new PowerPC vm

Patch by Przemysław Iskra (#3796)

code/qcommon/vm_powerpc_asm.h

@@ -0,0 +1,156 @@
+/*
+===========================================================================
+Copyright (C) 2008 Przemyslaw Iskra <sparky@pld-linux.org>
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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.
+
+Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#ifndef VM_POWERPC_ASM_H
+#define VM_POWERPC_ASM_H
+
+/*
+ * Register information according to:
+ * http://refspecs.freestandards.org/elf/elfspec_ppc.pdf
+ */
+
+#define r0	0	// volatile
+#define r1	1	// caller safe ( stack pointer )
+#define r2	2	// reserved
+#define r3	3	// callee safe
+#define r4	4	// callee safe
+#define r5	5	// callee safe
+#define r6	6	// callee safe
+#define r7	7	// callee safe
+#define r8	8	// callee safe
+#define r9	9	// callee safe
+#define r10	10	// callee safe
+#define r11	11	// volatile
+#define r12	12	// volatile
+#define r13	13	// reserved ( small data area )
+#define r14	14	// caller safe
+#define r15	15	// caller safe
+#define r16	16	// caller safe
+#define r17	17	// caller safe
+#define r18	18	// caller safe
+#define r19	19	// caller safe
+#define r20	20	// caller safe
+#define r21	21	// caller safe
+#define r22	22	// caller safe
+#define r23	23	// caller safe
+#define r24	24	// caller safe
+#define r25	25	// caller safe
+#define r26	26	// caller safe
+#define r27	27	// caller safe
+#define r28	28	// caller safe
+#define r29	29	// caller safe
+#define r30	30	// caller safe
+#define r31	31	// caller safe ( environment pointers )
+
+#define f0	0	// callee safe
+#define f1	1	// callee safe
+#define f2	2	// callee safe
+#define f3	3	// callee safe
+#define f4	4	// callee safe
+#define f5	5	// callee safe
+#define f6	6	// callee safe
+#define f7	7	// callee safe
+#define f8	8	// callee safe
+#define f9	9	// callee safe
+#define f10	10	// callee safe
+#define f11	11	// callee safe
+#define f12	12	// callee safe
+#define f13	13	// callee safe
+#define f14	14	// caller safe
+#define f15	15	// caller safe
+#define f16	16	// caller safe
+#define f17	17	// caller safe
+#define f18	18	// caller safe
+#define f19	19	// caller safe
+#define f20	20	// caller safe
+#define f21	21	// caller safe
+#define f22	22	// caller safe
+#define f23	23	// caller safe
+#define f24	24	// caller safe
+#define f25	25	// caller safe
+#define f26	26	// caller safe
+#define f27	27	// caller safe
+#define f28	28	// caller safe
+#define f29	29	// caller safe
+#define f30	30	// caller safe
+#define f31	31	// caller safe
+
+#define cr0	0	// volatile
+#define cr1	1	// volatile
+#define cr2	2	// caller safe
+#define cr3	3	// caller safe
+#define cr4	4	// caller safe
+#define cr5	5	// volatile
+#define cr6	6	// volatile
+#define cr7	7	// volatile
+
+#define lt	0
+#define gt	1
+#define eq	2
+#define so	3
+
+// branch bo field values
+#define branchLikely	1
+#define branchFalse	4
+#define branchTrue	12
+#define branchAlways	20
+
+// branch extensions (change branch type)
+#define branchExtLink	0x0001
+
+
+/*
+ * This list must match exactly the powerpc_opcodes list from vm_powerpc_asm.c
+ * If you're changing the original list remember to regenerate this one. You
+ * may do so using this perl script:
+   perl -p -e 'BEGIN{%t=("-"=>m=>"+"=>p=>"."=>d=>);$l=""}$o=0 if/^}/;
+	if($o && s/^{ "(.*?)([\.+-])?".+/i\U$1\E$t{$2}/s){$_.="_" while$l{$_};
+	$l{$_}=1;if(length $l.$_ > 70){$s=$_;$_="\t$l\n";$l="$s,"}else
+	{$l.=" $_,";$_=undef}}else{$o=1 if/powerpc_opcodes.*=/;$_=undef};
+	END{print "\t$l\n"}' < vm_powerpc_asm.c
+ */
+
+typedef enum powerpc_iname {
+	iCMPLWI, iCMPWI, iCMPW, iCMPLW, iFCMPU, iLI, iLIS, iADDI, iADDIS,
+	iBLTm, iBC, iBCL, iB, iBL, iBLR, iBCTR, iBCTRL, iRLWINM, iNOP, iORI,
+	iXORIS, iLDX, iLWZX, iSLW, iAND, iSUB, iLBZX, iNEG, iNOT, iSTWX, iSTBX,
+	iMULLW, iADD, iLHZX, iXOR, iMFLR, iSTHX, iMR, iOR, iDIVWU, iMTLR,
+	iMTCTR, iDIVW, iLFSX, iSRW, iSTFSX, iSRAW, iEXTSH, iEXTSB, iLWZ, iLBZ,
+	iSTW, iSTWU, iSTB, iLHZ, iSTH, iLFS, iLFD, iSTFS, iSTFD, iLD, iFDIVS,
+	iFSUBS, iFADDS, iFMULS, iSTD, iSTDU, iFRSP, iFCTIWZ, iFSUB, iFNEG,
+} powerpc_iname_t;
+
+#include <stdint.h>
+
+typedef uint32_t ppc_instruction_t;
+
+extern ppc_instruction_t
+asm_instruction( powerpc_iname_t, const int, const long int * );
+
+#define IN( inst, args... ) \
+({\
+	const long int argv[] = { args };\
+	const int argc = sizeof( argv ) / sizeof( argv[0] ); \
+	asm_instruction( inst, argc, argv );\
+})
+
+#endif