First release of ZSNES sources
This commit is contained in:
teuf
812
zsnes/src/cpu/address.inc
Normal file
812
zsnes/src/cpu/address.inc
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@@ -0,0 +1,812 @@
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;Copyright (C) 1997-2001 ZSNES Team ( zsknight@zsnes.com / _demo_@zsnes.com )
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;
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;This program is free software; you can redistribute it and/or
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;modify it under the terms of the GNU General Public License
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;as published by the Free Software Foundation; either
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;version 2 of the License, or (at your option) any later
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;version.
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;
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;This program is distributed in the hope that it will be useful,
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;but WITHOUT ANY WARRANTY; without even the implied warranty of
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;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;GNU General Public License for more details.
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;
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;You should have received a copy of the GNU General Public License
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;along with this program; if not, write to the Free Software
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;Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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EXTSYM membank0w8ram
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;*******************************************************
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; Address Modes
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;*******************************************************
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; 1. Immediate Addressing -- # - DONE IN PROGRAM
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%macro addr_I_8br 0
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mov al,[esi]
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inc esi
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%endmacro
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%macro addr_I_16br 0
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mov eax,[esi]
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add esi,2
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%endmacro
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; 2. Absolute -- a (TESTED)
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%macro addr_a_8br 0
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mov cx,[esi]
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mov bl,[xdb]
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add esi,2
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call dword near [memtabler8+ebx*4]
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%endmacro
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%macro addr_a_16br 0
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mov cx,[esi]
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mov bl,[xdb]
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add esi,2
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call dword near [memtabler16+ebx*4]
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%endmacro
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%macro addr_a_8bw 0
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mov cx,[esi]
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mov bl,[xdb]
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add esi,2
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call dword near [memtablew8+ebx*4]
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%endmacro
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%macro addr_a_16bw 0
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mov cx,[esi]
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mov bl,[xdb]
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add esi,2
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call dword near [memtablew16+ebx*4]
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%endmacro
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; 3. Absolute Long -- al
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%macro addr_al_8br 0
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mov cx,[esi]
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mov bl,[esi+2]
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add esi,3
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call dword near [memtabler8+ebx*4]
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%endmacro
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%macro addr_al_16br 0
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mov cx,[esi]
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mov bl,[esi+2]
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add esi,3
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call dword near [memtabler16+ebx*4]
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%endmacro
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%macro addr_al_8bw 0
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mov cx,[esi]
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mov bl,[esi+2]
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add esi,3
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call dword near [memtablew8+ebx*4]
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%endmacro
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%macro addr_al_16bw 0
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mov cx,[esi]
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mov bl,[esi+2]
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add esi,3
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call dword near [memtablew16+ebx*4]
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%endmacro
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; 4. Direct -- d (TESTED)
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%macro addr_d_8br 0
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageR8]
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%endmacro
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%macro addr_d_16br 0
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageR16]
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%endmacro
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%macro addr_d_8bw 0
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageW8]
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%endmacro
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%macro addr_d_16bw 0
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageW16]
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%endmacro
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; 5. Accumulator -- A
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%macro addr_A_8br 0
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mov al,[xa]
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%endmacro
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%macro addr_A_16br 0
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mov eax,[xa]
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%endmacro
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%macro addr_A_8bw 0
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mov [xa],al
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%endmacro
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%macro addr_A_16bw 0
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mov [xa],ax
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%endmacro
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; 7. Direct Indirect Indexed -- (d),y
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%macro addr_BdBCy_8br 0
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageR16]
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mov cx,ax
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mov bl,[xdb]
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add cx,[xy]
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jnc .np
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inc bl
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.np
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call dword near [memtabler8+ebx*4]
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%endmacro
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%macro addr_BdBCy_16br 0
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageR16]
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mov cx,ax
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mov bl,[xdb]
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add cx,[xy]
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jnc .np
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inc bl
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.np
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call dword near [memtabler16+ebx*4]
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%endmacro
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%macro addr_BdBCy_8bw 0
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push ax
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageR16]
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mov cx,ax
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mov bl,[xdb]
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add cx,[xy]
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jnc .np
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inc bl
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.np
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pop ax
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call dword near [memtablew8+ebx*4]
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%endmacro
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%macro addr_BdBCy_16bw 0
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push ax
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mov bl,[esi]
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mov ecx,[xd]
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inc esi
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call dword near [DPageR16]
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mov cx,ax
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mov bl,[xdb]
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add cx,[xy]
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jnc .np
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inc bl
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.np
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pop ax
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call dword near [memtablew16+ebx*4]
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%endmacro
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; 8. Direct Indirect Indexed Long -- [d],y
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%macro addr_LdLCy_8br 0
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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push cx
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call membank0r16
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pop cx
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add cx,2
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push ax
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call membank0r8
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mov bl,al
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pop ax
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mov cx,ax
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add cx,[xy]
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jnc .np
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inc bl
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.np
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call dword near [memtabler8+ebx*4]
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%endmacro
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%macro addr_LdLCy_16br 0
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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push cx
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call membank0r16
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pop cx
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add cx,2
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push ax
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call membank0r8
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mov bl,al
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pop ax
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mov cx,ax
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add cx,[xy]
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jnc .np
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inc bl
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.np
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call dword near [memtabler16+ebx*4]
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%endmacro
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%macro addr_LdLCy_8bw 0
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push ax
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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push cx
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call membank0r16
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pop cx
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add cx,2
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push ax
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call membank0r8
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mov bl,al
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pop ax
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mov cx,ax
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add cx,[xy]
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pop ax
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jnc .np
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inc bl
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.np
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call dword near [memtablew8+ebx*4]
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%endmacro
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%macro addr_LdLCy_16bw 0
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push ax
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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push cx
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call membank0r16
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pop cx
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add cx,2
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xor bl,bl
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push ax
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call membank0r8
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mov bl,al
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pop ax
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mov cx,ax
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add cx,[xy]
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pop ax
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jnc .np
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inc bl
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.np
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call dword near [memtablew16+ebx*4]
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%endmacro
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; 9. Direct Indexed Indirect -- (d,x)
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%macro addr_BdCxB_8br 0
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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add cx,[xx]
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call membank0r16
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mov cx,ax
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mov bl,[xdb]
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call dword near [memtabler8+ebx*4]
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%endmacro
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%macro addr_BdCxB_16br 0
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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add cx,[xx]
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call membank0r16
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mov cx,ax
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mov bl,[xdb]
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call dword near [memtabler16+ebx*4]
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%endmacro
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%macro addr_BdCxB_8bw 0
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push ax
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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add cx,[xx]
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call membank0r16
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mov cx,ax
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mov bl,[xdb]
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pop ax
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call dword near [memtablew8+ebx*4]
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%endmacro
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%macro addr_BdCxB_16bw 0
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push ax
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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add cx,[xx]
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call membank0r16
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mov cx,ax
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mov bl,[xdb]
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pop ax
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call dword near [memtablew16+ebx*4]
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%endmacro
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; 10. Direct Indexed With X -- d,x
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%macro addr_dCx_8br 0
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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add cx,[xx]
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call membank0r8
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%endmacro
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%macro addr_dCx_16br 0
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mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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add cx,[xx]
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call membank0r16
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%endmacro
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%macro addr_dCx_8bw 0
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||||
mov ecx,[xd]
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mov bl,[esi]
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add cx,bx
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inc esi
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add cx,[xx]
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call membank0w8
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%endmacro
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||||
|
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%macro addr_dCx_16bw 0
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||||
mov ecx,[xd]
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||||
mov bl,[esi]
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||||
add cx,bx
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||||
inc esi
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||||
add cx,[xx]
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call membank0w16
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%endmacro
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; 11. Direct Indexed With Y -- d,y
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||||
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%macro addr_dCy_8br 0
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||||
mov ecx,[xd]
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||||
mov bl,[esi]
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||||
add cx,bx
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||||
inc esi
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||||
add cx,[xy]
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||||
call membank0r8
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||||
%endmacro
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||||
|
||||
%macro addr_dCy_16br 0
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||||
mov ecx,[xd]
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||||
mov bl,[esi]
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||||
add cx,bx
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||||
inc esi
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||||
add cx,[xy]
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||||
call membank0r16
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||||
%endmacro
|
||||
|
||||
%macro addr_dCy_8bw 0
|
||||
mov ecx,[xd]
|
||||
mov bl,[esi]
|
||||
add cx,bx
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||||
inc esi
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||||
add cx,[xy]
|
||||
call membank0w8
|
||||
%endmacro
|
||||
|
||||
%macro addr_dCy_16bw 0
|
||||
mov ecx,[xd]
|
||||
mov bl,[esi]
|
||||
add cx,bx
|
||||
inc esi
|
||||
add cx,[xy]
|
||||
call membank0w16
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||||
%endmacro
|
||||
|
||||
; 12. Absolute Indexed With X -- a,x
|
||||
|
||||
%macro addr_aCx_8br 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_aCx_16br 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_aCx_8bw 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_aCx_16bw 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
; 13. Absolute Indexed With Y -- a,y
|
||||
|
||||
%macro addr_aCy_8br 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_aCy_16br 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_aCy_8bw 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_aCy_16bw 0
|
||||
mov cx,[esi]
|
||||
mov bl,[xdb]
|
||||
add esi,2
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
; 14. Absolute Long Indexed With X -- al,x
|
||||
|
||||
%macro addr_alCx_8br 0
|
||||
mov cx,[esi]
|
||||
mov bl,[esi+2]
|
||||
add esi,3
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_alCx_16br 0
|
||||
mov cx,[esi]
|
||||
mov bl,[esi+2]
|
||||
add esi,3
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_alCx_8bw 0
|
||||
mov cx,[esi]
|
||||
mov bl,[esi+2]
|
||||
add esi,3
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_alCx_16bw 0
|
||||
mov cx,[esi]
|
||||
mov bl,[esi+2]
|
||||
add esi,3
|
||||
add cx,[xx]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
; 18. Direct Indirect -- (d)
|
||||
; ___________________
|
||||
; Instruction: | opcode | offset |
|
||||
; ~~~~~~~~~~~~~~~~~~~
|
||||
; | Direct Register |
|
||||
; + | offset |
|
||||
; ---------------------
|
||||
; | 00 | direct address |
|
||||
; then:
|
||||
; | 00 | (direct address) |
|
||||
; + | DB |
|
||||
; -------------------------------
|
||||
; Address: | effective address |
|
||||
|
||||
%macro addr_BdB_8br 0
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
call dword near [DPageR16]
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
call dword near [memtabler8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_BdB_16br 0
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
call dword near [DPageR16]
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
call dword near [memtabler16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_BdB_8bw 0
|
||||
push ax
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
call dword near [DPageR16]
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
pop ax
|
||||
call dword near [memtablew8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_BdB_16bw 0
|
||||
push ax
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
call dword near [DPageR16]
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
pop ax
|
||||
call dword near [memtablew16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
; 19. Direct Indirect Long -- [d]
|
||||
; ___________________
|
||||
; Instruction: | opcode | offset |
|
||||
; ~~~~~~~~~~~~~~~~~~~
|
||||
; | Direct Register |
|
||||
; + | offset |
|
||||
; ---------------------
|
||||
; | 00 | direct address |
|
||||
; then:
|
||||
; -------------------------------
|
||||
; Address: | (direct address) |
|
||||
|
||||
%macro addr_LdL_8br 0
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
add cx,bx
|
||||
push cx
|
||||
call membank0r16
|
||||
pop cx
|
||||
add cx,2
|
||||
push ax
|
||||
call membank0r8
|
||||
mov bl,al
|
||||
pop ax
|
||||
mov cx,ax
|
||||
call dword near [memtabler8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_LdL_16br 0
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
add cx,bx
|
||||
push cx
|
||||
call membank0r16
|
||||
pop cx
|
||||
add cx,2
|
||||
push ax
|
||||
call membank0r8
|
||||
mov bl,al
|
||||
pop ax
|
||||
mov cx,ax
|
||||
call dword near [memtabler16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_LdL_8bw 0
|
||||
push ax
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
add cx,bx
|
||||
push cx
|
||||
call membank0r16
|
||||
pop cx
|
||||
add cx,2
|
||||
push ax
|
||||
call membank0r8
|
||||
mov bl,al
|
||||
pop ax
|
||||
mov cx,ax
|
||||
pop ax
|
||||
call dword near [memtablew8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_LdL_16bw 0
|
||||
push ax
|
||||
mov bl,[esi]
|
||||
mov ecx,[xd]
|
||||
inc esi
|
||||
add cx,bx
|
||||
push cx
|
||||
call membank0r16
|
||||
pop cx
|
||||
add cx,2
|
||||
push ax
|
||||
call membank0r8
|
||||
mov bl,al
|
||||
pop ax
|
||||
mov cx,ax
|
||||
pop ax
|
||||
call dword near [memtablew16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
; 22. Stack Relative -- d,s
|
||||
|
||||
%macro addr_dCs_8br 0
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0r8
|
||||
%endmacro
|
||||
|
||||
%macro addr_dCs_16br 0
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0r16
|
||||
%endmacro
|
||||
|
||||
%macro addr_dCs_8bw 0
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0w8
|
||||
%endmacro
|
||||
|
||||
%macro addr_dCs_16bw 0
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0w16
|
||||
%endmacro
|
||||
|
||||
; 23. Stack Relative Indirect Indexed -- (d,s),y (TESTED)
|
||||
|
||||
%macro addr_BdCsBCy_8br 0
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0r16
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_BdCsBCy_16br 0
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0r16
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtabler16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_BdCsBCy_8bw 0
|
||||
push ax
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0r16
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
pop ax
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew8+ebx*4]
|
||||
%endmacro
|
||||
|
||||
%macro addr_BdCsBCy_16bw 0
|
||||
push ax
|
||||
mov bl,[esi]
|
||||
mov cx,[xs]
|
||||
inc esi
|
||||
add cx,bx
|
||||
call membank0r16
|
||||
mov cx,ax
|
||||
mov bl,[xdb]
|
||||
pop ax
|
||||
add cx,[xy]
|
||||
jnc .np
|
||||
inc bl
|
||||
.np
|
||||
call dword near [memtablew16+ebx*4]
|
||||
%endmacro
|
||||
|
||||
Reference in New Issue
Block a user