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gbemu_cb.inc
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gbemu_cb.inc
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/************************************************************************
* gbemu_cb.inc
* Emulation of the Gameboy CPU
* (Opcodes after prefix byte 0xcb)
*
************************************************************************
*
* Phoinix,
* Nintendo Gameboy(TM) emulator for the Palm OS(R) Computing Platform
*
* (c)2000-2007 Bodo Wenzel
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
************************************************************************
* History:
*
* $Log: gbemu_cb.inc,v $
* Revision 1.6 2007/07/01 10:12:51 bodowenzel
* Cleanup
*
* Revision 1.5 2007/01/03 10:24:44 bodowenzel
* Optimized swap flag evaluation
*
* Revision 1.4 2005/01/30 19:34:07 bodowenzel
* Added labels for all combo parts
*
* Revision 1.3 2002/10/19 08:08:11 bodowenzel
* History cleanup, Javadoc-style header
*
* Revision 1.2 2001/12/30 18:47:11 bodowenzel
* CVS keyword Log was faulty
*
* Revision 1.1.1.1 2001/12/16 13:38:47 bodowenzel
* Import
*
************************************************************************
* Pre-CVS History (developed as PalmBoy):
*
* 2001-07-21 Bodo Wenzel Changed syntax to CPP + GAS
* 2000-09-29 Bodo Wenzel Some improvements
* 2000-02-23 Bodo Wenzel Creation
************************************************************************
*/
.macro cb_00 /* rlc b */
cb_00:
swap %d6
swap %d5
move.b %d5,%d0
roxl.b #1,%d0
rol.b #1,%d5
move %sr,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_01 /* rlc c */
cb_01:
swap %d6
move.b %d5,%d0
roxl.b #1,%d0
rol.b #1,%d5
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_02 /* rlc d */
cb_02:
swap %d6
swap %d4
move.b %d4,%d0
roxl.b #1,%d0
rol.b #1,%d4
move %sr,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_03 /* rlc e */
cb_03:
swap %d6
move.b %d4,%d0
roxl.b #1,%d0
rol.b #1,%d4
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_04 /* rlc h */
cb_04:
swap %d6
swap %d3
move.b %d3,%d0
roxl.b #1,%d0
rol.b #1,%d3
move %sr,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_05 /* rlc l */
cb_05:
swap %d6
move.b %d3,%d0
roxl.b #1,%d0
rol.b #1,%d3
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_06 /* rlc (hl) */
cb_06:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
roxl.b #1,%d0
move.b (%a3),%d0
rol.b #1,%d0
move %sr,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_07 /* rlc a */
cb_07:
swap %d6
move.b %d7,%d0
roxl.b #1,%d0
rol.b #1,%d7
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_08 /* rrc b */
cb_08:
swap %d6
swap %d5
move.b %d5,%d0
roxr.b #1,%d0
ror.b #1,%d5
move %sr,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_09 /* rrc c */
cb_09:
swap %d6
move.b %d5,%d0
roxr.b #1,%d0
ror.b #1,%d5
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_0a /* rrc d */
cb_0a:
swap %d6
swap %d4
move.b %d4,%d0
roxr.b #1,%d0
ror.b #1,%d4
move %sr,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_0b /* rrc e */
cb_0b:
swap %d6
move.b %d4,%d0
roxr.b #1,%d0
ror.b #1,%d4
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_0c /* rrc h */
cb_0c:
swap %d6
swap %d3
move.b %d3,%d0
roxr.b #1,%d0
ror.b #1,%d3
move %sr,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_0d /* rrc l */
cb_0d:
swap %d6
move.b %d3,%d0
roxr.b #1,%d0
ror.b #1,%d3
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_0e /* rrc (hl) */
cb_0e:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
roxr.b #1,%d0
move.b (%a3),%d0
ror.b #1,%d0
move %sr,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_0f /* rrc a */
cb_0f:
swap %d6
move.b %d7,%d0
roxr.b #1,%d0
ror.b #1,%d7
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_10 /* rl b */
cb_10:
swap %d6
swap %d5
move %d6,%ccr
roxl.b #1,%d5
move %sr,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_11 /* rl c */
cb_11:
swap %d6
move %d6,%ccr
roxl.b #1,%d5
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_12 /* rl d */
cb_12:
swap %d6
swap %d4
move %d6,%ccr
roxl.b #1,%d4
move %sr,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_13 /* rl e */
cb_13:
swap %d6
move %d6,%ccr
roxl.b #1,%d4
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_14 /* rl h */
cb_14:
swap %d6
swap %d3
move %d6,%ccr
roxl.b #1,%d3
move %sr,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_15 /* rl l */
cb_15:
swap %d6
move %d6,%ccr
roxl.b #1,%d3
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_16 /* rl (hl) */
cb_16:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
move %d6,%ccr
roxl.b #1,%d0
move %sr,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_17 /* rl a */
cb_17:
swap %d6
move %d6,%ccr
roxl.b #1,%d7
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_18 /* rr b */
cb_18:
swap %d6
swap %d5
move %d6,%ccr
roxr.b #1,%d5
move %sr,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_19 /* rr c */
cb_19:
swap %d6
move %d6,%ccr
roxr.b #1,%d5
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_1a /* rr d */
cb_1a:
swap %d6
swap %d4
move %d6,%ccr
roxr.b #1,%d4
move %sr,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_1b /* rr e */
cb_1b:
swap %d6
move %d6,%ccr
roxr.b #1,%d4
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_1c /* rr h */
cb_1c:
swap %d6
swap %d3
move %d6,%ccr
roxr.b #1,%d3
move %sr,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_1d /* rr l */
cb_1d:
swap %d6
move %d6,%ccr
roxr.b #1,%d3
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_1e /* rr (hl) */
cb_1e:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
move %d6,%ccr
roxr.b #1,%d0
move %sr,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_1f /* rr a */
cb_1f:
swap %d6
move %d6,%ccr
roxr.b #1,%d7
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_20 /* sla b */
cb_20:
swap %d6
swap %d5
asl.b #1,%d5
move %sr,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_21 /* sla c */
cb_21:
swap %d6
asl.b #1,%d5
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_22 /* sla d */
cb_22:
swap %d6
swap %d4
asl.b #1,%d4
move %sr,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_23 /* sla e */
cb_23:
swap %d6
asl.b #1,%d4
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_24 /* sla h */
cb_24:
swap %d6
swap %d3
asl.b #1,%d3
move %sr,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_25 /* sla l */
cb_25:
swap %d6
asl.b #1,%d3
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_26 /* sla (hl) */
cb_26:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
asl.b #1,%d0
move %sr,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_27 /* sla a */
cb_27:
swap %d6
asl.b #1,%d7
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_28 /* sra b */
cb_28:
swap %d6
swap %d5
asr.b #1,%d5
move %sr,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_29 /* sra c */
cb_29:
swap %d6
asr.b #1,%d5
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_2a /* sra d */
cb_2a:
swap %d6
swap %d4
asr.b #1,%d4
move %sr,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_2b /* sra e */
cb_2b:
swap %d6
asr.b #1,%d4
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_2c /* sra h */
cb_2c:
swap %d6
swap %d3
asr.b #1,%d3
move %sr,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_2d /* sra l */
cb_2d:
swap %d6
asr.b #1,%d3
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_2e /* sra (hl) */
cb_2e:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
asr.b #1,%d0
move %sr,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_2f /* sra a */
cb_2f:
swap %d6
asr.b #1,%d7
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_30 /* swap b */
cb_30:
swap %d6
swap %d5
rol.b #4,%d5
move %sr,%d6
and.b #~m68kMaskC,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_31 /* swap c */
cb_31:
swap %d6
rol.b #4,%d5
move %sr,%d6
and.b #~m68kMaskC,%d6
swap %d6
next_pc
.endm
.macro cb_32 /* swap d */
cb_32:
swap %d6
swap %d4
rol.b #4,%d4
move %sr,%d6
and.b #~m68kMaskC,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_33 /* swap e */
cb_33:
swap %d6
rol.b #4,%d4
move %sr,%d6
and.b #~m68kMaskC,%d6
swap %d6
next_pc
.endm
.macro cb_34 /* swap h */
cb_34:
swap %d6
swap %d3
rol.b #4,%d3
move %sr,%d6
and.b #~m68kMaskC,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_35 /* swap l */
cb_35:
swap %d6
rol.b #4,%d3
move %sr,%d6
and.b #~m68kMaskC,%d6
swap %d6
next_pc
.endm
.macro cb_36 /* swap (hl) */
cb_36:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
rol.b #4,%d0
move %sr,%d6
and.b #~m68kMaskC,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_37 /* swap a */
cb_37:
swap %d6
rol.b #4,%d7
move %sr,%d6
and.b #~m68kMaskC,%d6
swap %d6
next_pc
.endm
.macro cb_38 /* srl b */
cb_38:
swap %d6
swap %d5
lsr.b #1,%d5
move %sr,%d6
swap %d5
swap %d6
next_pc
.endm
.macro cb_39 /* srl c */
cb_39:
swap %d6
lsr.b #1,%d5
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_3a /* srl d */
cb_3a:
swap %d6
swap %d4
lsr.b #1,%d4
move %sr,%d6
swap %d4
swap %d6
next_pc
.endm
.macro cb_3b /* srl e */
cb_3b:
swap %d6
lsr.b #1,%d4
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_3c /* srl h */
cb_3c:
swap %d6
swap %d3
lsr.b #1,%d3
move %sr,%d6
swap %d3
swap %d6
next_pc
.endm
.macro cb_3d /* srl l */
cb_3d:
swap %d6
lsr.b #1,%d3
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_3e /* srl (hl) */
cb_3e:
swap %d6
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
move.b (%a3),%d0
lsr.b #1,%d0
move %sr,%d6
mem_wr %d2
swap %d6
next_pc
.endm
.macro cb_3f /* srl a */
cb_3f:
swap %d6
lsr.b #1,%d7
move %sr,%d6
swap %d6
next_pc
.endm
.macro cb_40 /* bit 0,b */
cb_40:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #16,%d5
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_41 /* bit 0,c */
cb_41:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #0,%d5
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_42 /* bit 0,d */
cb_42:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #16,%d4
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_43 /* bit 0,e */
cb_43:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #0,%d4
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_44 /* bit 0,h */
cb_44:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #16,%d3
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_45 /* bit 0,l */
cb_45:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #0,%d3
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_46 /* bit 0,(hl) */
cb_46:
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #0,(%a3)
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_47 /* bit 0,a */
cb_47:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #0,%d7
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_48 /* bit 1,b */
cb_48:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #17,%d5
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_49 /* bit 1,c */
cb_49:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #1,%d5
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_4a /* bit 1,d */
cb_4a:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #17,%d4
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_4b /* bit 1,e */
cb_4b:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #1,%d4
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_4c /* bit 1,h */
cb_4c:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #17,%d3
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_4d /* bit 1,l */
cb_4d:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #1,%d3
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_4e /* bit 1,(hl) */
cb_4e:
move.b %d3,%d1
move.l %d3,%d2
swap %d2
mem_rd %d2
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #1,(%a3)
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_4f /* bit 1,a */
cb_4f:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #1,%d7
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_50 /* bit 2,b */
cb_50:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #18,%d5
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_51 /* bit 2,c */
cb_51:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #2,%d5
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_52 /* bit 2,d */
cb_52:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #18,%d4
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_53 /* bit 2,e */
cb_53:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #2,%d4
jeq z\@
bchg %d0,%d6
z\@: next_pc
.endm
.macro cb_54 /* bit 2,h */
cb_54:
moveq #m68kFlagZ,%d0
bset %d0,%d6
btst #18,%d3
jeq z\@
bchg %d0,%d6
z\@: next_pc