diff options
author | Jason Molenda <jmolenda@apple.com> | 1999-11-17 02:31:06 +0000 |
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committer | Jason Molenda <jmolenda@apple.com> | 1999-11-17 02:31:06 +0000 |
commit | 4ce44c668ddc0a909c3f081d98c68bea90a93af9 (patch) | |
tree | cf330e250ee02bf77884cb91292faaaa849c5837 /gdb/config | |
parent | 2daf4fd8960262b76e597427e2e230b3fe6470b3 (diff) | |
download | fsf-binutils-gdb-4ce44c668ddc0a909c3f081d98c68bea90a93af9.zip fsf-binutils-gdb-4ce44c668ddc0a909c3f081d98c68bea90a93af9.tar.gz fsf-binutils-gdb-4ce44c668ddc0a909c3f081d98c68bea90a93af9.tar.bz2 |
import gdb-1999-11-16 snapshot
Diffstat (limited to 'gdb/config')
-rw-r--r-- | gdb/config/d10v/tm-d10v.h | 289 | ||||
-rw-r--r-- | gdb/config/i386/tm-go32.h | 182 | ||||
-rw-r--r-- | gdb/config/i386/tm-i386.h | 10 |
3 files changed, 31 insertions, 450 deletions
diff --git a/gdb/config/d10v/tm-d10v.h b/gdb/config/d10v/tm-d10v.h index 1983f69..e2fe383 100644 --- a/gdb/config/d10v/tm-d10v.h +++ b/gdb/config/d10v/tm-d10v.h @@ -22,290 +22,5 @@ #define GDB_MULTI_ARCH 1 -/* #define GDB_TARGET_IS_D10V - moved to gdbarch.h */ - -/* Define the bit, byte, and word ordering of the machine. */ - -#if !GDB_MULTI_ARCH - -#define TARGET_BYTE_ORDER BIG_ENDIAN - -/* Offset from address of function to start of its code. - Zero on most machines. */ - -#define FUNCTION_START_OFFSET 0 - -/* Advance PC across any function entry prologue instructions - to reach some "real" code. */ - -extern CORE_ADDR d10v_skip_prologue (); -#define SKIP_PROLOGUE(ip) (d10v_skip_prologue (ip)) - -/* Stack grows downward. */ -#define INNER_THAN(lhs,rhs) (core_addr_lessthan ((lhs), (rhs))) - -/* for a breakpoint, use "dbt || nop" */ -extern breakpoint_from_pc_fn d10v_breakpoint_from_pc; -#define BREAKPOINT_FROM_PC(PCPTR,LENPTR) (d10v_breakpoint_from_pc ((PCPTR), (LENPTR))) - -/* If your kernel resets the pc after the trap happens you may need to - define this before including this file. */ -#define DECR_PC_AFTER_BREAK 4 - -extern char *d10v_register_name PARAMS ((int reg_nr)); -#define REGISTER_NAME(NR) (d10v_register_name (NR)) - -#define NUM_REGS 37 - -#endif /* GDB_MULTI_ARCH */ - -/* Register numbers of various important registers. - Note that some of these values are "real" register numbers, - and correspond to the general registers of the machine, - and some are "phony" register numbers which are too large - to be actual register numbers as far as the user is concerned - but do serve to get the desired values when passed to read_register. */ - -/* Used by both d10v-tdep.c and remote-d10v.c */ - -#define R0_REGNUM 0 -#define LR_REGNUM 13 -#if !GDB_MULTI_ARCH -#define SP_REGNUM 15 -#define FP_REGNUM 11 -#define PC_REGNUM 18 -#endif -#define PSW_REGNUM 16 -#define IMAP0_REGNUM 32 -#define IMAP1_REGNUM 33 -#define DMAP_REGNUM 34 -#define A0_REGNUM 35 - -#if !GDB_MULTI_ARCH - -/* ??? */ -#define REGISTER_SIZE 2 - -/* Say how much memory is needed to store a copy of the register set */ -#define REGISTER_BYTES ((37/*NUM_REGS*/-2)*2+16) - -/* Index within `registers' of the first byte of the space for - register N. */ -extern int d10v_register_byte PARAMS ((int reg_nr)); -#define REGISTER_BYTE(N) (d10v_register_byte (N)) - -/* Number of bytes of storage in the actual machine representation - for register N. */ -extern int d10v_register_raw_size PARAMS ((int reg_nr)); -#define REGISTER_RAW_SIZE(N) (d10v_register_raw_size (N)) - -/* Number of bytes of storage in the program's representation - for register N. */ -extern int d10v_register_virtual_size PARAMS ((int reg_nr)); -#define REGISTER_VIRTUAL_SIZE(N) (d10v_register_virtual_size (N)) - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE 8 - -/* Largest value REGISTER_VIRTUAL_SIZE can have. */ - -#define MAX_REGISTER_VIRTUAL_SIZE 8 - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -extern struct type *d10v_register_virtual_type PARAMS ((int reg_nr)); -#define REGISTER_VIRTUAL_TYPE(N) (d10v_register_virtual_type (N)) - -/* convert $pc and $sp to/from virtual addresses */ -extern int d10v_register_convertible PARAMS ((int nr)); -extern void d10v_register_convert_to_virtual PARAMS ((int regnum, struct type * type, char *from, char *to)); -extern void d10v_register_convert_to_raw PARAMS ((struct type * type, int regnum, char *from, char *to)); -#define REGISTER_CONVERTIBLE(N) (d10v_register_convertible ((N))) -#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ - d10v_register_convert_to_virtual ((REGNUM), (TYPE), (FROM), (TO)) -#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ - d10v_register_convert_to_raw ((TYPE), (REGNUM), (FROM), (TO)) - -extern CORE_ADDR d10v_make_daddr PARAMS ((CORE_ADDR x)); -#define D10V_MAKE_DADDR(x) (d10v_make_daddr (x)) -extern CORE_ADDR d10v_make_iaddr PARAMS ((CORE_ADDR x)); -#define D10V_MAKE_IADDR(x) (d10v_make_iaddr (x)) - -extern int d10v_daddr_p PARAMS ((CORE_ADDR x)); -#define D10V_DADDR_P(X) (d10v_daddr_p (X)) -extern int d10v_iaddr_p PARAMS ((CORE_ADDR x)); -#define D10V_IADDR_P(X) (d10v_iaddr_p (X)) - -extern CORE_ADDR d10v_convert_daddr_to_raw PARAMS ((CORE_ADDR x)); -#define D10V_CONVERT_DADDR_TO_RAW(X) (d10v_convert_daddr_to_raw (X)) -extern CORE_ADDR d10v_convert_iaddr_to_raw PARAMS ((CORE_ADDR x)); -#define D10V_CONVERT_IADDR_TO_RAW(X) (d10v_convert_iaddr_to_raw (X)) - -/* Store the address of the place in which to copy the structure the - subroutine will return. This is called from call_function. - - We store structs through a pointer passed in the first Argument - register. */ - -extern void d10v_store_struct_return PARAMS ((CORE_ADDR addr, CORE_ADDR sp)); -#define STORE_STRUCT_RETURN(ADDR, SP) d10v_store_struct_return ((ADDR), (SP)) - - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format. - - Things always get returned in RET1_REGNUM, RET2_REGNUM, ... */ - -extern void d10v_store_return_value PARAMS ((struct type * type, char *valbuf)); -#define STORE_RETURN_VALUE(TYPE,VALBUF) d10v_store_return_value ((TYPE), (VALBUF)) - - -/* Extract from an array REGBUF containing the (raw) register state - the address in which a function should return its structure value, - as a CORE_ADDR (or an expression that can be used as one). */ - -extern CORE_ADDR d10v_extract_struct_value_address PARAMS ((char *regbuf)); -#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (d10v_extract_struct_value_address ((REGBUF))) - -/* Should we use EXTRACT_STRUCT_VALUE_ADDRESS instead of - EXTRACT_RETURN_VALUE? GCC_P is true if compiled with gcc - and TYPE is the type (which is known to be struct, union or array). - - The d10v returns anything less than 8 bytes in size in - registers. */ - -extern use_struct_convention_fn d10v_use_struct_convention; -#define USE_STRUCT_CONVENTION(gcc_p, type) d10v_use_struct_convention (gcc_p, type) - - -/* Define other aspects of the stack frame. - we keep a copy of the worked out return pc lying around, since it - is a useful bit of info */ - -extern void d10v_init_extra_frame_info PARAMS ((int fromleaf, struct frame_info * fi)); -#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ - d10v_init_extra_frame_info(fromleaf, fi) - -/* A macro that tells us whether the function invocation represented - by FI does not have a frame on the stack associated with it. If it - does not, FRAMELESS is set to 1, else 0. */ - -#define FRAMELESS_FUNCTION_INVOCATION(FI) \ - (frameless_look_for_prologue (FI)) - -extern CORE_ADDR d10v_frame_chain PARAMS ((struct frame_info * frame)); -#define FRAME_CHAIN(FRAME) d10v_frame_chain(FRAME) -extern int d10v_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *)); -#define FRAME_CHAIN_VALID(chain, thisframe) d10v_frame_chain_valid (chain, thisframe) -extern CORE_ADDR d10v_frame_saved_pc PARAMS ((struct frame_info * fi)); -#define FRAME_SAVED_PC(fi) (d10v_frame_saved_pc ((fi))) -extern CORE_ADDR d10v_frame_args_address PARAMS ((struct frame_info * fi)); -#define FRAME_ARGS_ADDRESS(fi) (d10v_frame_args_address ((fi))) -extern CORE_ADDR d10v_frame_locals_address PARAMS ((struct frame_info * fi)); -#define FRAME_LOCALS_ADDRESS(fi) (d10v_frame_locals_address ((fi))) - -/* Immediately after a function call, return the saved pc. We can't */ -/* use frame->return_pc beause that is determined by reading R13 off the */ -/*stack and that may not be written yet. */ - -extern CORE_ADDR d10v_saved_pc_after_call PARAMS ((struct frame_info * frame)); -#define SAVED_PC_AFTER_CALL(frame) (d10v_saved_pc_after_call ((frame))) - -/* 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(fi) (-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 frame_info->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. */ - -extern void d10v_frame_init_saved_regs PARAMS ((struct frame_info *)); -#define FRAME_INIT_SAVED_REGS(frame_info) \ - d10v_frame_init_saved_regs(frame_info) - -/* DUMMY FRAMES. Need these to support inferior function calls. They - work like this on D10V: First we set a breakpoint at 0 or __start. - Then we push all the registers onto the stack. Then put the - function arguments in the proper registers and set r13 to our - breakpoint address. Finally, the PC is set to the start of the - function being called (no JSR/BSR insn). When it hits the - breakpoint, clear the break point and pop the old register contents - off the stack. */ - -extern void d10v_pop_frame PARAMS ((void)); -#define POP_FRAME d10v_pop_frame () - -#define USE_GENERIC_DUMMY_FRAMES 1 -#define CALL_DUMMY {0} -#define CALL_DUMMY_START_OFFSET (0) -#define CALL_DUMMY_BREAKPOINT_OFFSET (0) -#define CALL_DUMMY_LOCATION AT_ENTRY_POINT -#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP) -#define CALL_DUMMY_ADDRESS() entry_point_address () -extern CORE_ADDR d10v_push_return_address PARAMS ((CORE_ADDR pc, CORE_ADDR sp)); -#define PUSH_RETURN_ADDRESS(PC, SP) d10v_push_return_address (PC, SP) - -#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP) -/* #define PC_IN_CALL_DUMMY(pc, sp, frame_address) ( pc == IMEM_START + 4 ) */ - -#define PUSH_DUMMY_FRAME generic_push_dummy_frame () - -/* override the default get_saved_register function with one that - takes account of generic CALL_DUMMY frames */ -#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \ - generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) - -#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \ - (d10v_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))) -extern CORE_ADDR d10v_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR)); - - -/* 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) \ -d10v_extract_return_value(TYPE, REGBUF, VALBUF) -extern void d10v_extract_return_value PARAMS ((struct type *, char *, char *)); - - -void d10v_write_pc PARAMS ((CORE_ADDR val, int pid)); -CORE_ADDR d10v_read_pc PARAMS ((int pid)); -void d10v_write_sp PARAMS ((CORE_ADDR val)); -CORE_ADDR d10v_read_sp PARAMS ((void)); -void d10v_write_fp PARAMS ((CORE_ADDR val)); -CORE_ADDR d10v_read_fp PARAMS ((void)); - -#define TARGET_READ_PC(pid) d10v_read_pc (pid) -#define TARGET_WRITE_PC(val,pid) d10v_write_pc (val, pid) -#define TARGET_READ_FP() d10v_read_fp () -#define TARGET_WRITE_FP(val) d10v_write_fp (val) -#define TARGET_READ_SP() d10v_read_sp () -#define TARGET_WRITE_SP(val) d10v_write_sp (val) - -/* Number of bits in the appropriate type */ -#define TARGET_INT_BIT (2 * TARGET_CHAR_BIT) -#define TARGET_PTR_BIT (4 * TARGET_CHAR_BIT) -#define TARGET_DOUBLE_BIT (4 * TARGET_CHAR_BIT) -#define TARGET_LONG_DOUBLE_BIT (8 * TARGET_CHAR_BIT) - - -/* For the d10v when talking to the remote d10v board, GDB addresses - need to be translated into a format that the d10v rom monitor - understands. */ - -extern void remote_d10v_translate_xfer_address PARAMS ((CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR * rem_addr, int *rem_len)); -#define REMOTE_TRANSLATE_XFER_ADDRESS(GDB_ADDR, GDB_LEN, REM_ADDR, REM_LEN) \ - remote_d10v_translate_xfer_address ((GDB_ADDR), (GDB_LEN), (REM_ADDR), (REM_LEN)) - -#endif +extern int d10v_register_sim_regno (int reg); +#define REGISTER_SIM_REGNO(NR) d10v_register_sim_regno((NR)) diff --git a/gdb/config/i386/tm-go32.h b/gdb/config/i386/tm-go32.h index 5793552..3db97f9 100644 --- a/gdb/config/i386/tm-go32.h +++ b/gdb/config/i386/tm-go32.h @@ -18,108 +18,10 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include "i386/tm-i386v.h" - -/* Number of machine registers. */ - -#undef NUM_FREGS -#define NUM_FREGS 15 -#undef NUM_REGS -#define NUM_REGS (16+NUM_FREGS) - -/* Initializer for an array of names of registers. There should be - NUM_REGS strings in this initializer. */ - -/* The order of the first 8 registers must match the compiler's - numbering scheme (which is the same as the 386 scheme). */ - -#undef REGISTER_NAMES -#define REGISTER_NAMES { "eax", "ecx", "edx", "ebx", \ - "esp", "ebp", "esi", "edi", \ - "eip", "eflags","cs", "ss", \ - "ds", "es", "fs", "gs", \ - "st0", "st1", "st2", "st3", \ - "st4", "st5", "st6", "st7", \ - "fctrl","fstat", "ftag", "fcs", \ - "fopsel","fip", "fopoff" } - -#undef FP_REGNUM -#define FP_REGNUM 5 /* (ebp) Contains addr of stack frame */ -#undef SP_REGNUM -#define SP_REGNUM 4 /* (usp) Contains address of top of stack */ -#undef PS_REGNUM -#define PS_REGNUM 9 /* (ps) Contains processor status */ -#undef PC_REGNUM -#define PC_REGNUM 8 /* (eip) Contains program counter */ -#undef FP0_REGNUM -#define FP0_REGNUM 16 /* Floating point register 0 */ -#undef FPC_REGNUM -#define FPC_REGNUM 24 /* 80387 control register */ -#undef FPCWD_REGNUM -#define FPCWD_REGNUM FPC_REGNUM -#undef FPSWD_REGNUM -#define FPSWD_REGNUM 25 /* 80387 status register */ -#undef FPTWD_REGNUM -#define FPTWD_REGNUM 26 /* 80387 tag register */ -#undef FPIPO_REGNUM -#define FPIPO_REGNUM 29 /* 80387 instruction pointer offset reg */ -#undef FPIPS_REGNUM -#define FPIPS_REGNUM 27 /* 80387 instruction pointer selector reg */ -#undef FPOOS_REGNUM -#define FPOOS_REGNUM 30 /* 80387 operand pointer offset reg */ -#undef FPOPS_REGNUM -#define FPOPS_REGNUM 28 /* 80387 operand pointer selector reg */ - -/* Total amount of space needed to store our copies of the machine's - register state, the array `registers'. */ - -#undef REGISTER_BYTES -#define REGISTER_BYTES (10*4 + 6*2 + 8*10 + 5*2 + 2*4) - -/* Index within `registers' of the first byte of the space for - register N. */ - -#undef REGISTER_BYTE -#define REGBYTE_0 0 -#define REGBYTE_10 (REGBYTE_0+10*4) -#define REGBYTE_16 (REGBYTE_10+6*2) -#define REGBYTE_24 (REGBYTE_16+8*10) -#define REGBYTE_29 (REGBYTE_24+5*2) -#define REGISTER_BYTE(N) (((N) < 10) ? (N) * 4 : \ - (N) < 16 ? REGBYTE_10 +((N) - 10) * 2 : \ - (N) < 24 ? REGBYTE_16 +((N) - 16) * 10 : \ - (N) < 29 ? REGBYTE_24 +((N) - 24) * 2 : \ - REGBYTE_29 + ((N) - 29) * 4) - -/* Number of bytes of storage in the actual machine representation - for register N. */ - -#undef REGISTER_RAW_SIZE -#define REGISTER_RAW_SIZE(N) ((N) < 10 ? 4 : (N) < 16 ? 2 : (N) < 24 ? 10 : \ - (N) < 29 ? 2 : 4) - -/* Number of bytes of storage in the program's representation - for register N. */ - -#undef REGISTER_VIRTUAL_SIZE -#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N) - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#undef MAX_REGISTER_RAW_SIZE -#define MAX_REGISTER_RAW_SIZE 10 - -/* Largest value REGISTER_VIRTUAL_SIZE can have. */ - -#undef MAX_REGISTER_VIRTUAL_SIZE -#define MAX_REGISTER_VIRTUAL_SIZE 10 - -/* Nonzero if register N requires conversion - from raw format to virtual format. */ - -#undef REGISTER_CONVERTIBLE -#define REGISTER_CONVERTIBLE(N) ((N) < FP0_REGNUM ? 0 :\ - (N) < FPC_REGNUM ? 1 : 0) +#undef HAVE_SSE_REGS /* FIXME! go32-nat.c needs to support XMMi registers */ +#define HAVE_I387_REGS + +#include "i386/tm-i386.h" /* The host and target are i386 machines and the compiler supports long doubles. Long doubles on the host therefore have the same @@ -142,70 +44,34 @@ extern int i387_hex_long_double_input (char *p, long double *putithere); +#ifdef LD_I387 /* otherwise, definitions from tm-i386.h are good enough */ + #undef REGISTER_CONVERT_TO_VIRTUAL -#ifdef LD_I387 -#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ -{ \ - if (TYPE == REGISTER_VIRTUAL_TYPE (REGNUM)) \ - { \ - memcpy (TO, FROM, TYPE_LENGTH (TYPE)); \ - } \ - else \ - { \ - long double val = *((long double *)FROM); \ - store_floating ((TO), TYPE_LENGTH (TYPE), val); \ - } \ +#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ +{ \ + long double val = *((long double *)(FROM)); \ + store_floating ((TO), TYPE_LENGTH (TYPE), val); \ } -#else -/* Convert data from raw format for register REGNUM in buffer FROM to - virtual format with type TYPE in buffer TO. */ -#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ -{ \ - double val; \ - i387_to_double ((FROM), (char *)&val); \ - store_floating ((TO), TYPE_LENGTH (TYPE), val); \ -} -#endif - -extern void i387_to_double PARAMS ((char *, char *)); #undef REGISTER_CONVERT_TO_RAW -#ifdef LD_I387 -#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ -{ \ - if (TYPE == REGISTER_VIRTUAL_TYPE (REGNUM)) \ - { \ - memcpy (TO, FROM, TYPE_LENGTH (TYPE)); \ - } \ - else \ - { \ - long double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \ - *((long double *)TO) = val; \ - } \ -} -#else -#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ -{ \ - double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \ - double_to_i387((char *)&val, (TO)); \ +#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ +{ \ + long double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \ + *((long double *)(TO)) = val; \ } -#endif -extern void double_to_i387 PARAMS ((char *, char *)); +/* Return the GDB type object for the "standard" data type of data in + register N. Perhaps si and di should go here, but potentially they + could be used for things other than address. */ -/* Return the GDB type object for the "standard" data type of data in - register N. */ +#define REGISTER_VIRTUAL_TYPE(N) \ + (((N) == PC_REGNUM || (N) == FP_REGNUM || (N) == SP_REGNUM) \ + ? lookup_pointer_type (builtin_type_void) \ + : IS_FP_REGNUM(N) ? builtin_type_long_double \ + : IS_SSE_REGNUM(N) ? builtin_type_v4sf \ + : builtin_type_int) -#undef REGISTER_VIRTUAL_TYPE -#ifdef LD_I387 -#define REGISTER_VIRTUAL_TYPE(N) \ - ((N < FP0_REGNUM) ? builtin_type_int : \ - (N < FPC_REGNUM) ? builtin_type_long_double : builtin_type_int) -#else -#define REGISTER_VIRTUAL_TYPE(N) \ - ((N < FP0_REGNUM) ? builtin_type_int : \ - (N < FPC_REGNUM) ? builtin_type_double : builtin_type_int) -#endif +#endif /* LD_I387 */ #undef TARGET_LONG_DOUBLE_BIT #define TARGET_LONG_DOUBLE_BIT 96 diff --git a/gdb/config/i386/tm-i386.h b/gdb/config/i386/tm-i386.h index 9f4aaed..efc3f41 100644 --- a/gdb/config/i386/tm-i386.h +++ b/gdb/config/i386/tm-i386.h @@ -148,11 +148,11 @@ extern int i386_skip_prologue PARAMS ((int)); #define FP0_REGNUM 16 /* first FPU floating-point register */ #define FP7_REGNUM 23 /* last FPU floating-point register */ -/* All of these control registers are sixteen bits long (at most) in - the FPU, but are zero-extended to thirty-two bits in GDB's register - file. This makes it easier to compute the size of the control - register file, and somewhat easier to convert to and from the FSAVE - instruction's 32-bit format. */ +/* All of these control registers (except for FCOFF and FDOFF) are + sixteen bits long (at most) in the FPU, but are zero-extended to + thirty-two bits in GDB's register file. This makes it easier to + compute the size of the control register file, and somewhat easier + to convert to and from the FSAVE instruction's 32-bit format. */ #define FIRST_FPU_CTRL_REGNUM 24 #define FCTRL_REGNUM 24 /* FPU control word */ #define FPC_REGNUM 24 /* old name for FCTRL_REGNUM */ |