite WZ + R#017H T13 AB:001 DB:FF MREQ WR 4 3 fMWrite mw WZ W#018H T14 AB:002 DB:-- 5 1 fMWrite R rh >h u > W USE_SP#019H T15 AB:002 DB:C3 MREQ 5 2 fMWrite WZ + R#020H T16 AB:002 DB:C3 MREQ WR 5 3 fMWrite Y#end"#if pla[31] & ~pla[33] : ld rr,(nn)" "4,3,3,3,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:43 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#012H T8 AB:003 DB:-- 3 1 fMRead PC W#013H T9 AB:003 DB:02 MREQ RD 3 2 fMRead PC + R#014H T10 AB:003 DB:02 MREQ RD 3 3 fMRead mr W <h d < R#015H T11 AB:001 DB:-- 4 1 fMRead WZ W#016H T12 AB:001 DB:FF MREQ RD 4 2 fMRead WZ + R#017H T13 AB:001 DB:FF MREQ RD 4 3 fMRead mr rl < d < R USE_SP#018H T14 AB:002 DB:-- 5 1 fMRead WZ W#019H T15 AB:002 DB:C3 MREQ RD 5 2 fMRead WZ + R#020H T16 AB:002 DB:C3 MREQ RD 5 3 fMRead Y rh < d < R USE_SP#end"#if pla[5] : ld sp,hl" 6#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:F9 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y HL W#005H T5 AB:000 DB:-- 1 5 SP R#006H T6 AB:000 DB:-- 1 6 Y#end#if pla[23] & pla[16] : push qq "5,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C5 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y#005H T5 AB:000 DB:-- 1 5 mw SP - W#006H T6 AB:002 DB:-- 2 1 fMWrite - P rh >h u > W#007H T7 AB:002 DB:02 MREQ 2 2 fMWrite SP - R#008H T8 AB:002 DB:02 MREQ WR 2 3 fMWrite mw SP - W#009H T9 AB:001 DB:-- 3 1 fMWrite - P rl >l > W#010H T10 AB:001 DB:01 MREQ 3 2 fMWrite SP - R#011H T11 AB:001 DB:01 MREQ WR 3 3 fMWrite Y#end#if pla[23] & ~pla[16] : pop qq "4,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C1 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead SP W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead SP + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr rl < d < R#008H T8 AB:002 DB:-- 3 1 fMRead SP W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead SP + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead Y rh < d < R#end"// Exchange, Block Transfer and Search Groups""#if pla[2] : ex de,hl" 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:EB M1 MREQ RD 1 2 fMFetch Ex_DE_HL#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y#end"#if pla[39] : ex af,af'" 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:08 M1 MREQ RD 1 2 fMFetch Ex_AF_AF'#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y#end#if pla[1] : exx 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:D9 M1 MREQ RD 1 2 fMFetch EXX#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y#end"#if pla[10] : ex (sp),hl" "4,3,4,3,5"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:E3 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:0FD DB:-- 2 1 fMRead SP W#006H T6 AB:0FD DB:03 MREQ RD 2 2 fMRead SP + R#007H T7 AB:0FD DB:03 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:0FE DB:-- 3 1 fMRead SP W#009H T9 AB:0FE DB:D1 MREQ RD 3 2 fMRead SP + R#010H T10 AB:0FE DB:D1 MREQ RD 3 3 fMRead W <h d < R#011H T11 AB:0FE DB:-- 3 4 mw SP - W#012H T12 AB:0FE DB:-- 4 1 fMWrite - P rh >h u > W#013H T13 AB:0FE DB:00 MREQ 4 2 fMWrite SP - R#014H T14 AB:0FE DB:00 MREQ WR 4 3 fMWrite mw SP - W#015H T15 AB:0FD DB:-- 5 1 fMWrite - P rl >l > W#016H T16 AB:0FD DB:01 MREQ 5 2 fMWrite SP - R#017H T17 AB:0FD DB:01 MREQ WR 5 3 fMWrite WZ W#018H T18 AB:0FD DB:01 5 4 HL R#019H T19 AB:0FD DB:01 5 5 Y#end#if pla[0] : Non-repeating version of a block instruction "4,3,5,(5)"#always NonRep#end#if pla[12] : ldi/ldir/ldd/lddr "4,3,5,(5)"#035H T1 AB:00A DB:-- M1 1 1 fMFetch alu res H OR * * REP 0 R#036H T2 AB:00A DB:B0 M1 MREQ RD 1 2 fMFetch F < <#037H T3 AB:004 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#038H T4 AB:004 DB:-- RFSH MREQ 1 4 fMFetch Y mr#039H T5 AB:000 DB:-- 2 1 fMRead HL W#040H T6 AB:000 DB:21 MREQ RD 2 2 fMRead HL op3 R#041H T7 AB:000 DB:21 MREQ RD 2 3 fMRead mw d < R alu >s0 bus L ADD * W#042H T8 AB:000 DB:-- 3 1 fMWrite DE W alu < res H ADD R#043H T9 AB:000 DB:21 MREQ 3 2 fMWrite DE op3 R#044H T10 AB:000 DB:21 MREQ WR 3 3 fMWrite BC W#045H T11 AB:000 DB:21 3 4 BC - R WriteBC=1 Update repeat flag latch#046H T12 AB:000 DB:21 3 5 Y BR#047H T13 AB:000 DB:-- 4 1 PC W#048H T14 AB:000 DB:-- 4 2 PC - R#049H T15 AB:000 DB:-- 4 3 PC W#050H T16 AB:000 DB:-- 4 4 PC - R#051H T17 AB:000 DB:-- 4 5 Y#end#if pla[11] : cpi/cpir/cpd/cpdr "4,3,5,(5)"#035H T1 AB:00A DB:-- M1 1 1 fMFetch alu < res 0 H SUB * REP 1 R#036H T2 AB:00A DB:B1 M1 MREQ RD 1 2 fMFetch F < < ?NF_HF#037H T3 AB:004 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#038H T4 AB:004 DB:-- RFSH MREQ 1 4 fMFetch Y mr#039H T5 AB:000 DB:-- 2 1 fMRead HL W#040H T6 AB:000 DB:21 MREQ RD 2 2 fMRead HL op3 R#041H T7 AB:000 DB:21 MREQ RD 2 3 fMRead Y d < R alu >s0 bus L SUB * W#042H T8 AB:000 DB:-- 3 1 alu < res H SUB * R#043H T9 AB:000 DB:-- 3 2#044H T10 AB:000 DB:-- 3 3 BC W#045H T11 AB:000 DB:-- 3 4 BC - R WriteBC=1 Update repeat flag latch#046H T12 AB:000 DB:-- 3 5 Y BRZ#047H T13 AB:000 DB:-- 4 1 PC W#048H T14 AB:000 DB:-- 4 2 PC - R#049H T15 AB:000 DB:-- 4 3 PC W#050H T16 AB:000 DB:-- 4 4 PC - R#051H T17 AB:000 DB:-- 4 5 Y#end// 8-bit Arithmetic and Logic Group"#if pla[65] & ~pla[52] : add/sub/and/or/xor/cmp a,r" 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch ? < u alu < res H PLA * ? ? ? * A is stored in each ALU PLA below#002H T2 AB:000 DB:80 M1 MREQ RD 1 2 fMFetch F < < PLA ?NF_HF_CF "If (NF), complement HF, CF"#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y r8 >r8 - alu >s0 bus L PLA * * * ?#end"#if pla[64] : add/sub/and/or/xor/cmp a,n" "4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch ? < u alu < res H PLA * ? ? ? * A is stored in each ALU PLA below#002H T2 AB:000 DB:C6 M1 MREQ RD 1 2 fMFetch F < < PLA ?NF_HF_CF "If (NF), complement HF, CF"#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr r8 >r8 - alu >s0 bus L PLA * * * ?#005H T5 AB:001 DB:-- 2 1 fMRead PC W PLA#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead Y d < R alu >s0 bus L PLA * * * ?#end#if use_ixiy & pla[52] : add/sub/and/or/xor/cp (ix+d) "4,3,5,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:86 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead Y#012H T8 AB:002 DB:-- 3 1 WZ=IX+d#013H T9 AB:002 DB:-- 3 2 WZ=IX+d#014H T10 AB:002 DB:-- 3 3 WZ=IX+d "Reads ""n"" at the same time"#015H T11 AB:002 DB:-- 3 4 WZ=IX+d#016H T12 AB:002 DB:-- 3 5 mr WZ=IX+d Clears the IX/IY and ...#end#if ~use_ixiy & pla[52] : add/sub/and/or/xor/cp (hl) "4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch ? < u alu < res H PLA * ? ? ? * A is stored in each ALU PLA below#002H T2 AB:000 DB:86 M1 MREQ RD 1 2 fMFetch F < < PLA ?NF_HF_CF "If (NF), complement HF, CF"#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead HL W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead WZ + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead Y d < R alu >s0 bus L PLA * * * ?#017H T13 AB:000 DB:-- 4 1 fMRead R ...continues here#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead AF > > >s0 bus bus * * * * * Reloads AF since (IX+d) used ALU core#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead Y d < R alu >s0 bus L PLA * * * ?#end#if pla[66] & ~pla[53] : inc/dec r 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch r8 < u alu < res H ADC * * V R#002H T2 AB:000 DB:05 M1 MREQ RD 1 2 fMFetch F < < ?NF_HF "If (NF), complement HF"#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y r8' >r8' - alu >s0 0 bus L ADC * * * 0 1 W#end#if pla[75] : dec#001H T1 AB:000 DB:-- M1 1 1 fMFetch 1 0 NEG_OP2#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch 1 0 NEG_OP2#end#if (M2 | M4) & pla[75] : dec#always 1 0 NEG_OP2#end#if use_ixiy & pla[53] : inc/dec (ix+d) "4,3,5,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:34 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead Y#012H T8 AB:002 DB:-- 3 1 WZ=IX+d#013H T9 AB:002 DB:-- 3 2 WZ=IX+d#014H T10 AB:002 DB:-- 3 3 WZ=IX+d#015H T11 AB:002 DB:-- 3 4 WZ=IX+d#016H T12 AB:002 DB:-- 3 5 mr WZ=IX+d Clears the IX/IY and ...#end#if ~use_ixiy & pla[53] : inc/dec (hl) "4,4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:34 M1 MREQ RD 1 2 fMFetch F < < ?NF_HF "If (NF), complement HF"#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead HL W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead d < R alu >s0 0 bus L ADC * 0 1 W#008H T8 AB:001 DB:-- 2 4 mw u > W alu < res H ADC * * V R#009H T9 AB:001 DB:-- 3 1 fMWrite R#010H T10 AB:001 DB:02 MREQ 3 2 fMWrite#011H T11 AB:001 DB:02 MREQ WR 3 3 fMWrite Y#017H T13 AB:002 DB:-- 4 1 fMRead R ...continues here#018H T14 AB:002 DB:01 MREQ RD 4 2 fMRead#019H T15 AB:002 DB:01 MREQ RD 4 3 fMRead d < R alu >s0 0 bus L ADC * 0 1 W#020H T16 AB:002 DB:-- 4 4 mw u > W alu < res H ADC * * V R#021H T17 AB:002 DB:-- 5 1 fMWrite R#022H T18 AB:002 DB:02 MREQ 5 2 fMWrite#023H T19 AB:002 DB:02 MREQ WR 5 3 fMWrite Y#end// 16-bit Arithmetic Group"#if pla[69] : add hl,ss" "4,4,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:09 M1 MREQ RD 1 2 fMFetch F < <#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * 0 *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y L >l d >s0 bus#005H T5 AB:000 DB:-- 2 1 rl >l d alu >s0 bus L ADD * USE_SP#006H T6 AB:000 DB:-- 2 2 Z <l u alu < res H ADC * *#007H T7 AB:000 DB:-- 2 3 H > >s0 bus#008H T8 AB:000 DB:-- 2 4 Y rh > alu >s0 bus L ADC * USE_SP#009H T9 AB:000 DB:-- 3 1 WZ W W <h u alu < res H ADC * *#010H T10 AB:000 DB:-- 3 2 HL R#011H T11 AB:000 DB:-- 3 3 Y#end"#if op3 & pla[68] : adc hl,ss" "4,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:42 M1 MREQ RD 1 2 fMFetch F < <#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * 0 *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y L >l d >s0 bus#009H T5 AB:001 DB:-- 2 1 rl >l d alu >s0 bus L ADC * USE_SP#010H T6 AB:001 DB:-- 2 2 Z <l u alu < res H ADC * * *#011H T7 AB:001 DB:-- 2 3 H > >s0 bus#012H T8 AB:001 DB:-- 2 4 Y rh > alu >s0 bus L ADC * USE_SP#013H T9 AB:001 DB:-- 3 1 WZ W W <h u alu < res H ADC * * V * ZERO_16BIT#014H T10 AB:001 DB:-- 3 2 HL R#015H T11 AB:001 DB:-- 3 3 Y#end"#if ~op3 & pla[68] : sbc hl,ss" "4,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:42 M1 MREQ RD 1 2 fMFetch F < < ?NF_HF_CF#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * 1 *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y L >l d >s0 bus#009H T5 AB:001 DB:-- 2 1 rl >l d alu >s0 bus L SBC * USE_SP#010H T6 AB:001 DB:-- 2 2 Z <l u alu < res H SBC * * *#011H T7 AB:001 DB:-- 2 3 H > >s0 bus#012H T8 AB:001 DB:-- 2 4 Y rh > alu >s0 bus L SBCh * USE_SP#013H T9 AB:001 DB:-- 3 1 WZ W W <h u alu < res H SBC * * V * ZERO_16BIT#014H T10 AB:001 DB:-- 3 2 HL R#015H T11 AB:001 DB:-- 3 3 Y#end#if pla[9] : inc/dec ss 6#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:03 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y r16 W USE_SP#005H T5 AB:000 DB:-- 1 5 r16 op3 R USE_SP#006H T6 AB:000 DB:-- 1 6 Y#end// General Purpose Arithmetic and CPU Control Groups#if pla[77] : daa 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < alu < res H ADC * * P * ?NF_SUB#002H T2 AB:000 DB:27 M1 MREQ RD 1 2 fMFetch F < < R ?NF_HF#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * W2 * * * "Only for DAA, write HF2 flag"#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y d alu >s0 bus L ADC * * * 1 W.daa "DAA,?NF_SUB"#end#if pla[81] : cpl 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < alu < res H OR * 1 NEG_OP2#002H T2 AB:000 DB:2F M1 MREQ RD 1 2 fMFetch F < < ?NF_HF#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y alu 0 L OR * * 1 NEG_OP2#end#if pla[82] : neg 4#005H T1 AB:001 DB:-- M1 1 1 fMFetch A < alu < res H SUB * * V 1 *#006H T2 AB:001 DB:44 M1 MREQ RD 1 2 fMFetch F < < ?NF_HF_CF#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y alu 0 L SUB * * * 1 *#end#if pla[89] : ccf 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch alu < res H OR * 0#002H T2 AB:000 DB:3F M1 MREQ RD 1 2 fMFetch F < < ^ ?~CF_HF#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y alu L OR * * 0#end#if pla[92] : scf 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch alu < res H OR * 0#002H T2 AB:000 DB:37 M1 MREQ RD 1 2 fMFetch F < < 1#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y alu L OR * * 0#end#if pla[95] : halt 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:76 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch HALT#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y#end#if pla[97] : di/ei 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:F3 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch DI_EI#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y NO_INTS "At last M/T, inhibit interrupts"#end#if pla[96] : im n 4#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:46 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch < R IM M1/T3 reads in mode # from opcode[4:3]#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y#end// Rotate and Shift Group#if pla[25] : rlca/rla/rrca/rra 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < alu < res H OR * * 0 *#002H T2 AB:000 DB:07 M1 MREQ RD 1 2 fMFetch F < < R#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y A > alu >s1 bus bus L OR * * 0 W.sh#end#if ~use_ixiy & pla[70] & ~pla[55] : rlc r 4#005H T1 AB:001 DB:-- M1 1 1 fMFetch r8' < u alu < res H OR * * * P 0 *#006H T2 AB:001 DB:00 M1 MREQ RD 1 2 fMFetch F < < R#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y r8 >r8 - alu >s1 bus bus L OR * * * 0 W.sh#017H T13 AB:000 DB:-- 4 1 fMRead WZ W R OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead mw d < R alu >s1 bus bus L OR 0 W.sh#029H T17 AB:002 DB:-- 5 1 fMWrite R u > W alu < res H OR * * * P 0 *#030H T18 AB:002 DB:BB MREQ 5 2 fMWrite#031H T19 AB:002 DB:BB MREQ WR 5 3 fMWrite Y#end#if ~use_ixiy & pla[70] & pla[55] : rlc (hl) "4,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:00 M1 MREQ RD 1 2 fMFetch F < < R#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:006 DB:-- 2 1 fMRead HL W#010H T6 AB:006 DB:05 MREQ RD 2 2 fMRead#011H T7 AB:006 DB:05 MREQ RD 2 3 fMRead#012H T8 AB:006 DB:-- 2 4 mw d < R alu >s1 bus bus L OR 0 W.sh#013H T9 AB:006 DB:-- 3 1 fMWrite R u > W alu < res H OR * * * P 0 *#014H T10 AB:006 DB:0A MREQ 3 2 fMWrite#015H T11 AB:006 DB:0A MREQ WR 3 3 fMWrite Y#017H T13 AB:000 DB:-- 4 1 fMRead WZ W R OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead mw d < R alu >s1 bus bus L OR 0 W.sh#029H T17 AB:002 DB:-- 5 1 fMWrite R u > W alu < res H OR * * * P 0 *#030H T18 AB:002 DB:BB MREQ 5 2 fMWrite#031H T19 AB:002 DB:BB MREQ WR 5 3 fMWrite Y#end#if pla[15] & op3 : rld "4,3,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch A < alu < res H OR * * P 0#006H T2 AB:001 DB:67 M1 MREQ RD 1 2 fMFetch F < <#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:000 DB:-- 2 1 fMRead HL W#010H T6 AB:000 DB:ED MREQ RD 2 2 fMRead WZ + R#011H T7 AB:000 DB:ED MREQ RD 2 3 fMRead Y#012H T8 AB:000 DB:-- 3 1 d < R >s0 lq L#013H T9 AB:000 DB:-- 3 2#014H T10 AB:000 DB:-- 3 3#015H T11 AB:000 DB:-- 3 4 mw d < R >s0 low H#016H T12 AB:000 DB:-- 4 1 fMWrite R u > W < op2#017H T13 AB:000 DB:EE MREQ 4 2 fMWrite op1 bus#018H T14 AB:000 DB:EE MREQ WR 4 3 fMWrite Y alu L OR * * * 0#end#if pla[15] & ~op3 : rrd "4,3,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch A < alu < res H OR * * P 0#006H T2 AB:001 DB:67 M1 MREQ RD 1 2 fMFetch F < <#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:000 DB:-- 2 1 fMRead HL W#010H T6 AB:000 DB:ED MREQ RD 2 2 fMRead WZ + R#011H T7 AB:000 DB:ED MREQ RD 2 3 fMRead Y#012H T8 AB:000 DB:-- 3 1 d < R >s0 lq low L#013H T9 AB:000 DB:-- 3 2 u > W < op2#014H T10 AB:000 DB:-- 3 3 A > >s0 lq L#015H T11 AB:000 DB:-- 3 4 mw d < R >s0 low H#016H T12 AB:000 DB:-- 4 1 fMWrite R u > W < op2#017H T13 AB:000 DB:EE MREQ 4 2 fMWrite op1 bus#018H T14 AB:000 DB:EE MREQ WR 4 3 fMWrite Y alu L OR * * * 0#end// Bit Manipulation Group"#if ~use_ixiy & pla[72] & ~pla[55] : bit b,r" 4#005H T1 AB:001 DB:-- M1 1 1 fMFetch alu < res H AND * * P 0#006H T2 AB:001 DB:40 M1 MREQ RD 1 2 fMFetch F < <#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > R > >bs bus bus * * * * * * Override M1/T3 load with a bit select#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y r8 >r8 - alu >s0 bus L AND * * * 0#017H T13 AB:000 DB:-- 4 1 fMRead R R >bs bus bus OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead#020H T16 AB:000 DB:-- 4 4 Y d < R alu >s0 bus L AND * * 0#end"#if ~use_ixiy & pla[72] & pla[55] : bit b,(hl)" "4,4"#005H T1 AB:001 DB:-- M1 1 1 fMFetch alu < res H AND * * P 0#006H T2 AB:001 DB:06 M1 MREQ RD 1 2 fMFetch F < <#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > R > >bs bus bus * * * * * * Override M1/T3 load with a bit select#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:006 DB:-- 2 1 fMRead HL W#010H T6 AB:006 DB:05 MREQ RD 2 2 fMRead#011H T7 AB:006 DB:05 MREQ RD 2 3 fMRead WZ > > * "BIT n,(HL) saves WZ in X,Y (""MEMPTR"")"#012H T8 AB:006 DB:-- 2 4 Y d < R alu >s0 bus L AND * * 0#017H T13 AB:000 DB:-- 4 1 fMRead WZ W R >bs bus bus OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead#020H T16 AB:000 DB:-- 4 4 Y d < R alu >s0 bus L AND * * 0#end"#if ~use_ixiy & pla[74] & ~pla[55] : set b,r" 4#005H T1 AB:001 DB:-- M1 1 1 fMFetch r8' < u < res H OR#006H T2 AB:001 DB:40 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > R > >bs bus bus * * * * * * Override M1/T3 load with a bit select#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y r8 >r8 - >s0 bus L OR#017H T13 AB:000 DB:-- 4 1 fMRead WZ W R >bs bus bus OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead mw d < R alu >s0 bus L OR#029H T17 AB:002 DB:-- 5 1 fMWrite R u > W < res H OR#030H T18 AB:002 DB:BB MREQ 5 2 fMWrite#031H T19 AB:002 DB:BB MREQ WR 5 3 fMWrite Y#end"#if ~use_ixiy & pla[74] & pla[55] : set b,(hl)" "4,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:06 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > R > >bs bus bus * * * * * * Override M1/T3 load with a bit select#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:006 DB:-- 2 1 fMRead HL W#010H T6 AB:006 DB:05 MREQ RD 2 2 fMRead#011H T7 AB:006 DB:05 MREQ RD 2 3 fMRead d < R >s0 bus L OR#012H T8 AB:006 DB:-- 2 4 mw u > W < res H OR#013H T9 AB:006 DB:-- 3 1 fMWrite R#014H T10 AB:006 DB:0A MREQ 3 2 fMWrite#015H T11 AB:006 DB:0A MREQ WR 3 3 fMWrite Y#017H T13 AB:000 DB:-- 4 1 fMRead WZ W R >bs bus bus OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead mw d < R alu >s0 bus L OR#029H T17 AB:002 DB:-- 5 1 fMWrite R u > W < res H OR#030H T18 AB:002 DB:BB MREQ 5 2 fMWrite#031H T19 AB:002 DB:BB MREQ WR 5 3 fMWrite Y#end"#if ~use_ixiy & pla[73] & ~pla[55] : res b,r" 4#005H T1 AB:001 DB:-- M1 1 1 fMFetch r8' < u < res H NAND#006H T2 AB:001 DB:40 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > R > >bs bus bus * * * * * * Override M1/T3 load with a bit select#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y Y r8 >r8 - >s0 bus L NAND#017H T13 AB:000 DB:-- 4 1 fMRead WZ W R >bs bus bus OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead mw d < R alu >s0 bus L NAND#029H T17 AB:002 DB:-- 5 1 fMWrite R u > W < res H NAND#030H T18 AB:002 DB:BB MREQ 5 2 fMWrite#031H T19 AB:002 DB:BB MREQ WR 5 3 fMWrite Y#end"#if ~use_ixiy & pla[73] & pla[55] : res b,(hl)" "4,4,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:06 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > R > >bs bus bus * * * * * * Override M1/T3 load with a bit select#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:006 DB:-- 2 1 fMRead HL W#010H T6 AB:006 DB:05 MREQ RD 2 2 fMRead#011H T7 AB:006 DB:05 MREQ RD 2 3 fMRead d < R >s0 bus L NAND#012H T8 AB:006 DB:-- 2 4 mw u > W < res H NAND#013H T9 AB:006 DB:-- 3 1 fMWrite R#014H T10 AB:006 DB:0A MREQ 3 2 fMWrite#015H T11 AB:006 DB:0A MREQ WR 3 3 fMWrite Y#017H T13 AB:000 DB:-- 4 1 fMRead WZ W R >bs bus bus OpcodeToIR ...continues here from the (ix+d) addressing mode#018H T14 AB:000 DB:DD MREQ RD 4 2 fMRead#019H T15 AB:000 DB:DD MREQ RD 4 3 fMRead mw d < R alu >s0 bus L NAND#029H T17 AB:002 DB:-- 5 1 fMWrite R u > W < res H NAND#030H T18 AB:002 DB:BB MREQ 5 2 fMWrite#031H T19 AB:002 DB:BB MREQ WR 5 3 fMWrite Y#end// Input and Output Groups"#if pla[37] & ~pla[28] : in a,(n)" "4,3,4"#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < d < R#002H T2 AB:000 DB:DB M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead ior#008H T8 AB:001 DB:-- 3 1 fIORead A W ? < < R#009H T9 AB:001 DB:-- RD IORQ 3 2 fIORead#010H T10 AB:001 DB:-- RD IORQ 3 3 fIORead#011H T11 AB:001 DB:-- RD IORQ 3 4 fIORead Y#end"#if pla[27] & ~pla[34] : in r,(c)" "4,4"#005H T1 AB:001 DB:-- M1 1 1 fMFetch r8 < d < R alu res H OR * * P 0#006H T2 AB:001 DB:40 M1 MREQ RD 1 2 fMFetch F < <#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y ior#009H T5 AB:0FF DB:-- 2 1 fIORead BC W#010H T6 AB:0FF DB:-- RD IORQ 2 2 fIORead#011H T7 AB:0FF DB:-- RD IORQ 2 3 fIORead#012H T8 AB:0FF DB:-- RD IORQ 2 4 fIORead Y d < R alu >s0 bus bus L OR * * * 0#end"#if pla[37] & pla[28] : out (n),a" "4,3,4"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:D3 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead iow A W <l < R#008H T8 AB:001 DB:-- 3 1 fIOWrite R A >h u > W#009H T9 AB:001 DB:03 WR IORQ 3 2 fIOWrite#010H T10 AB:001 DB:03 WR IORQ 3 3 fIOWrite#011H T11 AB:001 DB:03 WR IORQ 3 4 fIOWrite Y#end"#if pla[27] & pla[34] : out (c),r" "4,4"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:41 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y iow r8' >r8' - > W#009H T5 AB:0FF DB:-- 2 1 fIOWrite BC W#010H T6 AB:0FF DB:C3 WR IORQ 2 2 fIOWrite#011H T7 AB:0FF DB:C3 WR IORQ 2 3 fIOWrite#012H T8 AB:0FF DB:C3 WR IORQ 2 4 fIOWrite Y#end#if pla[91] & pla[21] : ini/inir/ind/indr "5,4,3,(5)"#035H T1 AB:00A DB:-- M1 1 1 fMFetch < res H XOR P#036H T2 AB:00A DB:B2 M1 MREQ RD 1 2 fMFetch F < <#037H T3 AB:004 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#038H T4 AB:004 DB:-- RFSH MREQ 1 4 fMFetch Y#039H T5 AB:004 DB:-- 1 5 ior#040H T6 AB:000 DB:-- 2 1 fIORead BC W#041H T7 AB:000 DB:-- RD IORQ 2 2 fIORead B > alu >s0 0 bus L ADD * NEG_OP2#042H T8 AB:000 DB:-- RD IORQ 2 3 fIORead B < alu < res H ADD * * * NEG_OP2#043H T9 AB:000 DB:-- RD IORQ 2 4 fIORead mw d < R alu >s0 bus S NEG_OP2#044H T10 AB:000 DB:-- 3 1 fMWrite HL W#045H T11 AB:000 DB:B1 MREQ 3 2 fMWrite HL op3 R#046H T12 AB:000 DB:B1 MREQ WR 3 3 fMWrite Y BZ#047H T13 AB:000 DB:-- 4 1 PC W#048H T14 AB:000 DB:-- 4 2 PC - R#049H T15 AB:000 DB:-- 4 3 PC W#050H T16 AB:000 DB:-- 4 4 PC - R#051H T17 AB:000 DB:-- 4 5 Y#end#if pla[91] & pla[20] : outi/outir/outd/outdr "5,4,3,(5)"#035H T1 AB:00A DB:-- M1 1 1 fMFetch alu < res H XOR P#036H T2 AB:00A DB:B3 M1 MREQ RD 1 2 fMFetch F < <#037H T3 AB:004 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#038H T4 AB:004 DB:-- RFSH MREQ 1 4 fMFetch Y B > alu >s0 0 bus L ADD * NEG_OP2#039H T5 AB:004 DB:-- 1 5 mr B < alu < res H ADD * * NEG_OP2#040H T6 AB:000 DB:-- 2 1 fMRead HL W#041H T7 AB:000 DB:21 MREQ RD 2 2 fMRead HL op3 R#042H T8 AB:000 DB:21 MREQ RD 2 3 fMRead iow L >l d >s0 bus#043H T9 AB:000 DB:-- 3 1 fIOWrite BC W#044H T10 AB:000 DB:21 WR IORQ 3 2 fIOWrite d < R alu >s0 bus L ADD * S#045H T11 AB:000 DB:21 WR IORQ 3 3 fIOWrite alu < res H ADD *#046H T12 AB:000 DB:21 WR IORQ 3 4 fIOWrite Y BZ#047H T13 AB:000 DB:-- 4 1 PC W#048H T14 AB:000 DB:-- 4 2 PC - R#049H T15 AB:000 DB:-- 4 3 PC W#050H T16 AB:000 DB:-- 4 4 PC - R#051H T17 AB:000 DB:-- 4 5 Y#end// Jump Group#if pla[29] : jp nn "4,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C3 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead Y WZ W W <h d < R NOT_PC!#end"#if pla[43] : jp cc,nn" "4,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C2 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead Y WZ? W W? <h d < R Select WZ if condition is true#end#if pla[47] : jr e "4,3,5"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:18 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead Y#008H T8 AB:001 DB:-- 3 1 d < R alu >s0 bus * "Reads ""e"" from the data latch"#009H T9 AB:001 DB:-- 3 2 PCl >l d alu >s0 bus L ADD *#010H T10 AB:001 DB:-- 3 3 Z <l u alu < res H ADD *#011H T11 AB:001 DB:-- 3 4 PCh > alu >s0 0 bus L ADC * ?SF_NEG#012H T12 AB:001 DB:-- 3 5 Y WZ W W <h alu < res H ADC "?SF_NEG, NOT_PC!"#end"#if pla[48] : jr ss,e" "4,3,(5)"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:20 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr CondShort M1/T4 evaluates a condition: force short#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead Y SS#008H T8 AB:001 DB:-- 3 1 d < R alu >s0 bus * "Reads ""e"" from the data latch"#009H T9 AB:001 DB:-- 3 2 PCl >l d alu >s0 bus L ADD *#010H T10 AB:001 DB:-- 3 3 Z <l u alu < res H ADD *#011H T11 AB:001 DB:-- 3 4 PCh > alu >s0 0 bus L ADC * ?SF_NEG#012H T12 AB:001 DB:-- 3 5 Y WZ W W <h alu < res H ADC "?SF_NEG, NOT_PC!"#end#if pla[6] : jp hl 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:E9 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y HL W NOT_PC!#end#if pla[26] : djnz e "5,3,(5)"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:10 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y B >h alu >s0 0 bus L ADD * NEG_OP2 B=B-1#005H T5 AB:000 DB:-- 1 5 mr B < alu < res H ADD * NEG_OP2#006H T6 AB:001 DB:-- 2 1 fMRead PC W#007H T7 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#008H T8 AB:001 DB:01 MREQ RD 2 3 fMRead Y ZF#009H T9 AB:001 DB:-- 3 1 d < R alu >s0 bus * "Reads ""e"" from the data latch"#010H T10 AB:001 DB:-- 3 2 PCl >l d alu >s0 bus L ADD *#011H T11 AB:001 DB:-- 3 3 Z <l u alu < res H ADD *#012H T12 AB:001 DB:-- 3 4 PCh >h alu >s0 0 bus L ADC * ?SF_NEG#013H T13 AB:001 DB:-- 3 5 Y WZ W W <h alu < res H ADC "?SF_NEG, NOT_PC!"#end// Call and Return Group#if pla[24] : call nn "4,3,4,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:CD M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead W <h d < R#011H T11 AB:002 DB:-- 3 4 mw SP - W#012H T12 AB:000 DB:-- 4 1 fMWrite - P PCh >h u > W#013H T13 AB:000 DB:00 MREQ 4 2 fMWrite SP - R#014H T14 AB:000 DB:00 MREQ WR 4 3 fMWrite mw SP - W#015H T15 AB:0FF DB:-- 5 1 fMWrite - P PCl >l > W#016H T16 AB:0FF DB:03 MREQ 5 2 fMWrite SP - R#017H T17 AB:0FF DB:03 MREQ WR 5 3 fMWrite Y WZ W NOT_PC!#end"#if pla[42] : call cc,nn" "4,3,3/(4,3,4,3,3)"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C4 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:001 DB:-- 2 1 fMRead PC W#006H T6 AB:001 DB:01 MREQ RD 2 2 fMRead PC + R#007H T7 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:002 DB:-- 3 1 fMRead PC W#009H T9 AB:002 DB:02 MREQ RD 3 2 fMRead PC + R#010H T10 AB:002 DB:02 MREQ RD 3 3 fMRead CC CC W? <h d < R Load W only if condition is true#011H T11 AB:002 DB:-- 3 4 mw SP - W#012H T12 AB:000 DB:-- 4 1 fMWrite - P PCh >h u > W#013H T13 AB:000 DB:00 MREQ 4 2 fMWrite SP - R#014H T14 AB:000 DB:00 MREQ WR 4 3 fMWrite mw SP - W#015H T15 AB:0FF DB:-- 5 1 fMWrite - P PCl >l > W#016H T16 AB:0FF DB:03 MREQ 5 2 fMWrite SP - R#017H T17 AB:0FF DB:03 MREQ WR 5 3 fMWrite Y WZ W NOT_PC!#end#if pla[35] : ret "4,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C9 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y mr#005H T5 AB:0FF DB:-- 2 1 fMRead SP W#006H T6 AB:0FF DB:01 MREQ RD 2 2 fMRead SP + R#007H T7 AB:0FF DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#008H T8 AB:000 DB:-- 3 1 fMRead SP W#009H T9 AB:000 DB:C9 MREQ RD 3 2 fMRead SP + R#010H T10 AB:000 DB:C9 MREQ RD 3 3 fMRead Y WZ W W <h d < R NOT_PC!#end#if pla[45] : ret cc "5/(5,3,3)"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C0 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * *#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y#005H T5 AB:000 DB:-- 1 5 mr CC#006H T6 AB:001 DB:-- 2 1 fMRead SP W#007H T7 AB:001 DB:01 MREQ RD 2 2 fMRead SP + R#008H T8 AB:001 DB:01 MREQ RD 2 3 fMRead mr Z <l d < R#009H T9 AB:002 DB:-- 3 1 fMRead SP W#010H T10 AB:002 DB:02 MREQ RD 3 2 fMRead SP + R#011H T11 AB:002 DB:02 MREQ RD 3 3 fMRead Y WZ W W <h d < R NOT_PC!#end#if pla[46] : reti/retn "4,3,3"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:45 M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr RETN IFF1<=IFF2#009H T5 AB:001 DB:-- 2 1 fMRead SP W#010H T6 AB:001 DB:45 MREQ RD 2 2 fMRead SP + R#011H T7 AB:001 DB:45 MREQ RD 2 3 fMRead mr Z <l d < R#012H T8 AB:002 DB:-- 3 1 fMRead SP W#013H T9 AB:002 DB:01 MREQ RD 3 2 fMRead SP + R#014H T10 AB:002 DB:01 MREQ RD 3 3 fMRead Y WZ W W <h d < R NOT_PC!#end#if pla[56] : rst p "5,3,3"#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:C7 M1 MREQ RD 1 2 fMFetch#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch WZ < R < op1 0 "MASK_543, RST_NMI, RST_INT" RST instruction also executes on NMI and INT#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y#005H T5 AB:000 DB:-- 1 5 mw SP - W d < R >s0 bus Store im2 vector into the ALU op1#006H T6 AB:000 DB:-- 2 1 fMWrite - P PCh >h u > W#007H T7 AB:000 DB:00 MREQ 2 2 fMWrite SP - R#008H T8 AB:000 DB:00 MREQ WR 2 3 fMWrite mw SP - W#009H T9 AB:0FF DB:-- 3 1 fMWrite - P PCl >l > W#010H T10 AB:0FF DB:01 MREQ 3 2 fMWrite SP - R#011H T11 AB:0FF DB:01 MREQ WR 3 3 fMWrite INT INT WZ W NOT_PC! Value on the bus into ALU OP// INTR IM2 continues here... Extension for IM2 interrupt mode#012H T12 AB:001 DB:-- 4 1 fMRead I* W <l u < op1#013H T13 AB:001 DB:01 MREQ RD 4 2 fMRead > + R >l d >s0 bus#014H T14 AB:001 DB:01 MREQ RD 4 3 fMRead mr Z <l d < R#015H T15 AB:002 DB:-- 5 1 fMRead I* W <l u < op1#016H T16 AB:002 DB:02 MREQ RD 5 2 fMRead + R#017H T17 AB:002 DB:02 MREQ RD 5 3 fMRead Y WZ W W <h d < R NOT_PC!#end// CB-Table opcodes#if pla[49] : Every CB with IX/IY "4,3,5,+"#005H T1 AB:001 DB:-- M1 1 1 fMFetch#006H T2 AB:001 DB:CB M1 MREQ RD 1 2 fMFetch#007H T3 AB:001 DB:-- RFSH 1 3 fMFetch AF > > >s0 bus bus * * * * * * CB#008H T4 AB:001 DB:-- RFSH MREQ 1 4 fMFetch Y mr#009H T5 AB:002 DB:-- 2 1 fMRead PC W#010H T6 AB:002 DB:01 MREQ RD 2 2 fMRead PC + R#011H T7 AB:002 DB:01 MREQ RD 2 3 fMRead mr#012H T8 AB:003 DB:-- 3 1 fMRead PC W WZ=IX+d#013H T9 AB:003 DB:00 MREQ RD 3 2 fMRead PC + R WZ=IX+d#014H T10 AB:003 DB:00 MREQ RD 3 3 fMRead WZ=IX+d Loads the opcode byte in parallel#015H T11 AB:003 DB:-- 3 4 WZ=IX+d#016H T12 AB:003 DB:-- 3 5 mr WZ=IX+d#017H T13 AB:000 DB:-- 4 1 R >bs bus bus OpcodeToIR Loads instruction register; starts the execute cycle// Loading a new instruction immediately changes PLA wires and continues into the new effective instructions' M4/T1 cycle#end// Special Purposes PLA Entries#if pla[3] : IX/IY 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:DD M1 MREQ RD 1 2 fMFetch IX_IY#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y NO_INTS "At last M/T, inhibit interrupts"#end#if pla[44] : CB prefix 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:CB M1 MREQ RD 1 2 fMFetch CB#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y NO_INTS "At last M/T, inhibit interrupts""#end Only set CB ff and clear ED, XX ff"#if pla[51] : ED prefix 4#001H T1 AB:000 DB:-- M1 1 1 fMFetch#002H T2 AB:000 DB:ED M1 MREQ RD 1 2 fMFetch ED#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch Y Y NO_INTS "At last M/T, inhibit interrupts""#end Only set ED ff and clear CB, XX ff"#if pla[76] : ALU CP#always CP 1#001H T1 AB:000 DB:-- M1 1 1 fMFetch V Update P/V once on a high nibble phase#end Does not store the result!#if pla[78] : ALU SUB#always SUB 1#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < * V Update P/V and store result to A#end#if pla[79] : ALU SBC#always SBC 1#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < * V Update P/V and store result to A#end#if pla[80] : ALU ADC#always ADC 0#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < * V Update P/V and store result to A#end#if pla[84] : ALU ADD#always ADD 0#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < * V Update P/V and store result to A#end#if pla[85] : ALU AND#always AND 0#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < * P Update P/V and store result to A#002H T2 AB:000 DB:A0 M1 MREQ RD 1 2 fMFetch 0 AND clears CF#end#if pla[86] : ALU OR#always OR 0#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < * P Update P/V and store result to A#002H T2 AB:000 DB:B0 M1 MREQ RD 1 2 fMFetch 0 OR clears CF#end#if pla[88] : ALU XOR#always XOR 0#001H T1 AB:000 DB:-- M1 1 1 fMFetch A < * P Update P/V and store result to A#002H T2 AB:000 DB:A8 M1 MREQ RD 1 2 fMFetch 0 XOR clears CF#end// State machine to compute (IX+d)#if ixy_d : Compute WZ=IX+d#001H T1 any M-cycle ? 1 d < R alu >s0 bus * "Reads ""d"" from the data latch"#002H T2 ? 2 L >l d alu >s0 bus L ADD *#003H T3 ? 3 Z <l u alu < res H ADC W#004H T4 ? 4 H > alu >s0 0 bus L ADC * R ?SF_NEG Stores result into WZ#005H T5 ? 5 WZ W W <h alu < res H ADC * "?SF_NEG, CLR_IX_IY" and disables any further use of IX/IY#end// Default instruction fetch (M1) state machine#if 1 :#001H T1 AB:000 DB:-- M1 1 1 fMFetch PC + RL Fetch/execute overlap#002H T2 AB:000 DB:CB M1 MREQ RD 1 2 fMFetch IR W R "CLR_IX_IY, CLR_CB_ED, OpcodeToIR, OverrideIR" Prepares for the next execution cycle#003H T3 AB:000 DB:-- RFSH 1 3 fMFetch IR + RL Limit6 "Fetch opcode, evaluate flags"#004H T4 AB:000 DB:-- RFSH MREQ 1 4 fMFetch EvalCond#end"// For all undecoded instructions, at M1/T4 advance a byte to the next opcode"#if ~validPLA : A catch-all case#001H 1 4 Y#end// The last cycle of an instruction is also the first cycle of the next one#if setM1 :#always PC W Fetch/execute overlap#end
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