1993-03-23 01:19:58 +00:00
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/* Target machine description for generic Motorola 88000, for GDB.
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Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1993
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* g++ support is not yet included. */
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1993-09-22 00:41:55 +00:00
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/* Define the bit, byte, and word ordering of the machine. */
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1993-03-23 01:19:58 +00:00
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#define TARGET_BYTE_ORDER BIG_ENDIAN
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/* We cache information about saved registers in the frame structure,
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to save us from having to re-scan function prologues every time
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a register in a non-current frame is accessed. */
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#define EXTRA_FRAME_INFO \
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struct frame_saved_regs *fsr; \
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CORE_ADDR locals_pointer; \
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CORE_ADDR args_pointer;
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/* Zero the frame_saved_regs pointer when the frame is initialized,
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so that FRAME_FIND_SAVED_REGS () will know to allocate and
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initialize a frame_saved_regs struct the first time it is called.
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Set the arg_pointer to -1, which is not valid; 0 and other values
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indicate real, cached values. */
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#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
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init_extra_frame_info (fromleaf, fi)
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extern void init_extra_frame_info ();
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#define IEEE_FLOAT
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/* Offset from address of function to start of its code.
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Zero on most machines. */
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#define FUNCTION_START_OFFSET 0
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/* Advance PC across any function entry prologue instructions
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to reach some "real" code. */
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#define SKIP_PROLOGUE(frompc) \
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1993-08-13 21:45:31 +00:00
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{ (frompc) = skip_prologue (frompc); }
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1993-03-23 01:19:58 +00:00
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extern CORE_ADDR skip_prologue ();
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/* The m88k kernel aligns all instructions on 4-byte boundaries. The
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kernel also uses the least significant two bits for its own hocus
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pocus. When gdb receives an address from the kernel, it needs to
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preserve those right-most two bits, but gdb also needs to be careful
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to realize that those two bits are not really a part of the address
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of an instruction. Shrug. */
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#define ADDR_BITS_REMOVE(addr) ((addr) & ~3)
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/* Immediately after a function call, return the saved pc.
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Can't always go through the frames for this because on some machines
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the new frame is not set up until the new function executes
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some instructions. */
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#define SAVED_PC_AFTER_CALL(frame) \
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(ADDR_BITS_REMOVE (read_register (SRP_REGNUM)))
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/* Stack grows downward. */
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#define INNER_THAN <
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/* Sequence of bytes for breakpoint instruction. */
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/* instruction 0xF000D1FF is 'tb0 0,r0,511'
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If Bit bit 0 of r0 is clear (always true),
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initiate exception processing (trap).
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*/
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#define BREAKPOINT {0xF0, 0x00, 0xD1, 0xFF}
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/* Amount PC must be decremented by after a breakpoint.
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This is often the number of bytes in BREAKPOINT
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but not always. */
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#define DECR_PC_AFTER_BREAK 0
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/* Nonzero if instruction at PC is a return instruction. */
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/* 'jmp r1' or 'jmp.n r1' is used to return from a subroutine. */
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#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 2) == 0xF800)
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* valops.c (call_function_by_hand, push_word), defs.h (push_word),
convex-xdep.c, m88k-nat.c, i386m3-nat.c, mips-tdep.c, mipsm3-nat.c,
ns32km3-nat.c, remote-bug.c, m88k-tdep.c, remote-hms.c, remote-mips.c,
config/gould/tm-np1.h, hppa-tdep.c (hppa_fix_call_dummy), remote-vx.c:
Use REGISTER_SIZE, unsigned LONGEST, and
{store,extract}_unsigned_integer, instead of sizeof
(REGISTER_TYPE) and REGISTER_TYPE.
* All tm.h files: Change REGISTER_TYPE to REGISTER_SIZE.
* hppa-tdep.c (pa_print_fp_reg): Remove unused variable val.
* Makefile.in (ALLDEPFILES): Remove i386ly-nat.c and m68kly-nat.c.
Add lynx-nat.c.
1993-12-26 18:10:22 +00:00
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/* Say how long (ordinary) registers are. This is a piece of bogosity
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used in push_word and a few other places; REGISTER_RAW_SIZE is the
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real way to know how big a register is. */
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1993-03-23 01:19:58 +00:00
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* valops.c (call_function_by_hand, push_word), defs.h (push_word),
convex-xdep.c, m88k-nat.c, i386m3-nat.c, mips-tdep.c, mipsm3-nat.c,
ns32km3-nat.c, remote-bug.c, m88k-tdep.c, remote-hms.c, remote-mips.c,
config/gould/tm-np1.h, hppa-tdep.c (hppa_fix_call_dummy), remote-vx.c:
Use REGISTER_SIZE, unsigned LONGEST, and
{store,extract}_unsigned_integer, instead of sizeof
(REGISTER_TYPE) and REGISTER_TYPE.
* All tm.h files: Change REGISTER_TYPE to REGISTER_SIZE.
* hppa-tdep.c (pa_print_fp_reg): Remove unused variable val.
* Makefile.in (ALLDEPFILES): Remove i386ly-nat.c and m68kly-nat.c.
Add lynx-nat.c.
1993-12-26 18:10:22 +00:00
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#define REGISTER_SIZE 4
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1993-03-23 01:19:58 +00:00
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/* Number of machine registers */
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1993-09-22 00:41:55 +00:00
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#define GP_REGS (38)
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#define FP_REGS (32)
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#define NUM_REGS (GP_REGS + FP_REGS)
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1993-03-23 01:19:58 +00:00
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/* Initializer for an array of names of registers.
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There should be NUM_REGS strings in this initializer. */
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#define REGISTER_NAMES {\
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1993-09-22 00:41:55 +00:00
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"r0",\
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"r1",\
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"r2",\
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"r3",\
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"r4",\
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"r5",\
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"r6",\
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"r7",\
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"r8",\
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"r9",\
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"r10",\
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"r11",\
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"r12",\
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"r13",\
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"r14",\
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"r15",\
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"r16",\
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"r17",\
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"r18",\
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"r19",\
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"r20",\
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"r21",\
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"r22",\
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"r23",\
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"r24",\
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"r25",\
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"r26",\
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"r27",\
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"r28",\
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"r29",\
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"r30",\
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"r31",\
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"psr",\
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"fpsr",\
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"fpcr",\
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"sxip",\
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"snip",\
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"sfip",\
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"x0",\
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"x1",\
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"x2",\
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"x3",\
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"x4",\
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"x5",\
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"x6",\
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"x7",\
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"x8",\
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"x9",\
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"x10",\
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"x11",\
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"x12",\
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"x13",\
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"x14",\
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"x15",\
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"x16",\
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"x17",\
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"x18",\
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"x19",\
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"x20",\
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"x21",\
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"x22",\
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"x23",\
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"x24",\
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"x25",\
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"x26",\
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"x27",\
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"x28",\
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"x29",\
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"x30",\
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"x31",\
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"vbr",\
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"dmt0",\
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"dmd0",\
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"dma0",\
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"dmt1",\
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"dmd1",\
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"dma1",\
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"dmt2",\
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"dmd2",\
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"dma2",\
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"sr0",\
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"sr1",\
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"sr2",\
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"sr3",\
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"fpecr",\
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"fphs1",\
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"fpls1",\
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"fphs2",\
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"fpls2",\
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"fppt",\
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"fprh",\
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"fprl",\
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"fpit",\
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"fpsr",\
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"fpcr",\
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}
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1993-03-23 01:19:58 +00:00
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/* Register numbers of various important registers.
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Note that some of these values are "real" register numbers,
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and correspond to the general registers of the machine,
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and some are "phony" register numbers which are too large
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to be actual register numbers as far as the user is concerned
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but do serve to get the desired values when passed to read_register. */
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1993-09-22 00:41:55 +00:00
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#define R0_REGNUM 0 /* Contains the constant zero */
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1993-03-23 01:19:58 +00:00
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#define SRP_REGNUM 1 /* Contains subroutine return pointer */
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#define RV_REGNUM 2 /* Contains simple return values */
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#define SRA_REGNUM 12 /* Contains address of struct return values */
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#define SP_REGNUM 31 /* Contains address of top of stack */
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1993-09-22 00:41:55 +00:00
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/* Instruction pointer notes...
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On the m88100:
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* cr04 = sxip. On exception, contains the excepting pc (probably).
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On rte, is ignored.
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* cr05 = snip. On exception, contains the NPC (next pc). On rte,
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pc is loaded from here.
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* cr06 = sfip. On exception, contains the NNPC (next next pc). On
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rte, the NPC is loaded from here.
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* lower two bits of each are flag bits. Bit 1 is V means address
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is valid. If address is not valid, bit 0 is ignored. Otherwise,
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bit 0 is E and asks for an exception to be taken if this
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instruction is executed.
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On the m88110:
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* cr04 = exip. On exception, contains the address of the excepting
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pc (always). On rte, pc is loaded from here. Bit 0, aka the D
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bit, is a flag saying that the offending instruction was in a
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branch delay slot. If set, then cr05 contains the NPC.
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* cr05 = enip. On exception, if the instruction pointed to by cr04
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was in a delay slot as indicated by the bit 0 of cr04, aka the D
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bit, the cr05 contains the NPC. Otherwise ignored.
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* cr06 is invalid */
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1994-07-17 21:08:42 +00:00
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/* Note that the Harris Unix kernels emulate the m88100's behavior on
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the m88110. */
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1993-09-22 00:41:55 +00:00
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#define SXIP_REGNUM 35 /* On m88100, Contains Shadow Execute
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Instruction Pointer. */
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#define SNIP_REGNUM 36 /* On m88100, Contains Shadow Next
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Instruction Pointer. */
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#define SFIP_REGNUM 37 /* On m88100, Contains Shadow Fetched
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Intruction pointer. */
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#define EXIP_REGNUM 35 /* On m88110, Contains Exception
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Executing Instruction Pointer. */
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#define ENIP_REGNUM 36 /* On m88110, Contains the Exception
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Next Instruction Pointer. */
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1993-03-23 01:19:58 +00:00
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#define PC_REGNUM SXIP_REGNUM /* Program Counter */
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#define NPC_REGNUM SNIP_REGNUM /* Next Program Counter */
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1993-09-22 00:41:55 +00:00
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#define NNPC_REGNUM SFIP_REGNUM /* Next Next Program Counter */
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1993-03-23 01:19:58 +00:00
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#define PSR_REGNUM 32 /* Processor Status Register */
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#define FPSR_REGNUM 33 /* Floating Point Status Register */
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#define FPCR_REGNUM 34 /* Floating Point Control Register */
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1993-09-22 00:41:55 +00:00
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#define XFP_REGNUM 38 /* First Extended Float Register */
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#define X0_REGNUM XFP_REGNUM /* Which also contains the constant zero */
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1993-03-23 01:19:58 +00:00
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1993-08-17 22:21:50 +00:00
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/* This is rather a confusing lie. Our m88k port using a stack pointer value
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for the frame address. Hence, the frame address and the frame pointer are
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only indirectly related. The value of this macro is the register number
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fetched by the machine "independent" portions of gdb when they want to know
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about a frame address. Thus, we lie here and claim that FP_REGNUM is
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SP_REGNUM. */
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#define FP_REGNUM SP_REGNUM /* Reg fetched to locate frame when pgm stops */
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#define ACTUAL_FP_REGNUM 30
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1993-03-23 01:19:58 +00:00
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/* PSR status bit definitions. */
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#define PSR_MODE 0x80000000
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#define PSR_BYTE_ORDER 0x40000000
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#define PSR_SERIAL_MODE 0x20000000
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#define PSR_CARRY 0x10000000
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#define PSR_SFU_DISABLE 0x000003f0
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#define PSR_SFU1_DISABLE 0x00000008
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#define PSR_MXM 0x00000004
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#define PSR_IND 0x00000002
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#define PSR_SFRZ 0x00000001
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1993-09-22 00:41:55 +00:00
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/* The following two comments come from the days prior to the m88110
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port. The m88110 handles the instruction pointers differently. I
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do not know what any m88110 kernels do as the m88110 port I'm
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working with is for an embedded system. rich@cygnus.com
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13-sept-93. */
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/* BCS requires that the SXIP_REGNUM (or PC_REGNUM) contain the
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address of the next instr to be executed when a breakpoint occurs.
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Because the kernel gets the next instr (SNIP_REGNUM), the instr in
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SNIP needs to be put back into SFIP, and the instr in SXIP should
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be shifted to SNIP */
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/* Are you sitting down? It turns out that the 88K BCS (binary
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compatibility standard) folks originally felt that the debugger
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should be responsible for backing up the IPs, not the kernel (as is
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usually done). Well, they have reversed their decision, and in
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future releases our kernel will be handling the backing up of the
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IPs. So, eventually, we won't need to do the SHIFT_INST_REGS
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stuff. But, for now, since there are 88K systems out there that do
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need the debugger to do the IP shifting, and since there will be
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systems where the kernel does the shifting, the code is a little
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more complex than perhaps it needs to be (we still go inside
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SHIFT_INST_REGS, and if the shifting hasn't occurred then gdb goes
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|
ahead and shifts). */
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|
extern int target_is_m88110;
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|
#define SHIFT_INST_REGS() \
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if (!target_is_m88110) \
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|
{ \
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CORE_ADDR pc = read_register (PC_REGNUM); \
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CORE_ADDR npc = read_register (NPC_REGNUM); \
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if (pc != npc) \
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{ \
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write_register (NNPC_REGNUM, npc); \
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write_register (NPC_REGNUM, pc); \
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|
} \
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|
}
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/* Storing the following registers is a no-op. */
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|
#define CANNOT_STORE_REGISTER(regno) (((regno) == R0_REGNUM) \
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|| ((regno) == X0_REGNUM))
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1993-03-23 01:19:58 +00:00
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1993-09-22 00:41:55 +00:00
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|
/* Number of bytes of storage in the actual machine representation
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|
for register N. On the m88k, the general purpose registers are 4
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|
bytes and the 88110 extended registers are 10 bytes. */
|
1993-03-23 01:19:58 +00:00
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1993-09-22 00:41:55 +00:00
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|
#define REGISTER_RAW_SIZE(N) ((N) < XFP_REGNUM ? 4 : 10)
|
1993-03-23 01:19:58 +00:00
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1993-09-22 00:41:55 +00:00
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|
/* Total amount of space needed to store our copies of the machine's
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|
|
register state, the array `registers'. */
|
1993-03-23 01:19:58 +00:00
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|
1993-09-22 00:41:55 +00:00
|
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|
|
#define REGISTER_BYTES ((GP_REGS * REGISTER_RAW_SIZE(0)) \
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|
|
+ (FP_REGS * REGISTER_RAW_SIZE(XFP_REGNUM)))
|
1993-03-23 01:19:58 +00:00
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|
1993-09-22 00:41:55 +00:00
|
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|
/* Index within `registers' of the first byte of the space for
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|
register N. */
|
1993-03-23 01:19:58 +00:00
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|
1993-09-22 00:41:55 +00:00
|
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|
|
#define REGISTER_BYTE(N) (((N) * REGISTER_RAW_SIZE(0)) \
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|
+ ((N) >= XFP_REGNUM \
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|
|
? (((N) - XFP_REGNUM) \
|
|
|
|
|
* REGISTER_RAW_SIZE(XFP_REGNUM)) \
|
|
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|
|
: 0))
|
1993-03-23 01:19:58 +00:00
|
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|
1993-09-22 00:41:55 +00:00
|
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|
|
/* Number of bytes of storage in the program's representation for
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|
|
|
|
register N. On the m88k, all registers are 4 bytes excepting the
|
|
|
|
|
m88110 extended registers which are 8 byte doubles. */
|
1993-03-23 01:19:58 +00:00
|
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|
1993-09-22 00:41:55 +00:00
|
|
|
|
#define REGISTER_VIRTUAL_SIZE(N) ((N) < XFP_REGNUM ? 4 : 8)
|
1993-03-23 01:19:58 +00:00
|
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|
1993-09-22 00:41:55 +00:00
|
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|
|
/* Largest value REGISTER_RAW_SIZE can have. */
|
1993-03-23 01:19:58 +00:00
|
|
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|
|
1993-09-22 00:41:55 +00:00
|
|
|
|
#define MAX_REGISTER_RAW_SIZE (REGISTER_RAW_SIZE(XFP_REGNUM))
|
1993-03-23 01:19:58 +00:00
|
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|
1993-09-22 00:41:55 +00:00
|
|
|
|
/* Largest value REGISTER_VIRTUAL_SIZE can have.
|
|
|
|
|
Are FPS1, FPS2, FPR "virtual" regisers? */
|
1993-03-23 01:19:58 +00:00
|
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|
|
1993-09-22 00:41:55 +00:00
|
|
|
|
#define MAX_REGISTER_VIRTUAL_SIZE (REGISTER_RAW_SIZE(XFP_REGNUM))
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
1993-09-22 00:41:55 +00:00
|
|
|
|
/* Nonzero if register N requires conversion
|
|
|
|
|
from raw format to virtual format. */
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
1993-09-22 00:41:55 +00:00
|
|
|
|
#define REGISTER_CONVERTIBLE(N) ((N) >= XFP_REGNUM)
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
1994-02-28 06:06:05 +00:00
|
|
|
|
#include "floatformat.h"
|
1993-10-29 18:16:33 +00:00
|
|
|
|
|
* findvar.c (value_of_register, value_from_register),
hppa-tdep.c (pa_print_fp_reg), infcmd.c (do_registers_info),
valops.c (value_assign): Use REGISTER_CONVERT_TO_* only if
REGISTER_CONVERTIBLE is defined, otherwise just copy the content.
Pass desired type to REGISTER_CONVERT_TO_*.
* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
Pass length of desired type to store/extract_floating.
* config/i386/tm-arm.h, config/i386/tm-i386aix.h,
config/i386/tm-sun386.h, config/i386/tm-symmetry.h,
config/m88k/tm-m88k.h config/rs6000/tm-rs6000.h (REGISTER_CONVERT_*):
Use extract_floating and store_floating with length of desired type.
* config/m68k/tm-news.h (STORE,EXTRACT_RETURN_VALUE): Add type
parameter to REGISTER_CONVERT_*.
* config/a29k/tm-a29k.h, config/convex/tm-convex.h,
config/gould/tm-np1.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/i386/tm-i386v.h,
config/mips/tm-mips.h, config/ns32k/tm-merlin.h,
config/ns32k/tm-umax.h, config/pa/tm-hppa.h, config/pyr/tm-pyr.h,
config/sh/tm-sh.h, config/sparc/tm-sparc.h, config/tahoe/tm-tahoe.h,
config/vax/tm-vax.h, config/z8k/tm-z8k.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERT_TO_VIRTUAL): Remove
versions for which REGISTER_CONVERTIBLE is always false.
* z8k-tdep.c (register_convert_to_virtual, register_convert_to_raw):
Remove, no longer used.
* alpha-tdep.c (alpha_register_convert_to_raw,
alpha_register_convert_to_virtual): New routines to handle
the different raw formats in alpha floating point registers.
* config/alpha/tm-alpha.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use them.
1993-11-02 21:51:10 +00:00
|
|
|
|
/* Convert data from raw format for register REGNUM in buffer FROM
|
|
|
|
|
to virtual format with type TYPE in buffer TO. */
|
1993-10-29 18:16:33 +00:00
|
|
|
|
|
* findvar.c (value_of_register, value_from_register),
hppa-tdep.c (pa_print_fp_reg), infcmd.c (do_registers_info),
valops.c (value_assign): Use REGISTER_CONVERT_TO_* only if
REGISTER_CONVERTIBLE is defined, otherwise just copy the content.
Pass desired type to REGISTER_CONVERT_TO_*.
* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
Pass length of desired type to store/extract_floating.
* config/i386/tm-arm.h, config/i386/tm-i386aix.h,
config/i386/tm-sun386.h, config/i386/tm-symmetry.h,
config/m88k/tm-m88k.h config/rs6000/tm-rs6000.h (REGISTER_CONVERT_*):
Use extract_floating and store_floating with length of desired type.
* config/m68k/tm-news.h (STORE,EXTRACT_RETURN_VALUE): Add type
parameter to REGISTER_CONVERT_*.
* config/a29k/tm-a29k.h, config/convex/tm-convex.h,
config/gould/tm-np1.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/i386/tm-i386v.h,
config/mips/tm-mips.h, config/ns32k/tm-merlin.h,
config/ns32k/tm-umax.h, config/pa/tm-hppa.h, config/pyr/tm-pyr.h,
config/sh/tm-sh.h, config/sparc/tm-sparc.h, config/tahoe/tm-tahoe.h,
config/vax/tm-vax.h, config/z8k/tm-z8k.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERT_TO_VIRTUAL): Remove
versions for which REGISTER_CONVERTIBLE is always false.
* z8k-tdep.c (register_convert_to_virtual, register_convert_to_raw):
Remove, no longer used.
* alpha-tdep.c (alpha_register_convert_to_raw,
alpha_register_convert_to_virtual): New routines to handle
the different raw formats in alpha floating point registers.
* config/alpha/tm-alpha.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use them.
1993-11-02 21:51:10 +00:00
|
|
|
|
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
|
1993-09-22 00:41:55 +00:00
|
|
|
|
{ \
|
* findvar.c (value_of_register, value_from_register),
hppa-tdep.c (pa_print_fp_reg), infcmd.c (do_registers_info),
valops.c (value_assign): Use REGISTER_CONVERT_TO_* only if
REGISTER_CONVERTIBLE is defined, otherwise just copy the content.
Pass desired type to REGISTER_CONVERT_TO_*.
* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
Pass length of desired type to store/extract_floating.
* config/i386/tm-arm.h, config/i386/tm-i386aix.h,
config/i386/tm-sun386.h, config/i386/tm-symmetry.h,
config/m88k/tm-m88k.h config/rs6000/tm-rs6000.h (REGISTER_CONVERT_*):
Use extract_floating and store_floating with length of desired type.
* config/m68k/tm-news.h (STORE,EXTRACT_RETURN_VALUE): Add type
parameter to REGISTER_CONVERT_*.
* config/a29k/tm-a29k.h, config/convex/tm-convex.h,
config/gould/tm-np1.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/i386/tm-i386v.h,
config/mips/tm-mips.h, config/ns32k/tm-merlin.h,
config/ns32k/tm-umax.h, config/pa/tm-hppa.h, config/pyr/tm-pyr.h,
config/sh/tm-sh.h, config/sparc/tm-sparc.h, config/tahoe/tm-tahoe.h,
config/vax/tm-vax.h, config/z8k/tm-z8k.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERT_TO_VIRTUAL): Remove
versions for which REGISTER_CONVERTIBLE is always false.
* z8k-tdep.c (register_convert_to_virtual, register_convert_to_raw):
Remove, no longer used.
* alpha-tdep.c (alpha_register_convert_to_raw,
alpha_register_convert_to_virtual): New routines to handle
the different raw formats in alpha floating point registers.
* config/alpha/tm-alpha.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use them.
1993-11-02 21:51:10 +00:00
|
|
|
|
double val; \
|
1994-02-28 06:06:05 +00:00
|
|
|
|
floatformat_to_double (&floatformat_m88110_ext, (FROM), &val); \
|
* findvar.c (value_of_register, value_from_register),
hppa-tdep.c (pa_print_fp_reg), infcmd.c (do_registers_info),
valops.c (value_assign): Use REGISTER_CONVERT_TO_* only if
REGISTER_CONVERTIBLE is defined, otherwise just copy the content.
Pass desired type to REGISTER_CONVERT_TO_*.
* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
Pass length of desired type to store/extract_floating.
* config/i386/tm-arm.h, config/i386/tm-i386aix.h,
config/i386/tm-sun386.h, config/i386/tm-symmetry.h,
config/m88k/tm-m88k.h config/rs6000/tm-rs6000.h (REGISTER_CONVERT_*):
Use extract_floating and store_floating with length of desired type.
* config/m68k/tm-news.h (STORE,EXTRACT_RETURN_VALUE): Add type
parameter to REGISTER_CONVERT_*.
* config/a29k/tm-a29k.h, config/convex/tm-convex.h,
config/gould/tm-np1.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/i386/tm-i386v.h,
config/mips/tm-mips.h, config/ns32k/tm-merlin.h,
config/ns32k/tm-umax.h, config/pa/tm-hppa.h, config/pyr/tm-pyr.h,
config/sh/tm-sh.h, config/sparc/tm-sparc.h, config/tahoe/tm-tahoe.h,
config/vax/tm-vax.h, config/z8k/tm-z8k.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERT_TO_VIRTUAL): Remove
versions for which REGISTER_CONVERTIBLE is always false.
* z8k-tdep.c (register_convert_to_virtual, register_convert_to_raw):
Remove, no longer used.
* alpha-tdep.c (alpha_register_convert_to_raw,
alpha_register_convert_to_virtual): New routines to handle
the different raw formats in alpha floating point registers.
* config/alpha/tm-alpha.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use them.
1993-11-02 21:51:10 +00:00
|
|
|
|
store_floating ((TO), TYPE_LENGTH (TYPE), val); \
|
1993-09-22 00:41:55 +00:00
|
|
|
|
}
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
* findvar.c (value_of_register, value_from_register),
hppa-tdep.c (pa_print_fp_reg), infcmd.c (do_registers_info),
valops.c (value_assign): Use REGISTER_CONVERT_TO_* only if
REGISTER_CONVERTIBLE is defined, otherwise just copy the content.
Pass desired type to REGISTER_CONVERT_TO_*.
* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
Pass length of desired type to store/extract_floating.
* config/i386/tm-arm.h, config/i386/tm-i386aix.h,
config/i386/tm-sun386.h, config/i386/tm-symmetry.h,
config/m88k/tm-m88k.h config/rs6000/tm-rs6000.h (REGISTER_CONVERT_*):
Use extract_floating and store_floating with length of desired type.
* config/m68k/tm-news.h (STORE,EXTRACT_RETURN_VALUE): Add type
parameter to REGISTER_CONVERT_*.
* config/a29k/tm-a29k.h, config/convex/tm-convex.h,
config/gould/tm-np1.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/i386/tm-i386v.h,
config/mips/tm-mips.h, config/ns32k/tm-merlin.h,
config/ns32k/tm-umax.h, config/pa/tm-hppa.h, config/pyr/tm-pyr.h,
config/sh/tm-sh.h, config/sparc/tm-sparc.h, config/tahoe/tm-tahoe.h,
config/vax/tm-vax.h, config/z8k/tm-z8k.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERT_TO_VIRTUAL): Remove
versions for which REGISTER_CONVERTIBLE is always false.
* z8k-tdep.c (register_convert_to_virtual, register_convert_to_raw):
Remove, no longer used.
* alpha-tdep.c (alpha_register_convert_to_raw,
alpha_register_convert_to_virtual): New routines to handle
the different raw formats in alpha floating point registers.
* config/alpha/tm-alpha.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use them.
1993-11-02 21:51:10 +00:00
|
|
|
|
/* Convert data from virtual format with type TYPE in buffer FROM
|
|
|
|
|
to raw format for register REGNUM in buffer TO. */
|
1993-10-29 18:16:33 +00:00
|
|
|
|
|
* findvar.c (value_of_register, value_from_register),
hppa-tdep.c (pa_print_fp_reg), infcmd.c (do_registers_info),
valops.c (value_assign): Use REGISTER_CONVERT_TO_* only if
REGISTER_CONVERTIBLE is defined, otherwise just copy the content.
Pass desired type to REGISTER_CONVERT_TO_*.
* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
Pass length of desired type to store/extract_floating.
* config/i386/tm-arm.h, config/i386/tm-i386aix.h,
config/i386/tm-sun386.h, config/i386/tm-symmetry.h,
config/m88k/tm-m88k.h config/rs6000/tm-rs6000.h (REGISTER_CONVERT_*):
Use extract_floating and store_floating with length of desired type.
* config/m68k/tm-news.h (STORE,EXTRACT_RETURN_VALUE): Add type
parameter to REGISTER_CONVERT_*.
* config/a29k/tm-a29k.h, config/convex/tm-convex.h,
config/gould/tm-np1.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/i386/tm-i386v.h,
config/mips/tm-mips.h, config/ns32k/tm-merlin.h,
config/ns32k/tm-umax.h, config/pa/tm-hppa.h, config/pyr/tm-pyr.h,
config/sh/tm-sh.h, config/sparc/tm-sparc.h, config/tahoe/tm-tahoe.h,
config/vax/tm-vax.h, config/z8k/tm-z8k.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERT_TO_VIRTUAL): Remove
versions for which REGISTER_CONVERTIBLE is always false.
* z8k-tdep.c (register_convert_to_virtual, register_convert_to_raw):
Remove, no longer used.
* alpha-tdep.c (alpha_register_convert_to_raw,
alpha_register_convert_to_virtual): New routines to handle
the different raw formats in alpha floating point registers.
* config/alpha/tm-alpha.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use them.
1993-11-02 21:51:10 +00:00
|
|
|
|
#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
|
1993-09-22 00:41:55 +00:00
|
|
|
|
{ \
|
* findvar.c (value_of_register, value_from_register),
hppa-tdep.c (pa_print_fp_reg), infcmd.c (do_registers_info),
valops.c (value_assign): Use REGISTER_CONVERT_TO_* only if
REGISTER_CONVERTIBLE is defined, otherwise just copy the content.
Pass desired type to REGISTER_CONVERT_TO_*.
* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
Pass length of desired type to store/extract_floating.
* config/i386/tm-arm.h, config/i386/tm-i386aix.h,
config/i386/tm-sun386.h, config/i386/tm-symmetry.h,
config/m88k/tm-m88k.h config/rs6000/tm-rs6000.h (REGISTER_CONVERT_*):
Use extract_floating and store_floating with length of desired type.
* config/m68k/tm-news.h (STORE,EXTRACT_RETURN_VALUE): Add type
parameter to REGISTER_CONVERT_*.
* config/a29k/tm-a29k.h, config/convex/tm-convex.h,
config/gould/tm-np1.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/i386/tm-i386v.h,
config/mips/tm-mips.h, config/ns32k/tm-merlin.h,
config/ns32k/tm-umax.h, config/pa/tm-hppa.h, config/pyr/tm-pyr.h,
config/sh/tm-sh.h, config/sparc/tm-sparc.h, config/tahoe/tm-tahoe.h,
config/vax/tm-vax.h, config/z8k/tm-z8k.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERT_TO_VIRTUAL): Remove
versions for which REGISTER_CONVERTIBLE is always false.
* z8k-tdep.c (register_convert_to_virtual, register_convert_to_raw):
Remove, no longer used.
* alpha-tdep.c (alpha_register_convert_to_raw,
alpha_register_convert_to_virtual): New routines to handle
the different raw formats in alpha floating point registers.
* config/alpha/tm-alpha.h (REGISTER_CONVERTIBLE,
REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW): Use them.
1993-11-02 21:51:10 +00:00
|
|
|
|
double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
|
1994-02-28 06:06:05 +00:00
|
|
|
|
floatformat_from_double (&floatformat_m88110_ext, &val, (TO)); \
|
1993-09-22 00:41:55 +00:00
|
|
|
|
}
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
|
|
|
|
/* Return the GDB type object for the "standard" data type
|
|
|
|
|
of data in register N. */
|
|
|
|
|
|
1993-09-22 00:41:55 +00:00
|
|
|
|
#define REGISTER_VIRTUAL_TYPE(N) \
|
|
|
|
|
((N) >= XFP_REGNUM \
|
|
|
|
|
? builtin_type_double \
|
|
|
|
|
: ((N) == PC_REGNUM || (N) == FP_REGNUM || (N) == SP_REGNUM \
|
|
|
|
|
? lookup_pointer_type (builtin_type_void) : builtin_type_int))
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
|
|
|
|
/* The 88k call/return conventions call for "small" values to be returned
|
|
|
|
|
into consecutive registers starting from r2. */
|
|
|
|
|
|
|
|
|
|
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
|
1993-09-01 20:37:15 +00:00
|
|
|
|
memcpy ((VALBUF), &(((char *)REGBUF)[REGISTER_BYTE(RV_REGNUM)]), TYPE_LENGTH (TYPE))
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
|
|
|
|
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF))
|
|
|
|
|
|
|
|
|
|
/* Write into appropriate registers a function return value
|
|
|
|
|
of type TYPE, given in virtual format. */
|
|
|
|
|
|
|
|
|
|
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
|
|
|
|
|
write_register_bytes (2*REGISTER_RAW_SIZE(0), (VALBUF), TYPE_LENGTH (TYPE))
|
|
|
|
|
|
|
|
|
|
/* In COFF, if PCC says a parameter is a short or a char, do not
|
|
|
|
|
change it to int (it seems the convention is to change it). */
|
|
|
|
|
|
|
|
|
|
#define BELIEVE_PCC_PROMOTION 1
|
|
|
|
|
|
|
|
|
|
/* 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.
|
|
|
|
|
|
|
|
|
|
However, if FRAME_CHAIN_VALID returns zero,
|
|
|
|
|
it means the given frame is the outermost one and has no caller. */
|
|
|
|
|
|
|
|
|
|
extern CORE_ADDR frame_chain ();
|
|
|
|
|
extern int frame_chain_valid ();
|
|
|
|
|
extern int frameless_function_invocation ();
|
|
|
|
|
|
|
|
|
|
#define FRAME_CHAIN(thisframe) \
|
|
|
|
|
frame_chain (thisframe)
|
|
|
|
|
|
|
|
|
|
#define FRAMELESS_FUNCTION_INVOCATION(frame, fromleaf) \
|
|
|
|
|
fromleaf = frameless_function_invocation (frame)
|
|
|
|
|
|
|
|
|
|
/* Define other aspects of the stack frame. */
|
|
|
|
|
|
|
|
|
|
#define FRAME_SAVED_PC(FRAME) \
|
|
|
|
|
frame_saved_pc (FRAME)
|
|
|
|
|
extern CORE_ADDR frame_saved_pc ();
|
|
|
|
|
|
|
|
|
|
#define FRAME_ARGS_ADDRESS(fi) \
|
|
|
|
|
frame_args_address (fi)
|
|
|
|
|
extern CORE_ADDR frame_args_address ();
|
|
|
|
|
|
|
|
|
|
#define FRAME_LOCALS_ADDRESS(fi) \
|
|
|
|
|
frame_locals_address (fi)
|
|
|
|
|
extern CORE_ADDR frame_locals_address ();
|
|
|
|
|
|
|
|
|
|
/* Return number of args passed to a frame.
|
|
|
|
|
Can return -1, meaning no way to tell. */
|
|
|
|
|
|
|
|
|
|
#define FRAME_NUM_ARGS(numargs, fi) ((numargs) = -1)
|
|
|
|
|
|
|
|
|
|
/* Return number of bytes at start of arglist that are not really args. */
|
|
|
|
|
|
|
|
|
|
#define FRAME_ARGS_SKIP 0
|
|
|
|
|
|
|
|
|
|
/* 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. */
|
|
|
|
|
|
|
|
|
|
/* On the 88k, parameter registers get stored into the so called "homing"
|
|
|
|
|
area. This *always* happens when you compiled with GCC and use -g.
|
|
|
|
|
Also, (with GCC and -g) the saving of the parameter register values
|
|
|
|
|
always happens right within the function prologue code, so these register
|
|
|
|
|
values can generally be relied upon to be already copied into their
|
|
|
|
|
respective homing slots by the time you will normally try to look at
|
|
|
|
|
them (we hope).
|
|
|
|
|
|
|
|
|
|
Note that homing area stack slots are always at *positive* offsets from
|
|
|
|
|
the frame pointer. Thus, the homing area stack slots for the parameter
|
|
|
|
|
registers (passed values) for a given function are actually part of the
|
|
|
|
|
frame area of the caller. This is unusual, but it should not present
|
|
|
|
|
any special problems for GDB.
|
|
|
|
|
|
|
|
|
|
Note also that on the 88k, we are only interested in finding the
|
|
|
|
|
registers that might have been saved in memory. This is a subset of
|
|
|
|
|
the whole set of registers because the standard calling sequence allows
|
|
|
|
|
the called routine to clobber many registers.
|
|
|
|
|
|
|
|
|
|
We could manage to locate values for all of the so called "preserved"
|
|
|
|
|
registers (some of which may get saved within any particular frame) but
|
1993-08-17 22:21:50 +00:00
|
|
|
|
that would require decoding all of the tdesc information. That would be
|
1993-03-23 01:19:58 +00:00
|
|
|
|
nice information for GDB to have, but it is not strictly manditory if we
|
|
|
|
|
can live without the ability to look at values within (or backup to)
|
|
|
|
|
previous frames.
|
|
|
|
|
*/
|
|
|
|
|
|
1993-09-08 21:45:17 +00:00
|
|
|
|
struct frame_saved_regs;
|
|
|
|
|
struct frame_info;
|
|
|
|
|
|
|
|
|
|
void frame_find_saved_regs PARAMS((struct frame_info *fi,
|
|
|
|
|
struct frame_saved_regs *fsr));
|
|
|
|
|
|
1993-03-23 01:19:58 +00:00
|
|
|
|
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
|
|
|
|
|
frame_find_saved_regs (frame_info, &frame_saved_regs)
|
|
|
|
|
|
|
|
|
|
|
1993-09-23 17:16:35 +00:00
|
|
|
|
#define POP_FRAME pop_frame ()
|
|
|
|
|
extern void pop_frame ();
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
1993-09-23 17:16:35 +00:00
|
|
|
|
/* Call function stuff contributed by Kevin Buettner of Motorola. */
|
|
|
|
|
|
|
|
|
|
#define CALL_DUMMY_LOCATION AFTER_TEXT_END
|
|
|
|
|
|
|
|
|
|
extern void m88k_push_dummy_frame();
|
|
|
|
|
#define PUSH_DUMMY_FRAME m88k_push_dummy_frame()
|
|
|
|
|
|
|
|
|
|
#define CALL_DUMMY { \
|
|
|
|
|
0x67ff00c0, /* 0: subu #sp,#sp,0xc0 */ \
|
|
|
|
|
0x243f0004, /* 4: st #r1,#sp,0x4 */ \
|
|
|
|
|
0x245f0008, /* 8: st #r2,#sp,0x8 */ \
|
|
|
|
|
0x247f000c, /* c: st #r3,#sp,0xc */ \
|
|
|
|
|
0x249f0010, /* 10: st #r4,#sp,0x10 */ \
|
|
|
|
|
0x24bf0014, /* 14: st #r5,#sp,0x14 */ \
|
|
|
|
|
0x24df0018, /* 18: st #r6,#sp,0x18 */ \
|
|
|
|
|
0x24ff001c, /* 1c: st #r7,#sp,0x1c */ \
|
|
|
|
|
0x251f0020, /* 20: st #r8,#sp,0x20 */ \
|
|
|
|
|
0x253f0024, /* 24: st #r9,#sp,0x24 */ \
|
|
|
|
|
0x255f0028, /* 28: st #r10,#sp,0x28 */ \
|
|
|
|
|
0x257f002c, /* 2c: st #r11,#sp,0x2c */ \
|
|
|
|
|
0x259f0030, /* 30: st #r12,#sp,0x30 */ \
|
|
|
|
|
0x25bf0034, /* 34: st #r13,#sp,0x34 */ \
|
|
|
|
|
0x25df0038, /* 38: st #r14,#sp,0x38 */ \
|
|
|
|
|
0x25ff003c, /* 3c: st #r15,#sp,0x3c */ \
|
|
|
|
|
0x261f0040, /* 40: st #r16,#sp,0x40 */ \
|
|
|
|
|
0x263f0044, /* 44: st #r17,#sp,0x44 */ \
|
|
|
|
|
0x265f0048, /* 48: st #r18,#sp,0x48 */ \
|
|
|
|
|
0x267f004c, /* 4c: st #r19,#sp,0x4c */ \
|
|
|
|
|
0x269f0050, /* 50: st #r20,#sp,0x50 */ \
|
|
|
|
|
0x26bf0054, /* 54: st #r21,#sp,0x54 */ \
|
|
|
|
|
0x26df0058, /* 58: st #r22,#sp,0x58 */ \
|
|
|
|
|
0x26ff005c, /* 5c: st #r23,#sp,0x5c */ \
|
|
|
|
|
0x271f0060, /* 60: st #r24,#sp,0x60 */ \
|
|
|
|
|
0x273f0064, /* 64: st #r25,#sp,0x64 */ \
|
|
|
|
|
0x275f0068, /* 68: st #r26,#sp,0x68 */ \
|
|
|
|
|
0x277f006c, /* 6c: st #r27,#sp,0x6c */ \
|
|
|
|
|
0x279f0070, /* 70: st #r28,#sp,0x70 */ \
|
|
|
|
|
0x27bf0074, /* 74: st #r29,#sp,0x74 */ \
|
|
|
|
|
0x27df0078, /* 78: st #r30,#sp,0x78 */ \
|
|
|
|
|
0x63df0000, /* 7c: addu #r30,#sp,0x0 */ \
|
|
|
|
|
0x145f0000, /* 80: ld #r2,#sp,0x0 */ \
|
|
|
|
|
0x147f0004, /* 84: ld #r3,#sp,0x4 */ \
|
|
|
|
|
0x149f0008, /* 88: ld #r4,#sp,0x8 */ \
|
|
|
|
|
0x14bf000c, /* 8c: ld #r5,#sp,0xc */ \
|
|
|
|
|
0x14df0010, /* 90: ld #r6,#sp,0x10 */ \
|
|
|
|
|
0x14ff0014, /* 94: ld #r7,#sp,0x14 */ \
|
|
|
|
|
0x151f0018, /* 98: ld #r8,#sp,0x18 */ \
|
|
|
|
|
0x153f001c, /* 9c: ld #r9,#sp,0x1c */ \
|
|
|
|
|
0x5c200000, /* a0: or.u #r1,#r0,0x0 */ \
|
|
|
|
|
0x58210000, /* a4: or #r1,#r1,0x0 */ \
|
|
|
|
|
0xf400c801, /* a8: jsr #r1 */ \
|
|
|
|
|
0xf000d1ff /* ac: tb0 0x0,#r0,0x1ff */ \
|
|
|
|
|
}
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
1993-09-23 17:16:35 +00:00
|
|
|
|
#define CALL_DUMMY_START_OFFSET 0x80
|
|
|
|
|
#define CALL_DUMMY_LENGTH 0xb0
|
|
|
|
|
|
|
|
|
|
/* FIXME: byteswapping. */
|
|
|
|
|
#define FIX_CALL_DUMMY(dummy, pc, fun, nargs, args, type, gcc_p) \
|
|
|
|
|
{ \
|
|
|
|
|
*(unsigned long *)((char *) (dummy) + 0xa0) |= \
|
|
|
|
|
(((unsigned long) (fun)) >> 16); \
|
|
|
|
|
*(unsigned long *)((char *) (dummy) + 0xa4) |= \
|
|
|
|
|
(((unsigned long) (fun)) & 0xffff); \
|
|
|
|
|
pc = text_end; \
|
|
|
|
|
}
|
1993-03-23 01:19:58 +00:00
|
|
|
|
|
1993-09-23 17:16:35 +00:00
|
|
|
|
#define STACK_ALIGN(addr) (((addr)+7) & -8)
|
|
|
|
|
|
|
|
|
|
#define STORE_STRUCT_RETURN(addr, sp) \
|
|
|
|
|
write_register (SRA_REGNUM, (addr))
|
|
|
|
|
|
|
|
|
|
#define NEED_TEXT_START_END 1
|
|
|
|
|
|
|
|
|
|
/* According to the MC88100 RISC Microprocessor User's Manual, section
|
|
|
|
|
6.4.3.1.2:
|
|
|
|
|
|
|
|
|
|
... can be made to return to a particular instruction by placing a
|
|
|
|
|
valid instruction address in the SNIP and the next sequential
|
|
|
|
|
instruction address in the SFIP (with V bits set and E bits clear).
|
|
|
|
|
The rte resumes execution at the instruction pointed to by the
|
|
|
|
|
SNIP, then the SFIP.
|
|
|
|
|
|
|
|
|
|
The E bit is the least significant bit (bit 0). The V (valid) bit is
|
|
|
|
|
bit 1. This is why we logical or 2 into the values we are writing
|
|
|
|
|
below. It turns out that SXIP plays no role when returning from an
|
|
|
|
|
exception so nothing special has to be done with it. We could even
|
|
|
|
|
(presumably) give it a totally bogus value.
|
|
|
|
|
|
|
|
|
|
-- Kevin Buettner
|
|
|
|
|
*/
|
|
|
|
|
|
1994-07-17 21:08:42 +00:00
|
|
|
|
#define TARGET_WRITE_PC(val, pid) { \
|
|
|
|
|
write_register_pid(SXIP_REGNUM, (long) val, pid); \
|
|
|
|
|
write_register_pid(SNIP_REGNUM, (long) val | 2, pid); \
|
|
|
|
|
write_register_pid(SFIP_REGNUM, ((long) val | 2) + 4, pid); \
|
1993-09-23 17:16:35 +00:00
|
|
|
|
}
|