;
#if EM_Z80
- #define OPC_TABSTART 0x1B00
-#else
- #define OPC_TABSTART 0x1200
-#endif
.dseg
z_regs:
-z_b: .byte 1
-z_c: .byte 1
-z_d: .byte 1
-z_e: .byte 1
-z_h: .byte 1
-z_l: .byte 1
-
- .equ oz_b = 0
- .equ oz_c = 1
- .equ oz_d = 2
- .equ oz_e = 3
- .equ oz_h = 4
- .equ oz_l = 5
-
-
-#if EM_Z80
-z_b2: .byte 1
-z_c2: .byte 1
-z_d2: .byte 1
-z_e2: .byte 1
-z_h2: .byte 1
-z_l2: .byte 1
-z_f2: .byte 1
-z_a2: .byte 1
- .equ r2ofs = z_b2-z_b
- .equ oz_b2 = 6
- .equ oz_c2 = 7
- .equ oz_d2 = 8
- .equ oz_e2 = 9
- .equ oz_h2 = 10
- .equ oz_l2 = 11
- .equ oz_f2 = 12
- .equ oz_a2 = 13
-
-z_xh: .byte 1
-z_xl: .byte 1
-z_yh: .byte 1
-z_yl: .byte 1
-
-z_i: .byte 1
-z_r: .byte 1
- .equ oz_xh = 14
- .equ oz_xl = 15
- .equ oz_yh = 16
- .equ oz_yl = 17
- .equ oz_i = 18
- .equ oz_r = 19
-
-z_istat: .byte 1
- .equ oz_istat = 20
+z_c2:
+ .equ oz_c2 = z_c2 - z_regs
+ .byte 1
+z_b2:
+ .equ oz_b2 = z_b2 - z_regs
+ .byte 1
+z_e2:
+ .equ oz_e2 = z_e2 - z_regs
+ .byte 1
+z_d2:
+ .equ oz_d2 = z_d2 - z_regs
+ .byte 1
+z_l2:
+ .equ oz_l2 = z_l2 - z_regs
+ .byte 1
+z_h2:
+ .equ oz_h2 = z_h2 - z_regs
+ .byte 1
+z_f2:
+ .equ oz_f2 = z_f2 - z_regs
+ .byte 1
+z_a2:
+ .equ oz_a2 = z_a2 - z_regs
+ .byte 1
+
+z_xl:
+ .equ oz_xl = z_xl - z_regs
+ .byte 1
+z_xh:
+ .equ oz_xh = z_xh - z_regs
+ .byte 1
+z_yl:
+ .equ oz_yl = z_yl - z_regs
+ .byte 1
+z_yh:
+ .equ oz_yh = z_yh - z_regs
+ .byte 1
+z_i:
+ .equ oz_i = z_i - z_regs
+ .byte 1
+z_r:
+ .equ oz_r = z_r - z_regs
+ .byte 1
+
+z_istat:
+ .equ oz_istat = z_istat - z_regs
+ .byte 1
.equ IM_MASK = 0x03 ;Mask IM 0..2
.equ IM0 = 0
.equ IFF1 = 2 ;IFF1 Flag
.equ IFF2 = 3 ;IFF2 Flag
-
#endif
.cseg
ldiw z_pc,IPLADDR
ldiw y,z_regs
- cbi flags,trace
clr intstat
printnewline
;TODO: hier kommt die Interruptbehandlung rein
- cpse intstat,_0 ;Fast path if no trace, int, break, ...
+ cpse intstat,_0 ;Fast path if no trace, int, break, ...
rjmp int_test
int_instr:
int_test:
sbrs intstat,i_trace
rjmp int_notrace
+ sbrc intstat,i_halt
+ rjmp int_notrace
cpi z_pch,DBG_TRACE_BOTTOM
brlo int_notrace
cpi z_pch,DBG_TRACE_TOP
;--------------------------------------------------
; init opcode table
;
-; opctable opc_name
+; opctable opc_name, pos
;
-#if EM_Z80
- .equ numtabs_ = 5
-#else
- .equ numtabs_ = 1
-#endif
.macro opctable
+
+ .set opcjmp_table_pos_ = (@1 + 255) & -0x100 ;0xff00
+
.ifndef opc_tabnext_
- .if OPC_TABSTART & 0x00ff
- .error "OPC_TABSTART is not page aligned!"
- .endif
- .set opc_tabnext_ = OPC_TABSTART
- .equ opc_tablow_ = opc_tabnext_
- .equ opc_tabend_ = opc_tablow_ + (256 * numtabs_) + 128
- .equ sz53p_table_pos = opc_tablow_ + (256 * numtabs_)
+ .set opc_tabnext_ = opcjmp_table_pos_
+
+ .set opc_tablow_0 = 0
+ .set opc_tablen_0 = 0
+ .set opc_tablow_1 = 0
+ .set opc_tablen_1 = 0
.endif
- .set opcjmp_table_pos_ = opc_tabnext_
- .set opc_tabnext_ = opc_tabnext_ + 256
+ .if opcjmp_table_pos_ < opc_tabnext_
+ .set opcjmp_table_pos_ = opc_tabnext_
+ .endif
+
+ .if opc_tablow_0 == 0
+ .set opc_tablow_0 = opcjmp_table_pos_
+ .set opc_tablen_0 = 256
+;.message "add tab_0"
+ .elif opc_tablow_1 == 0
+ .if (opc_tablow_0 + opc_tablen_0) == opcjmp_table_pos_
+ .set opc_tablen_0 = opc_tablen_0 + 256
+;.message " tab_0++"
+ .else
+ .set opc_tablow_1 = opcjmp_table_pos_
+ .set opc_tablen_1 = 256
+;.message "add tab_1"
+ .endif
+ .else
+ .if (opc_tablow_1 + opc_tablen_1) == opcjmp_table_pos_
+ .set opc_tablen_1 = opc_tablen_1 + 256
+;.message "tab_1++"
+ .else
+ .error "Tab full_"
+ .endif
+ .endif
+ .set opc_tabnext_ = opcjmp_table_pos_ + 256
.equ @0 = opcjmp_table_pos_
- .set todo_table_pos_ = 0
+.endm
+;--------------------------------------------------
+;
+; checkspace frompos, size
+;
+.macro checkspace
+
+ .ifdef opc_tablow_0
+ .if @0 <= opc_tablow_0
+ .if (@0 + @1) > opc_tablow_0
+ .org opc_tablow_0 + opc_tablen_0
+; .message "skip tab, remove tab_0"
+ .if opc_tablow_1 == 0
+ .set opc_tablow_0 = 0
+ .set opc_tablen_0 = 0
+ .else
+ .set opc_tablow_0 = opc_tablow_1
+ .set opc_tablen_0 = opc_tablen_1
+ .set opc_tablow_1 = 0
+ .set opc_tablen_1 = 0
+; .message "remove tab_1"
+ .endif
+ .endif
+ .endif
+ .endif
.endm
;--------------------------------------------------
.set store_ = (do_@2 != do_store_nop) ; must jump to store action
.set cnt_ = fetch_ + op_ + store_ ; number of actions for this instruction
- .set action_1_ = 0
- .set action_2_ = 0
- .set action_3_ = 0
- .if cnt_ == 1
+ .set done_ = 0
+ .set pc_save_ = PC
+
+ .if cnt_ == 0 ; nothing to do (nop)
+ .org opcjmp_table_pos_
+ ret ; go back to main
+ .org pc_save_
+ .set done_ = 1
+ .elif cnt_ == 1 ; jump direct to action
.if fetch_
.set action_1_ = do_@0
.elif op_
.else
.set action_1_ = do_@2
.endif
- .elif cnt_ == 2
- .if fetch_
- .set action_1_ = do_@0
- .if op_
- .set action_2_ = do_@1
- .else
- .set action_2_ = do_@2
- .endif
- .else
- .set action_1_ = do_@1
- .set action_2_ = do_@2
- .endif
- .elif cnt_ == 3
- .set action_1_ = do_@0
- .set action_2_ = do_@1
- .set action_3_ = do_@2
- .endif
-
- .set longdist_ = 0
- .set pc_save_ = PC
-
- .org opcjmp_table_pos_
- .set opcjmp_table_pos_ = opcjmp_table_pos_ + 1
-
-
- .if cnt_ == 0 ; nothing to do (nop)
- ret ; go back to main
- .elif cnt_ == 1 ; jump direct to action
- .if (PC - action_1_) > 2047
- .set longdist_ = 1 ; target action out of reach for rel jump
- .else
+ .if (opcjmp_table_pos_ - action_1_) <= 2047
+ .org opcjmp_table_pos_
rjmp action_1_ ; do op and return to main
+ .org pc_save_
+ .set done_ = 1
.endif
.endif
+ .if !done_
- .set done_ = 0
- .if (cnt_ > 1) || longdist_
- ; two or tree actions
.if defined (l_@0_@1_@2)
- .if (PC - l_@0_@1_@2) <= 2047
- rjmp l_@0_@1_@2 ; generate a jump to action table
- .set done_ = 1
- .endif
- .endif
-
- .if !done_
-
- .if todo_table_pos_ == 0
- .set todo_table_pos_ = opcjmp_table_pos_ - 2048
- .if todo_table_pos_ < pc_save_
- .set todo_table_pos_ = pc_save_
- .endif
- .endif
-
- .if todo_table_pos_ < opc_tablow_
- .if todo_table_pos_ + 2*cnt_ > opc_tablow_
- .set todo_table_pos_ = opc_tabend_
- .endif
- .endif
- .if defined (l_@0_@1_@2)
- rjmp todo_table_pos_
- .org todo_table_pos_
+ .if (opcjmp_table_pos_ - l_@0_@1_@2) <= 2047
+ .org opcjmp_table_pos_
+ rjmp l_@0_@1_@2 ; generate a jump to action table
+ .org pc_save_
+ .else
+ checkspace pc_save_, 2
+ .set pc_save_ = PC
+ .org opcjmp_table_pos_
+ rjmp pc_save_
+ .org pc_save_
jmp l_@0_@1_@2
- .set todo_table_pos_ = PC
- .set done_ = 1
.endif
- .endif
- .if !done_
+ .else
+
+ checkspace pc_save_, 2*cnt_
+ .set pc_save_ = PC
- .equ l_@0_@1_@2 = todo_table_pos_ ; make a label
+ .org opcjmp_table_pos_
+ .equ l_@0_@1_@2 = pc_save_ ; make a label
rjmp l_@0_@1_@2 ; generate a jump to action table
.org l_@0_@1_@2
.endif
.endif
- .set todo_table_pos_ = PC
-
.endif
.endif
- .if todo_table_pos_ == 0
- .org pc_save_
- .else
- .org todo_table_pos_
- .endif
+ .set opcjmp_table_pos_ = opcjmp_table_pos_ + 1
.endm
; ------------ Fetch phase stuff -----------------
+
fetch_ops:
.equ do_fetch_nop = do_x_nop
+do_fetch_rst:
+ movw x,z_pcl
+ sbiw x,1
+ mem_read_d opl
+ andi opl,0x38
+ ldi oph,0
+ ret
.macro m_do_fetch_a
mov opl,z_a
; ret
.macro m_do_fetch_b
- ldd opl,y+oz_b
+ mov opl,z_b
.endm
.equ do_fetch_b = 0
+; mov opl,z_b
; ldd opl,y+oz_b
; ret
.macro m_do_fetch_c
- ldd opl,y+oz_c
+ mov opl,z_c
.endm
.equ do_fetch_c = 0
+; mov opl,z_c
; ldd opl,y+oz_c
; ret
.macro m_do_fetch_d
- ldd opl,y+oz_d
+ mov opl,z_d
.endm
.equ do_fetch_d = 0
; ret
.macro m_do_fetch_e
- ldd opl,y+oz_e
+ mov opl,z_e
.endm
.equ do_fetch_e = 0
; ret
.macro m_do_fetch_h
- ldd opl,y+oz_h
+ mov opl,z_h
.endm
.equ do_fetch_h = 0
-; ldd opl,y+oz_h
+; mov opl,z_h
; ret
.macro m_do_fetch_l
- ldd opl,y+oz_l
+ mov opl,z_l
.endm
.equ do_fetch_l = 0
-; ldd opl,y+oz_l
+; mov opl,z_l
; ret
do_fetch_af:
- mov opl,z_flags
- mov oph,z_a
+ movw opl,z_flags
ret
-do_fetch_bc:
- ldd opl,y+oz_c
- ldd oph,y+oz_b
- ret
+.macro m_do_fetch_bc
+ movw opl,z_c
+.endm
-do_fetch_de:
- ldd opl,y+oz_e
- ldd oph,y+oz_d
- ret
+.equ do_fetch_bc = 0
+; movw opl,z_c
+; ret
+
+.macro m_do_fetch_de
+ movw opl,z_e
+.endm
-do_fetch_hl:
- ldd opl,y+oz_l
- ldd oph,y+oz_h
+.equ do_fetch_de = 0
+; ldd opl,y+oz_e
+; ldd oph,y+oz_d
ret
+.macro m_do_fetch_hl
+ movw opl,z_l
+.endm
+
+.equ do_fetch_hl = 0
+; movw opl,z_l
+; ret
+
.macro m_do_fetch_sp
movw opl,z_spl
.endm
; ret
do_fetch_mbc:
- ldd xh,y+oz_b
- ldd xl,y+oz_c
+ movw x,z_c
mem_read_d z_a
ret
do_fetch_mde:
- ldd xh,y+oz_d
- ldd xl,y+oz_e
+ movw x,z_e
+; ldd xh,y+oz_d
+; ldd xl,y+oz_e
mem_read_d z_a
ret
do_fetch_mhl:
- ldd xh,y+oz_h
- ldd xl,y+oz_l
+ movw x,z_l
mem_read_d opl
ret
adiw z_pcl,1
ret
-do_fetch_rst:
- movw x,z_pcl
- sbiw x,1
- mem_read_d opl
- andi opl,0x38
- ldi oph,0
- ret
-
; ------------ Store phase stuff -----------------
store_ops:
;.endm
;.equ do_store_b = 0
do_store_b:
- std y+oz_b,opl
+ mov z_b,opl
ret
do_store_c:
- std y+oz_c,opl
+ mov z_c,opl
ret
do_store_d:
- std y+oz_d,opl
+ mov z_d,opl
ret
do_store_e:
- std y+oz_e,opl
+ mov z_e,opl
ret
do_store_h:
- std y+oz_h,opl
+ mov z_h,opl
ret
do_store_l:
- std y+oz_l,opl
+ mov z_l,opl
ret
do_store_af:
- mov z_a,oph
- mov z_flags,opl
+ movw z_flags,opl
ret
do_store_bc:
- std y+oz_b,oph
- std y+oz_c,opl
+ movw z_c,opl
ret
do_store_de:
- std y+oz_d,oph
- std y+oz_e,opl
+ movw z_e,opl
+; std y+oz_d,oph
+; std y+oz_e,opl
ret
do_store_hl:
- std y+oz_h,oph
- std y+oz_l,opl
+ movw z_l,opl
ret
do_store_mbc:
- ldd xh,y+oz_b
- ldd xl,y+oz_c
+ movw x,z_c
mem_write_s z_a
ret
do_store_mde:
- ldd xh,y+oz_d
- ldd xl,y+oz_e
+ movw x,z_e
+; ldd xh,y+oz_d
+; ldd xl,y+oz_e
mem_write_s z_a
ret
do_store_mhl:
- ldd xh,y+oz_h
- ldd xl,y+oz_l
+ movw x,z_l
mem_write_s opl
ret
do_op_inc:
#if EM_Z80
+#if 1
+ andi z_flags,(1<<ZFL_C) ; preserve C-, Clear N-flag
+ subi opl,-1
+ in temp,sreg
+ sbrc temp,AVR_N
+ sbr z_flags,(1<<ZFL_S)
+ sbrc temp,AVR_Z
+ sbr z_flags,(1<<ZFL_Z)
+ sbrs temp,AVR_H
+ sbr z_flags,(1<<ZFL_H)
+ sbrc temp,AVR_V
+ sbr z_flags,(1<<ZFL_P)
+#else
andi z_flags,(1<<ZFL_C) ; preserve C-, Clear N-flag
ldi temp,1
add opl,temp
bmov z_flags,ZFL_Z, temp,AVR_Z
bmov z_flags,ZFL_H, temp,AVR_H
bmov z_flags,ZFL_P, temp,AVR_V
+#endif
#else /* 8080 */
andi z_flags,(1<<ZFL_C)|(1<<ZFL_H) ; preserve C- and H-flag
inc opl
#endif
ret
+#if 0
+ bst z_flags,ZFL_C ; save C flag
+ subi opl,-1
+ in temp,sreg
+ ldpmx z_flags,flagmap_tab,temp
+ bld z_flags,ZFL_C
+ ret
+#endif
+
do_op_inca:
#if EM_Z80
andi z_flags,(1<<ZFL_C) ; preserve C-, Clear N-flag
- ldi temp,1
- add z_a,temp
+ subi z_a,-1
in temp,sreg
bmov z_flags,ZFL_S, temp,AVR_N
bmov z_flags,ZFL_Z, temp,AVR_Z
- bmov z_flags,ZFL_H, temp,AVR_H
+ sbrs temp,AVR_H
+ sbr z_flags,(1<<ZFL_H)
bmov z_flags,ZFL_P, temp,AVR_V
#else /* 8080 */
andi z_flags,(1<<ZFL_C)|(1<<ZFL_H) ; preserve C- and H-flag
;|Mnemonic |SZHPNC|Description |Notes |
;----------------------------------------------------------------
;|DEC r |***V1-|Decrement |s=s-1 |
-;|DEC [HL] |***V0-|Increment |[HL]=[HL]-1 |
-;|DEC [xx+d]|***V0-|Increment |[xx+d]=[xx+d]-1 |
+;|DEC [HL] |***V1-|Increment |[HL]=[HL]-1 |
+;|DEC [xx+d]|***V1-|Increment |[xx+d]=[xx+d]-1 |
;|----------|SZHP C|---------- 8080 ----------------------------|
;|DEC r |**-P -|Increment |r=r-1 |
;|DEC [HL] |**-P -|Increment |[HL]=[HL]-1 |
do_op_deca:
#if EM_Z80
- ldi temp,1
- sub z_a,temp
+ subi z_a,1
in temp,sreg
bmov z_flags,ZFL_S, temp,AVR_N
bmov z_flags,ZFL_Z, temp,AVR_Z
sbci oph,high(-1)
ret
+do_op_incHL:
+ sub z_l,_255
+ sbc z_h,_255
+ ret
+
+do_op_incDE:
+ sub z_e,_255
+ sbc z_d,_255
+ ret
+
+do_op_incBC:
+ sub z_c,_255
+ sbc z_b,_255
+ ret
+
;----------------------------------------------------------------
;|Mnemonic |SZHPNC|Description |Notes |
;----------------------------------------------------------------
sbci oph, 0
ret
+do_op_decHL:
+ add z_l,_255
+ adc z_h,_255
+ ret
+
+do_op_decDE:
+ add z_e,_255
+ adc z_d,_255
+ ret
+
+do_op_decBC:
+ add z_c,_255
+ adc z_b,_255
+ ret
+
;----------------------------------------------------------------
;|Mnemonic |SZHPNC|Description |Notes |
;----------------------------------------------------------------
;
;
do_op_addhl:
- ldd temp,y+oz_l
- ldd temp2,y+oz_h
- add opl,temp
- adc oph,temp2
- std y+oz_l,opl
- std y+oz_h,oph
+ add z_l,opl
+ adc z_h,oph
in temp,sreg
bmov z_flags,ZFL_C, temp,AVR_C
do_z80_flags_H
;
do_op_sthl: ;store hl to mem loc in opl:h
movw xl,opl
- ldd temp,y+oz_l
- mem_write
+ mem_write_s z_l
adiw xl,1
- ldd temp,y+oz_h
- mem_write
+ mem_write_s z_h
ret
;----------------------------------------------------------------
;-----------------------------Z80--------------------------------
;
do_op_exhl:
- ldd temp,y+oz_l
- ldd temp2,y+oz_h
- std y+oz_l,opl
- std y+oz_h,oph
- movw opl,temp
+ movw temp,z_l
+ movw z_l,opl
+ movw opl,temp
ret
;----------------------------------------------------------------
; (Joe G.)
do_op_DJNZ: ; decremt B, jump B=0
- ldd temp,y+oz_b ; B in temp
- dec temp ; temp decrementieren
- std y+oz_b,temp ; temp in B
+ dec z_b ; B decrementieren
breq do_op_DJNZ_Z ; bei B=0
subi opl, 0x80 ; z_pc + e im Zweierkomplement
subi z_pcl,0x80
#else
do_op_djnz:
- ldd temp,y+oz_b
- dec temp
- std y+oz_b,temp
+ dec z_b
brne opdjnze
pop temp ; nix tun
pop temp ; direkt zurueck zu main
;|EXX |------|Exchange |qq<->qq' (except AF)|
+#if 1
+
+do_op_EXX:
+ ldd temp ,y+oz_c2
+ ldd temp2,y+oz_b2
+ std y+oz_c2,z_c
+ std y+oz_b2,z_b
+ movw z_c,temp
+
+ ldd temp ,y+oz_e2
+ ldd temp2,y+oz_d2
+ std y+oz_e2,z_e
+ std y+oz_d2,z_d
+ movw z_e,temp
+
+ ldd temp ,y+oz_l2
+ ldd temp2,y+oz_h2
+ std y+oz_l2,z_l
+ std y+oz_h2,z_h
+ movw z_l,temp
+ ret
+#else
+
do_op_EXX:
ldiw z,z_b
ldi temp3,6
brne opexx_loop
ret
+#endif
+
#else
do_op_djnz:
do_op_EXAF:
#if EM_Z80
-do_op_noni:
- sbiw z_pcl,1 ;--z_pc
- ret
-
do_op_prefixED:
mem_read_ds zl,z_pc ;zl = memReadByte(z_pc)
adiw z_pcl,1 ;++z_pc
ldi zh,high(EDjmp) ;
+;;; ldi zh,high(0) ;
ijmp
#endif
+
; ----------------------- Opcode decoding -------------------------
; Lookup table for Z80 opcodes. Translates the first byte of the instruction word into three
; operations: fetch, do something, store.
; The table is made of 256 words.
- opctable opcjmp
+ opctable opcjmp, PC ;+3*256
instr fetch_nop, op_nop, store_nop ;00 ;NOP
instr fetch_DIR16, op_nop, store_BC ;01 nn nn ;LD BC,nn
instr fetch_nop, op_nop, store_MBC ;02 ;LD (BC),A
-instr fetch_BC, op_INC16, store_BC ;03 ;INC BC
+;instr fetch_BC, op_INC16, store_BC ;03 ;INC BC
+instr fetch_nop, op_INCBC, store_nop ;03 ;INC BC
instr fetch_B, op_INC, store_B ;04 ;INC B
-instr fetch_B, op_DEC, store_B ;05 ;DEC B
+instr fetch_B, op_DEC, store_B ;05 ;DEC B
instr fetch_DIR8, op_nop, store_B ;06 ;LD B,n
instr fetch_nop, op_RLCA, store_nop ;07 ;RLCA
-instr fetch_nop, op_EXAF, store_nop ;08 ;EX AF,AF'
+instr fetch_nop, op_EXAF, store_nop ;08 ;EX AF,AF'
instr fetch_BC, op_ADDHL, store_nop ;09 ;ADD HL,BC
instr fetch_MBC, op_nop, store_nop ;0A ;LD A,(BC)
-instr fetch_BC, op_DEC16, store_BC ;0B ;DEC BC
+;instr fetch_BC, op_DEC16, store_BC ;0B ;DEC BC
+instr fetch_nop, op_DECBC, store_nop ;0B ;DEC BC
instr fetch_C, op_INC, store_C ;0C ;INC C
instr fetch_C, op_DEC, store_C ;0D ;DEC C
instr fetch_DIR8, op_nop, store_C ;0E nn ;LD C,n
instr fetch_DIR8, op_DJNZ, store_nop ;10 oo ;DJNZ o
instr fetch_DIR16, op_nop, store_DE ;11 nn nn ;LD DE,nn
instr fetch_nop, op_nop, store_MDE ;12 ;LD (DE),A
-instr fetch_DE, op_INC16, store_DE ;13 ;INC DE
+;instr fetch_DE, op_INC16, store_DE ;13 ;INC DE
+instr fetch_nop, op_INCDE, store_nop ;13 ;INC DE
instr fetch_D, op_INC, store_D ;14 ;INC D
-instr fetch_D, op_DEC, store_D ;15 ;DEC D
+instr fetch_D, op_DEC, store_D ;15 ;DEC D
instr fetch_DIR8, op_nop, store_D ;16 nn ;LD D,n
instr fetch_nop, op_RLA, store_nop ;17 ;RLA
instr fetch_DIR8, op_nop, store_pcrel ;18 oo ;JR o
instr fetch_DE, op_ADDHL, store_nop ;19 ;ADD HL,DE
instr fetch_MDE, op_nop, store_nop ;1A ;LD A,(DE)
-instr fetch_DE, op_DEC16, store_DE ;1B ;DEC DE
+;instr fetch_DE, op_DEC16, store_DE ;1B ;DEC DE
+instr fetch_nop, op_DECDE, store_nop ;1B ;DEC DE
instr fetch_E, op_INC, store_E ;1C ;INC E
-instr fetch_E, op_DEC, store_E ;1D ;DEC E
+instr fetch_E, op_DEC, store_E ;1D ;DEC E
instr fetch_DIR8, op_nop, store_E ;1E nn ;LD E,n
instr fetch_nop, op_RRA, store_nop ;1F ;RRA
instr fetch_DIR8, op_IFNZ, store_pcrel ;20 oo ;JR NZ,o
instr fetch_DIR16, op_nop, store_HL ;21 nn nn ;LD HL,nn
instr fetch_DIR16, op_STHL, store_nop ;22 nn nn ;LD (nn),HL
-instr fetch_HL, op_INC16, store_HL ;23 ;INC HL
-instr fetch_H, op_INC, store_H ;24 ;INC H
-instr fetch_H, op_DEC, store_H ;25 ;DEC H
-instr fetch_DIR8, op_nop, store_H ;26 nn ;LD H,n
-instr fetch_A, op_DAA, store_A ;27 ;DAA
+;instr fetch_HL, op_INC16, store_HL ;23 ;INC HL
+instr fetch_nop, op_INCHL, store_nop ;23 ;INC HL
+instr fetch_H, op_INC, store_H ;24 ;INC H
+instr fetch_H, op_DEC, store_H ;25 ;DEC H
+instr fetch_DIR8, op_nop, store_H ;26 nn ;LD H,n
+instr fetch_A, op_DAA, store_A ;27 ;DAA
instr fetch_DIR8, op_IFZ, store_pcrel ;28 oo ;JR Z,o
instr fetch_HL, op_ADDHL, store_nop ;29 ;ADD HL,HL
instr fetch_DIR16, op_RMEM16, store_HL ;2A nn nn ;LD HL,(nn)
-instr fetch_HL, op_DEC16, store_HL ;2B ;DEC HL
-instr fetch_L, op_INC, store_L ;2C ;INC L
-instr fetch_L, op_DEC, store_L ;2D ;DEC L
-instr fetch_DIR8, op_nop, store_L ;2E nn ;LD L,n
-instr fetch_nop, op_CPL, store_nop ;2F ;CPL
+;instr fetch_HL, op_DEC16, store_HL ;2B ;DEC HL
+instr fetch_nop, op_DECHL, store_nop ;2B ;DEC HL
+instr fetch_L, op_INC, store_L ;2C ;INC L
+instr fetch_L, op_DEC, store_L ;2D ;DEC L
+instr fetch_DIR8, op_nop, store_L ;2E nn ;LD L,n
+instr fetch_nop, op_CPL, store_nop ;2F ;CPL
instr fetch_DIR8, op_IFNC, store_pcrel ;30 oo ;JR NC,o
instr fetch_DIR16, op_nop, store_SP ;31 nn nn ;LD SP,nn
instr fetch_DIR16, op_nop, store_AM ;32 nn nn ;LD (nn),A
instr fetch_SP, op_INC16, store_SP ;33 ;INC SP
instr fetch_MHL, op_INC, store_MHL ;34 ;INC (HL)
-instr fetch_MHL, op_DEC, store_MHL ;35 ;DEC (HL)
+instr fetch_MHL, op_DEC, store_MHL ;35 ;DEC (HL)
instr fetch_DIR8, op_nop, store_MHL ;36 nn ;LD (HL),n
instr fetch_nop, op_SCF, store_nop ;37 ;SCF
instr fetch_DIR8, op_IFC, store_pcrel ;38 oo ;JR C,o
instr fetch_SP, op_ADDHL, store_nop ;39 ;ADD HL,SP
-instr fetch_DIR16, op_RMEM8, store_A ;3A nn nn ;LD A,(nn)
-instr fetch_SP, op_DEC16, store_SP ;3B ;DEC SP
+instr fetch_DIR16, op_RMEM8, store_A ;3A nn nn ;LD A,(nn)
+instr fetch_SP, op_DEC16, store_SP ;3B ;DEC SP
instr fetch_nop, op_INCA, store_nop ;3C ;INC A
-instr fetch_nop, op_DECA, store_nop ;3D ;DEC A
-instr fetch_DIR8, op_nop, store_A ;3E nn ;LD A,n
-instr fetch_nop, op_CCF, store_nop ;3F ;CCF (Complement Carry Flag, gvd)
+instr fetch_nop, op_DECA, store_nop ;3D ;DEC A
+instr fetch_DIR8, op_nop, store_A ;3E nn ;LD A,n
+instr fetch_nop, op_CCF, store_nop ;3F ;CCF (Complement Carry Flag, gvd)
instr fetch_nop, op_nop, store_nop ;40 ;LD B,B
instr fetch_C, op_nop, store_B ;41 ;LD B,C
instr fetch_D, op_nop, store_B ;42 ;LD B,D
instr fetch_L, op_ORA, store_nop ;B5 ;OR A,L
instr fetch_MHL, op_ORA, store_nop ;B6 ;OR A,(HL)
instr fetch_A, op_ORA, store_nop ;B7 ;OR A,A
-instr fetch_B, op_CPFA, store_nop ;B8 ;CP A,B
-instr fetch_C, op_CPFA, store_nop ;B9 ;CP A,C
-instr fetch_D, op_CPFA, store_nop ;BA ;CP A,D
-instr fetch_E, op_CPFA, store_nop ;BB ;CP A,E
-instr fetch_H, op_CPFA, store_nop ;BC ;CP A,H
-instr fetch_L, op_CPFA, store_nop ;BD ;CP A,L
-instr fetch_MHL, op_CPFA, store_nop ;BE ;CP A,(HL)
-instr fetch_A, op_CPFA, store_nop ;BF ;CP A,A
+instr fetch_B, op_CPFA, store_nop ;B8 ;CP A,B
+instr fetch_C, op_CPFA, store_nop ;B9 ;CP A,C
+instr fetch_D, op_CPFA, store_nop ;BA ;CP A,D
+instr fetch_E, op_CPFA, store_nop ;BB ;CP A,E
+instr fetch_H, op_CPFA, store_nop ;BC ;CP A,H
+instr fetch_L, op_CPFA, store_nop ;BD ;CP A,L
+instr fetch_MHL, op_CPFA, store_nop ;BE ;CP A,(HL)
+instr fetch_A, op_CPFA, store_nop ;BF ;CP A,A
instr fetch_nop, op_IFNZ, store_RET ;C0 ;RET NZ
instr fetch_nop, op_POP16, store_BC ;C1 ;POP BC
instr fetch_DIR16, op_IFNZ, store_PC ;C2 nn nn ;JP NZ,nn
instr fetch_DIR8, op_SUBFA, store_nop ;D6 nn ;SUB n
instr fetch_RST, op_nop, store_CALL ;D7 ;RST 10H
instr fetch_nop, op_IFC, store_RET ;D8 ;RET C
-instr fetch_nop, op_EXX, store_nop ;D9 ;EXX
+instr fetch_nop, op_EXX, store_nop ;D9 ;EXX
instr fetch_DIR16, op_IFC, store_PC ;DA nn nn ;JP C,nn
instr fetch_DIR8, op_INA, store_nop ;DB nn ;IN A,(n)
instr fetch_DIR16, op_IFC, store_CALL ;DC nn nn ;CALL C,nn
instr fetch_nop, op_IFPO, store_RET ;E0 ;RET PO
instr fetch_nop, op_POP16, store_HL ;E1 ;POP HL
instr fetch_DIR16, op_IFPO, store_PC ;E2 nn nn ;JP PO,nn
-instr fetch_MSP, op_EXHL, store_MSP ;E3 ;EX (SP),HL
+instr fetch_MSP, op_EXHL, store_MSP ;E3 ;EX (SP),HL
instr fetch_DIR16, op_IFPO, store_CALL ;E4 nn nn ;CALL PO,nn
instr fetch_HL, op_PUSH16, store_nop ;E5 ;PUSH HL
instr fetch_DIR8, op_ANDA, store_nop ;E6 nn ;AND n
instr fetch_nop, op_IFPE, store_RET ;E8 ;RET PE
instr fetch_HL, op_nop, store_PC ;E9 ;JP HL
instr fetch_DIR16, op_IFPE, store_PC ;EA nn nn ;JP PE,nn
-instr fetch_DE, op_EXHL, store_DE ;EB ;EX DE,HL
+instr fetch_DE, op_EXHL, store_DE ;EB ;EX DE,HL
instr fetch_DIR16, op_IFPE, store_CALL ;EC nn nn ;CALL PE,nn
instr fetch_nop, op_prefixED, store_nop ;ED ;(ED opcode prefix)
instr fetch_DIR8, op_XORA, store_nop ;EE nn ;XOR n
instr fetch_nop, op_IFP, store_RET ;F0 ;RET P
instr fetch_nop, op_POP16, store_AF ;F1 ;POP AF
instr fetch_DIR16, op_IFP, store_PC ;F2 nn nn ;JP P,nn
-instr fetch_nop, op_DI, store_nop ;F3 ;DI
+instr fetch_nop, op_DI, store_nop ;F3 ;DI
instr fetch_DIR16, op_IFP, store_CALL ;F4 nn nn ;CALL P,nn
instr fetch_AF, op_PUSH16, store_nop ;F5 ;PUSH AF
instr fetch_DIR8, op_ORA, store_nop ;F6 nn ;OR n
instr fetch_nop, op_IFM, store_RET ;F8 ;RET M
instr fetch_HL, op_nop, store_SP ;F9 ;LD SP,HL
instr fetch_DIR16, op_IFM, store_PC ;FA nn nn ;JP M,nn
-instr fetch_nop, op_EI, store_nop ;FB ;EI
+instr fetch_nop, op_EI, store_nop ;FB ;EI
instr fetch_DIR16, op_IFM, store_CALL ;FC nn nn ;CALL M,nn
instr fetch_nop, op_prefixFD, store_nop ;FD ;(FD opcode prefix)
-instr fetch_DIR8, op_CPFA, store_nop ;FE nn ;CP n
+instr fetch_DIR8, op_CPFA, store_nop ;FE nn ;CP n
instr fetch_RST, op_nop, store_CALL ;FF ;RST 38H
-do_fetch_0:
- ldi opl,0
+ checkspace PC, 2
+
+do_op_noni:
+ sbiw z_pcl,1 ;--z_pc
ret
+ checkspace PC, 16
+
do_fetch_dir8_2:
movw xl,z_pcl
adiw xl,1
mem_read_d opl
ret
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|IN r,[C] |***P0-|Input |r=[C] |
-;
+ checkspace PC, 5
-do_op_in: ; in opl,(opl)
-.if PORT_DEBUG
- push opl
- cp opl,_0 ; don't debug port 0 (con stat)
- breq dbg_op_in_1
- printnewline
- printstring "Port read: ("
- mov temp,opl
- lcall printhex
- printstring ") -> "
-dbg_op_in_1:
-.endif
+do_fetch_xh:
+ sbis flags,prefixfd
+ ldd opl,y+oz_xh
+ sbic flags,prefixfd
+ ldd opl,y+oz_yh
+ ret
- mov temp2,opl
- lcall portRead
- mov opl,temp
- bst z_flags,ZFL_C ;save Carry
- ldpmx z_flags,sz53p_tab,temp ;S,Z,P
- bld z_flags,ZFL_C
+ checkspace PC, 5
-.if PORT_DEBUG
- pop temp
- cp temp,_0
- breq dbg_op_in_2
- lcall printhex
- printstring " "
-dbg_op_in_2:
-.endif
+do_fetch_xl:
+ sbis flags,prefixfd
+ ldd opl,y+oz_xl
+ sbic flags,prefixfd
+ ldd opl,y+oz_yl
ret
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|OUT [C],r |------|Output |[C]=r |
-;
-do_op_out: ; out (c),opl
-.if PORT_DEBUG
- printnewline
- printstring "Port write: "
- mov temp,opl
- lcall printhex
- printstring " -> ("
- ldd temp,y+oz_c
- lcall printhex
- printstring ") "
-.endif
- mov temp,opl
- ldd temp2,y+oz_c
- lcall portWrite
- ret
+ checkspace PC, 41
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|LD dst,src|------|Load |dst=src |
-;
+do_fetch_mxx:
+ sbic flags,prefixfd
+ rjmp fetchmxx_fd
+ ldd xh,y+oz_xh
+ ldd xl,y+oz_xl
+ rjmp fetchmxx1
+fetchmxx_fd:
+ ldd xh,y+oz_yh
+ ldd xl,y+oz_yl
+fetchmxx1:
+ mem_read_ds opl, z_pc ;get displacement
+ adiw z_pcl,1
+ clr oph ;sign extend
+ tst opl
+ brpl fetchmxx2
+ com oph
+fetchmxx2:
+ add xl,opl ;add displacement
+ adc xh,oph
+ mem_read_d opl ;get operand
+ ret ;(Ix+d) still in xl,xh
-do_op_stbc: ;store bc to mem loc in opl:h
- movw xl,opl
- ldd temp,y+oz_c
- mem_write
- adiw xl,1
- ldd temp,y+oz_b
- mem_write
+
+ checkspace PC, 8
+
+do_fetch_xx:
+ sbic flags,prefixfd
+ rjmp fetchxx_fd
+ ldd opl,y+oz_xl
+ ldd oph,y+oz_xh
+ ret
+fetchxx_fd:
+ ldd opl,y+oz_yl
+ ldd oph,y+oz_yh
ret
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|LD dst,src|------|Load |dst=src |
-;
-;
-do_op_stde: ;store de to mem loc in opl:h
- movw xl,opl
- ldd temp,y+oz_e
- mem_write
- adiw xl,1
- ldd temp,y+oz_d
- mem_write
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|LD dst,src|------|Load |dst=src |
-;
-;
-do_op_stsp: ;store sp to mem loc in opl:h
- movw xl,opl
- mem_write_s z_spl
- adiw xl,1
- mem_write_s z_sph
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|ADC HL,ss |***V0*|Add with Carry |HL=HL+ss+CY |
-;
-
-do_op_ADCHL:
- ldd temp,y+oz_l
- ldd temp2,y+oz_h
- clc
- sbrc z_flags,ZFL_C
- sec
- adc opl,temp
- in temp,sreg ; save lower Z
- adc oph,temp2
- in temp2,sreg
- std y+oz_l,opl
- std y+oz_h,oph
- and temp,temp2 ; 16bit Z
- ldi z_flags,0 ; clear N
- bmov z_flags,ZFL_C, temp2,AVR_C
- bmov z_flags,ZFL_P, temp2,AVR_V
- bmov z_flags,ZFL_H, temp2,AVR_H
- bmov z_flags,ZFL_Z, temp,AVR_Z
- bmov z_flags,ZFL_S, temp2,AVR_N
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|SBC HL,ss |***V1*|Subtract with carry |HL=HL-ss-CY |
-;
-;
-do_op_sbchl:
- ldd temp,y+oz_l
- ldd temp2,y+oz_h
- cp temp,opl ; set z
- clc
- sbrc z_flags,ZFL_C
- sec
- sbc temp,opl
- sbc temp2,oph
- std y+oz_l,temp
- std y+oz_h,temp2
- in temp,sreg
- ldi z_flags,(1<<ZFL_N) ; set N
- bmov z_flags,ZFL_C, temp,AVR_C
- bmov z_flags,ZFL_P, temp,AVR_V
- bmov z_flags,ZFL_H, temp,AVR_H
- bmov z_flags,ZFL_Z, temp,AVR_Z
- bmov z_flags,ZFL_S, temp,AVR_N
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|NEG |***V1*|Negate A |A=0-A |
-
-;
-do_op_NEG:
- ldi temp,0
- sub temp,z_a
- mov z_a,temp
- in temp,sreg
- ldpmx z_flags,sz53p_tab,z_a ;S,Z,P
- bmov z_flags,ZFL_C, temp,AVR_C
- bmov z_flags,ZFL_H, temp,AVR_H
- do_z80_flags_V
- do_z80_flags_set_N
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|RETI |------|Return from Interrupt|PC=[SP]+ |
-;|RETN |------|Return from NMI | Copy IFF2 to IFF1 |
-
-
-do_op_RETI:
-do_op_RETN:
- ldd temp,y+oz_istat
- bmov temp,IFF1, temp,IFF2
- std y+oz_istat,temp
- ljmp do_store_ret
-
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|IM n |------|Interrupt Mode | (n=0,1,2)|
-
-do_op_IM0:
- ldd temp,y+oz_istat
- andi temp, ~IM_MASK
- std y+oz_istat,temp
- ret
-
-do_op_IM1:
- ldd temp,y+oz_istat
- andi temp,~IM_MASK
- ori temp,IM1
- std y+oz_istat,temp
- ret
-
-do_op_IM2:
- ldd temp,y+oz_istat
- andi temp, ~IM_MASK
- ori temp,IM2
- std y+oz_istat,temp
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|LD A,i |**0*0-|Load |(i=I,R) IFF2 --> P |
-;|LD i,A |------|Load |(i=I,R) |
-
-do_op_ldai:
- ldd z_a,y+oz_i
- rjmp op_ldar1
-
-do_op_ldar:
- ldd z_a,y+oz_r
-op_ldar1:
- bst z_flags,ZFL_C ;save C
- ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N
- bld z_flags,ZFL_C ;
- ldd temp,y+oz_istat
- bmov z_flags,ZFL_P, temp,IFF2
- ret
-
-do_op_ldia:
- std y+oz_i,z_a
- ret
-
-do_op_ldra:
- std y+oz_r,z_a
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|RLD |**0P0-|Rotate Left 4 bits |{A,[HL]}={A,[HL]}<- ##|
-;|RRD |**0P0-|Rotate Right 4 bits |{A,[HL]}=->{A,[HL]} ##|
-
-do_op_rld:
- swap opl
- mov oph,opl
- andi opl,0xf0
- andi oph,0x0f
- mov temp,z_a
- andi temp,0x0f
- or opl,temp
- mov temp,z_a
- andi temp,0xf0
- or temp,oph
- mov z_a,temp
- bst z_flags,ZFL_C ;save C
- ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N
- bld z_flags,ZFL_C ;
- ret
-
-do_op_rrd:
- mov oph,opl
- andi opl,0xf0
- andi oph,0x0f
- mov temp,z_a
- andi temp,0x0f
- or opl,temp
- swap opl
- mov temp,z_a
- andi temp,0xf0
- or temp,oph
- mov z_a,temp
- bst z_flags,ZFL_C ;save C
- ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N
- bld z_flags,ZFL_C ;
- ret
-
-
-do_fetch_xh:
- sbis flags,prefixfd
- ldd opl,y+oz_xh
- sbic flags,prefixfd
- ldd opl,y+oz_yh
- ret
-
-do_fetch_xl:
- sbis flags,prefixfd
- ldd opl,y+oz_xl
- sbic flags,prefixfd
- ldd opl,y+oz_yl
- ret
-
-
-do_fetch_mxx:
- sbic flags,prefixfd
- rjmp fetchmxx_fd
- ldd xh,y+oz_xh
- ldd xl,y+oz_xl
- rjmp fetchmxx1
-fetchmxx_fd:
- ldd xh,y+oz_yh
- ldd xl,y+oz_yl
-fetchmxx1:
- mem_read_ds opl, z_pc ;get displacement
- adiw z_pcl,1
- clr oph ;sign extend
- tst opl
- brpl fetchmxx2
- com oph
-fetchmxx2:
- add xl,opl ;add displacement
- adc xh,oph
- mem_read_d opl ;get operand
- ret ;(Ix+d) still in xl,xh
-
-
-do_fetch_xx:
- sbic flags,prefixfd
- rjmp fetchxx_fd
- ldd opl,y+oz_xl
- ldd oph,y+oz_xh
- ret
-fetchxx_fd:
- ldd opl,y+oz_yl
- ldd oph,y+oz_yh
- ret
+ checkspace PC, 5
do_store_xh:
sbis flags,prefixfd
std y+oz_yh,opl
ret
+ checkspace PC, 5
+
do_store_xl:
sbis flags,prefixfd
std y+oz_xl,opl
std y+oz_yl,opl
ret
+ checkspace PC, 37
+
do_store_mxx:
sbic flags,prefixfd
rjmp storemxx_fd
mem_write_s opl ;store operand
ret
+ checkspace PC, 10
+
do_store_mxx_0:
mem_write_s opl ;store operand
ret
+ checkspace PC, 38
+
do_store_mxx_2:
sbic flags,prefixfd
rjmp storemxx2_fd
mem_write_s opl ;store operand
ret
+ checkspace PC, 8
+
do_store_xx:
sbic flags,prefixfd
rjmp storexx_fd
;----------------------------------------------------------------
;|LD dst,src|------|Load |dst=src |
;
-;
+
+ checkspace PC, 30
+
do_op_stxx: ;store xx to mem loc in opl:h
- movw xl,opl
+ movw xl,opl
sbis flags,prefixfd
ldd temp,y+oz_xl
sbic flags,prefixfd
;|EX [SP],IX|------|Exchange |[SP]<->IX |
;|EX [SP],IY|------|Exchange |[SP]<->IY |
;
+ checkspace PC, 13
+
do_op_EXxx:
sbic flags,prefixfd
rjmp opexxx_fd
;|ADD IX,pp |--*-0*|Add |IX=IX+pp |
;|ADD IY,rr |--*-0*|Add |IY=IY+rr |
;
-;
+
+ checkspace PC, 25
+
do_op_addxx:
sbic flags,prefixfd
rjmp opadx_fd
do_z80_flags_clear_N
ret
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|LDD |--0*0-|Load and Decrement |[DE]=[HL],HL=HL-1,# |
-;|LDDR |--000-|Load, Dec., Repeat |LDD till BC=0 |
-;|LDI |--0*0-|Load and Increment |[DE]=[HL],HL=HL+1,# |
-;|LDIR |--000-|Load, Inc., Repeat |LDI till BC=0 |
-;
-
-op_LDxx_common:
- ldd zh,y+oz_h ;H
- ldd zl,y+oz_l ;L
- ldd xh,y+oz_d ;D
- ldd xl,y+oz_e ;E
- ldd oph,y+oz_b ;B
- ldd opl,y+oz_c ;C
- mem_read_ds temp, z
- mem_write_ds x, temp
- cbr z_flags,(1<<ZFL_H) | (1<<ZFL_P) | (1<<ZFL_N)
- subi opl,1
- sbci oph,0
- breq PC+2
- sbr z_flags,(1<<ZFL_P)
- std y+oz_c,opl ;C
- std y+oz_b,oph ;B
- ret
-
-do_op_LDI:
- rcall op_LDxx_common
- adiw z,1
- adiw x,1
- std y+oz_e,xl ;E
- std y+oz_d,xh ;D
- std y+oz_l,zl ;L
- std y+oz_h,zh ;H
- ret
-
-do_op_LDD:
- rcall op_LDxx_common
- sbiw z,1
- sbiw x,1
- std y+oz_e,xl ;E
- std y+oz_d,xh ;D
- std y+oz_l,zl ;L
- std y+oz_h,zh ;H
- ret
-
-do_op_LDIR:
- rcall do_op_LDI
- sbrs z_flags,ZFL_P
- ret
- sbiw z_pcl,2
- ret
-
-do_op_LDDR:
- rcall do_op_LDD
- sbrs z_flags,ZFL_P
- ret
- sbiw z_pcl,2
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|CPD |****1-|Compare and Decrement|A-[HL],HL=HL-1,BC=BC-1|
-;|CPDR |****1-|Compare, Dec., Repeat|CPD till A=[HL]or BC=0|
-;|CPI |****1-|Compare and Increment|A-[HL],HL=HL+1,BC=BC-1|
-;|CPIR |****1-|Compare, Inc., Repeat|CPI till A=[HL]or BC=0|
-
-
-op_CPxx_common:
- ldd xh,y+oz_h ; H
- ldd xl,y+oz_l ; L
- ldd zh,y+oz_b ; B
- ldd zl,y+oz_c ; C
-
- cbr z_flags,(1<<ZFL_S)|(1<<ZFL_Z)|(1<<ZFL_H)|(1<<ZFL_P)
- sbr z_flags,(1<<ZFL_N)
- mem_read ; temp = (HL)
- mov temp2,z_a
- sub temp2,temp ; A - (HL)
- brpl PC+2
- sbr z_flags,(1<<ZFL_S)
- brne PC+2
- sbr z_flags,(1<<ZFL_Z)
- brhc PC+2
- sbr z_flags,(1<<ZFL_H)
-
- sbiw z,1 ; BC--
- breq PC+2
- sbr z_flags,(1<<ZFL_P)
- std y+oz_c,zl ; C
- std y+oz_b,zh ; B
- ret
-
-do_op_CPI:
- rcall op_CPxx_common
- adiw x,1 ; HL++
- std y+oz_l,xl ; L
- std y+oz_h,xh ; H
- ret
-
-
-do_op_CPD:
- rcall op_CPxx_common
- sbiw x,1 ; HL--
- std y+oz_l,xl ; L
- std y+oz_h,xh ; H
- ret
-
-do_op_CPIR:
- rcall do_op_CPI
- sbrc z_flags,ZFL_Z
- ret
- sbrs z_flags,ZFL_P
- ret
- sbiw z_pcl,2
- ret
-
-do_op_CPDR:
- rcall do_op_CPD
- sbrc z_flags,ZFL_Z
- ret
- sbrs z_flags,ZFL_P
- ret
- sbiw z_pcl,2
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|INI |?*??1-|Input and Increment |[HL]=[C],HL=HL+1,B=B-1|
-;|IND |?*??1-|Input and Decrement |[HL]=[C],HL=HL-1,B=B-1|
-;|INIR |?1??1-|Input, Inc., Repeat |INI till B=0 |
-;|INDR |?1??1-|Input, Dec., Repeat |IND till B=0 |
-
-op_INxx_common:
- cbr z_flags,(1<<ZFL_Z)
- sbr z_flags,(1<<ZFL_N)
- ldd temp2,y+oz_c ;C
- lcall portRead
- ldd xh,y+oz_h ;H
- ldd xl,y+oz_l ;L
- lcall dram_write
- ldd temp,y+oz_b ;B
- dec temp
- std y+oz_b,temp ;B
- brne PC+2
- sbr z_flags,(1<<ZFL_Z)
- ret
-
-do_op_INI:
- rcall op_INxx_common
- adiw x,1
- std y+oz_l,xl ;L
- std y+oz_h,xh ;H
- ret
-
-do_op_IND:
- rcall op_INxx_common
- sbiw x,1
- std y+oz_l,xl ;L
- std y+oz_h,xh ;H
- ret
-
-do_op_INIR:
- rcall do_op_INI
- sbrc z_flags,ZFL_Z
- ret
- sbiw z_pcl,2
- ret
-
-do_op_INDR:
- rcall do_op_IND
- sbrc z_flags,ZFL_Z
- ret
- sbiw z_pcl,2
- ret
-
-;----------------------------------------------------------------
-;|Mnemonic |SZHPNC|Description |Notes |
-;----------------------------------------------------------------
-;|OUTI |?*??1-|Output and Increment |[C]=[HL],HL=HL+1,B=B-1|
-;|OUTD |?*??1-|Output and Decrement |[C]=[HL],HL=HL-1,B=B-1|
-;|OTIR |?1??1-|Output, Inc., Repeat |OUTI till B=0 |
-;|OTDR |?1??1-|Output, Dec., Repeat |OUTD till B=0 |
-
-op_OUTxx_common:
- cbr z_flags,(1<<ZFL_Z)
- sbr z_flags,(1<<ZFL_N)
- lcall dram_read ;temp = (z)
- ldd temp2,y+oz_c ;C
- lcall portWrite
- ldd temp,y+oz_b ;B
- dec temp
- std y+oz_b,temp ;B
- brne PC+2
- sbr z_flags,(1<<ZFL_Z)
- ret
-
-do_op_OUTI:
- ldd xh,y+oz_h ;H
- ldd xl,y+oz_l ;L
- adiw x,1
- std y+oz_l,xl ;L
- std y+oz_h,xh ;H
- sbiw x,1
- rcall op_OUTxx_common
- ret
-
-do_op_OUTD:
- ldd xh,y+oz_h ;H
- ldd xl,y+oz_l ;L
- sbiw x,1
- std y+oz_l,xl ;L
- std y+oz_h,xh ;H
- adiw x,1
- rcall op_OUTxx_common
- ret
-
-do_op_OTIR:
- rcall do_op_OUTI
- sbrc z_flags,ZFL_Z
- ret
- sbiw z_pcl,2
- ret
-
-do_op_OTDR:
- rcall do_op_OUTD
- sbrc z_flags,ZFL_Z
- ret
- sbiw z_pcl,2
- ret
-
- opctable EDjmp
-
-instr fetch_nop, op_nop, store_nop ;00 ;NOP
-instr fetch_nop, op_nop, store_nop ;01 ;NOP
-instr fetch_nop, op_nop, store_nop ;02 ;NOP
-instr fetch_nop, op_nop, store_nop ;03 ;NOP
-instr fetch_nop, op_nop, store_nop ;04 ;NOP
-instr fetch_nop, op_nop, store_nop ;05 ;NOP
-instr fetch_nop, op_nop, store_nop ;06 ;NOP
-instr fetch_nop, op_nop, store_nop ;07 ;NOP
-instr fetch_nop, op_nop, store_nop ;08 ;NOP
-instr fetch_nop, op_nop, store_nop ;09 ;NOP
-instr fetch_nop, op_nop, store_nop ;0A ;NOP
-instr fetch_nop, op_nop, store_nop ;0B ;NOP
-instr fetch_nop, op_nop, store_nop ;0C ;NOP
-instr fetch_nop, op_nop, store_nop ;0D ;NOP
-instr fetch_nop, op_nop, store_nop ;0E ;NOP
-instr fetch_nop, op_nop, store_nop ;0F ;NOP
-instr fetch_nop, op_nop, store_nop ;10 ;NOP
-instr fetch_nop, op_nop, store_nop ;11 ;NOP
-instr fetch_nop, op_nop, store_nop ;12 ;NOP
-instr fetch_nop, op_nop, store_nop ;13 ;NOP
-instr fetch_nop, op_nop, store_nop ;14 ;NOP
-instr fetch_nop, op_nop, store_nop ;15 ;NOP
-instr fetch_nop, op_nop, store_nop ;16 ;NOP
-instr fetch_nop, op_nop, store_nop ;17 ;NOP
-instr fetch_nop, op_nop, store_nop ;18 ;NOP
-instr fetch_nop, op_nop, store_nop ;19 ;NOP
-instr fetch_nop, op_nop, store_nop ;1A ;NOP
-instr fetch_nop, op_nop, store_nop ;1B ;NOP
-instr fetch_nop, op_nop, store_nop ;1C ;NOP
-instr fetch_nop, op_nop, store_nop ;1D ;NOP
-instr fetch_nop, op_nop, store_nop ;1E ;NOP
-instr fetch_nop, op_nop, store_nop ;1F ;NOP
-instr fetch_nop, op_nop, store_nop ;20 ;NOP
-instr fetch_nop, op_nop, store_nop ;21 ;NOP
-instr fetch_nop, op_nop, store_nop ;22 ;NOP
-instr fetch_nop, op_nop, store_nop ;23 ;NOP
-instr fetch_nop, op_nop, store_nop ;24 ;NOP
-instr fetch_nop, op_nop, store_nop ;25 ;NOP
-instr fetch_nop, op_nop, store_nop ;26 ;NOP
-instr fetch_nop, op_nop, store_nop ;27 ;NOP
-instr fetch_nop, op_nop, store_nop ;28 ;NOP
-instr fetch_nop, op_nop, store_nop ;29 ;NOP
-instr fetch_nop, op_nop, store_nop ;2A ;NOP
-instr fetch_nop, op_nop, store_nop ;2B ;NOP
-instr fetch_nop, op_nop, store_nop ;2C ;NOP
-instr fetch_nop, op_nop, store_nop ;2D ;NOP
-instr fetch_nop, op_nop, store_nop ;2E ;NOP
-instr fetch_nop, op_nop, store_nop ;2F ;NOP
-instr fetch_nop, op_nop, store_nop ;30 ;NOP
-instr fetch_nop, op_nop, store_nop ;31 ;NOP
-instr fetch_nop, op_nop, store_nop ;32 ;NOP
-instr fetch_nop, op_nop, store_nop ;33 ;NOP
-instr fetch_nop, op_nop, store_nop ;34 ;NOP
-instr fetch_nop, op_nop, store_nop ;35 ;NOP
-instr fetch_nop, op_nop, store_nop ;36 ;NOP
-instr fetch_nop, op_nop, store_nop ;37 ;NOP
-instr fetch_nop, op_nop, store_nop ;38 ;NOP
-instr fetch_nop, op_nop, store_nop ;39 ;NOP
-instr fetch_nop, op_nop, store_nop ;3A ;NOP
-instr fetch_nop, op_nop, store_nop ;3B ;NOP
-instr fetch_nop, op_nop, store_nop ;3C ;NOP
-instr fetch_nop, op_nop, store_nop ;3D ;NOP
-instr fetch_nop, op_nop, store_nop ;3E ;NOP
-instr fetch_nop, op_nop, store_nop ;3F ;NOP
-instr fetch_C, op_IN, store_B ;40 ;IN B,(C)
-instr fetch_B, op_OUT, store_nop ;41 ;OUT (C),B
-instr fetch_BC, op_SBCHL, store_nop ;42 ;SBC HL,BC
-instr fetch_DIR16, op_STBC, store_nop ;43 ;LD (nn),BC
-instr fetch_nop, op_NEG, store_nop ;44 ;NEG
-instr fetch_nop, op_RETN, store_nop ;45 ;RETN
-instr fetch_nop, op_IM0, store_nop ;46 ;IM 0
-instr fetch_nop, op_ldia, store_nop ;47 ;LD I,A
-instr fetch_C, op_IN, store_C ;48 ;IN C,(C)
-instr fetch_C, op_OUT, store_nop ;49 ;OUT (C),C
-instr fetch_BC, op_ADCHL, store_nop ;4A ;ADC HL,BC
-instr fetch_DIR16, op_RMEM16, store_BC ;4B nn nn ;LD BC,(nn)
-instr fetch_nop, op_NEG, store_nop ;4C ;NEG
-instr fetch_nop, op_RETI, store_nop ;4D ;RETI
-instr fetch_nop, op_IM0, store_nop ;4E ;IM 0
-instr fetch_nop, op_ldra, store_nop ;4F ;LD R,A
-instr fetch_C, op_IN, store_D ;50 ;IN D,(C)
-instr fetch_D, op_OUT, store_nop ;51 ;OUT (C),D
-instr fetch_DE, op_SBCHL, store_nop ;52 ;SBC HL,DE
-instr fetch_DIR16, op_STDE, store_nop ;53 nn nn ;LD (nn),DE
-instr fetch_nop, op_NEG, store_nop ;54 ;NEG
-instr fetch_nop, op_RETN, store_nop ;55 ;RETN
-instr fetch_nop, op_IM1, store_nop ;56 ;IM 1
-instr fetch_nop, op_ldai, store_nop ;57 ;LD A,I
-instr fetch_C, op_IN, store_E ;58 ;IN E,(C)
-instr fetch_E, op_OUT, store_nop ;59 ;OUT (C),E
-instr fetch_DE, op_ADCHL, store_nop ;5A ;ADC HL,DE
-instr fetch_DIR16, op_RMEM16, store_DE ;5B nn nn ;LD DE,(nn)
-instr fetch_nop, op_NEG, store_nop ;5C ;NEG
-instr fetch_nop, op_RETN, store_nop ;5D ;RETN
-instr fetch_nop, op_IM2, store_nop ;5E ;IM 2
-instr fetch_nop, op_ldar, store_nop ;5F ;LD A,R
-instr fetch_C, op_IN, store_H ;60 ;IN H,(C)
-instr fetch_H, op_OUT, store_nop ;61 ;OUT (C),H
-instr fetch_HL, op_SBCHL, store_nop ;62 ;SBC HL,HL
-instr fetch_DIR16, op_STHL, store_nop ;63 nn nn ;LD (nn),HL
-instr fetch_nop, op_NEG, store_nop ;64 ;NEG
-instr fetch_nop, op_RETN, store_nop ;65 ;RETN
-instr fetch_nop, op_IM0, store_nop ;66 ;IM 0
-instr fetch_mhl, op_RRD, store_mhl ;67 ;RRD
-instr fetch_C, op_IN, store_L ;68 ;IN L,(C)
-instr fetch_L, op_OUT, store_nop ;69 ;OUT (C),L
-instr fetch_HL, op_ADCHL, store_nop ;6A ;ADC HL,HL
-instr fetch_DIR16, op_RMEM16, store_HL ;6B nn nn ;LD HL,(nn)
-instr fetch_nop, op_NEG, store_nop ;6C ;NEG
-instr fetch_nop, op_RETN, store_nop ;6D ;RETN
-instr fetch_nop, op_IM0, store_nop ;6E ;IM 0
-instr fetch_mhl, op_RLD, store_mhl ;6F ;RLD
-instr fetch_C, op_IN, store_nop ;70 ;IN (C)
-instr fetch_0, op_OUT, store_nop ;71 ;OUT (C),0
-instr fetch_SP, op_SBCHL, store_nop ;72 ;SBC HL,SP
-instr fetch_DIR16, op_STSP, store_nop ;73 nn nn ;LD (nn),SP
-instr fetch_nop, op_NEG, store_nop ;74 ;NEG
-instr fetch_nop, op_RETN, store_nop ;75 ;RETN
-instr fetch_nop, op_IM1, store_nop ;76 ;IM 1
-instr fetch_nop, op_nop, store_nop ;77 ;NOP
-instr fetch_C, op_IN, store_A ;78 ;IN A,(C)
-instr fetch_A, op_OUT, store_nop ;79 ;OUT (C),A
-instr fetch_SP, op_ADCHL, store_nop ;7A ;ADC HL,SP
-instr fetch_DIR16, op_RMEM16, store_SP ;7B nn nn ;LD SP,(nn)
-instr fetch_nop, op_NEG, store_nop ;7C ;NEG
-instr fetch_nop, op_RETN, store_nop ;7D ;RETN
-instr fetch_nop, op_IM2, store_nop ;7E ;IM 2
-instr fetch_nop, op_nop, store_nop ;7F ;NOP
-instr fetch_nop, op_nop, store_nop ;80 ;NOP
-instr fetch_nop, op_nop, store_nop ;81 ;NOP
-instr fetch_nop, op_nop, store_nop ;82 ;NOP
-instr fetch_nop, op_nop, store_nop ;83 ;NOP
-instr fetch_nop, op_nop, store_nop ;84 ;NOP
-instr fetch_nop, op_nop, store_nop ;85 ;NOP
-instr fetch_nop, op_nop, store_nop ;86 ;NOP
-instr fetch_nop, op_nop, store_nop ;87 ;NOP
-instr fetch_nop, op_nop, store_nop ;88 ;NOP
-instr fetch_nop, op_nop, store_nop ;89 ;NOP
-instr fetch_nop, op_nop, store_nop ;8A ;NOP
-instr fetch_nop, op_nop, store_nop ;8B ;NOP
-instr fetch_nop, op_nop, store_nop ;8C ;NOP
-instr fetch_nop, op_nop, store_nop ;8D ;NOP
-instr fetch_nop, op_nop, store_nop ;8E ;NOP
-instr fetch_nop, op_nop, store_nop ;8F ;NOP
-instr fetch_nop, op_nop, store_nop ;90 ;NOP
-instr fetch_nop, op_nop, store_nop ;91 ;NOP
-instr fetch_nop, op_nop, store_nop ;92 ;NOP
-instr fetch_nop, op_nop, store_nop ;93 ;NOP
-instr fetch_nop, op_nop, store_nop ;94 ;NOP
-instr fetch_nop, op_nop, store_nop ;95 ;NOP
-instr fetch_nop, op_nop, store_nop ;96 ;NOP
-instr fetch_nop, op_nop, store_nop ;97 ;NOP
-instr fetch_nop, op_nop, store_nop ;98 ;NOP
-instr fetch_nop, op_nop, store_nop ;99 ;NOP
-instr fetch_nop, op_nop, store_nop ;9A ;NOP
-instr fetch_nop, op_nop, store_nop ;9B ;NOP
-instr fetch_nop, op_nop, store_nop ;9C ;NOP
-instr fetch_nop, op_nop, store_nop ;9D ;NOP
-instr fetch_nop, op_nop, store_nop ;9E ;NOP
-instr fetch_nop, op_nop, store_nop ;9F ;NOP
-instr fetch_nop, op_LDI, store_nop ;A0 ;LDI
-instr fetch_nop, op_CPI, store_nop ;A1 ;CPI
-instr fetch_nop, op_INI, store_nop ;A2 ;INI
-instr fetch_nop, op_OUTI, store_nop ;A3 ;OUTI
-instr fetch_nop, op_nop, store_nop ;A4 ;NOP
-instr fetch_nop, op_nop, store_nop ;A5 ;NOP
-instr fetch_nop, op_nop, store_nop ;A6 ;NOP
-instr fetch_nop, op_nop, store_nop ;A7 ;NOP
-instr fetch_nop, op_LDD, store_nop ;A8 ;LDD
-instr fetch_nop, op_CPD, store_nop ;A9 ;CPD
-instr fetch_nop, op_IND, store_nop ;AA ;IND
-instr fetch_nop, op_OUTD, store_nop ;AB ;OUTD
-instr fetch_nop, op_nop, store_nop ;AC ;NOP
-instr fetch_nop, op_nop, store_nop ;AD ;NOP
-instr fetch_nop, op_nop, store_nop ;AE ;NOP
-instr fetch_nop, op_nop, store_nop ;AF ;NOP
-instr fetch_nop, op_LDIR, store_nop ;B0 ;LDIR
-instr fetch_nop, op_CPIR, store_nop ;B1 ;CPIR
-instr fetch_nop, op_INIR, store_nop ;B2 ;INIR
-instr fetch_nop, op_OTIR, store_nop ;B3 ;OTIR
-instr fetch_nop, op_nop, store_nop ;B4 ;NOP
-instr fetch_nop, op_nop, store_nop ;B5 ;NOP
-instr fetch_nop, op_nop, store_nop ;B6 ;NOP
-instr fetch_nop, op_nop, store_nop ;B7 ;NOP
-instr fetch_nop, op_LDDR, store_nop ;B8 ;LDDR
-instr fetch_nop, op_CPDR, store_nop ;B9 ;CPDR
-instr fetch_nop, op_INDR, store_nop ;BA ;INDR
-instr fetch_nop, op_OTDR, store_nop ;BB ;OTDR
-instr fetch_nop, op_nop, store_nop ;BC ;NOP
-instr fetch_nop, op_nop, store_nop ;BD ;NOP
-instr fetch_nop, op_nop, store_nop ;BE ;NOP
-instr fetch_nop, op_nop, store_nop ;BF ;NOP
-instr fetch_nop, op_nop, store_nop ;C0 ;NOP
-instr fetch_nop, op_nop, store_nop ;C1 ;NOP
-instr fetch_nop, op_nop, store_nop ;C2 ;NOP
-instr fetch_nop, op_nop, store_nop ;C3 ;NOP
-instr fetch_nop, op_nop, store_nop ;C4 ;NOP
-instr fetch_nop, op_nop, store_nop ;C5 ;NOP
-instr fetch_nop, op_nop, store_nop ;C6 ;NOP
-instr fetch_nop, op_nop, store_nop ;C7 ;NOP
-instr fetch_nop, op_nop, store_nop ;C8 ;NOP
-instr fetch_nop, op_nop, store_nop ;C9 ;NOP
-instr fetch_nop, op_nop, store_nop ;CA ;NOP
-instr fetch_nop, op_nop, store_nop ;CB ;NOP
-instr fetch_nop, op_nop, store_nop ;CC ;NOP
-instr fetch_nop, op_nop, store_nop ;CD ;NOP
-instr fetch_nop, op_nop, store_nop ;CE ;NOP
-instr fetch_nop, op_nop, store_nop ;CF ;NOP
-instr fetch_nop, op_nop, store_nop ;D0 ;NOP
-instr fetch_nop, op_nop, store_nop ;D1 ;NOP
-instr fetch_nop, op_nop, store_nop ;D2 ;NOP
-instr fetch_nop, op_nop, store_nop ;D3 ;NOP
-instr fetch_nop, op_nop, store_nop ;D4 ;NOP
-instr fetch_nop, op_nop, store_nop ;D5 ;NOP
-instr fetch_nop, op_nop, store_nop ;D6 ;NOP
-instr fetch_nop, op_nop, store_nop ;D7 ;NOP
-instr fetch_nop, op_nop, store_nop ;D8 ;NOP
-instr fetch_nop, op_nop, store_nop ;D9 ;NOP
-instr fetch_nop, op_nop, store_nop ;DA ;NOP
-instr fetch_nop, op_nop, store_nop ;DB ;NOP
-instr fetch_nop, op_nop, store_nop ;DC ;NOP
-instr fetch_nop, op_nop, store_nop ;DD ;NOP
-instr fetch_nop, op_nop, store_nop ;DE ;NOP
-instr fetch_nop, op_nop, store_nop ;DF ;NOP
-instr fetch_nop, op_nop, store_nop ;E0 ;NOP
-instr fetch_nop, op_nop, store_nop ;E1 ;NOP
-instr fetch_nop, op_nop, store_nop ;E2 ;NOP
-instr fetch_nop, op_nop, store_nop ;E3 ;NOP
-instr fetch_nop, op_nop, store_nop ;E4 ;NOP
-instr fetch_nop, op_nop, store_nop ;E5 ;NOP
-instr fetch_nop, op_nop, store_nop ;E6 ;NOP
-instr fetch_nop, op_nop, store_nop ;E7 ;NOP
-instr fetch_nop, op_nop, store_nop ;E8 ;NOP
-instr fetch_nop, op_nop, store_nop ;E9 ;NOP
-instr fetch_nop, op_nop, store_nop ;EA ;NOP
-instr fetch_nop, op_nop, store_nop ;EB ;NOP
-instr fetch_nop, op_nop, store_nop ;EC ;NOP
-instr fetch_nop, op_nop, store_nop ;ED ;NOP
-instr fetch_nop, op_nop, store_nop ;EE ;NOP
-instr fetch_nop, op_nop, store_nop ;EF ;NOP
-instr fetch_nop, op_nop, store_nop ;F0 ;NOP
-instr fetch_nop, op_nop, store_nop ;F1 ;NOP
-instr fetch_nop, op_nop, store_nop ;F2 ;NOP
-instr fetch_nop, op_nop, store_nop ;F3 ;NOP
-instr fetch_nop, op_nop, store_nop ;F4 ;NOP
-instr fetch_nop, op_nop, store_nop ;F5 ;NOP
-instr fetch_nop, op_nop, store_nop ;F6 ;NOP
-instr fetch_nop, op_nop, store_nop ;F7 ;NOP
-instr fetch_nop, op_nop, store_nop ;F8 ;NOP
-instr fetch_nop, op_nop, store_nop ;F9 ;NOP
-instr fetch_nop, op_nop, store_nop ;FA ;NOP
-instr fetch_nop, op_nop, store_nop ;FB ;NOP
-instr fetch_nop, op_nop, store_nop ;FC ;NOP
-instr fetch_nop, op_nop, store_nop ;FD ;NOP
-instr fetch_nop, op_nop, store_nop ;FE ;NOP
-instr fetch_nop, op_nop, store_nop ;FF ;NOP
-
-
- opctable DDFDjmp
+ opctable DDFDjmp, PC ;+256
instr fetch_nop, op_noni, store_nop ;00 ;
instr fetch_nop, op_noni, store_nop ;01 ;
instr fetch_DIR16, op_STxx, store_nop ;22 ;LD (nn),xx
instr fetch_xx, op_INC16, store_xx ;23 ;INC xx
instr fetch_xH, op_INC, store_xH ;24 ;INC xh
-instr fetch_xH, op_DEC, store_xH ;25 ;DEC xh
+instr fetch_xH, op_DEC, store_xH ;25 ;DEC xh
instr fetch_DIR8, op_nop, store_xH ;26 ;LD xh,n
instr fetch_nop, op_noni, store_nop ;27 ;
instr fetch_nop, op_noni, store_nop ;28 ;
instr fetch_xx, op_ADDxx, store_nop ;29 ;ADD xx,xx
instr fetch_DIR16, op_RMEM16, store_xx ;2A ;LD xx,(nn)
-instr fetch_xx, op_DEC16, store_xx ;2B ;DEC xx
+instr fetch_xx, op_DEC16, store_xx ;2B ;DEC xx
instr fetch_xL, op_INC, store_xL ;2C ;INC xl
-instr fetch_xL, op_DEC, store_xL ;2D ;DEC xl
+instr fetch_xL, op_DEC, store_xL ;2D ;DEC xl
instr fetch_DIR8, op_nop, store_xL ;2E ;LD xl,n
instr fetch_nop, op_noni, store_nop ;2F ;
instr fetch_nop, op_noni, store_nop ;30 ;
instr fetch_nop, op_noni, store_nop ;32 ;
instr fetch_nop, op_noni, store_nop ;33 ;
instr fetch_MXX, op_INC, store_MXX_0 ;34 ;INC (xx+d)
-instr fetch_MXX, op_DEC, store_MXX_0 ;35 ;DEC (xx+d)
+instr fetch_MXX, op_DEC, store_MXX_0 ;35 ;DEC (xx+d)
instr fetch_DIR8_2, op_nop, store_MXX_2 ;36 ;LD (xx+d),n
instr fetch_nop, op_noni, store_nop ;37 ;
instr fetch_nop, op_noni, store_nop ;38 ;
instr fetch_nop, op_noni, store_nop ;B9 ;
instr fetch_nop, op_noni, store_nop ;BA ;
instr fetch_nop, op_noni, store_nop ;BB ;
-instr fetch_xH, op_CPFA, store_nop ;BC ;CP A,xh
-instr fetch_xL, op_CPFA, store_nop ;BD ;CP A,xl
-instr fetch_MXX, op_CPFA, store_nop ;BE ;CP A,(xx)
+instr fetch_xH, op_CPFA, store_nop ;BC ;CP A,xh
+instr fetch_xL, op_CPFA, store_nop ;BD ;CP A,xl
+instr fetch_MXX, op_CPFA, store_nop ;BE ;CP A,(xx)
instr fetch_nop, op_noni, store_nop ;BF ;
instr fetch_nop, op_noni, store_nop ;C0 ;
instr fetch_nop, op_noni, store_nop ;C1 ;
instr fetch_nop, op_noni, store_nop ;E0 ;
instr fetch_nop, op_POP16, store_xx ;E1 ;POP xx
instr fetch_nop, op_noni, store_nop ;E2 ;
-instr fetch_MSP, op_EXxx, store_MSP ;E3 ;EX (SP),xx
+instr fetch_MSP, op_EXxx, store_MSP ;E3 ;EX (SP),xx
instr fetch_nop, op_noni, store_nop ;E4 ;
instr fetch_xx, op_PUSH16, store_nop ;E5 ;PUSH xx
instr fetch_nop, op_noni, store_nop ;E6 ;
;|SRL m |**0P0*|Shift Right Logical |m=->{0,m,CY} |
+ checkspace PC, 9
+
do_op_rlc:
;Rotate Left Cyclical. All bits move 1 to the
;left, the msb becomes c and lsb.
or z_flags,temp
ret
+ checkspace PC, 9
+
do_op_rrc:
;Rotate Right Cyclical. All bits move 1 to the
;right, the lsb becomes c and msb.
ret
+ checkspace PC, 11
+
do_op_rl:
;Rotate Left. All bits move 1 to the left, the msb
;becomes c, c becomes lsb.
ret
+ checkspace PC, 10
+
do_op_rr:
;Rotate Right. All bits move 1 to the right, the lsb
;becomes c, c becomes msb.
bmov z_flags,ZFL_C, temp,AVR_C ;
ret
+ checkspace PC, 9
+
do_op_sla:
lsl opl
in temp,sreg
bmov z_flags,ZFL_C, temp,AVR_C ;
ret
+ checkspace PC, 11
+
do_op_sra:
lsr opl
in temp,sreg
bmov z_flags,ZFL_C, temp,AVR_C ;
ret
+ checkspace PC, 9
+
do_op_sll:
sec
rol opl
bmov z_flags,ZFL_C, temp,AVR_C ;
ret
+ checkspace PC, 8
+
do_op_srl:
lsr opl
in temp,sreg
;|SET b,m |------|Set bit |m=mv{2^b} |
+ checkspace PC, 2
do_op_BIT7:
ldi temp,0x80
rjmp opbit
+ checkspace PC, 2
do_op_BIT6:
ldi temp,0x40
rjmp opbit
+ checkspace PC, 2
do_op_BIT5:
ldi temp,0x20
rjmp opbit
+ checkspace PC, 2
do_op_BIT4:
ldi temp,0x10
rjmp opbit
+ checkspace PC, 2
do_op_BIT3:
ldi temp,0x08
rjmp opbit
+ checkspace PC, 2
do_op_BIT2:
ldi temp,0x04
rjmp opbit
+ checkspace PC, 2
do_op_BIT1:
ldi temp,0x02
rjmp opbit
+
+ checkspace PC, 7
do_op_BIT0:
ldi temp,0x01
opbit:
- and temp,opl
- in temp,sreg
+ andi z_flags,~((1<<ZFL_N)|(1<<ZFL_Z))
ori z_flags,(1<<ZFL_H)
- andi z_flags,~(1<<ZFL_N)
- bmov z_flags,ZFL_Z, temp,AVR_Z
+ and temp,opl
+ brne opbite
+ ori z_flags,(1<<ZFL_Z)
+opbite:
ret
; std y+oz_b,opl
;.endm
;.equ do_store_b = 0
+ checkspace PC, 2
do_store2_b:
- std y+oz_b,opl
+ mov z_b,opl
ret
+ checkspace PC, 2
do_store2_c:
- std y+oz_c,opl
+ mov z_c,opl
ret
+ checkspace PC, 2
do_store2_d:
- std y+oz_d,opl
+ mov z_d,opl
ret
+ checkspace PC, 2
do_store2_e:
- std y+oz_e,opl
+ mov z_e,opl
ret
+ checkspace PC, 2
do_store2_h:
- std y+oz_h,opl
+ mov z_h,opl
ret
+ checkspace PC, 2
do_store2_l:
- std y+oz_l,opl
+ mov z_l,opl
ret
+ checkspace PC, 2
do_store2_a:
mov z_a,opl
ret
+ checkspace PC, 4
do_fetch2_mhl:
- ldd xh,y+oz_h
- ldd xl,y+oz_l
+ movw x,z_l
mem_read_d opl
ret
- opctable CBjmp
+ opctable CBjmp, PC ;+256
instr fetch_B, op_RLC, store2_B ;00 ;RLC B
instr fetch_C, op_RLC, store2_C ;01 ;RLC C
instr fetch_A, op_SET7, store2_A ;FF ;SET 7,A
- opctable DDFDCBjmp
+ opctable DDFDCBjmp, PC ;+256
instr fetch_nop, op_RLC, store2_B ;00 ;RLC (Ix+d),B
instr fetch_nop, op_RLC, store2_C ;01 ;RLC (Ix+d),C
instr fetch_nop, op_SET7, store_nop ;FE ;SET 7,(Ix+d)
instr fetch_nop, op_SET7, store2_A ;FF ;SET 7,(Ix+d),A
+do_fetch_0:
+ ldi opl,0
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|IN r,[C] |***P0-|Input |r=[C] |
+;
+
+do_op_in: ; in opl,(opl)
+.if PORT_DEBUG
+ push opl
+ cp opl,_0 ; don't debug port 0 (con stat)
+ breq dbg_op_in_1
+ printnewline
+ printstring "Port read: ("
+ mov temp,opl
+ lcall printhex
+ printstring ") -> "
+dbg_op_in_1:
+.endif
+
+ mov temp2,opl
+ lcall portRead
+ mov opl,temp
+ bst z_flags,ZFL_C ;save Carry
+ ldpmx z_flags,sz53p_tab,temp ;S,Z,P
+ bld z_flags,ZFL_C
+
+.if PORT_DEBUG
+ pop temp
+ cp temp,_0
+ breq dbg_op_in_2
+ lcall printhex
+ printstring " "
+dbg_op_in_2:
+.endif
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|OUT [C],r |------|Output |[C]=r |
+;
+
+do_op_out: ; out (c),opl
+.if PORT_DEBUG
+ printnewline
+ printstring "Port write: "
+ mov temp,opl
+ lcall printhex
+ printstring " -> ("
+ mov temp,z_c
+ lcall printhex
+ printstring ") "
+.endif
+ mov temp,opl
+ mov temp2,z_c
+ lcall portWrite
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|LD dst,src|------|Load |dst=src |
+;
+
+do_op_stbc: ;store bc to mem loc in opl:h
+ movw xl,opl
+ mem_write_s z_c
+ adiw xl,1
+ mem_write_s z_b
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|LD dst,src|------|Load |dst=src |
+;
+;
+do_op_stde: ;store de to mem loc in opl:h
+ movw xl,opl
+ mem_write_s z_e
+ adiw xl,1
+ mem_write_s z_d
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|LD dst,src|------|Load |dst=src |
+;
+;
+do_op_stsp: ;store sp to mem loc in opl:h
+ movw xl,opl
+ mem_write_s z_spl
+ adiw xl,1
+ mem_write_s z_sph
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|ADC HL,ss |***V0*|Add with Carry |HL=HL+ss+CY |
+;
+
+do_op_ADCHL:
+ lsr z_flags ; ZFL_C --> Carry
+ ldi z_flags,0 ; clear N
+ adc z_l,opl
+ in temp,sreg ; save lower Z
+ adc z_h,oph
+ in temp2,sreg
+
+ and temp,temp2 ; 16bit Z
+ bmov z_flags,ZFL_C, temp2,AVR_C
+ bmov z_flags,ZFL_P, temp2,AVR_V
+ bmov z_flags,ZFL_H, temp2,AVR_H
+ bmov z_flags,ZFL_Z, temp,AVR_Z
+ bmov z_flags,ZFL_S, temp2,AVR_N
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|SBC HL,ss |***V1*|Subtract with carry |HL=HL-ss-CY |
+;
+
+ checkspace PC, 24
+
+do_op_sbchl:
+ lsr z_flags ; get Z80 carry
+ sez ; set z
+ sbc z_l,opl
+ sbc z_h,oph
+ in temp,sreg
+ ldi z_flags,(1<<ZFL_N) ; set N
+ bmov z_flags,ZFL_C, temp,AVR_C
+ bmov z_flags,ZFL_P, temp,AVR_V
+ bmov z_flags,ZFL_H, temp,AVR_H
+ bmov z_flags,ZFL_Z, temp,AVR_Z
+ bmov z_flags,ZFL_S, temp,AVR_N
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|NEG |***V1*|Negate A |A=0-A |
+
+;
+do_op_NEG:
+ ldi temp,0
+ sub temp,z_a
+ mov z_a,temp
+ in temp,sreg
+ ldpmx z_flags,sz53p_tab,z_a ;S,Z,P
+ bmov z_flags,ZFL_C, temp,AVR_C
+ bmov z_flags,ZFL_H, temp,AVR_H
+ do_z80_flags_V
+ do_z80_flags_set_N
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|RETI |------|Return from Interrupt|PC=[SP]+ |
+;|RETN |------|Return from NMI | Copy IFF2 to IFF1 |
+
+
+do_op_RETI:
+do_op_RETN:
+ ldd temp,y+oz_istat
+ bmov temp,IFF1, temp,IFF2
+ std y+oz_istat,temp
+ ljmp do_store_ret
+
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|IM n |------|Interrupt Mode | (n=0,1,2)|
+
+do_op_IM0:
+ ldd temp,y+oz_istat
+ andi temp, ~IM_MASK
+ std y+oz_istat,temp
+ ret
+
+do_op_IM1:
+ ldd temp,y+oz_istat
+ andi temp,~IM_MASK
+ ori temp,IM1
+ std y+oz_istat,temp
+ ret
+
+do_op_IM2:
+ ldd temp,y+oz_istat
+ andi temp, ~IM_MASK
+ ori temp,IM2
+ std y+oz_istat,temp
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|LD A,i |**0*0-|Load |(i=I,R) IFF2 --> P |
+;|LD i,A |------|Load |(i=I,R) |
+
+do_op_ldai:
+ ldd z_a,y+oz_i
+ rjmp op_ldar1
+
+do_op_ldar:
+ ldd z_a,y+oz_r
+op_ldar1:
+ bst z_flags,ZFL_C ;save C
+ ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N
+ bld z_flags,ZFL_C ;
+ ldd temp,y+oz_istat
+ bmov z_flags,ZFL_P, temp,IFF2
+ ret
+
+do_op_ldia:
+ std y+oz_i,z_a
+ ret
+
+do_op_ldra:
+ std y+oz_r,z_a
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|RLD |**0P0-|Rotate Left 4 bits |{A,[HL]}={A,[HL]}<- ##|
+;|RRD |**0P0-|Rotate Right 4 bits |{A,[HL]}=->{A,[HL]} ##|
+
+do_op_rld:
+ swap opl
+ mov oph,opl
+ andi opl,0xf0
+ andi oph,0x0f
+ mov temp,z_a
+ andi temp,0x0f
+ or opl,temp
+ mov temp,z_a
+ andi temp,0xf0
+ or temp,oph
+ mov z_a,temp
+ bst z_flags,ZFL_C ;save C
+ ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N
+ bld z_flags,ZFL_C ;
+ ret
+
+do_op_rrd:
+ mov oph,opl
+ andi opl,0xf0
+ andi oph,0x0f
+ mov temp,z_a
+ andi temp,0x0f
+ or opl,temp
+ swap opl
+ mov temp,z_a
+ andi temp,0xf0
+ or temp,oph
+ mov z_a,temp
+ bst z_flags,ZFL_C ;save C
+ ldpmx z_flags,sz53p_tab,z_a ;S,Z,H,P,N
+ bld z_flags,ZFL_C ;
+ ret
+
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|LDD |--0*0-|Load and Decrement |[DE]=[HL],HL=HL-1,# |
+;|LDDR |--000-|Load, Dec., Repeat |LDD till BC=0 |
+;|LDI |--0*0-|Load and Increment |[DE]=[HL],HL=HL+1,# |
+;|LDIR |--000-|Load, Inc., Repeat |LDI till BC=0 |
+;
+
+ checkspace PC, 13
+
+op_LDxx_common:
+ movw x,z_l ;HL
+; mem_read_ds temp, z
+ lcall dram_read ; temp = (HL)
+ movw x,z_e ;DE
+; mem_write_ds x, temp
+ lcall dram_write ; (DE) = temp
+
+ cbr z_flags,(1<<ZFL_H) | (1<<ZFL_P) | (1<<ZFL_N)
+
+ movw x,z_c
+ sbiw x,1 ;BC--
+ movw z_c,x
+ breq PC+2
+ sbr z_flags,(1<<ZFL_P)
+ ret
+
+ checkspace PC, 6
+
+do_op_LDI:
+ rcall op_LDxx_common
+ sub z_e,_255 ;-low(-1) DE++
+ sbc z_d,_255 ;-high(-1)
+ sub z_l,_255 ;-low(-1) HL++
+ sbc z_h,_255 ;-high(-1)
+ ret
+
+ checkspace PC, 6
+
+do_op_LDD:
+ rcall op_LDxx_common
+ add z_e,_255 ;+low(-1) DE--
+ adc z_d,_255 ;+high(-1)
+ add z_l,_255 ;+low(-1) HL--
+ adc z_h,_255 ;+high(-1)
+ ret
+
+ checkspace PC, 5
+
+do_op_LDIR:
+ rcall do_op_LDI
+#if 1
+ sbrc z_flags,ZFL_P
+ rjmp do_op_LDIR
+ ret
+#else
+ sbrs z_flags,ZFL_P
+ ret
+ sbiw z_pcl,2
+ ret
+#endif
+
+ checkspace PC, 5
+
+do_op_LDDR:
+ rcall do_op_LDD
+ sbrs z_flags,ZFL_P
+ ret
+ sbiw z_pcl,2
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|CPD |****1-|Compare and Decrement|A-[HL],HL=HL-1,BC=BC-1|
+;|CPDR |****1-|Compare, Dec., Repeat|CPD till A=[HL]or BC=0|
+;|CPI |****1-|Compare and Increment|A-[HL],HL=HL+1,BC=BC-1|
+;|CPIR |****1-|Compare, Inc., Repeat|CPI till A=[HL]or BC=0|
+
+
+ checkspace PC, 21
+
+op_CPxx_common:
+ movw x,z_l ; HL
+
+ movw z,z_c ;BC
+
+ cbr z_flags,(1<<ZFL_S)|(1<<ZFL_Z)|(1<<ZFL_H)|(1<<ZFL_P)
+ sbr z_flags,(1<<ZFL_N)
+ lcall dram_read ; temp = (HL)
+
+ cp z_a,temp ; A - (HL)
+
+ brpl PC+2
+ sbr z_flags,(1<<ZFL_S)
+ brne PC+2
+ sbr z_flags,(1<<ZFL_Z)
+ brhc PC+2
+ sbr z_flags,(1<<ZFL_H)
+
+ sbiw z,1 ; BC--
+ breq PC+2
+ sbr z_flags,(1<<ZFL_P)
+ movw z_c,z ;BC
+ ret
+
+ checkspace PC, 5
+
+do_op_CPI:
+ rcall op_CPxx_common
+ adiw x,1 ; HL++
+ movw z_l,x ; HL
+ ret
+
+
+ checkspace PC, 5
+
+do_op_CPD:
+ rcall op_CPxx_common
+ sbiw x,1 ; HL--
+ movw z_l,x ; HL
+ ret
+
+ checkspace PC, 7
+
+do_op_CPIR:
+ rcall do_op_CPI
+ sbrc z_flags,ZFL_Z
+ ret
+ sbrs z_flags,ZFL_P
+ ret
+ sbiw z_pcl,2
+ ret
+
+ checkspace PC, 7
+
+do_op_CPDR:
+ rcall do_op_CPD
+ sbrc z_flags,ZFL_Z
+ ret
+ sbrs z_flags,ZFL_P
+ ret
+ sbiw z_pcl,2
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|INI |?*??1-|Input and Increment |[HL]=[C],HL=HL+1,B=B-1|
+;|IND |?*??1-|Input and Decrement |[HL]=[C],HL=HL-1,B=B-1|
+;|INIR |?1??1-|Input, Inc., Repeat |INI till B=0 |
+;|INDR |?1??1-|Input, Dec., Repeat |IND till B=0 |
+
+ checkspace PC, 12
+
+op_INxx_common:
+ cbr z_flags,(1<<ZFL_Z)
+ sbr z_flags,(1<<ZFL_N)
+ mov temp2,z_c ;C
+ lcall portRead
+ movw x,z_l ;HL
+ lcall dram_write
+ dec z_b ;B
+ brne PC+2
+ sbr z_flags,(1<<ZFL_Z)
+ ret
+
+ checkspace PC, 4
+
+do_op_INI:
+ rcall op_INxx_common
+ adiw x,1
+ movw z_l,x ;HL
+ ret
+
+ checkspace PC, 4
+
+do_op_IND:
+ rcall op_INxx_common
+ sbiw x,1
+ movw z_l,x ;HL
+ ret
+
+ checkspace PC, 5
+
+do_op_INIR:
+ rcall do_op_INI
+ sbrc z_flags,ZFL_Z
+ ret
+ sbiw z_pcl,2
+ ret
+
+ checkspace PC, 5
+
+do_op_INDR:
+ rcall do_op_IND
+ sbrc z_flags,ZFL_Z
+ ret
+ sbiw z_pcl,2
+ ret
+
+;----------------------------------------------------------------
+;|Mnemonic |SZHPNC|Description |Notes |
+;----------------------------------------------------------------
+;|OUTI |?*??1-|Output and Increment |[C]=[HL],HL=HL+1,B=B-1|
+;|OUTD |?*??1-|Output and Decrement |[C]=[HL],HL=HL-1,B=B-1|
+;|OTIR |?1??1-|Output, Inc., Repeat |OUTI till B=0 |
+;|OTDR |?1??1-|Output, Dec., Repeat |OUTD till B=0 |
+
+ checkspace PC, 12
+
+op_OUTxx_common:
+ movw x,z_l ;HL
+ lcall dram_read ;temp = (z)
+ mov temp2,z_c ;C
+ lcall portWrite
+ cbr z_flags,(1<<ZFL_Z)
+ sbr z_flags,(1<<ZFL_N)
+ dec z_b ;B
+ brne PC+2
+ sbr z_flags,(1<<ZFL_Z)
+ ret
+
+ checkspace PC, 4
+
+do_op_OUTI:
+ rcall op_OUTxx_common
+ sub z_l,_255 ;-low(-1)
+ sbc z_h,_255 ;-high(-1)
+ ret
+
+ checkspace PC, 4
+
+do_op_OUTD:
+ rcall op_OUTxx_common
+ add z_l,_255 ;+low(-1)
+ adc z_h,_255 ;+high(-1)
+ ret
+
+ checkspace PC, 5
+
+do_op_OTIR:
+ rcall do_op_OUTI
+ sbrc z_flags,ZFL_Z
+ ret
+ sbiw z_pcl,2
+ ret
+
+ checkspace PC, 5
+
+do_op_OTDR:
+ rcall do_op_OUTD
+ sbrc z_flags,ZFL_Z
+ ret
+ sbiw z_pcl,2
+ ret
+
+#if 1
+ opctable EDjmp, PC ;+ 2*256
+
+instr fetch_nop, op_nop, store_nop ;00 ;NOP
+instr fetch_nop, op_nop, store_nop ;01 ;NOP
+instr fetch_nop, op_nop, store_nop ;02 ;NOP
+instr fetch_nop, op_nop, store_nop ;03 ;NOP
+instr fetch_nop, op_nop, store_nop ;04 ;NOP
+instr fetch_nop, op_nop, store_nop ;05 ;NOP
+instr fetch_nop, op_nop, store_nop ;06 ;NOP
+instr fetch_nop, op_nop, store_nop ;07 ;NOP
+instr fetch_nop, op_nop, store_nop ;08 ;NOP
+instr fetch_nop, op_nop, store_nop ;09 ;NOP
+instr fetch_nop, op_nop, store_nop ;0A ;NOP
+instr fetch_nop, op_nop, store_nop ;0B ;NOP
+instr fetch_nop, op_nop, store_nop ;0C ;NOP
+instr fetch_nop, op_nop, store_nop ;0D ;NOP
+instr fetch_nop, op_nop, store_nop ;0E ;NOP
+instr fetch_nop, op_nop, store_nop ;0F ;NOP
+instr fetch_nop, op_nop, store_nop ;10 ;NOP
+instr fetch_nop, op_nop, store_nop ;11 ;NOP
+instr fetch_nop, op_nop, store_nop ;12 ;NOP
+instr fetch_nop, op_nop, store_nop ;13 ;NOP
+instr fetch_nop, op_nop, store_nop ;14 ;NOP
+instr fetch_nop, op_nop, store_nop ;15 ;NOP
+instr fetch_nop, op_nop, store_nop ;16 ;NOP
+instr fetch_nop, op_nop, store_nop ;17 ;NOP
+instr fetch_nop, op_nop, store_nop ;18 ;NOP
+instr fetch_nop, op_nop, store_nop ;19 ;NOP
+instr fetch_nop, op_nop, store_nop ;1A ;NOP
+instr fetch_nop, op_nop, store_nop ;1B ;NOP
+instr fetch_nop, op_nop, store_nop ;1C ;NOP
+instr fetch_nop, op_nop, store_nop ;1D ;NOP
+instr fetch_nop, op_nop, store_nop ;1E ;NOP
+instr fetch_nop, op_nop, store_nop ;1F ;NOP
+instr fetch_nop, op_nop, store_nop ;20 ;NOP
+instr fetch_nop, op_nop, store_nop ;21 ;NOP
+instr fetch_nop, op_nop, store_nop ;22 ;NOP
+instr fetch_nop, op_nop, store_nop ;23 ;NOP
+instr fetch_nop, op_nop, store_nop ;24 ;NOP
+instr fetch_nop, op_nop, store_nop ;25 ;NOP
+instr fetch_nop, op_nop, store_nop ;26 ;NOP
+instr fetch_nop, op_nop, store_nop ;27 ;NOP
+instr fetch_nop, op_nop, store_nop ;28 ;NOP
+instr fetch_nop, op_nop, store_nop ;29 ;NOP
+instr fetch_nop, op_nop, store_nop ;2A ;NOP
+instr fetch_nop, op_nop, store_nop ;2B ;NOP
+instr fetch_nop, op_nop, store_nop ;2C ;NOP
+instr fetch_nop, op_nop, store_nop ;2D ;NOP
+instr fetch_nop, op_nop, store_nop ;2E ;NOP
+instr fetch_nop, op_nop, store_nop ;2F ;NOP
+instr fetch_nop, op_nop, store_nop ;30 ;NOP
+instr fetch_nop, op_nop, store_nop ;31 ;NOP
+instr fetch_nop, op_nop, store_nop ;32 ;NOP
+instr fetch_nop, op_nop, store_nop ;33 ;NOP
+instr fetch_nop, op_nop, store_nop ;34 ;NOP
+instr fetch_nop, op_nop, store_nop ;35 ;NOP
+instr fetch_nop, op_nop, store_nop ;36 ;NOP
+instr fetch_nop, op_nop, store_nop ;37 ;NOP
+instr fetch_nop, op_nop, store_nop ;38 ;NOP
+instr fetch_nop, op_nop, store_nop ;39 ;NOP
+instr fetch_nop, op_nop, store_nop ;3A ;NOP
+instr fetch_nop, op_nop, store_nop ;3B ;NOP
+instr fetch_nop, op_nop, store_nop ;3C ;NOP
+instr fetch_nop, op_nop, store_nop ;3D ;NOP
+instr fetch_nop, op_nop, store_nop ;3E ;NOP
+instr fetch_nop, op_nop, store_nop ;3F ;NOP
+instr fetch_C, op_IN, store2_B ;40 ;IN B,(C)
+instr fetch_B, op_OUT, store_nop ;41 ;OUT (C),B
+instr fetch_BC, op_SBCHL, store_nop ;42 ;SBC HL,BC
+instr fetch_DIR16, op_STBC, store_nop ;43 ;LD (nn),BC
+instr fetch_nop, op_NEG, store_nop ;44 ;NEG
+instr fetch_nop, op_RETN, store_nop ;45 ;RETN
+instr fetch_nop, op_IM0, store_nop ;46 ;IM 0
+instr fetch_nop, op_ldia, store_nop ;47 ;LD I,A
+instr fetch_C, op_IN, store2_C ;48 ;IN C,(C)
+instr fetch_C, op_OUT, store_nop ;49 ;OUT (C),C
+instr fetch_BC, op_ADCHL, store_nop ;4A ;ADC HL,BC
+instr fetch_DIR16, op_RMEM16, store_BC ;4B nn nn ;LD BC,(nn)
+instr fetch_nop, op_NEG, store_nop ;4C ;NEG
+instr fetch_nop, op_RETI, store_nop ;4D ;RETI
+instr fetch_nop, op_IM0, store_nop ;4E ;IM 0
+instr fetch_nop, op_ldra, store_nop ;4F ;LD R,A
+instr fetch_C, op_IN, store2_D ;50 ;IN D,(C)
+instr fetch_D, op_OUT, store_nop ;51 ;OUT (C),D
+instr fetch_DE, op_SBCHL, store_nop ;52 ;SBC HL,DE
+instr fetch_DIR16, op_STDE, store_nop ;53 nn nn ;LD (nn),DE
+instr fetch_nop, op_NEG, store_nop ;54 ;NEG
+instr fetch_nop, op_RETN, store_nop ;55 ;RETN
+instr fetch_nop, op_IM1, store_nop ;56 ;IM 1
+instr fetch_nop, op_ldai, store_nop ;57 ;LD A,I
+instr fetch_C, op_IN, store2_E ;58 ;IN E,(C)
+instr fetch_E, op_OUT, store_nop ;59 ;OUT (C),E
+instr fetch_DE, op_ADCHL, store_nop ;5A ;ADC HL,DE
+instr fetch_DIR16, op_RMEM16, store_DE ;5B nn nn ;LD DE,(nn)
+instr fetch_nop, op_NEG, store_nop ;5C ;NEG
+instr fetch_nop, op_RETN, store_nop ;5D ;RETN
+instr fetch_nop, op_IM2, store_nop ;5E ;IM 2
+instr fetch_nop, op_ldar, store_nop ;5F ;LD A,R
+instr fetch_C, op_IN, store2_H ;60 ;IN H,(C)
+instr fetch_H, op_OUT, store_nop ;61 ;OUT (C),H
+instr fetch_HL, op_SBCHL, store_nop ;62 ;SBC HL,HL
+instr fetch_DIR16, op_STHL, store_nop ;63 nn nn ;LD (nn),HL
+instr fetch_nop, op_NEG, store_nop ;64 ;NEG
+instr fetch_nop, op_RETN, store_nop ;65 ;RETN
+instr fetch_nop, op_IM0, store_nop ;66 ;IM 0
+instr fetch2_mhl, op_RRD, store_mhl ;67 ;RRD
+instr fetch_C, op_IN, store2_L ;68 ;IN L,(C)
+instr fetch_L, op_OUT, store_nop ;69 ;OUT (C),L
+instr fetch_HL, op_ADCHL, store_nop ;6A ;ADC HL,HL
+instr fetch_DIR16, op_RMEM16, store_HL ;6B nn nn ;LD HL,(nn)
+instr fetch_nop, op_NEG, store_nop ;6C ;NEG
+instr fetch_nop, op_RETN, store_nop ;6D ;RETN
+instr fetch_nop, op_IM0, store_nop ;6E ;IM 0
+instr fetch2_mhl, op_RLD, store_mhl ;6F ;RLD
+instr fetch_C, op_IN, store_nop ;70 ;IN (C)
+instr fetch_0, op_OUT, store_nop ;71 ;OUT (C),0
+instr fetch_SP, op_SBCHL, store_nop ;72 ;SBC HL,SP
+instr fetch_DIR16, op_STSP, store_nop ;73 nn nn ;LD (nn),SP
+instr fetch_nop, op_NEG, store_nop ;74 ;NEG
+instr fetch_nop, op_RETN, store_nop ;75 ;RETN
+instr fetch_nop, op_IM1, store_nop ;76 ;IM 1
+instr fetch_nop, op_nop, store_nop ;77 ;NOP
+instr fetch_C, op_IN, store2_A ;78 ;IN A,(C)
+instr fetch_A, op_OUT, store_nop ;79 ;OUT (C),A
+instr fetch_SP, op_ADCHL, store_nop ;7A ;ADC HL,SP
+instr fetch_DIR16, op_RMEM16, store_SP ;7B nn nn ;LD SP,(nn)
+instr fetch_nop, op_NEG, store_nop ;7C ;NEG
+instr fetch_nop, op_RETN, store_nop ;7D ;RETN
+instr fetch_nop, op_IM2, store_nop ;7E ;IM 2
+instr fetch_nop, op_nop, store_nop ;7F ;NOP
+instr fetch_nop, op_nop, store_nop ;80 ;NOP
+instr fetch_nop, op_nop, store_nop ;81 ;NOP
+instr fetch_nop, op_nop, store_nop ;82 ;NOP
+instr fetch_nop, op_nop, store_nop ;83 ;NOP
+instr fetch_nop, op_nop, store_nop ;84 ;NOP
+instr fetch_nop, op_nop, store_nop ;85 ;NOP
+instr fetch_nop, op_nop, store_nop ;86 ;NOP
+instr fetch_nop, op_nop, store_nop ;87 ;NOP
+instr fetch_nop, op_nop, store_nop ;88 ;NOP
+instr fetch_nop, op_nop, store_nop ;89 ;NOP
+instr fetch_nop, op_nop, store_nop ;8A ;NOP
+instr fetch_nop, op_nop, store_nop ;8B ;NOP
+instr fetch_nop, op_nop, store_nop ;8C ;NOP
+instr fetch_nop, op_nop, store_nop ;8D ;NOP
+instr fetch_nop, op_nop, store_nop ;8E ;NOP
+instr fetch_nop, op_nop, store_nop ;8F ;NOP
+instr fetch_nop, op_nop, store_nop ;90 ;NOP
+instr fetch_nop, op_nop, store_nop ;91 ;NOP
+instr fetch_nop, op_nop, store_nop ;92 ;NOP
+instr fetch_nop, op_nop, store_nop ;93 ;NOP
+instr fetch_nop, op_nop, store_nop ;94 ;NOP
+instr fetch_nop, op_nop, store_nop ;95 ;NOP
+instr fetch_nop, op_nop, store_nop ;96 ;NOP
+instr fetch_nop, op_nop, store_nop ;97 ;NOP
+instr fetch_nop, op_nop, store_nop ;98 ;NOP
+instr fetch_nop, op_nop, store_nop ;99 ;NOP
+instr fetch_nop, op_nop, store_nop ;9A ;NOP
+instr fetch_nop, op_nop, store_nop ;9B ;NOP
+instr fetch_nop, op_nop, store_nop ;9C ;NOP
+instr fetch_nop, op_nop, store_nop ;9D ;NOP
+instr fetch_nop, op_nop, store_nop ;9E ;NOP
+instr fetch_nop, op_nop, store_nop ;9F ;NOP
+instr fetch_nop, op_LDI, store_nop ;A0 ;LDI
+instr fetch_nop, op_CPI, store_nop ;A1 ;CPI
+instr fetch_nop, op_INI, store_nop ;A2 ;INI
+instr fetch_nop, op_OUTI, store_nop ;A3 ;OUTI
+instr fetch_nop, op_nop, store_nop ;A4 ;NOP
+instr fetch_nop, op_nop, store_nop ;A5 ;NOP
+instr fetch_nop, op_nop, store_nop ;A6 ;NOP
+instr fetch_nop, op_nop, store_nop ;A7 ;NOP
+instr fetch_nop, op_LDD, store_nop ;A8 ;LDD
+instr fetch_nop, op_CPD, store_nop ;A9 ;CPD
+instr fetch_nop, op_IND, store_nop ;AA ;IND
+instr fetch_nop, op_OUTD, store_nop ;AB ;OUTD
+instr fetch_nop, op_nop, store_nop ;AC ;NOP
+instr fetch_nop, op_nop, store_nop ;AD ;NOP
+instr fetch_nop, op_nop, store_nop ;AE ;NOP
+instr fetch_nop, op_nop, store_nop ;AF ;NOP
+instr fetch_nop, op_LDIR, store_nop ;B0 ;LDIR
+instr fetch_nop, op_CPIR, store_nop ;B1 ;CPIR
+instr fetch_nop, op_INIR, store_nop ;B2 ;INIR
+instr fetch_nop, op_OTIR, store_nop ;B3 ;OTIR
+instr fetch_nop, op_nop, store_nop ;B4 ;NOP
+instr fetch_nop, op_nop, store_nop ;B5 ;NOP
+instr fetch_nop, op_nop, store_nop ;B6 ;NOP
+instr fetch_nop, op_nop, store_nop ;B7 ;NOP
+instr fetch_nop, op_LDDR, store_nop ;B8 ;LDDR
+instr fetch_nop, op_CPDR, store_nop ;B9 ;CPDR
+instr fetch_nop, op_INDR, store_nop ;BA ;INDR
+instr fetch_nop, op_OTDR, store_nop ;BB ;OTDR
+instr fetch_nop, op_nop, store_nop ;BC ;NOP
+instr fetch_nop, op_nop, store_nop ;BD ;NOP
+instr fetch_nop, op_nop, store_nop ;BE ;NOP
+instr fetch_nop, op_nop, store_nop ;BF ;NOP
+instr fetch_nop, op_nop, store_nop ;C0 ;NOP
+instr fetch_nop, op_nop, store_nop ;C1 ;NOP
+instr fetch_nop, op_nop, store_nop ;C2 ;NOP
+instr fetch_nop, op_nop, store_nop ;C3 ;NOP
+instr fetch_nop, op_nop, store_nop ;C4 ;NOP
+instr fetch_nop, op_nop, store_nop ;C5 ;NOP
+instr fetch_nop, op_nop, store_nop ;C6 ;NOP
+instr fetch_nop, op_nop, store_nop ;C7 ;NOP
+instr fetch_nop, op_nop, store_nop ;C8 ;NOP
+instr fetch_nop, op_nop, store_nop ;C9 ;NOP
+instr fetch_nop, op_nop, store_nop ;CA ;NOP
+instr fetch_nop, op_nop, store_nop ;CB ;NOP
+instr fetch_nop, op_nop, store_nop ;CC ;NOP
+instr fetch_nop, op_nop, store_nop ;CD ;NOP
+instr fetch_nop, op_nop, store_nop ;CE ;NOP
+instr fetch_nop, op_nop, store_nop ;CF ;NOP
+instr fetch_nop, op_nop, store_nop ;D0 ;NOP
+instr fetch_nop, op_nop, store_nop ;D1 ;NOP
+instr fetch_nop, op_nop, store_nop ;D2 ;NOP
+instr fetch_nop, op_nop, store_nop ;D3 ;NOP
+instr fetch_nop, op_nop, store_nop ;D4 ;NOP
+instr fetch_nop, op_nop, store_nop ;D5 ;NOP
+instr fetch_nop, op_nop, store_nop ;D6 ;NOP
+instr fetch_nop, op_nop, store_nop ;D7 ;NOP
+instr fetch_nop, op_nop, store_nop ;D8 ;NOP
+instr fetch_nop, op_nop, store_nop ;D9 ;NOP
+instr fetch_nop, op_nop, store_nop ;DA ;NOP
+instr fetch_nop, op_nop, store_nop ;DB ;NOP
+instr fetch_nop, op_nop, store_nop ;DC ;NOP
+instr fetch_nop, op_nop, store_nop ;DD ;NOP
+instr fetch_nop, op_nop, store_nop ;DE ;NOP
+instr fetch_nop, op_nop, store_nop ;DF ;NOP
+instr fetch_nop, op_nop, store_nop ;E0 ;NOP
+instr fetch_nop, op_nop, store_nop ;E1 ;NOP
+instr fetch_nop, op_nop, store_nop ;E2 ;NOP
+instr fetch_nop, op_nop, store_nop ;E3 ;NOP
+instr fetch_nop, op_nop, store_nop ;E4 ;NOP
+instr fetch_nop, op_nop, store_nop ;E5 ;NOP
+instr fetch_nop, op_nop, store_nop ;E6 ;NOP
+instr fetch_nop, op_nop, store_nop ;E7 ;NOP
+instr fetch_nop, op_nop, store_nop ;E8 ;NOP
+instr fetch_nop, op_nop, store_nop ;E9 ;NOP
+instr fetch_nop, op_nop, store_nop ;EA ;NOP
+instr fetch_nop, op_nop, store_nop ;EB ;NOP
+instr fetch_nop, op_nop, store_nop ;EC ;NOP
+instr fetch_nop, op_nop, store_nop ;ED ;NOP
+instr fetch_nop, op_nop, store_nop ;EE ;NOP
+instr fetch_nop, op_nop, store_nop ;EF ;NOP
+instr fetch_nop, op_nop, store_nop ;F0 ;NOP
+instr fetch_nop, op_nop, store_nop ;F1 ;NOP
+instr fetch_nop, op_nop, store_nop ;F2 ;NOP
+instr fetch_nop, op_nop, store_nop ;F3 ;NOP
+instr fetch_nop, op_nop, store_nop ;F4 ;NOP
+instr fetch_nop, op_nop, store_nop ;F5 ;NOP
+instr fetch_nop, op_nop, store_nop ;F6 ;NOP
+instr fetch_nop, op_nop, store_nop ;F7 ;NOP
+instr fetch_nop, op_nop, store_nop ;F8 ;NOP
+instr fetch_nop, op_nop, store_nop ;F9 ;NOP
+instr fetch_nop, op_nop, store_nop ;FA ;NOP
+instr fetch_nop, op_nop, store_nop ;FB ;NOP
+instr fetch_nop, op_nop, store_nop ;FC ;NOP
+instr fetch_nop, op_nop, store_nop ;FD ;NOP
+instr fetch_nop, op_nop, store_nop ;FE ;NOP
+instr fetch_nop, op_nop, store_nop ;FF ;NOP
+#endif
#endif
; The S, Z, 5 and 3 bits and the parity of the lookup value
-; .org (PC+255) & 0xff00
+ checkspace PC, 256
+
+ .org (PC+255) & 0xff00
; .org opcjmp + 256
- .org sz53p_table_pos
+; .org sz53p_table_pos
; .org FLASHEND & 0xff00
; .org 0x1fff & 0xff00
projects / avrcpm.git / blobdiff