4.4BSD/usr/src/contrib/gcc-2.3.3/config/merlin.h
/* Definitions of target machine for GNU compiler. MERLIN NS32000 version.
Copyright (C) 1990 Free Software Foundation, Inc.
By Mark Mason (mason@reed.bitnet, pyramid!unify!mason@uunet.uu.net).
This file is part of GNU CC.
GNU CC 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.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Two flags to control how addresses are printed in assembler insns. */
#define SEQUENT_ADDRESS_BUG 1
#define SEQUENT_BASE_REGS
#include "ns32k.h"
/* This is BSD, so it wants DBX format. */
#define DBX_DEBUGGING_INFO
/* Sequent has some changes in the format of DBX symbols. */
#define DBX_NO_XREFS 1
/* Don't split DBX symbols into continuations. */
#define DBX_CONTIN_LENGTH 0
#define TARGET_DEFAULT 1
/* Print subsidiary information on the compiler version in use. */
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (32000, UTek syntax)");
/* These control the C++ compiler somehow. */
#define FASCIST_ASSEMBLER
#define USE_COLLECT
#undef CPP_PREDEFINES
#define CPP_PREDEFINES \
"-Dns32000 -Dns32k -Dns16000 -Dmerlin -Dunix -DUtek -Dbsd"
/* This is how to align the code that follows an unconditional branch.
Don't define it, since it confuses the assembler (we hear). */
#undef ASM_OUTPUT_ALIGN_CODE
/* Assembler pseudo-op for shared data segment. */
#define SHARED_SECTION_ASM_OP ".shdata"
/* %$ means print the prefix for an immediate operand. */
#ifdef UTEK_ASM
#undef PRINT_OPERAND
#define PRINT_OPERAND(FILE, X, CODE) \
{ if (CODE == '$') putc('$', FILE); \
else if (CODE == '?'); \
else if (GET_CODE (X) == CONST_INT) \
fprintf(FILE, "$%d", INTVAL(X)); \
else if (GET_CODE (X) == REG) \
fprintf (FILE, "%s", reg_names[REGNO (X)]); \
else if (GET_CODE (X) == MEM) \
{ \
rtx xfoo; \
xfoo = XEXP (X, 0); \
switch (GET_CODE (xfoo)) \
{ \
case MEM: \
if (GET_CODE (XEXP (xfoo, 0)) == REG) \
if (REGNO (XEXP (xfoo, 0)) == STACK_POINTER_REGNUM) \
fprintf (FILE, "0(0(sp))"); \
else fprintf (FILE, "0(0(%s))", \
reg_names[REGNO (XEXP (xfoo, 0))]); \
else \
{ \
if (GET_CODE (XEXP (xfoo, 0)) == SYMBOL_REF \
|| GET_CODE (XEXP (xfoo, 0)) == CONST) \
{ \
fprintf(FILE, "0("); \
output_address(xfoo); \
fprintf(FILE, "(sb))"); \
} \
else \
{ \
fprintf (FILE, "0("); \
output_address (xfoo); \
putc (')', FILE); \
} \
} \
break; \
case REG: \
fprintf (FILE, "0(%s)", reg_names[REGNO (xfoo)]); \
break; \
case PRE_DEC: \
case POST_INC: \
fprintf (FILE, "tos"); \
break; \
case CONST_INT: \
fprintf (FILE, "$%d", INTVAL (xfoo)); \
break; \
default: \
output_address (xfoo); \
break; \
} \
} \
else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \
if (GET_MODE (X) == DFmode) \
{ union { double d; int i[2]; } u; \
u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
fprintf (FILE, "$0d%.20e", u.d); } \
else { union { double d; int i[2]; } u; \
u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
fprintf (FILE, "$0f%.20e", u.d); } \
else output_addr_const (FILE, X); }
#undef FUNCTION_PROLOGUE
/* This differs from the one in ns32k.h in printing a bitmask
rather than a register list in the enter or save instruction. */
#define FUNCTION_PROLOGUE(FILE, SIZE) \
{ register int regno, g_regs_used = 0; \
int used_regs_buf[8], *bufp = used_regs_buf; \
int used_fregs_buf[8], *fbufp = used_fregs_buf; \
extern char call_used_regs[]; \
MAIN_FUNCTION_PROLOGUE; \
for (regno = 0; regno < 8; regno++) \
if (regs_ever_live[regno] \
&& ! call_used_regs[regno]) \
{ \
*bufp++ = regno; g_regs_used++; \
} \
*bufp = -1; \
for (; regno < 16; regno++) \
if (regs_ever_live[regno] && !call_used_regs[regno]) { \
*fbufp++ = regno; \
} \
*fbufp = -1; \
bufp = used_regs_buf; \
if (frame_pointer_needed) \
fprintf (FILE, "\tenter "); \
else if (g_regs_used) \
fprintf (FILE, "\tsave "); \
if (frame_pointer_needed || g_regs_used) \
{ \
char mask = 0; \
while (*bufp >= 0) \
mask |= 1 << *bufp++; \
fprintf (FILE, "$0x%x", (int) mask & 0xff); \
} \
if (frame_pointer_needed) \
fprintf (FILE, ",%d\n", SIZE); \
else if (g_regs_used) \
fprintf (FILE, "\n"); \
fbufp = used_fregs_buf; \
while (*fbufp >= 0) \
{ \
if ((*fbufp & 1) || (fbufp[0] != fbufp[1] - 1)) \
fprintf (FILE, "\tmovf f%d,tos\n", *fbufp++ - 8); \
else \
{ \
fprintf (FILE, "\tmovl f%d,tos\n", fbufp[0] - 8); \
fbufp += 2; \
} \
} \
}
#undef FUNCTION_EPILOGUE
/* This differs from the one in ns32k.h in printing a bitmask
rather than a register list in the exit or restore instruction. */
#define FUNCTION_EPILOGUE(FILE, SIZE) \
{ register int regno, g_regs_used = 0, f_regs_used = 0; \
int used_regs_buf[8], *bufp = used_regs_buf; \
int used_fregs_buf[8], *fbufp = used_fregs_buf; \
extern char call_used_regs[]; \
*fbufp++ = -2; \
for (regno = 8; regno < 16; regno++) \
if (regs_ever_live[regno] && !call_used_regs[regno]) { \
*fbufp++ = regno; f_regs_used++; \
} \
fbufp--; \
for (regno = 0; regno < 8; regno++) \
if (regs_ever_live[regno] \
&& ! call_used_regs[regno]) \
{ \
*bufp++ = regno; g_regs_used++; \
} \
while (fbufp > used_fregs_buf) \
{ \
if ((*fbufp & 1) && fbufp[0] == fbufp[-1] + 1) \
{ \
fprintf (FILE, "\tmovl tos,f%d\n", fbufp[-1] - 8); \
fbufp -= 2; \
} \
else fprintf (FILE, "\tmovf tos,f%d\n", *fbufp-- - 8); \
} \
if (frame_pointer_needed) \
fprintf (FILE, "\texit "); \
else if (g_regs_used) \
fprintf (FILE, "\trestore "); \
if (g_regs_used || frame_pointer_needed) \
{ \
char mask = 0; \
\
while (bufp > used_regs_buf) \
{ \
/* Utek assembler takes care of reversing this */ \
mask |= 1 << *--bufp; \
} \
fprintf (FILE, "$0x%x\n", (int) mask & 0xff); \
} \
if (current_function_pops_args) \
fprintf (FILE, "\tret %d\n", current_function_pops_args); \
else fprintf (FILE, "\tret 0\n"); }
#endif /* UTEK_ASM */
#undef PRINT_OPERAND_ADDRESS
#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address(FILE, ADDR)