/* src/vm/jit/powerpc/darwin/md-abi.h - defines for PowerPC Darwin ABI
- Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
- R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
- C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
- Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
+ C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
+ E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
+ J. Wenninger, Institut f. Computersprachen - TU Wien
This file is part of CACAO.
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.
-
- Contact: cacao@complang.tuwien.ac.at
-
- Authors: Christian Thalinger
-
- Changes:
-
- $Id: md-abi.h 2539 2005-05-31 15:55:54Z twisti $
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
*/
/* vector has been fetched */
#define REG_ITMP1 11 /* temporary register */
#define REG_ITMP2 12 /* temporary register and method pointer */
-#define REG_ITMP3 0 /* temporary register */
+#define REG_ITMP3 16 /* temporary register */
#define REG_ITMP1_XPTR 11 /* exception pointer = temporary register 1 */
#define REG_ITMP2_XPC 12 /* exception pc = temporary register 2 */
#define REG_SP 1 /* stack pointer */
#define REG_ZERO 0 /* almost always zero: only in address calc. */
+#define REG_A0 3 /* define some argument registers */
+#define REG_A1 4
+#define REG_A2 5
+#define REG_A3 6
+
/* floating point registers */
#define REG_FRESULT 1 /* to deliver floating point method results */
#define REG_IFTMP 0 /* temporary integer and floating point register */
+#define REG_FA0 1 /* define some argument registers */
+#define REG_FA1 2
+
#define INT_REG_CNT 32 /* number of integer registers */
#define INT_SAV_CNT 10 /* number of int callee saved registers */
#define INT_ARG_CNT 8 /* number of int argument registers */
#define INT_TMP_CNT 8 /* number of integer temporary registers */
-#define INT_RES_CNT 3 /* number of integer reserved registers */
+#define INT_RES_CNT 6 /* number of integer reserved registers */
#define FLT_REG_CNT 32 /* number of float registers */
#define FLT_SAV_CNT 10 /* number of float callee saved registers */
#define FLT_TMP_CNT 6 /* number of float temporary registers */
#define FLT_RES_CNT 3 /* number of float reserved registers */
-#define TRACE_ARGS_NUM 8
+#define TRACE_ARGS_NUM 4
-/* ABI defines ****************************************************************/
+/* packed register defines ****************************************************/
-#define LA_SIZE 24 /* linkage area size */
-#define LA_SIZE_ALIGNED 32 /* linkage area size aligned to 16-byte */
-#define LA_WORD_SIZE 6 /* linkage area size in words: 6 * 4 = 24 */
+#define REG_RESULT_PACKED PACK_REGS(REG_RESULT2, REG_RESULT)
-#define LA_LR_OFFSET 8 /* link register offset in linkage area */
+#define REG_A0_A1_PACKED PACK_REGS(REG_A1, REG_A0)
+#define REG_A2_A3_PACKED PACK_REGS(REG_A3, REG_A2)
+
+#define REG_ITMP12_PACKED PACK_REGS(REG_ITMP2, REG_ITMP1)
+#define REG_ITMP23_PACKED PACK_REGS(REG_ITMP3, REG_ITMP2)
-/* #define ALIGN_FRAME_SIZE(sp) (sp) */
+/* ABI defines ****************************************************************/
+
+#define LA_SIZE 24 /* linkage area size */
+#define LA_SIZE_ALIGNED 32 /* linkage area size aligned to 16-byte */
+#define LA_SIZE_IN_POINTERS LA_SIZE / SIZEOF_VOID_P
-/* SET_ARG_STACKSLOTS **********************************************************
-
-Macro for stack.c to set Argument Stackslots
-
-Sets the first call_argcount stackslots of curstack to varkind ARGVAR, if
-they to not have the SAVEDVAR flag set. According to the calling
-conventions these stackslots are assigned argument registers or memory
-locations
-
---- in
-i,call_argcount: Number of arguments for this method
-curstack: instack of the method invokation
-call_returntype: return type
-
---- uses
-i, copy
-
---- out
-copy: Points to first stackslot after the parameters
-rd->argintreguse: max. number of used integer argument register so far
-rd->argfltreguse: max. number of used float argument register so far
-rd->ifmemuse: max. number of stackslots used for spilling parameters
- so far
-
-*******************************************************************************/
-
-#define SET_ARG_STACKSLOTS \
- do { \
- s4 iarg = 0; \
- s4 farg = 0; \
- s4 iarg_max = 0; \
- s4 stacksize; \
- \
- stacksize = 6; \
- \
- copy = curstack; \
- for (;i > 0; i--) { \
- stacksize += (IS_2_WORD_TYPE(copy->type)) ? 2 : 1; \
- if (IS_FLT_DBL_TYPE(copy->type)) \
- farg++; \
- copy = copy->prev; \
- } \
- if (rd->argfltreguse < farg) \
- rd->argfltreguse = farg; \
- \
- /* REG_FRESULT == FLOAT ARGUMENT REGISTER 0 */ \
- if (IS_FLT_DBL_TYPE(call_returntype)) \
- if (rd->argfltreguse < 1) \
- rd->argfltreguse = 1; \
- \
- if (stacksize > rd->ifmemuse) \
- rd->ifmemuse = stacksize; \
- \
- i = call_argcount; \
- copy = curstack; \
- while (--i >= 0) { \
- stacksize -= (IS_2_WORD_TYPE(copy->type)) ? 2 : 1; \
- if (IS_FLT_DBL_TYPE(copy->type)) { \
- farg--; \
- if (!(copy->flags & SAVEDVAR)) { \
- copy->varnum = i; \
- copy->varkind = ARGVAR; \
- if (farg < rd->fltreg_argnum) { \
- copy->flags = 0; \
- copy->regoff = rd->argfltregs[farg]; \
- } else { \
- copy->flags = INMEMORY; \
- copy->regoff = stacksize; \
- } \
- } \
- } else { \
- iarg = stacksize - 6; \
- if (iarg+(IS_2_WORD_TYPE(copy->type) ? 2 : 1) > iarg_max) \
- iarg_max = iarg+(IS_2_WORD_TYPE(copy->type) ? 2 : 1); \
- \
- if (!(copy->flags & SAVEDVAR)) { \
- copy->varnum = i; \
- copy->varkind = ARGVAR; \
- if ((iarg+((IS_2_WORD_TYPE(copy->type)) ? 1 : 0)) < rd->intreg_argnum) { \
- copy->flags = 0; \
- copy->regoff = rd->argintregs[iarg]; \
- } else { \
- copy->flags = INMEMORY; \
- copy->regoff = stacksize; \
- } \
- } \
- } \
- copy = copy->prev; \
- } \
- if (rd->argintreguse < iarg_max) \
- rd->argintreguse = iarg_max; \
- if (IS_INT_LNG_TYPE(call_returntype)) { \
- /* REG_RESULT == INTEGER ARGUMENT REGISTER 0 */ \
- /* REG_RESULT2 == INTEGER ARGUMENT REGISTER 1 */ \
- if (IS_2_WORD_TYPE(call_returntype)) { \
- if (rd->argintreguse < 2) \
- rd->argintreguse = 2; \
- } else { \
- if (rd->argintreguse < 1) \
- rd->argintreguse = 1; \
- } \
- } \
- } while (0)
+#define LA_LR_OFFSET 8 /* link register offset in linkage area */
+/* #define ALIGN_FRAME_SIZE(sp) (sp) */
#endif /* _MD_ABI_H */
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