--- /dev/null
+/* Definitions of target machine for GNU compiler.
+ Generic Tektronix 6000 series NS32000 version.
+ See tek6100.h and tek6200.h, which include this file.
+ Copyright (C) 1990 Free Software Foundation, Inc.
+ Created by Snoopy (sopwith.uucp!snoopy).
+ Based on work by Mark Mason (mason@reed.bitnet,
+ pyramid!unify!mason@uunet.uu.net) and Keith Packard.
+
+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. */
+
+/* Generate syntax for the UTek assembler. */
+#ifndef UTEK_ASM
+#define UTEK_ASM
+#endif
+
+/* Two flags to control how addresses are printed in assembler insns. */
+
+/* The way PUT_ABSOLUTE_PREFIX in ns32k.h works, setting it to 0 will
+ * turn it off. Define ABSOLUTE_PREFIX before including ns32k.h.
+ */
+#define ABSOLUTE_PREFIX 0
+#define IMMEDIATE_PREFIX '$'
+
+#include "ns32k.h"
+
+/* Define these after ns32k.c so we will notice if gcc tries to
+ * output external mode addressing. UTek's as and ld do not support
+ * external mode addressing, according to Daryl McDaniel (illian.uucp!darylm).
+ * Hopefully the UTek assembler will complain if gcc feeds it this stuff.
+ * They don't seem to do anything, I think that gcc is not actually
+ * trying to generate external mode operands.
+ */
+#undef PUT_EXTERNAL_PREFIX
+#define PUT_EXTERNAL_PREFIX(arg) fprintf(arg, " Should not be using external mode under UTek. ")
+#define EXTERNAL_PREFIX '%'
+
+/* Used in ns32k.c to control syntax. */
+#define NO_ABSOLUTE_PREFIX_IF_SYMBOLIC
+#define NO_IMMEDIATE_PREFIX_IF_SYMBOLIC
+
+/* Used in ns32k.md to specify syntax of bsr/jsr operand. */
+#define CALL_MEMREF_IMPLICIT
+
+/* #define PC_RELATIVE */ /* Seems to break things. */
+#define BASE_REG_NEEDED /* Seems to fix problem where external mode
+ * syntax was being generated.
+ */
+
+/* ------------ Debugging Support ----------------------------- */
+
+/* The sdb support does not yet work with UTek. Need to teach gcc
+ * how to create sdb type stabs as well as dbx style stabs.
+ */
+#define DBX_DEBUGGING_INFO
+/* #define SDB_DEBUGGING_INFO */
+
+/* Act the same as the UTek complier: -g for dbx, -go for sdb.
+ * This is used in toplev.c.
+ */
+#define PREFERRED_DEBUGGING_TYPE \
+ ((len > 1 && !strncmp(str, "go", len)) ? SDB_DEBUG : DBX_DEBUG )
+
+/* 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
+
+/* These control the C++ compiler somehow. */
+#define FASCIST_ASSEMBLER
+#define USE_COLLECT
+
+/* Print subsidiary information on the compiler version in use. */
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (ns32k, UTek syntax)");
+
+/* The tek6100.h and tek6200.h files add stratos or merlin respectively. */
+
+#define CPP_PREDEFINES_Tek6000 \
+ "-Dns16000 -Dns32000 -Dns32k -Dns32016 -DUTek -DUTEK -Dbsd -DBSD"
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "CPP_PREDEFINES_Tek6000"
+
+/* 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"
+
+#ifdef UTEK_ASM
+#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"); }
+
+/* UTek assembler needs "ret $0", not "ret 0". */
+#undef TRANSFER_FROM_TRAMPOLINE
+#define TRANSFER_FROM_TRAMPOLINE \
+void \
+__transfer_from_trampoline () \
+{ \
+ asm ("___trampoline:"); \
+ asm ("movd 16(r2),tos"); \
+ asm ("movd 12(r2),r2"); \
+ asm ("ret $0"); \
+}
+
+#endif /* UTEK_ASM */
+
+#undef PRINT_OPERAND_ADDRESS
+#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address(FILE, ADDR)
+
+/* The UTek library supplies bcopy() and friends, not memcpy(). */
+#ifdef TARGET_MEM_FUNCTIONS
+#undef TARGET_MEM_FUNCTIONS
+#endif
projects / platform / upstream / linaro-gcc.git / commitdiff