+++ /dev/null
-/* OBSOLETE /* Parameters for execution on a TI TMS320C80 (MVP) processor. */
-/* OBSOLETE Copyright 1997, 1999, 2000 */
-/* OBSOLETE Free Software Foundation, Inc. */
-/* OBSOLETE */
-/* OBSOLETE This file is part of GDB. */
-/* OBSOLETE */
-/* OBSOLETE This program is free software; you can redistribute it and/or modify */
-/* OBSOLETE it under the terms of the GNU General Public License as published by */
-/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
-/* OBSOLETE (at your option) any later version. */
-/* OBSOLETE */
-/* OBSOLETE This program is distributed in the hope that it will be useful, */
-/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
-/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
-/* OBSOLETE GNU General Public License for more details. */
-/* OBSOLETE */
-/* OBSOLETE You should have received a copy of the GNU General Public License */
-/* OBSOLETE along with this program; if not, write to the Free Software */
-/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */
-/* OBSOLETE Boston, MA 02111-1307, USA. */ */
-/* OBSOLETE */
-/* OBSOLETE #ifndef TM_TIC80_H */
-/* OBSOLETE #define TM_TIC80_H */
-/* OBSOLETE */
-/* OBSOLETE #include "regcache.h" */
-/* OBSOLETE */
-/* OBSOLETE /* Forward declare structs used in prototypes */ */
-/* OBSOLETE struct frame_info; */
-/* OBSOLETE struct type; */
-/* OBSOLETE struct value; */
-/* OBSOLETE struct symbol; */
-/* OBSOLETE struct frame_saved_regs; */
-/* OBSOLETE */
-/* OBSOLETE #define TARGET_BYTE_ORDER LITTLE_ENDIAN */
-/* OBSOLETE */
-/* OBSOLETE #define NUM_REGS 38 */
-/* OBSOLETE */
-/* OBSOLETE #define REGISTER_NAMES \ */
-/* OBSOLETE { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ */
-/* OBSOLETE "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ */
-/* OBSOLETE "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ */
-/* OBSOLETE "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \ */
-/* OBSOLETE "pc", "npc", \ */
-/* OBSOLETE "a0", "a1", "a2", "a3", \ */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Various dedicated register numbers */
-/* OBSOLETE FIXME: Shadow updates in sim/tic80/sim-calls.c */ */
-/* OBSOLETE */
-/* OBSOLETE #define SP_REGNUM 1 /* Contains address of top of stack */ */
-/* OBSOLETE #define ARG0_REGNUM 2 /* Contains argument 1 (r3 has high word) */ */
-/* OBSOLETE #define RET_REGNUM 2 /* Contains function return value */ */
-/* OBSOLETE #define ARGLAST_REGNUM 12 /* Contains argument 6 (r13 has high word) */ */
-/* OBSOLETE #define FP_REGNUM 30 /* Contains address of executing stack frame */ */
-/* OBSOLETE #define LR_REGNUM 31 /* Contains address of caller (link register) */ */
-/* OBSOLETE #define PC_REGNUM 32 /* Contains program counter (FIXME?) */ */
-/* OBSOLETE #define NPC_REGNUM 33 /* Contains the next program counter (FIXME?) */ */
-/* OBSOLETE #define A0_REGNUM 34 /* Accumulator register 0 */ */
-/* OBSOLETE #define A3_REGNUM 37 /* Accumulator register 1 */ */
-/* OBSOLETE */
-/* OBSOLETE #define R0_REGNUM 0 /* General Purpose Register 0 - for sim */ */
-/* OBSOLETE #define Rn_REGNUM 31 /* Last General Purpose Register - for sim */ */
-/* OBSOLETE #define An_REGNUM A3_REGNUM /* Last Accumulator register - for sim */ */
-/* OBSOLETE */
-/* OBSOLETE /* Total amount of space needed to store our copies of the machine's */
-/* OBSOLETE register state, the array `registers'. */ */
-/* OBSOLETE */
-/* OBSOLETE #define REGISTER_BYTES (((NUM_REGS - 4) * 4) + (4 * 8)) */
-/* OBSOLETE */
-/* OBSOLETE /* Index within `registers' of the first byte of the space for */
-/* OBSOLETE register N. */ */
-/* OBSOLETE */
-/* OBSOLETE #define REGISTER_BYTE(N) \ */
-/* OBSOLETE (((N) >= A0_REGNUM) ? (((N) - A0_REGNUM) * 8 + A0_REGNUM * 4) : ((N) * 4)) */
-/* OBSOLETE */
-/* OBSOLETE /* Most registers are 4 bytes */ */
-/* OBSOLETE */
-/* OBSOLETE #define REGISTER_SIZE 4 */
-/* OBSOLETE */
-/* OBSOLETE /* Some registers are 8 bytes. */ */
-/* OBSOLETE */
-/* OBSOLETE #define REGISTER_RAW_SIZE(N) \ */
-/* OBSOLETE (((N) >= A0_REGNUM) ? 8 : 4) */
-/* OBSOLETE */
-/* OBSOLETE /* Largest value REGISTER_RAW_SIZE can have. */ */
-/* OBSOLETE */
-/* OBSOLETE #define MAX_REGISTER_RAW_SIZE (8) */
-/* OBSOLETE */
-/* OBSOLETE /* All regs are 4 bytes. */ */
-/* OBSOLETE */
-/* OBSOLETE #define REGISTER_VIRTUAL_SIZE(N) (REGISTER_RAW_SIZE(N)) */
-/* OBSOLETE */
-/* OBSOLETE /* Largest value REGISTER_VIRTUAL_SIZE can have. */ */
-/* OBSOLETE */
-/* OBSOLETE #define MAX_REGISTER_VIRTUAL_SIZE (MAX_REGISTER_RAW_SIZE) */
-/* OBSOLETE */
-/* OBSOLETE /* Return the GDB type object for the "standard" data type */
-/* OBSOLETE of data in register N. */ */
-/* OBSOLETE */
-/* OBSOLETE #define REGISTER_VIRTUAL_TYPE(N) /* FIXME? */ \ */
-/* OBSOLETE (((N) >= A0_REGNUM) ? builtin_type_float : builtin_type_int) */
-/* OBSOLETE */
-/* OBSOLETE /* Offset from address of function to start of its code. */
-/* OBSOLETE Zero on most machines. */ */
-/* OBSOLETE */
-/* OBSOLETE #define FUNCTION_START_OFFSET 0 */
-/* OBSOLETE */
-/* OBSOLETE /* Stack grows downward. */ */
-/* OBSOLETE */
-/* OBSOLETE #define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) */
-/* OBSOLETE */
-/* OBSOLETE /* Sequence of bytes for breakpoint instruction. */
-/* OBSOLETE This is padded out to the size of a machine word. */ */
-/* OBSOLETE */
-/* OBSOLETE #define BREAKPOINT {0x49, 0x80, 0x00, 0x00} /* FIXME! */ */
-/* OBSOLETE */
-/* OBSOLETE /* Amount PC must be decremented by after a breakpoint. */
-/* OBSOLETE This is often the number of bytes in BREAKPOINT */
-/* OBSOLETE but not always. */ */
-/* OBSOLETE */
-/* OBSOLETE #define DECR_PC_AFTER_BREAK 0 /* FIXME! */ */
-/* OBSOLETE */
-/* OBSOLETE /* Discard from the stack the innermost frame, restoring all registers. */ */
-/* OBSOLETE */
-/* OBSOLETE #define POP_FRAME tic80_pop_frame(get_current_frame ()) */
-/* OBSOLETE extern struct frame_info *tic80_pop_frame (struct frame_info *frame); */
-/* OBSOLETE */
-/* OBSOLETE /* Return number of bytes at start of arglist that are not really args. */ */
-/* OBSOLETE */
-/* OBSOLETE #define FRAME_ARGS_SKIP 0 */
-/* OBSOLETE */
-/* OBSOLETE /* Set VAL to the number of args passed to frame described by FI. */
-/* OBSOLETE Can set VAL to -1, meaning no way to tell. */ */
-/* OBSOLETE /* We can't tell how many args there are */ */
-/* OBSOLETE */
-/* OBSOLETE #define FRAME_NUM_ARGS(fi) (-1) */
-/* OBSOLETE */
-/* OBSOLETE #define FRAME_ARGS_SKIP 0 */
-/* OBSOLETE #define FRAME_ARGS_ADDRESS(fi) (fi)->frame */
-/* OBSOLETE #define FRAME_LOCALS_ADDRESS(fi) (fi)->frame */
-/* OBSOLETE */
-/* OBSOLETE /* Define other aspects of the stack frame. */
-/* OBSOLETE We keep the offsets of all saved registers, 'cause we need 'em a lot! */
-/* OBSOLETE We also keep the current size of the stack frame, and the offset of */
-/* OBSOLETE the frame pointer from the stack pointer (for frameless functions, and */
-/* OBSOLETE when we're still in the prologue of a function with a frame) */ */
-/* OBSOLETE */
-/* OBSOLETE #define EXTRA_FRAME_INFO \ */
-/* OBSOLETE struct frame_saved_regs fsr; \ */
-/* OBSOLETE int framesize; \ */
-/* OBSOLETE int frameoffset; \ */
-/* OBSOLETE int framereg; */
-/* OBSOLETE */
-/* OBSOLETE extern void tic80_init_extra_frame_info (struct frame_info *fi); */
-/* OBSOLETE #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) tic80_init_extra_frame_info (fi) */
-/* OBSOLETE #define INIT_FRAME_PC /* Not necessary */ */
-/* OBSOLETE */
-/* OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, */
-/* OBSOLETE the addresses of the saved registers of frame described by FRAME_INFO. */
-/* OBSOLETE This includes special registers such as pc and fp saved in special */
-/* OBSOLETE ways in the stack frame. sp is even more special: */
-/* OBSOLETE the address we return for it IS the sp for the next frame. */ */
-/* OBSOLETE */
-/* OBSOLETE #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ */
-/* OBSOLETE tic80_frame_find_saved_regs(frame_info, &(frame_saved_regs)) */
-/* OBSOLETE extern void tic80_frame_find_saved_regs (struct frame_info *, */
-/* OBSOLETE struct frame_saved_regs *); */
-/* OBSOLETE */
-/* OBSOLETE /* Advance PC across any function entry prologue instructions */
-/* OBSOLETE to reach some "real" code. */ */
-/* OBSOLETE */
-/* OBSOLETE #define SKIP_PROLOGUE(pc) (tic80_skip_prologue (pc)) */
-/* OBSOLETE extern CORE_ADDR tic80_skip_prologue (CORE_ADDR pc); */
-/* OBSOLETE */
-/* OBSOLETE /* Immediately after a function call, return the saved pc. */
-/* OBSOLETE Can't always go through the frames for this because on some machines */
-/* OBSOLETE the new frame is not set up until the new function executes */
-/* OBSOLETE some instructions. */ */
-/* OBSOLETE */
-/* OBSOLETE #define SAVED_PC_AFTER_CALL(frame) read_register (LR_REGNUM) */
-/* OBSOLETE */
-/* OBSOLETE /* Describe the pointer in each stack frame to the previous stack frame */
-/* OBSOLETE (its caller). */ */
-/* OBSOLETE */
-/* OBSOLETE /* FRAME_CHAIN takes a frame's nominal address */
-/* OBSOLETE and produces the frame's chain-pointer. */ */
-/* OBSOLETE */
-/* OBSOLETE #define FRAME_CHAIN(thisframe) (CORE_ADDR) tic80_frame_chain (thisframe) */
-/* OBSOLETE extern CORE_ADDR tic80_frame_chain (struct frame_info *); */
-/* OBSOLETE */
-/* OBSOLETE #define FRAME_SAVED_PC(FRAME) tic80_frame_saved_pc (FRAME) */
-/* OBSOLETE extern CORE_ADDR tic80_frame_saved_pc (struct frame_info *); */
-/* OBSOLETE */
-/* OBSOLETE /* Store the address of the place in which to copy the structure the */
-/* OBSOLETE subroutine will return. This is called from call_function. */
-/* OBSOLETE */
-/* OBSOLETE We store structs through a pointer passed in R2 */ */
-/* OBSOLETE */
-/* OBSOLETE #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \ */
-/* OBSOLETE write_register (ARG0_REGNUM, STRUCT_ADDR) */
-/* OBSOLETE */
-/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */
-/* OBSOLETE a function return value of type TYPE, and copy that, in virtual format, */
-/* OBSOLETE into VALBUF. */ */
-/* OBSOLETE */
-/* OBSOLETE #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ */
-/* OBSOLETE memcpy ((VALBUF), \ */
-/* OBSOLETE (char *)(REGBUF) + REGISTER_BYTE (RET_REGNUM) + \ */
-/* OBSOLETE ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \ */
-/* OBSOLETE TYPE_LENGTH (TYPE)) */
-/* OBSOLETE */
-/* OBSOLETE /* Write into appropriate registers a function return value */
-/* OBSOLETE of type TYPE, given in virtual format. */ */
-/* OBSOLETE */
-/* OBSOLETE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ */
-/* OBSOLETE write_register_bytes(REGISTER_BYTE (RET_REGNUM) + \ */
-/* OBSOLETE ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\ */
-/* OBSOLETE (VALBUF), TYPE_LENGTH (TYPE)); */
-/* OBSOLETE */
-/* OBSOLETE */
-/* OBSOLETE */
-/* OBSOLETE /* PUSH_ARGUMENTS */ */
-/* OBSOLETE extern CORE_ADDR tic80_push_arguments (int nargs, */
-/* OBSOLETE struct value **args, */
-/* OBSOLETE CORE_ADDR sp, */
-/* OBSOLETE unsigned char struct_return, */
-/* OBSOLETE CORE_ADDR struct_addr); */
-/* OBSOLETE */
-/* OBSOLETE #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ */
-/* OBSOLETE (tic80_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)) */
-/* OBSOLETE */
-/* OBSOLETE /* PUSH_RETURN_ADDRESS */ */
-/* OBSOLETE extern CORE_ADDR tic80_push_return_address (CORE_ADDR, CORE_ADDR); */
-/* OBSOLETE #define PUSH_RETURN_ADDRESS(PC, SP) tic80_push_return_address (PC, SP) */
-/* OBSOLETE */
-/* OBSOLETE /* override the standard get_saved_register function with */
-/* OBSOLETE one that takes account of generic CALL_DUMMY frames */ */
-/* OBSOLETE #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \ */
-/* OBSOLETE generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) */
-/* OBSOLETE */
-/* OBSOLETE #define USE_GENERIC_DUMMY_FRAMES 1 */
-/* OBSOLETE #define CALL_DUMMY {0} */
-/* OBSOLETE #define CALL_DUMMY_LENGTH (0) */
-/* OBSOLETE #define CALL_DUMMY_START_OFFSET (0) */
-/* OBSOLETE #define CALL_DUMMY_BREAKPOINT_OFFSET (0) */
-/* OBSOLETE #define FIX_CALL_DUMMY(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP) */
-/* OBSOLETE #define CALL_DUMMY_LOCATION AT_ENTRY_POINT */
-/* OBSOLETE #define CALL_DUMMY_ADDRESS() entry_point_address () */
-/* OBSOLETE */
-/* OBSOLETE /* generic dummy frame stuff */ */
-/* OBSOLETE */
-/* OBSOLETE #define PUSH_DUMMY_FRAME generic_push_dummy_frame () */
-/* OBSOLETE #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP) */
-/* OBSOLETE */
-/* OBSOLETE #endif /* TM_TIC80_H */ */
+++ /dev/null
-/* OBSOLETE /* Target-dependent code for the TI TMS320C80 (MVP) for GDB, the GNU debugger. */
-/* OBSOLETE Copyright 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc. */
-/* OBSOLETE */
-/* OBSOLETE This file is part of GDB. */
-/* OBSOLETE */
-/* OBSOLETE This program is free software; you can redistribute it and/or modify */
-/* OBSOLETE it under the terms of the GNU General Public License as published by */
-/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
-/* OBSOLETE (at your option) any later version. */
-/* OBSOLETE */
-/* OBSOLETE This program is distributed in the hope that it will be useful, */
-/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
-/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
-/* OBSOLETE GNU General Public License for more details. */
-/* OBSOLETE */
-/* OBSOLETE You should have received a copy of the GNU General Public License */
-/* OBSOLETE along with this program; if not, write to the Free Software */
-/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */
-/* OBSOLETE Boston, MA 02111-1307, USA. */ */
-/* OBSOLETE */
-/* OBSOLETE #include "defs.h" */
-/* OBSOLETE #include "value.h" */
-/* OBSOLETE #include "frame.h" */
-/* OBSOLETE #include "inferior.h" */
-/* OBSOLETE #include "obstack.h" */
-/* OBSOLETE #include "target.h" */
-/* OBSOLETE #include "bfd.h" */
-/* OBSOLETE #include "gdb_string.h" */
-/* OBSOLETE #include "gdbcore.h" */
-/* OBSOLETE #include "symfile.h" */
-/* OBSOLETE #include "regcache.h" */
-/* OBSOLETE */
-/* OBSOLETE /* Function: frame_find_saved_regs */
-/* OBSOLETE Return the frame_saved_regs structure for the frame. */
-/* OBSOLETE Doesn't really work for dummy frames, but it does pass back */
-/* OBSOLETE an empty frame_saved_regs, so I guess that's better than total failure */ */
-/* OBSOLETE */
-/* OBSOLETE void */
-/* OBSOLETE tic80_frame_find_saved_regs (struct frame_info *fi, */
-/* OBSOLETE struct frame_saved_regs *regaddr) */
-/* OBSOLETE { */
-/* OBSOLETE memcpy (regaddr, &fi->fsr, sizeof (struct frame_saved_regs)); */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: skip_prologue */
-/* OBSOLETE Find end of function prologue. */ */
-/* OBSOLETE */
-/* OBSOLETE CORE_ADDR */
-/* OBSOLETE tic80_skip_prologue (CORE_ADDR pc) */
-/* OBSOLETE { */
-/* OBSOLETE CORE_ADDR func_addr, func_end; */
-/* OBSOLETE struct symtab_and_line sal; */
-/* OBSOLETE */
-/* OBSOLETE /* See what the symbol table says */ */
-/* OBSOLETE */
-/* OBSOLETE if (find_pc_partial_function (pc, NULL, &func_addr, &func_end)) */
-/* OBSOLETE { */
-/* OBSOLETE sal = find_pc_line (func_addr, 0); */
-/* OBSOLETE */
-/* OBSOLETE if (sal.line != 0 && sal.end < func_end) */
-/* OBSOLETE return sal.end; */
-/* OBSOLETE else */
-/* OBSOLETE /* Either there's no line info, or the line after the prologue is after */
-/* OBSOLETE the end of the function. In this case, there probably isn't a */
-/* OBSOLETE prologue. */ */
-/* OBSOLETE return pc; */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* We can't find the start of this function, so there's nothing we can do. */ */
-/* OBSOLETE return pc; */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: tic80_scan_prologue */
-/* OBSOLETE This function decodes the target function prologue to determine: */
-/* OBSOLETE 1) the size of the stack frame */
-/* OBSOLETE 2) which registers are saved on it */
-/* OBSOLETE 3) the offsets of saved regs */
-/* OBSOLETE 4) the frame size */
-/* OBSOLETE This information is stored in the "extra" fields of the frame_info. */ */
-/* OBSOLETE */
-/* OBSOLETE static void */
-/* OBSOLETE tic80_scan_prologue (struct frame_info *fi) */
-/* OBSOLETE { */
-/* OBSOLETE struct symtab_and_line sal; */
-/* OBSOLETE CORE_ADDR prologue_start, prologue_end, current_pc; */
-/* OBSOLETE */
-/* OBSOLETE /* Assume there is no frame until proven otherwise. */ */
-/* OBSOLETE fi->framereg = SP_REGNUM; */
-/* OBSOLETE fi->framesize = 0; */
-/* OBSOLETE fi->frameoffset = 0; */
-/* OBSOLETE */
-/* OBSOLETE /* this code essentially duplicates skip_prologue, */
-/* OBSOLETE but we need the start address below. */ */
-/* OBSOLETE */
-/* OBSOLETE if (find_pc_partial_function (fi->pc, NULL, &prologue_start, &prologue_end)) */
-/* OBSOLETE { */
-/* OBSOLETE sal = find_pc_line (prologue_start, 0); */
-/* OBSOLETE */
-/* OBSOLETE if (sal.line == 0) /* no line info, use current PC */ */
-/* OBSOLETE if (prologue_start != entry_point_address ()) */
-/* OBSOLETE prologue_end = fi->pc; */
-/* OBSOLETE else */
-/* OBSOLETE return; /* _start has no frame or prologue */ */
-/* OBSOLETE else if (sal.end < prologue_end) /* next line begins after fn end */ */
-/* OBSOLETE prologue_end = sal.end; /* (probably means no prologue) */ */
-/* OBSOLETE } */
-/* OBSOLETE else */
-/* OBSOLETE /* FIXME */ */
-/* OBSOLETE prologue_end = prologue_start + 40; /* We're in the boondocks: allow for */ */
-/* OBSOLETE /* 16 pushes, an add, and "mv fp,sp" */ */
-/* OBSOLETE */
-/* OBSOLETE prologue_end = min (prologue_end, fi->pc); */
-/* OBSOLETE */
-/* OBSOLETE /* Now search the prologue looking for instructions that set up the */
-/* OBSOLETE frame pointer, adjust the stack pointer, and save registers. */ */
-/* OBSOLETE */
-/* OBSOLETE for (current_pc = prologue_start; current_pc < prologue_end; current_pc += 4) */
-/* OBSOLETE { */
-/* OBSOLETE unsigned int insn; */
-/* OBSOLETE int regno; */
-/* OBSOLETE int offset = 0; */
-/* OBSOLETE */
-/* OBSOLETE insn = read_memory_unsigned_integer (current_pc, 4); */
-/* OBSOLETE */
-/* OBSOLETE if ((insn & 0x301000) == 0x301000) /* Long immediate? */ */
-/* OBSOLETE /* FIXME - set offset for long immediate instructions */ */
-/* OBSOLETE current_pc += 4; */
-/* OBSOLETE else */
-/* OBSOLETE { */
-/* OBSOLETE offset = insn & 0x7fff; /* extract 15-bit offset */ */
-/* OBSOLETE if (offset & 0x4000) /* if negative, sign-extend */ */
-/* OBSOLETE offset = -(0x8000 - offset); */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE if ((insn & 0x7fd0000) == 0x590000) /* st.{w,d} reg, xx(r1) */ */
-/* OBSOLETE { */
-/* OBSOLETE regno = ((insn >> 27) & 0x1f); */
-/* OBSOLETE fi->fsr.regs[regno] = offset; */
-/* OBSOLETE if (insn & 0x8000) /* 64-bit store (st.d)? */ */
-/* OBSOLETE fi->fsr.regs[regno + 1] = offset + 4; */
-/* OBSOLETE } */
-/* OBSOLETE else if ((insn & 0xffff8000) == 0x086c8000) /* addu xx, r1, r1 */ */
-/* OBSOLETE fi->framesize = -offset; */
-/* OBSOLETE else if ((insn & 0xffff8000) == 0xf06c8000) /* addu xx, r1, r30 */ */
-/* OBSOLETE { */
-/* OBSOLETE fi->framereg = FP_REGNUM; /* fp is now valid */ */
-/* OBSOLETE fi->frameoffset = offset; */
-/* OBSOLETE break; /* end of stack adjustments */ */
-/* OBSOLETE } */
-/* OBSOLETE else if (insn == 0xf03b2001) /* addu r1, r0, r30 */ */
-/* OBSOLETE { */
-/* OBSOLETE fi->framereg = FP_REGNUM; /* fp is now valid */ */
-/* OBSOLETE fi->frameoffset = 0; */
-/* OBSOLETE break; /* end of stack adjustments */ */
-/* OBSOLETE } */
-/* OBSOLETE else */
-/* OBSOLETE /* FIXME - handle long immediate instructions */ */
-/* OBSOLETE break; /* anything else isn't prologue */ */
-/* OBSOLETE } */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: init_extra_frame_info */
-/* OBSOLETE This function actually figures out the frame address for a given pc and */
-/* OBSOLETE sp. This is tricky on the c80 because we sometimes don't use an explicit */
-/* OBSOLETE frame pointer, and the previous stack pointer isn't necessarily recorded */
-/* OBSOLETE on the stack. The only reliable way to get this info is to */
-/* OBSOLETE examine the prologue. */ */
-/* OBSOLETE */
-/* OBSOLETE void */
-/* OBSOLETE tic80_init_extra_frame_info (struct frame_info *fi) */
-/* OBSOLETE { */
-/* OBSOLETE int reg; */
-/* OBSOLETE */
-/* OBSOLETE if (fi->next) */
-/* OBSOLETE fi->pc = FRAME_SAVED_PC (fi->next); */
-/* OBSOLETE */
-/* OBSOLETE /* Because zero is a valid register offset relative to SP, we initialize */
-/* OBSOLETE the offsets to -1 to indicate unused entries. */ */
-/* OBSOLETE for (reg = 0; reg < NUM_REGS; reg++) */
-/* OBSOLETE fi->fsr.regs[reg] = -1; */
-/* OBSOLETE */
-/* OBSOLETE if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) */
-/* OBSOLETE { */
-/* OBSOLETE /* We need to setup fi->frame here because run_stack_dummy gets it wrong */
-/* OBSOLETE by assuming it's always FP. */ */
-/* OBSOLETE fi->frame = generic_read_register_dummy (fi->pc, fi->frame, SP_REGNUM); */
-/* OBSOLETE fi->framesize = 0; */
-/* OBSOLETE fi->frameoffset = 0; */
-/* OBSOLETE return; */
-/* OBSOLETE } */
-/* OBSOLETE else */
-/* OBSOLETE { */
-/* OBSOLETE tic80_scan_prologue (fi); */
-/* OBSOLETE */
-/* OBSOLETE if (!fi->next) /* this is the innermost frame? */ */
-/* OBSOLETE fi->frame = read_register (fi->framereg); */
-/* OBSOLETE else */
-/* OBSOLETE /* not the innermost frame */ */
-/* OBSOLETE /* If this function uses FP as the frame register, and the function */
-/* OBSOLETE it called saved the FP, get the saved FP. */ if (fi->framereg == FP_REGNUM && */
-/* OBSOLETE fi->next->fsr.regs[FP_REGNUM] != (unsigned) -1) */
-/* OBSOLETE fi->frame = read_memory_integer (fi->next->fsr.regs[FP_REGNUM], 4); */
-/* OBSOLETE */
-/* OBSOLETE /* Convert SP-relative offsets of saved registers to real addresses. */ */
-/* OBSOLETE for (reg = 0; reg < NUM_REGS; reg++) */
-/* OBSOLETE if (fi->fsr.regs[reg] == (unsigned) -1) */
-/* OBSOLETE fi->fsr.regs[reg] = 0; /* unused entry */ */
-/* OBSOLETE else */
-/* OBSOLETE fi->fsr.regs[reg] += fi->frame - fi->frameoffset; */
-/* OBSOLETE } */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: find_callers_reg */
-/* OBSOLETE Find REGNUM on the stack. Otherwise, it's in an active register. One thing */
-/* OBSOLETE we might want to do here is to check REGNUM against the clobber mask, and */
-/* OBSOLETE somehow flag it as invalid if it isn't saved on the stack somewhere. This */
-/* OBSOLETE would provide a graceful failure mode when trying to get the value of */
-/* OBSOLETE caller-saves registers for an inner frame. */ */
-/* OBSOLETE */
-/* OBSOLETE CORE_ADDR */
-/* OBSOLETE tic80_find_callers_reg (struct frame_info *fi, int regnum) */
-/* OBSOLETE { */
-/* OBSOLETE for (; fi; fi = fi->next) */
-/* OBSOLETE if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) */
-/* OBSOLETE return generic_read_register_dummy (fi->pc, fi->frame, regnum); */
-/* OBSOLETE else if (fi->fsr.regs[regnum] != 0) */
-/* OBSOLETE return read_memory_integer (fi->fsr.regs[regnum], */
-/* OBSOLETE REGISTER_RAW_SIZE (regnum)); */
-/* OBSOLETE return read_register (regnum); */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: frame_chain */
-/* OBSOLETE Given a GDB frame, determine the address of the calling function's frame. */
-/* OBSOLETE This will be used to create a new GDB frame struct, and then */
-/* OBSOLETE INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame. */
-/* OBSOLETE For c80, we save the frame size when we initialize the frame_info. */ */
-/* OBSOLETE */
-/* OBSOLETE CORE_ADDR */
-/* OBSOLETE tic80_frame_chain (struct frame_info *fi) */
-/* OBSOLETE { */
-/* OBSOLETE CORE_ADDR fn_start, callers_pc, fp; */
-/* OBSOLETE */
-/* OBSOLETE /* is this a dummy frame? */ */
-/* OBSOLETE if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) */
-/* OBSOLETE return fi->frame; /* dummy frame same as caller's frame */ */
-/* OBSOLETE */
-/* OBSOLETE /* is caller-of-this a dummy frame? */ */
-/* OBSOLETE callers_pc = FRAME_SAVED_PC (fi); /* find out who called us: */ */
-/* OBSOLETE fp = tic80_find_callers_reg (fi, FP_REGNUM); */
-/* OBSOLETE if (PC_IN_CALL_DUMMY (callers_pc, fp, fp)) */
-/* OBSOLETE return fp; /* dummy frame's frame may bear no relation to ours */ */
-/* OBSOLETE */
-/* OBSOLETE if (find_pc_partial_function (fi->pc, 0, &fn_start, 0)) */
-/* OBSOLETE if (fn_start == entry_point_address ()) */
-/* OBSOLETE return 0; /* in _start fn, don't chain further */ */
-/* OBSOLETE */
-/* OBSOLETE if (fi->framereg == FP_REGNUM) */
-/* OBSOLETE return tic80_find_callers_reg (fi, FP_REGNUM); */
-/* OBSOLETE else */
-/* OBSOLETE return fi->frame + fi->framesize; */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: pop_frame */
-/* OBSOLETE Discard from the stack the innermost frame, */
-/* OBSOLETE restoring all saved registers. */ */
-/* OBSOLETE */
-/* OBSOLETE struct frame_info * */
-/* OBSOLETE tic80_pop_frame (struct frame_info *frame) */
-/* OBSOLETE { */
-/* OBSOLETE int regnum; */
-/* OBSOLETE */
-/* OBSOLETE if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame)) */
-/* OBSOLETE generic_pop_dummy_frame (); */
-/* OBSOLETE else */
-/* OBSOLETE { */
-/* OBSOLETE for (regnum = 0; regnum < NUM_REGS; regnum++) */
-/* OBSOLETE if (frame->fsr.regs[regnum] != 0) */
-/* OBSOLETE write_register (regnum, */
-/* OBSOLETE read_memory_integer (frame->fsr.regs[regnum], 4)); */
-/* OBSOLETE */
-/* OBSOLETE write_register (PC_REGNUM, FRAME_SAVED_PC (frame)); */
-/* OBSOLETE write_register (SP_REGNUM, read_register (FP_REGNUM)); */
-/* OBSOLETE #if 0 */
-/* OBSOLETE if (read_register (PSW_REGNUM) & 0x80) */
-/* OBSOLETE write_register (SPU_REGNUM, read_register (SP_REGNUM)); */
-/* OBSOLETE else */
-/* OBSOLETE write_register (SPI_REGNUM, read_register (SP_REGNUM)); */
-/* OBSOLETE #endif */
-/* OBSOLETE } */
-/* OBSOLETE flush_cached_frames (); */
-/* OBSOLETE return NULL; */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: frame_saved_pc */
-/* OBSOLETE Find the caller of this frame. We do this by seeing if LR_REGNUM is saved */
-/* OBSOLETE in the stack anywhere, otherwise we get it from the registers. */ */
-/* OBSOLETE */
-/* OBSOLETE CORE_ADDR */
-/* OBSOLETE tic80_frame_saved_pc (struct frame_info *fi) */
-/* OBSOLETE { */
-/* OBSOLETE if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) */
-/* OBSOLETE return generic_read_register_dummy (fi->pc, fi->frame, PC_REGNUM); */
-/* OBSOLETE else */
-/* OBSOLETE return tic80_find_callers_reg (fi, LR_REGNUM); */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: tic80_push_return_address (pc, sp) */
-/* OBSOLETE Set up the return address for the inferior function call. */
-/* OBSOLETE Necessary for targets that don't actually execute a JSR/BSR instruction */
-/* OBSOLETE (ie. when using an empty CALL_DUMMY) */ */
-/* OBSOLETE */
-/* OBSOLETE CORE_ADDR */
-/* OBSOLETE tic80_push_return_address (CORE_ADDR pc, CORE_ADDR sp) */
-/* OBSOLETE { */
-/* OBSOLETE write_register (LR_REGNUM, CALL_DUMMY_ADDRESS ()); */
-/* OBSOLETE return sp; */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE */
-/* OBSOLETE /* Function: push_arguments */
-/* OBSOLETE Setup the function arguments for calling a function in the inferior. */
-/* OBSOLETE */
-/* OBSOLETE On the TI C80 architecture, there are six register pairs (R2/R3 to R12/13) */
-/* OBSOLETE which are dedicated for passing function arguments. Up to the first six */
-/* OBSOLETE arguments (depending on size) may go into these registers. */
-/* OBSOLETE The rest go on the stack. */
-/* OBSOLETE */
-/* OBSOLETE Arguments that are smaller than 4 bytes will still take up a whole */
-/* OBSOLETE register or a whole 32-bit word on the stack, and will be */
-/* OBSOLETE right-justified in the register or the stack word. This includes */
-/* OBSOLETE chars, shorts, and small aggregate types. */
-/* OBSOLETE */
-/* OBSOLETE Arguments that are four bytes or less in size are placed in the */
-/* OBSOLETE even-numbered register of a register pair, and the odd-numbered */
-/* OBSOLETE register is not used. */
-/* OBSOLETE */
-/* OBSOLETE Arguments of 8 bytes size (such as floating point doubles) are placed */
-/* OBSOLETE in a register pair. The least significant 32-bit word is placed in */
-/* OBSOLETE the even-numbered register, and the most significant word in the */
-/* OBSOLETE odd-numbered register. */
-/* OBSOLETE */
-/* OBSOLETE Aggregate types with sizes between 4 and 8 bytes are passed */
-/* OBSOLETE entirely on the stack, and are left-justified within the */
-/* OBSOLETE double-word (as opposed to aggregates smaller than 4 bytes */
-/* OBSOLETE which are right-justified). */
-/* OBSOLETE */
-/* OBSOLETE Aggregates of greater than 8 bytes are first copied onto the stack, */
-/* OBSOLETE and then a pointer to the copy is passed in the place of the normal */
-/* OBSOLETE argument (either in a register if available, or on the stack). */
-/* OBSOLETE */
-/* OBSOLETE Functions that must return an aggregate type can return it in the */
-/* OBSOLETE normal return value registers (R2 and R3) if its size is 8 bytes or */
-/* OBSOLETE less. For larger return values, the caller must allocate space for */
-/* OBSOLETE the callee to copy the return value to. A pointer to this space is */
-/* OBSOLETE passed as an implicit first argument, always in R0. */ */
-/* OBSOLETE */
-/* OBSOLETE CORE_ADDR */
-/* OBSOLETE tic80_push_arguments (int nargs, value_ptr *args, CORE_ADDR sp, */
-/* OBSOLETE unsigned char struct_return, CORE_ADDR struct_addr) */
-/* OBSOLETE { */
-/* OBSOLETE int stack_offset, stack_alloc; */
-/* OBSOLETE int argreg; */
-/* OBSOLETE int argnum; */
-/* OBSOLETE struct type *type; */
-/* OBSOLETE CORE_ADDR regval; */
-/* OBSOLETE char *val; */
-/* OBSOLETE char valbuf[4]; */
-/* OBSOLETE int len; */
-/* OBSOLETE int odd_sized_struct; */
-/* OBSOLETE int is_struct; */
-/* OBSOLETE */
-/* OBSOLETE /* first force sp to a 4-byte alignment */ */
-/* OBSOLETE sp = sp & ~3; */
-/* OBSOLETE */
-/* OBSOLETE argreg = ARG0_REGNUM; */
-/* OBSOLETE /* The "struct return pointer" pseudo-argument goes in R0 */ */
-/* OBSOLETE if (struct_return) */
-/* OBSOLETE write_register (argreg++, struct_addr); */
-/* OBSOLETE */
-/* OBSOLETE /* Now make sure there's space on the stack */ */
-/* OBSOLETE for (argnum = 0, stack_alloc = 0; */
-/* OBSOLETE argnum < nargs; argnum++) */
-/* OBSOLETE stack_alloc += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3); */
-/* OBSOLETE sp -= stack_alloc; /* make room on stack for args */ */
-/* OBSOLETE */
-/* OBSOLETE */
-/* OBSOLETE /* Now load as many as possible of the first arguments into */
-/* OBSOLETE registers, and push the rest onto the stack. There are 16 bytes */
-/* OBSOLETE in four registers available. Loop thru args from first to last. */ */
-/* OBSOLETE */
-/* OBSOLETE argreg = ARG0_REGNUM; */
-/* OBSOLETE for (argnum = 0, stack_offset = 0; argnum < nargs; argnum++) */
-/* OBSOLETE { */
-/* OBSOLETE type = VALUE_TYPE (args[argnum]); */
-/* OBSOLETE len = TYPE_LENGTH (type); */
-/* OBSOLETE memset (valbuf, 0, sizeof (valbuf)); */
-/* OBSOLETE val = (char *) VALUE_CONTENTS (args[argnum]); */
-/* OBSOLETE */
-/* OBSOLETE /* FIXME -- tic80 can take doubleword arguments in register pairs */ */
-/* OBSOLETE is_struct = (type->code == TYPE_CODE_STRUCT); */
-/* OBSOLETE odd_sized_struct = 0; */
-/* OBSOLETE */
-/* OBSOLETE if (!is_struct) */
-/* OBSOLETE { */
-/* OBSOLETE if (len < 4) */
-/* OBSOLETE { /* value gets right-justified in the register or stack word */ */
-/* OBSOLETE memcpy (valbuf + (4 - len), val, len); */
-/* OBSOLETE val = valbuf; */
-/* OBSOLETE } */
-/* OBSOLETE if (len > 4 && (len & 3) != 0) */
-/* OBSOLETE odd_sized_struct = 1; /* such structs go entirely on stack */ */
-/* OBSOLETE } */
-/* OBSOLETE else */
-/* OBSOLETE { */
-/* OBSOLETE /* Structs are always passed by reference. */ */
-/* OBSOLETE write_register (argreg, sp + stack_offset); */
-/* OBSOLETE argreg++; */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE while (len > 0) */
-/* OBSOLETE { */
-/* OBSOLETE if (is_struct || argreg > ARGLAST_REGNUM || odd_sized_struct) */
-/* OBSOLETE { /* must go on the stack */ */
-/* OBSOLETE write_memory (sp + stack_offset, val, 4); */
-/* OBSOLETE stack_offset += 4; */
-/* OBSOLETE } */
-/* OBSOLETE /* NOTE WELL!!!!! This is not an "else if" clause!!! */
-/* OBSOLETE That's because some things get passed on the stack */
-/* OBSOLETE AND in the registers! */ */
-/* OBSOLETE if (!is_struct && argreg <= ARGLAST_REGNUM) */
-/* OBSOLETE { /* there's room in a register */ */
-/* OBSOLETE regval = extract_address (val, REGISTER_RAW_SIZE (argreg)); */
-/* OBSOLETE write_register (argreg, regval); */
-/* OBSOLETE argreg += 2; /* FIXME -- what about doubleword args? */ */
-/* OBSOLETE } */
-/* OBSOLETE /* Store the value 4 bytes at a time. This means that things */
-/* OBSOLETE larger than 4 bytes may go partly in registers and partly */
-/* OBSOLETE on the stack. */ */
-/* OBSOLETE len -= REGISTER_RAW_SIZE (argreg); */
-/* OBSOLETE val += REGISTER_RAW_SIZE (argreg); */
-/* OBSOLETE } */
-/* OBSOLETE } */
-/* OBSOLETE return sp; */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE /* Function: tic80_write_sp */
-/* OBSOLETE Because SP is really a read-only register that mirrors either SPU or SPI, */
-/* OBSOLETE we must actually write one of those two as well, depending on PSW. */ */
-/* OBSOLETE */
-/* OBSOLETE void */
-/* OBSOLETE tic80_write_sp (CORE_ADDR val) */
-/* OBSOLETE { */
-/* OBSOLETE #if 0 */
-/* OBSOLETE unsigned long psw = read_register (PSW_REGNUM); */
-/* OBSOLETE */
-/* OBSOLETE if (psw & 0x80) /* stack mode: user or interrupt */ */
-/* OBSOLETE write_register (SPU_REGNUM, val); */
-/* OBSOLETE else */
-/* OBSOLETE write_register (SPI_REGNUM, val); */
-/* OBSOLETE #endif */
-/* OBSOLETE write_register (SP_REGNUM, val); */
-/* OBSOLETE } */
-/* OBSOLETE */
-/* OBSOLETE void */
-/* OBSOLETE _initialize_tic80_tdep (void) */
-/* OBSOLETE { */
-/* OBSOLETE tm_print_insn = print_insn_tic80; */
-/* OBSOLETE } */
projects / binutils-gdb.git / commitdiff