* remote-sim.c (simulator_command): Add comment about dealing with

	NULL or empty args.
start-sanitize-tic80
	* Makefile.in (tic80-tdep.o): Add target.
	* configure.tgt: Add tic80 case.
	* tic80-tdep.c: New file.
	* config/tic80/{tic80.mt, tm-tic80.h}: New files.
end-sanitize-tic80

2 files changed, 187 insertions, 0 deletions

diff --git a/gdb/config/tic80/tic80.mt b/gdb/config/tic80/tic80.mt
new file mode 100644
index 0000000..ca4ad46
--- /dev/null
+++ b/gdb/config/tic80/tic80.mt
@@ -0,0 +1,5 @@
+# Target: TI TMS320C80 (MVP) processor
+TDEPFILES= tic80-tdep.o
+TM_FILE= tm-tic80.h
+SIM_OBS = remote-sim.o
+SIM = ../sim/tic80/libsim.a -lm
diff --git a/gdb/config/tic80/tm-tic80.h b/gdb/config/tic80/tm-tic80.h
new file mode 100644
index 0000000..e2b10ad
--- /dev/null
+++ b/gdb/config/tic80/tm-tic80.h
@@ -0,0 +1,182 @@
+/* Parameters for execution on a TI TMS320C80 (MVP) processor.
+   Copyright 1997
+   Free Software Foundation, Inc. 
+
+This file is part of GDB.
+
+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 of the License, 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef TM_TIC80_H
+#define TM_TIC80_H
+
+#ifdef __STDC__		/* Forward declare structs used in prototypes */
+struct frame_info;
+struct type;
+struct value;
+struct symbol;
+struct frame_saved_regs;
+#endif
+
+#define TARGET_BYTE_ORDER LITTLE_ENDIAN
+
+#define NUM_REGS 35
+
+#define REGISTER_NAMES \
+{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
+  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
+  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
+  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \
+  "pc", "a0", "a1" \
+}
+
+/* Various dedicated register numbers */
+
+#define SP_REGNUM 1		/* Contains address of top of stack */
+#define FP_REGNUM 31		/* Contains address of executing stack frame */
+#define PC_REGNUM 32		/* Contains program counter (FIXME?) */
+#define A0_REGNUM 33		/* Accumulator register 0 */
+#define A1_REGNUM 34		/* Accumulator register 1 */
+
+/* Total amount of space needed to store our copies of the machine's
+   register state, the array `registers'.  */
+
+#define REGISTER_BYTES (((NUM_REGS - 2) * 4) + (2 * 8))
+
+/* Index within `registers' of the first byte of the space for
+   register N.  */
+
+#define REGISTER_BYTE(N) \
+   (((N) > A0_REGNUM) ? (((N) - A0_REGNUM) * 8 + A0_REGNUM * 4) : ((N) * 4))
+
+#define REGISTER_SIZE 4
+
+/* All regs are 4 bytes.  */
+
+#define REGISTER_RAW_SIZE(N) (4)
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+
+#define MAX_REGISTER_RAW_SIZE 4
+
+/* All regs are 4 bytes.  */
+
+#define REGISTER_VIRTUAL_SIZE(N) (4)
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+
+#define MAX_REGISTER_VIRTUAL_SIZE (4)
+
+/* Return the GDB type object for the "standard" data type
+   of data in register N.  */
+
+#define REGISTER_VIRTUAL_TYPE(N) /* FIXME? */ \
+	(((N) == A0_REGNUM || (N) == A1_REGNUM) ? builtin_type_float : builtin_type_int)
+
+/* Offset from address of function to start of its code.
+   Zero on most machines.  */
+
+#define FUNCTION_START_OFFSET 0
+
+/* Stack grows downward.  */
+
+#define INNER_THAN 		<
+
+/* Sequence of bytes for breakpoint instruction.
+   This is padded out to the size of a machine word. */
+
+#define BREAKPOINT 		{0x0, 0x0, 0x0, 0x0}	/* FIXME! */
+
+/* Amount PC must be decremented by after a breakpoint.
+   This is often the number of bytes in BREAKPOINT
+   but not always.  */
+
+#define DECR_PC_AFTER_BREAK	0			/* FIXME! */
+
+/* Push an empty stack frame, to record the current PC, etc.  */
+
+#define PUSH_DUMMY_FRAME 	tic80_push_dummy_frame()
+extern void tic80_push_dummy_frame PARAMS ((void));
+
+/* Discard from the stack the innermost frame, restoring all registers.  */
+
+#define POP_FRAME		tic80_pop_frame()
+extern void tic80_pop_frame PARAMS ((void));
+
+/* Return number of bytes at start of arglist that are not really args.  */
+
+#define FRAME_ARGS_SKIP 0
+
+/* Set VAL to the number of args passed to frame described by FI.
+   Can set VAL to -1, meaning no way to tell.  */
+/* We can't tell how many args there are */
+
+#define FRAME_NUM_ARGS(val,fi) (val = -1)
+
+#define FRAME_ARGS_SKIP 0
+#define FRAME_ARGS_ADDRESS(fi)   (fi)->frame
+#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame
+
+/* Put here the code to store, into a struct frame_saved_regs,
+   the addresses of the saved registers of frame described by FRAME_INFO.
+   This includes special registers such as pc and fp saved in special
+   ways in the stack frame.  sp is even more special:
+   the address we return for it IS the sp for the next frame.  */
+
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs)	    \
+   tic80_frame_find_saved_regs(frame_info, &(frame_saved_regs))
+extern void tic80_frame_find_saved_regs PARAMS ((struct frame_info *, struct frame_saved_regs *));
+
+/* Advance PC across any function entry prologue instructions
+   to reach some "real" code.  */
+
+#define SKIP_PROLOGUE(pc)	{ (pc) = tic80_skip_prologue (pc); }
+extern CORE_ADDR tic80_skip_prologue PARAMS ((CORE_ADDR pc));
+
+/* Immediately after a function call, return the saved pc.
+   Can't always go through the frames for this because on some machines
+   the new frame is not set up until the new function executes
+   some instructions.  */
+
+#define SAVED_PC_AFTER_CALL(frame)	tic80_saved_pc_after_call(frame)
+extern CORE_ADDR tic80_saved_pc_after_call PARAMS ((struct frame_info *));
+
+/* Describe the pointer in each stack frame to the previous stack frame
+   (its caller).  */
+
+/* FRAME_CHAIN takes a frame's nominal address
+   and produces the frame's chain-pointer. */
+
+#define FRAME_CHAIN(thisframe) (CORE_ADDR) tic80_frame_chain (thisframe)
+extern CORE_ADDR tic80_frame_chain PARAMS ((struct frame_info *));
+
+#define FRAME_SAVED_PC(FRAME)	tic80_frame_saved_pc (FRAME)
+extern CORE_ADDR tic80_frame_saved_pc PARAMS ((struct frame_info *));
+
+/* Extract from an array REGBUF containing the (raw) register state
+   a function return value of type TYPE, and copy that, in virtual format,
+   into VALBUF.  */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+  tic80_extract_return_value((TYPE), (REGBUF), (VALBUF))
+extern void tic80_extract_return_value PARAMS ((struct type *, char *, char *));
+
+/* Write into appropriate registers a function return value
+   of type TYPE, given in virtual format.  */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+  tic80_store_return_value((TYPE), (VALBUF))
+extern void tic80_store_return_value PARAMS ((struct type *, char *));
+
+#endif	/* TM_TIC80_H */