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root/cebix/BasiliskII/src/uae_cpu/gencpu.c

Comparing BasiliskII/src/uae_cpu/gencpu.c (file contents):
Revision 1.7 by cebix, 1999-10-28T16:00:23Z vs.
Revision 1.16 by gbeauche, 2002-01-06T08:21:09Z

#	Line 221 | Line 221 | static void sync_m68k_pc (void)
221		}
222
223		/* getv == 1: fetch data; getv != 0: check for odd address. If movem != 0,
224	<	* the calling routine handles Apdi and Aipi modes. */
224	>	* the calling routine handles Apdi and Aipi modes.
225	>	* gb-- movem == 2 means the same thing but for a MOVE16 instruction */
226		static void genamode (amodes mode, char *reg, wordsizes size, char *name, int getv, int movem)
227		{
228		start_brace ();
#	Line 232 | Line 233 | static void genamode (amodes mode, char
233		if (getv == 1)
234		switch (size) {
235		case sz_byte:
236	<	#ifdef AMIGA
236	>	#if defined(AMIGA) && !defined(WARPUP)
237		/* sam: I don't know why gcc.2.7.2.1 produces a code worse */
238		/* if it is not done like that: */
239		printf ("\tuae_s8 %s = ((uae_u8*)&m68k_dreg(regs, %s))[3];\n", name, reg);
#	Line 241 | Line 242 | static void genamode (amodes mode, char
242		#endif
243		break;
244		case sz_word:
245	<	#ifdef AMIGA
245	>	#if defined(AMIGA) && !defined(WARPUP)
246		printf ("\tuae_s16 %s = ((uae_s16*)&m68k_dreg(regs, %s))[1];\n", name, reg);
247		#else
248		printf ("\tuae_s16 %s = m68k_dreg(regs, %s);\n", name, reg);
#	Line 714 | Line 715 | static void genflags_normal (flagtypes t
715
716		static void genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst)
717		{
718	<	#ifdef SPARC_V8_ASSEMBLY
719	<	switch(type)
720	<	{
721	<	case flag_add:
721	<	start_brace();
722	<	printf("\tuae_u32 %s;\n", value);
723	<	switch(size)
724	<	{
725	<	case sz_byte:
726	<	printf("\t%s = sparc_v8_flag_add_8(M68K_FLAGS_ADDR, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
727	<	break;
728	<	case sz_word:
729	<	printf("\t%s = sparc_v8_flag_add_16(M68K_FLAGS_ADDR, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
730	<	break;
731	<	case sz_long:
732	<	printf("\t%s = sparc_v8_flag_add_32(M68K_FLAGS_ADDR, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
733	<	break;
734	<	}
735	<	return;
736	<	}
737	<	#elif defined(SPARC_V9_ASSEMBLY)
738	<	switch(type)
739	<	{
740	<	case flag_add:
741	<	start_brace();
742	<	printf("\tuae_u32 %s;\n", value);
743	<	switch(size)
744	<	{
745	<	case sz_byte:
746	<	printf("\t%s = sparc_v9_flag_add_8(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
747	<	break;
748	<	case sz_word:
749	<	printf("\t%s = sparc_v9_flag_add_16(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
750	<	break;
751	<	case sz_long:
752	<	printf("\t%s = sparc_v9_flag_add_32(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
753	<	break;
754	<	}
755	<	return;
756	<
757	<	case flag_sub:
758	<	start_brace();
759	<	printf("\tuae_u32 %s;\n", value);
760	<	switch(size)
761	<	{
762	<	case sz_byte:
763	<	printf("\t%s = sparc_v9_flag_sub_8(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
764	<	break;
765	<	case sz_word:
766	<	printf("\t%s = sparc_v9_flag_sub_16(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
767	<	break;
768	<	case sz_long:
769	<	printf("\t%s = sparc_v9_flag_sub_32(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", value, src, dst);
770	<	break;
771	<	}
772	<	return;
773	<
774	<	case flag_cmp:
775	<	switch(size)
776	<	{
777	<	case sz_byte:
778	<	printf("\tsparc_v9_flag_cmp_8(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", src, dst);
779	<	break;
780	<	case sz_word:
781	<	printf("\tsparc_v9_flag_cmp_16(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", src, dst);
782	<	break;
783	<	case sz_long:
784	<	printf("\tsparc_v9_flag_cmp_32(&regflags, (uae_u32)(%s), (uae_u32)(%s));\n", src, dst);
785	<	break;
786	<	}
787	<	return;
788	<
789	<	case flag_logical:
790	<	if (strcmp(value, "0") == 0) {
791	<	printf("\tregflags.nzvc = 0x04;\n");
792	<	} else {
793	<	switch(size) {
794	<	case sz_byte:
795	<	printf("\tsparc_v9_flag_test_8(&regflags, (uae_u32)(%s));\n", value);
796	<	break;
797	<	case sz_word:
798	<	printf("\tsparc_v9_flag_test_16(&regflags, (uae_u32)(%s));\n", value);
799	<	break;
800	<	case sz_long:
801	<	printf("\tsparc_v9_flag_test_32(&regflags, (uae_u32)(%s));\n", value);
802	<	break;
803	<	}
804	<	}
805	<	return;
806	<
807	<	#if 0
808	<	case flag_logical_noclobber:
809	<	printf("\t{uae_u32 old_flags = regflags.nzvc & ~0x0C;\n");
810	<	if (strcmp(value, "0") == 0) {
811	<	printf("\tregflags.nzvc = old_flags | 0x04;\n");
812	<	} else {
813	<	switch(size) {
814	<	case sz_byte:
815	<	printf("\tsparc_v9_flag_test_8(&regflags, (uae_u32)(%s));\n", value);
816	<	break;
817	<	case sz_word:
818	<	printf("\tsparc_v9_flag_test_16(&regflags, (uae_u32)(%s));\n", value);
819	<	break;
820	<	case sz_long:
821	<	printf("\tsparc_v9_flag_test_32(&regflags, (uae_u32)(%s));\n", value);
822	<	break;
823	<	}
824	<	printf("\tregflags.nzvc |= old_flags;\n");
825	<	}
826	<	printf("\t}\n");
827	<	return;
828	<	#endif
829	<	}
830	<	#elif defined(X86_ASSEMBLY)
718	>	/* Temporarily deleted 68k/ARM flag optimizations.  I'd prefer to have
719	>	them in the appropriate m68k.h files and use just one copy of this
720	>	code here.  The API can be changed if necessary.  */
721	>	#ifdef OPTIMIZED_FLAGS
722		switch (type) {
723		case flag_add:
724		case flag_sub:
#	Line 842 | Line 733 | static void genflags (flagtypes type, wo
733		/* At least some of those casts are fairly important! */
734		switch (type) {
735		case flag_logical_noclobber:
736	<	printf ("\t{uae_u32 oldcznv = regflags.cznv & ~0xC0;\n");
736	>	printf ("\t{uae_u32 oldcznv = GET_CZNV & ~(FLAGVAL_Z | FLAGVAL_N);\n");
737		if (strcmp (value, "0") == 0) {
738	<	printf ("\tregflags.cznv = olcznv | 64;\n");
738	>	printf ("\tSET_CZNV (olcznv | FLAGVAL_Z);\n");
739		} else {
740		switch (size) {
741	<	case sz_byte: printf ("\tx86_flag_testb ((uae_s8)(%s));\n", value); break;
742	<	case sz_word: printf ("\tx86_flag_testw ((uae_s16)(%s));\n", value); break;
743	<	case sz_long: printf ("\tx86_flag_testl ((uae_s32)(%s));\n", value); break;
741	>	case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
742	>	case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
743	>	case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
744		}
745	<	printf ("\tregflags.cznv |= oldcznv;\n");
745	>	printf ("\tIOR_CZNV (oldcznv);\n");
746		}
747		printf ("\t}\n");
748		return;
749		case flag_logical:
750		if (strcmp (value, "0") == 0) {
751	<	printf ("\tregflags.cznv = 64;\n");
751	>	printf ("\tSET_CZNV (FLAGVAL_Z);\n");
752		} else {
753		switch (size) {
754	<	case sz_byte: printf ("\tx86_flag_testb ((uae_s8)(%s));\n", value); break;
755	<	case sz_word: printf ("\tx86_flag_testw ((uae_s16)(%s));\n", value); break;
756	<	case sz_long: printf ("\tx86_flag_testl ((uae_s32)(%s));\n", value); break;
754	>	case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
755	>	case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
756	>	case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
757		}
758		}
759		return;
760
761		case flag_add:
762		switch (size) {
763	<	case sz_byte: printf ("\tx86_flag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
764	<	case sz_word: printf ("\tx86_flag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
765	<	case sz_long: printf ("\tx86_flag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
763	>	case sz_byte: printf ("\toptflag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
764	>	case sz_word: printf ("\toptflag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
765	>	case sz_long: printf ("\toptflag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
766		}
767		return;
768
769		case flag_sub:
770		switch (size) {
771	<	case sz_byte: printf ("\tx86_flag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
772	<	case sz_word: printf ("\tx86_flag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
773	<	case sz_long: printf ("\tx86_flag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
771	>	case sz_byte: printf ("\toptflag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
772	>	case sz_word: printf ("\toptflag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
773	>	case sz_long: printf ("\toptflag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
774		}
775		return;
776
777		case flag_cmp:
778		switch (size) {
779	<	case sz_byte: printf ("\tx86_flag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break;
780	<	case sz_word: printf ("\tx86_flag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break;
781	<	case sz_long: printf ("\tx86_flag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break;
779	>	case sz_byte: printf ("\toptflag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break;
780	>	case sz_word: printf ("\toptflag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break;
781	>	case sz_long: printf ("\toptflag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break;
782		}
783		return;
784
785		default:
786		break;
787		}
897	–	#elif defined(M68K_FLAG_OPT)
898	–	/* sam: here I'm cloning what X86_ASSEMBLY does */
899	–	#define EXT(size)  (size==sz_byte?"b":(size==sz_word?"w":"l"))
900	–	#define CAST(size) (size==sz_byte?"uae_s8":(size==sz_word?"uae_s16":"uae_s32"))
901	–	switch (type) {
902	–	case flag_add:
903	–	case flag_sub:
904	–	start_brace ();
905	–	printf ("\tuae_u32 %s;\n", value);
906	–	break;
907	–
908	–	default:
909	–	break;
910	–	}
911	–
912	–	switch (type) {
913	–	case flag_logical:
914	–	if (strcmp (value, "0") == 0) {
915	–	printf ("\t*(uae_u16 *)&regflags = 4;\n");  /* Z = 1 */
916	–	} else {
917	–	printf ("\tm68k_flag_tst (%s, (%s)(%s));\n",
918	–	EXT (size), CAST (size), value);
919	–	}
920	–	return;
921	–
922	–	case flag_add:
923	–	printf ("\t{uae_u16 ccr;\n");
924	–	printf ("\tm68k_flag_add (%s, (%s)%s, (%s)(%s), (%s)(%s));\n",
925	–	EXT (size), CAST (size), value, CAST (size), src, CAST (size), dst);
926	–	printf ("\t((uae_u16*)&regflags)[1]=((uae_u16*)&regflags)[0]=ccr;}\n");
927	–	return;
928	–
929	–	case flag_sub:
930	–	printf ("\t{uae_u16 ccr;\n");
931	–	printf ("\tm68k_flag_sub (%s, (%s)%s, (%s)(%s), (%s)(%s));\n",
932	–	EXT (size), CAST (size), value, CAST (size), src, CAST (size), dst);
933	–	printf ("\t((uae_u16*)&regflags)[1]=((uae_u16*)&regflags)[0]=ccr;}\n");
934	–	return;
935	–
936	–	case flag_cmp:
937	–	printf ("\tm68k_flag_cmp (%s, (%s)(%s), (%s)(%s));\n",
938	–	EXT (size), CAST (size), src, CAST (size), dst);
939	–	return;
940	–
941	–	default:
942	–	break;
943	–	}
944	–	#elif defined(ACORN_FLAG_OPT) && defined(__GNUC_MINOR__)
945	–	/*
946	–	* This is new. Might be quite buggy.
947	–	*/
948	–	switch (type) {
949	–	case flag_av:
950	–	case flag_sv:
951	–	case flag_zn:
952	–	case flag_addx:
953	–	case flag_subx:
954	–	break;
955	–
956	–	case flag_logical:
957	–	if (strcmp (value, "0") == 0) {
958	–	/* v=c=n=0 z=1 */
959	–	printf ("\t*(ULONG*)&regflags = 0x40000000;\n");
960	–	return;
961	–	} else {
962	–	start_brace ();
963	–	switch (size) {
964	–	case sz_byte:
965	–	printf ("\tUBYTE ccr;\n");
966	–	printf ("\tULONG shift;\n");
967	–	printf ("\t__asm__(\"mov %%2,%%1,lsl#24\n\ttst %%2,%%2\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
968	–	"\t: \"=r\" (ccr) : \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value);
969	–	printf ("\t*((UBYTE*)&regflags+3) = ccr;\n");
970	–	return;
971	–	case sz_word:
972	–	printf ("\tUBYTE ccr;\n");
973	–	printf ("\tULONG shift;\n");
974	–	printf ("\t__asm__(\"mov %%2,%%1,lsl#16\n\ttst %%2,%%2\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
975	–	"\t: \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value);
976	–	printf ("\t*((UBYTE*)&regflags+3) = ccr;\n");
977	–	return;
978	–	case sz_long:
979	–	printf ("\tUBYTE ccr;\n");
980	–	printf ("\t__asm__(\"tst %%1,%%1\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
981	–	"\t: \"=r\" (ccr) : \"r\" ((LONG)%s) : \"cc\" );\n", value);
982	–	printf ("\t*((UBYTE*)&regflags+3) = ccr;\n");
983	–	return;
984	–	}
985	–	}
986	–	break;
987	–	case flag_add:
988	–	if (strcmp (dst, "0") == 0) {
989	–	printf ("/* Error! Hier muss Peter noch was machen !!! (ADD-Flags) */");
990	–	} else {
991	–	start_brace ();
992	–	switch (size) {
993	–	case sz_byte:
994	–	printf ("\tULONG ccr, shift, %s;\n", value);
995	–	printf ("\t__asm__(\"mov %%4,%%3,lsl#24\n\tadds %%0,%%4,%%2,lsl#24\n\tmov %%0,%%0,asr#24\n\tmov %%1,r15\n\torr %%1,%%1,%%1,lsr#29\"\n"
996	–	"\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
997	–	printf ("\t*(ULONG*)&regflags = ccr;\n");
998	–	return;
999	–	case sz_word:
1000	–	printf ("\tULONG ccr, shift, %s;\n", value);
1001	–	printf ("\t__asm__(\"mov %%4,%%3,lsl#16\n\tadds %%0,%%4,%%2,lsl#16\n\tmov %%0,%%0,asr#16\n\tmov %%1,r15\n\torr %%1,%%1,%%1,lsr#29\"\n"
1002	–	"\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
1003	–	printf ("\t*(ULONG*)&regflags = ccr;\n");
1004	–	return;
1005	–	case sz_long:
1006	–	printf ("\tULONG ccr, %s;\n", value);
1007	–	printf ("\t__asm__(\"adds %%0,%%3,%%2\n\tmov %%1,r15\n\torr %%1,%%1,%%1,lsr#29\"\n"
1008	–	"\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", value, src, dst);
1009	–	printf ("\t*(ULONG*)&regflags = ccr;\n");
1010	–	return;
1011	–	}
1012	–	}
1013	–	break;
1014	–	case flag_sub:
1015	–	if (strcmp (dst, "0") == 0) {
1016	–	printf ("/* Error! Hier muss Peter noch was machen !!! (SUB-Flags) */");
1017	–	} else {
1018	–	start_brace ();
1019	–	switch (size) {
1020	–	case sz_byte:
1021	–	printf ("\tULONG ccr, shift, %s;\n", value);
1022	–	printf ("\t__asm__(\"mov %%4,%%3,lsl#24\n\tsubs %%0,%%4,%%2,lsl#24\n\tmov %%0,%%0,asr#24\n\tmov %%1,r15\n\teor %%1,%%1,#0x20000000\n\torr %%1,%%1,%%1,lsr#29\"\n"
1023	–	"\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
1024	–	printf ("\t*(ULONG*)&regflags = ccr;\n");
1025	–	return;
1026	–	case sz_word:
1027	–	printf ("\tULONG ccr, shift, %s;\n", value);
1028	–	printf ("\t__asm__(\"mov %%4,%%3,lsl#16\n\tsubs %%0,%%4,%%2,lsl#16\n\tmov %%0,%%0,asr#16\n\tmov %%1,r15\n\teor %%1,%%1,#0x20000000\n\torr %%1,%%1,%%1,lsr#29\"\n"
1029	–	"\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
1030	–	printf ("\t*(ULONG*)&regflags = ccr;\n");
1031	–	return;
1032	–	case sz_long:
1033	–	printf ("\tULONG ccr, %s;\n", value);
1034	–	printf ("\t__asm__(\"subs %%0,%%3,%%2\n\tmov %%1,r15\n\teor %%1,%%1,#0x20000000\n\torr %%1,%%1,%%1,lsr#29\"\n"
1035	–	"\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", value, src, dst);
1036	–	printf ("\t*(ULONG*)&regflags = ccr;\n");
1037	–	return;
1038	–	}
1039	–	}
1040	–	break;
1041	–	case flag_cmp:
1042	–	if (strcmp (dst, "0") == 0) {
1043	–	printf ("/*Error! Hier muss Peter noch was machen !!! (CMP-Flags)*/");
1044	–	} else {
1045	–	start_brace ();
1046	–	switch (size) {
1047	–	case sz_byte:
1048	–	printf ("\tULONG shift, ccr;\n");
1049	–	printf ("\t__asm__(\"mov %%3,%%2,lsl#24\n\tcmp %%3,%%1,lsl#24\n\tmov %%0,r15,lsr#24\n\teor %%0,%%0,#0x20\"\n"
1050	–	"\t: \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", src, dst);
1051	–	printf ("\t*((UBYTE*)&regflags+3) = ccr;\n");
1052	–	return;
1053	–	case sz_word:
1054	–	printf ("\tULONG shift, ccr;\n");
1055	–	printf ("\t__asm__(\"mov %%3,%%2,lsl#16\n\tcmp %%3,%%1,lsl#16\n\tmov %%0,r15,lsr#24\n\teor %%0,%%0,#0x20\"\n"
1056	–	"\t: \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", src, dst);
1057	–	printf ("\t*((UBYTE*)&regflags+3) = ccr;\n");
1058	–	return;
1059	–	case sz_long:
1060	–	printf ("\tULONG ccr;\n");
1061	–	printf ("\t__asm__(\"cmp %%2,%%1\n\tmov %%0,r15,lsr#24\n\teor %%0,%%0,#0x20\"\n"
1062	–	"\t: \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", src, dst);
1063	–	printf ("\t*((UBYTE*)&regflags+3) = ccr;\n");
1064	–	/*printf ("\tprintf (\"%%08x %%08x %%08x\\n\", %s, %s, *((ULONG*)&regflags));\n", src, dst); */
1065	–	return;
1066	–	}
1067	–	}
1068	–	break;
1069	–	}
788		#endif
789	+
790		genflags_normal (type, size, value, src, dst);
791		}
792
#	Line 1191 | Line 910 | static void gen_opcode (unsigned long in
910		genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
911		break;
912		case i_SBCD:
1194	–	/* Let's hope this works... */
913		genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
914		genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
915		start_brace ();
916		printf ("\tuae_u16 newv_lo = (dst & 0xF) - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
917		printf ("\tuae_u16 newv_hi = (dst & 0xF0) - (src & 0xF0);\n");
918	<	printf ("\tuae_u16 newv;\n");
919	<	printf ("\tint cflg;\n");
920	<	printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
921	<	printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
922	<	printf ("\tSET_CFLG (cflg = (newv_hi & 0x1F0) > 0x90);\n");
918	>	printf ("\tuae_u16 newv, tmp_newv;\n");
919	>	printf ("\tint bcd = 0;\n");
920	>	printf ("\tnewv = tmp_newv = newv_hi + newv_lo;\n");
921	>	printf ("\tif (newv_lo & 0xF0) { newv -= 6; bcd = 6; };\n");
922	>	printf ("\tif ((((dst & 0xFF) - (src & 0xFF) - (GET_XFLG ? 1 : 0)) & 0x100) > 0xFF) { newv -= 0x60; }\n");
923	>	printf ("\tSET_CFLG ((((dst & 0xFF) - (src & 0xFF) - bcd - (GET_XFLG ? 1 : 0)) & 0x300) > 0xFF);\n");
924		duplicate_carry ();
1206	–	printf ("\tif (cflg) newv -= 0x60;\n");
925		genflags (flag_zn, curi->size, "newv", "", "");
926	<	genflags (flag_sv, curi->size, "newv", "src", "dst");
926	>	printf ("\tSET_VFLG ((tmp_newv & 0x80) != 0 && (newv & 0x80) == 0);\n");
927		genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
928		break;
929		case i_ADD:
#	Line 1237 | Line 955 | static void gen_opcode (unsigned long in
955		start_brace ();
956		printf ("\tuae_u16 newv_lo = (src & 0xF) + (dst & 0xF) + (GET_XFLG ? 1 : 0);\n");
957		printf ("\tuae_u16 newv_hi = (src & 0xF0) + (dst & 0xF0);\n");
958	<	printf ("\tuae_u16 newv;\n");
958	>	printf ("\tuae_u16 newv, tmp_newv;\n");
959		printf ("\tint cflg;\n");
960	<	printf ("\tif (newv_lo > 9) { newv_lo +=6; }\n");
961	<	printf ("\tnewv = newv_hi + newv_lo;");
962	<	printf ("\tSET_CFLG (cflg = (newv & 0x1F0) > 0x90);\n");
1245	<	duplicate_carry ();
960	>	printf ("\tnewv = tmp_newv = newv_hi + newv_lo;");
961	>	printf ("\tif (newv_lo > 9) { newv += 6; }\n");
962	>	printf ("\tcflg = (newv & 0x3F0) > 0x90;\n");
963		printf ("\tif (cflg) newv += 0x60;\n");
964	+	printf ("\tSET_CFLG (cflg);\n");
965	+	duplicate_carry ();
966		genflags (flag_zn, curi->size, "newv", "", "");
967	<	genflags (flag_sv, curi->size, "newv", "src", "dst");
967	>	printf ("\tSET_VFLG ((tmp_newv & 0x80) == 0 && (newv & 0x80) != 0);\n");
968		genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
969		break;
970		case i_NEG:
#	Line 1269 | Line 988 | static void gen_opcode (unsigned long in
988		printf ("\tuae_u16 newv_hi = - (src & 0xF0);\n");
989		printf ("\tuae_u16 newv;\n");
990		printf ("\tint cflg;\n");
991	<	printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
992	<	printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
993	<	printf ("\tSET_CFLG (cflg = (newv_hi & 0x1F0) > 0x90);\n");
1275	<	duplicate_carry();
991	>	printf ("\tif (newv_lo > 9) { newv_lo -= 6; }\n");
992	>	printf ("\tnewv = newv_hi + newv_lo;");
993	>	printf ("\tcflg = (newv & 0x1F0) > 0x90;\n");
994		printf ("\tif (cflg) newv -= 0x60;\n");
995	+	printf ("\tSET_CFLG (cflg);\n");
996	+	duplicate_carry();
997		genflags (flag_zn, curi->size, "newv", "", "");
998		genastore ("newv", curi->smode, "srcreg", curi->size, "src");
999		break;
#	Line 1310 | Line 1030 | static void gen_opcode (unsigned long in
1030		else
1031		printf ("\tsrc &= 31;\n");
1032		printf ("\tdst ^= (1 << src);\n");
1033	<	printf ("\tSET_ZFLG ((dst & (1 << src)) >> src);\n");
1033	>	printf ("\tSET_ZFLG (((uae_u32)dst & (1 << src)) >> src);\n");
1034		genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
1035		break;
1036		case i_BCLR:
#	Line 1499 | Line 1219 | static void gen_opcode (unsigned long in
1219		m68k_pc_offset = 0;
1220		break;
1221		case i_RTD:
1502	–	printf ("\tcompiler_flush_jsr_stack();\n");
1222		genamode (Aipi, "7", sz_long, "pc", 1, 0);
1223		genamode (curi->smode, "srcreg", curi->size, "offs", 1, 0);
1224		printf ("\tm68k_areg(regs, 7) += offs;\n");
#	Line 1533 | Line 1252 | static void gen_opcode (unsigned long in
1252		need_endlabel = 1;
1253		break;
1254		case i_RTR:
1536	–	printf ("\tcompiler_flush_jsr_stack();\n");
1255		printf ("\tMakeSR();\n");
1256		genamode (Aipi, "7", sz_word, "sr", 1, 0);
1257		genamode (Aipi, "7", sz_long, "pc", 1, 0);
#	Line 1651 | Line 1369 | static void gen_opcode (unsigned long in
1369		printf ("\tuaecptr oldpc = m68k_getpc();\n");
1370		genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
1371		genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
1372	<	printf ("\tif(src == 0) { Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
1372	>	sync_m68k_pc ();
1373	>	/* Clear V flag when dividing by zero - Alcatraz Odyssey demo depends
1374	>	* on this (actually, it's doing a DIVS).  */
1375	>	printf ("\tif (src == 0) { SET_VFLG (0); Exception (5, oldpc); goto %s; } else {\n", endlabelstr);
1376		printf ("\tuae_u32 newv = (uae_u32)dst / (uae_u32)(uae_u16)src;\n");
1377		printf ("\tuae_u32 rem = (uae_u32)dst %% (uae_u32)(uae_u16)src;\n");
1378		/* The N flag appears to be set each time there is an overflow.
#	Line 1669 | Line 1390 | static void gen_opcode (unsigned long in
1390		printf ("\tuaecptr oldpc = m68k_getpc();\n");
1391		genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
1392		genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
1393	<	printf ("\tif(src == 0) { Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
1393	>	sync_m68k_pc ();
1394	>	printf ("\tif (src == 0) { SET_VFLG (0); Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
1395		printf ("\tuae_s32 newv = (uae_s32)dst / (uae_s32)(uae_s16)src;\n");
1396		printf ("\tuae_u16 rem = (uae_s32)dst %% (uae_s32)(uae_s16)src;\n");
1397		printf ("\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n");
#	Line 1929 | Line 1651 | static void gen_opcode (unsigned long in
1651		}
1652		printf ("\tcnt &= 63;\n");
1653		printf ("\tCLEAR_CZNV;\n");
1932	–	if (! source_is_imm1_8 (curi))
1933	–	force_range_for_rox ("cnt", curi->size);
1654		if (source_is_imm1_8 (curi))
1655		printf ("{");
1656	<	else
1656	>	else {
1657	>	force_range_for_rox ("cnt", curi->size);
1658		printf ("\tif (cnt > 0) {\n");
1659	+	}
1660		printf ("\tcnt--;\n");
1661		printf ("\t{\n\tuae_u32 carry;\n");
1662		printf ("\tuae_u32 loval = val >> (%d - cnt);\n", bit_size (curi->size) - 1);
#	Line 1959 | Line 1681 | static void gen_opcode (unsigned long in
1681		}
1682		printf ("\tcnt &= 63;\n");
1683		printf ("\tCLEAR_CZNV;\n");
1962	–	if (! source_is_imm1_8 (curi))
1963	–	force_range_for_rox ("cnt", curi->size);
1684		if (source_is_imm1_8 (curi))
1685		printf ("{");
1686	<	else
1686	>	else {
1687	>	force_range_for_rox ("cnt", curi->size);
1688		printf ("\tif (cnt > 0) {\n");
1689	+	}
1690		printf ("\tcnt--;\n");
1691		printf ("\t{\n\tuae_u32 carry;\n");
1692		printf ("\tuae_u32 hival = (val << 1) | GET_XFLG;\n");
#	Line 2120 | Line 1842 | static void gen_opcode (unsigned long in
1842		start_brace ();
1843		printf ("\tint regno = (src >> 12) & 15;\n");
1844		printf ("\tuae_u32 *regp = regs.regs + regno;\n");
1845	<	printf ("\tm68k_movec2(src & 0xFFF, regp);\n");
1845	>	printf ("\tif (! m68k_movec2(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
1846		break;
1847		case i_MOVE2C:
1848		genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1849		start_brace ();
1850		printf ("\tint regno = (src >> 12) & 15;\n");
1851		printf ("\tuae_u32 *regp = regs.regs + regno;\n");
1852	<	printf ("\tm68k_move2c(src & 0xFFF, regp);\n");
1852	>	printf ("\tif (! m68k_move2c(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
1853		break;
1854		case i_CAS:
1855		{
#	Line 2295 | Line 2017 | static void gen_opcode (unsigned long in
2017		break;
2018		case i_BFINS:
2019		printf ("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n");
2020	+	printf ("\tSET_NFLG (tmp & (1 << (width - 1)) ? 1 : 0);\n");
2021	+	printf ("\tSET_ZFLG (tmp == 0);\n");
2022		break;
2023		default:
2024		break;
#	Line 2416 | Line 2140 | static void gen_opcode (unsigned long in
2140		case i_CPUSHA:
2141		break;
2142		case i_MOVE16:
2143	<	printf ("\tuaecptr mems = m68k_areg(regs, srcreg) & ~15, memd;\n");
2144	<	printf ("\tdstreg = (%s >> 12) & 7;\n", gen_nextiword());
2145	<	printf ("\tmemd = m68k_areg(regs, dstreg) & ~15;\n");
2146	<	printf ("\tput_long(memd, get_long(mems));\n");
2147	<	printf ("\tput_long(memd+4, get_long(mems+4));\n");
2148	<	printf ("\tput_long(memd+8, get_long(mems+8));\n");
2149	<	printf ("\tput_long(memd+12, get_long(mems+12));\n");
2150	<	printf ("\tm68k_areg(regs, srcreg) += 16;\n");
2151	<	printf ("\tm68k_areg(regs, dstreg) += 16;\n");
2143	>	if ((opcode & 0xfff8) == 0xf620) {
2144	>	/* MOVE16 (Ax)+,(Ay)+ */
2145	>	printf ("\tuaecptr mems = m68k_areg(regs, srcreg) & ~15, memd;\n");
2146	>	printf ("\tdstreg = (%s >> 12) & 7;\n", gen_nextiword());
2147	>	printf ("\tmemd = m68k_areg(regs, dstreg) & ~15;\n");
2148	>	printf ("\tput_long(memd, get_long(mems));\n");
2149	>	printf ("\tput_long(memd+4, get_long(mems+4));\n");
2150	>	printf ("\tput_long(memd+8, get_long(mems+8));\n");
2151	>	printf ("\tput_long(memd+12, get_long(mems+12));\n");
2152	>	printf ("\tif (srcreg != dstreg)\n");
2153	>	printf ("\tm68k_areg(regs, srcreg) += 16;\n");
2154	>	printf ("\tm68k_areg(regs, dstreg) += 16;\n");
2155	>	}
2156	>	else {
2157	>	/* Other variants */
2158	>	genamode (curi->smode, "srcreg", curi->size, "mems", 0, 2);
2159	>	genamode (curi->dmode, "dstreg", curi->size, "memd", 0, 2);
2160	>	printf ("\tmemsa &= ~15;\n");
2161	>	printf ("\tmemda &= ~15;\n");
2162	>	printf ("\tput_long(memda, get_long(memsa));\n");
2163	>	printf ("\tput_long(memda+4, get_long(memsa+4));\n");
2164	>	printf ("\tput_long(memda+8, get_long(memsa+8));\n");
2165	>	printf ("\tput_long(memda+12, get_long(memsa+12));\n");
2166	>	if ((opcode & 0xfff8) == 0xf600)
2167	>	printf ("\tm68k_areg(regs, srcreg) += 16;\n");
2168	>	else if ((opcode & 0xfff8) == 0xf608)
2169	>	printf ("\tm68k_areg(regs, dstreg) += 16;\n");
2170	>	}
2171		break;
2172		case i_MMUOP:
2173		genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
#	Line 2447 | Line 2190 | static void generate_includes (FILE * f)
2190		fprintf (f, "#include \"memory.h\"\n");
2191		fprintf (f, "#include \"readcpu.h\"\n");
2192		fprintf (f, "#include \"newcpu.h\"\n");
2450	–	fprintf (f, "#include \"compiler.h\"\n");
2193		fprintf (f, "#include \"cputbl.h\"\n");
2194		}
2195
#	Line 2478 | Line 2220 | static void generate_one_opcode (int rp)
2220		}
2221		fprintf (stblfile, "{ op_%lx_%d, 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name);
2222		fprintf (headerfile, "extern cpuop_func op_%lx_%d;\n", opcode, postfix);
2223	<	printf ("unsigned long REGPARAM2 op_%lx_%d(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
2223	>	printf ("void REGPARAM2 op_%lx_%d(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
2224
2225		switch (table68k[opcode].stype) {
2226		case 0: smsk = 7; break;
#	Line 2487 | Line 2229 | static void generate_one_opcode (int rp)
2229		case 3: smsk = 7; break;
2230		case 4: smsk = 7; break;
2231		case 5: smsk = 63; break;
2232	+	case 7: smsk = 3; break;
2233		default: abort ();
2234		}
2235		dmsk = 7;
#	Line 2592 | Line 2335 | static void generate_one_opcode (int rp)
2335		gen_opcode (opcode);
2336		if (need_endlabel)
2337		printf ("%s: ;\n", endlabelstr);
2595	–	printf ("return %d;\n", insn_n_cycles);
2338		printf ("}\n");
2339		opcode_next_clev[rp] = next_cpu_level;
2340		opcode_last_postfix[rp] = postfix;
#	Line 2604 | Line 2346 | static void generate_func (void)
2346
2347		using_prefetch = 0;
2348		using_exception_3 = 0;
2349	+	#if !USE_PREFETCH_BUFFER
2350	+	/* gb-- No need for a prefetch buffer, nor exception 3 handling */
2351	+	/* Anyway, Basilisk2 does not use the op_smalltbl_5 table... */
2352	+	for (i = 0; i <= 4; i++) {
2353	+	#else
2354		for (i = 0; i < 6; i++) {
2355	+	#endif
2356		cpu_level = 4 - i;
2357		if (i == 5) {
2358		cpu_level = 0;

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