sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 94 insertions, 0 deletions

diff --git a/src/z80/ralloc.h b/src/z80/ralloc.h
new file mode 100644
index 0000000..88e97d4
--- /dev/null
+++ b/src/z80/ralloc.h
@@ -0,0 +1,94 @@
+/*-------------------------------------------------------------------------
+
+  SDCCralloc.h - header file register allocation
+
+                Written By -  Sandeep Dutta . sandeep.dutta@usa.net (1998)
+
+   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, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+   
+   In other words, you are welcome to use, share and improve this program.
+   You are forbidden to forbid anyone else to use, share and improve
+   what you give them.   Help stamp out software-hoarding!  
+-------------------------------------------------------------------------*/
+#include "SDCCicode.h"
+#include "SDCCBBlock.h"
+#ifndef SDCCRALLOC_H
+#define SDCCRALLOC_H 1
+
+#define DEBUG_FAKE_EXTRA_REGS 	0
+
+#define USE_OLDSALLOC 0 // Change to 1 to use old stack allocator
+
+enum
+{
+  A_IDX = 0,
+  C_IDX,
+  B_IDX,
+  E_IDX,
+  D_IDX,
+  L_IDX,
+  H_IDX,
+  IYL_IDX,
+  IYH_IDX,
+#if DEBUG_FAKE_EXTRA_REGS
+  M_IDX,
+  N_IDX,
+  O_IDX,
+  P_IDX,
+  Q_IDX,
+  R_IDX,
+  S_IDX,
+  T_IDX,
+#endif
+  CND_IDX,
+
+  // These pairs are for internal use in code generation only.
+  IY_IDX,
+  BC_IDX,
+  DE_IDX,
+  HL_IDX
+};
+
+enum
+{
+  REG_PTR = 1,
+  REG_GPR = 2,
+  REG_CND = 4,
+  REG_PAIR = 8
+};
+
+/* definition for the registers */
+typedef struct reg_info
+{
+  short type;                   /* can have value 
+                                   REG_GPR, REG_PTR or REG_CND */
+  short rIdx;                   /* index into register table */
+  char *name;                   /* name */
+  unsigned isFree:1;            /* is currently unassigned  */
+} reg_info;
+
+extern reg_info *regsZ80;
+
+void assignRegisters (eBBlock **, int);
+reg_info *regWithIdx (int);
+
+void z80_assignRegisters (ebbIndex *);
+bitVect *z80_rUmaskForOp (const operand * op);
+
+void z80SpillThis (symbol *);
+iCode *z80_ralloc2_cc(ebbIndex *ebbi);
+
+void Z80RegFix (eBBlock ** ebbs, int count);
+#endif