CONFIG_ADM6996_PHY=y CONFIG_AR2315_WDT=y CONFIG_AR8216_PHY=y CONFIG_ARCH_BINFMT_ELF_STATE=y CONFIG_ARCH_CLOCKSOURCE_DATA=y CONFIG_ARCH_DISCARD_MEMBLOCK=y CONFIG_ARCH_HAS_ELF_RANDOMIZE=y # CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set # CONFIG_ARCH_HAS_SG_CHAIN is not set # CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is not set # CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set CONFIG_ARCH_HIBERNATION_POSSIBLE=y CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y CONFIG_ARCH_MMAP_RND_BITS_MAX=15 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15 # CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set # CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set CONFIG_ARCH_SUPPORTS_UPROBES=y CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_ARCH_USE_BUILTIN_BSWAP=y CONFIG_ARCH_USE_QUEUED_RWLOCKS=y CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y CONFIG_ATH25=y CONFIG_BLK_MQ_PCI=y CONFIG_CEVT_R4K=y CONFIG_CLONE_BACKWARDS=y CONFIG_CMDLINE="console=ttyS0,9600 rootfstype=squashfs,jffs2" CONFIG_CMDLINE_BOOL=y # CONFIG_CMDLINE_OVERRIDE is not set CONFIG_CPU_BIG_ENDIAN=y CONFIG_CPU_GENERIC_DUMP_TLB=y CONFIG_CPU_HAS_PREFETCH=y CONFIG_CPU_HAS_SYNC=y CONFIG_CPU_MIPS32=y CONFIG_CPU_MIPS32_R1=y CONFIG_CPU_MIPSR1=y CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y CONFIG_CPU_R4K_CACHE_TLB=y CONFIG_CPU_R4K_FPU=y CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y CONFIG_CPU_SUPPORTS_HIGHMEM=y CONFIG_CRYPTO_RNG2=y CONFIG_CRYPTO_WORKQUEUE=y CONFIG_CSRC_R4K=y CONFIG_DMA_NONCOHERENT=y CONFIG_EARLY_PRINTK=y CONFIG_ETHERNET_PACKET_MANGLE=y CONFIG_GENERIC_ATOMIC64=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_GENERIC_CPU_AUTOPROBE=y CONFIG_GENERIC_IO=y CONFIG_GENERIC_IRQ_CHIP=y CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y CONFIG_GENERIC_IRQ_SHOW=y CONFIG_GENERIC_PCI_IOMAP=y CONFIG_GENERIC_SCHED_CLOCK=y CONFIG_GENERIC_SMP_IDLE_THREAD=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GPIOLIB=y CONFIG_GPIO_AR2315=y CONFIG_GPIO_AR5312=y CONFIG_GPIO_SYSFS=y # CONFIG_GRO_CELLS is not set CONFIG_HANDLE_DOMAIN_IRQ=y CONFIG_HARDWARE_WATCHPOINTS=y CONFIG_HAS_DMA=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y # CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set # CONFIG_HAVE_ARCH_BITREVERSE is not set CONFIG_HAVE_ARCH_JUMP_LABEL=y CONFIG_HAVE_ARCH_KGDB=y CONFIG_HAVE_ARCH_SECCOMP_FILTER=y CONFIG_HAVE_ARCH_TRACEHOOK=y # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set CONFIG_HAVE_CBPF_JIT=y CONFIG_HAVE_CC_STACKPROTECTOR=y CONFIG_HAVE_CONTEXT_TRACKING=y CONFIG_HAVE_COPY_THREAD_TLS=y CONFIG_HAVE_C_RECORDMCOUNT=y CONFIG_HAVE_DEBUG_KMEMLEAK=y CONFIG_HAVE_DEBUG_STACKOVERFLOW=y CONFIG_HAVE_DMA_API_DEBUG=y CONFIG_HAVE_DMA_CONTIGUOUS=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_GENERIC_DMA_COHERENT=y CONFIG_HAVE_IDE=y CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y CONFIG_HAVE_MEMBLOCK=y CONFIG_HAVE_MEMBLOCK_NODE_MAP=y CONFIG_HAVE_MOD_ARCH_SPECIFIC=y CONFIG_HAVE_NET_DSA=y CONFIG_HAVE_OPROFILE=y CONFIG_HAVE_PERF_EVENTS=y CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y CONFIG_HAVE_SYSCALL_TRACEPOINTS=y CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y CONFIG_HW_HAS_PCI=y CONFIG_HW_RANDOM=y CONFIG_HZ_PERIODIC=y CONFIG_INITRAMFS_SOURCE="" CONFIG_IP17XX_PHY=y CONFIG_IRQ_DOMAIN=y CONFIG_IRQ_FORCED_THREADING=y CONFIG_IRQ_MIPS_CPU=y CONFIG_IRQ_WORK=y CONFIG_LEDS_GPIO=y CONFIG_MDIO_BUS=y CONFIG_MDIO_DEVICE=y CONFIG_MIPS=y CONFIG_MIPS_ASID_BITS=8 CONFIG_MIPS_ASID_SHIFT=0 CONFIG_MIPS_CLOCK_VSYSCALL=y # CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND is not set CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y # CONFIG_MIPS_HUGE_TLB_SUPPORT is not set CONFIG_MIPS_L1_CACHE_SHIFT=5 # CONFIG_MIPS_MACHINE is not set CONFIG_MODULES_USE_ELF_REL=y CONFIG_MTD_AR2315=y CONFIG_MTD_CFI_ADV_OPTIONS=y # CONFIG_MTD_CFI_GEOMETRY is not set # CONFIG_MTD_CFI_INTELEXT is not set CONFIG_MTD_MYLOADER_PARTS=y CONFIG_MTD_PHYSMAP=y CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-3 CONFIG_MTD_REDBOOT_PARTS=y CONFIG_MVSWITCH_PHY=y CONFIG_NEED_DMA_MAP_STATE=y CONFIG_NEED_PER_CPU_KM=y CONFIG_NET_AR231X=y CONFIG_NO_GENERIC_PCI_IOPORT_MAP=y # CONFIG_NO_IOPORT_MAP is not set # CONFIG_OF is not set CONFIG_PCI=y CONFIG_PCI_AR2315=y CONFIG_PCI_DISABLE_COMMON_QUIRKS=y CONFIG_PCI_DOMAINS=y CONFIG_PCI_DRIVERS_LEGACY=y CONFIG_PERF_USE_VMALLOC=y CONFIG_PGTABLE_LEVELS=2 CONFIG_PHYLIB=y # CONFIG_RCU_NEED_SEGCBLIST is not set # CONFIG_RCU_STALL_COMMON is not set # CONFIG_SCHED_INFO is not set # CONFIG_SCSI_DMA is not set # CONFIG_SERIAL_8250_FSL is not set CONFIG_SERIAL_8250_NR_UARTS=1 CONFIG_SERIAL_8250_RUNTIME_UARTS=1 CONFIG_SOC_AR2315=y CONFIG_SOC_AR5312=y CONFIG_SRCU=y # CONFIG_SWAP is not set CONFIG_SWCONFIG=y CONFIG_SYSCTL_EXCEPTION_TRACE=y CONFIG_SYS_HAS_CPU_MIPS32_R1=y CONFIG_SYS_HAS_EARLY_PRINTK=y CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y CONFIG_SYS_SUPPORTS_ARBIT_HZ=y CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y CONFIG_TICK_CPU_ACCOUNTING=y CONFIG_TINY_SRCU=y CONFIG_USB_SUPPORT=y /a> 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 
--  Lexical analysis for numbers.
--  Copyright (C) 2002 - 2014 Tristan Gingold
--
--  GHDL is free software; you can redistribute it and/or modify it under
--  the terms of the GNU General Public License as published by the Free
--  Software Foundation; either version 2, or (at your option) any later
--  version.
--
--  GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
--  WARRANTY; without even the implied warranty of MERCHANTABILITY or
--  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
--  for more details.
--
--  You should have received a copy of the GNU General Public License
--  along with GHDL; see the file COPYING.  If not, write to the Free
--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
--  02111-1307, USA.

with Interfaces; use Interfaces;
with Grt.Fcvt; use Grt.Fcvt;

separate (Vhdl.Scanner)

-- scan a decimal literal or a based literal.
--
-- LRM93 13.4.1
-- DECIMAL_LITERAL ::= INTEGER [ . INTEGER ] [ EXPONENT ]
-- EXPONENT ::= E [ + ] INTEGER | E - INTEGER
--
-- LRM93 13.4.2
-- BASED_LITERAL ::= BASE # BASED_INTEGER [ . BASED_INTEGER ] # EXPONENT
-- BASE ::= INTEGER
procedure Scan_Literal is
   --  Numbers of digits.
   Scale : Integer;
   Res : Bignum;

   --  LRM 13.4.1
   --  INTEGER ::= DIGIT { [ UNDERLINE ] DIGIT }
   --
   --  Update SCALE, RES.
   --  The first character must be a digit.
   procedure Scan_Integer
   is
      C : Character;
   begin
      C := Source (Pos);
      loop
         --  C is a digit.
         Bignum_Mul_Int (Res, 10, Character'Pos (C) - Character'Pos ('0'));
         Scale := Scale + 1;

         Pos := Pos + 1;
         C := Source (Pos);
         if C = '_' then
            loop
               Pos := Pos + 1;
               C := Source (Pos);
               exit when C /= '_';
               Error_Msg_Scan ("double underscore in number");
            end loop;
            if C not in '0' .. '9' then
               Error_Msg_Scan ("underscore must be followed by a digit");
            end if;
         end if;
         exit when C not in '0' .. '9';
      end loop;
   end Scan_Integer;

   C : Character;
   D : Natural;
   Ok : Boolean;
   Has_Dot : Boolean;
   Exp : Integer;
   Exp_Neg : Boolean;
   Base : Positive;
begin
   --  Start with a simple and fast conversion.
   C := Source (Pos);
   D := 0;
   loop
      D := D * 10 + Character'Pos (C) - Character'Pos ('0');

      Pos := Pos + 1;
      C := Source (Pos);
      if C = '_' then
         loop
            Pos := Pos + 1;
            C := Source (Pos);
            exit when C /= '_';
            Error_Msg_Scan ("double underscore in number");
         end loop;
         if C not in '0' .. '9' then
            Error_Msg_Scan ("underscore must be followed by a digit");
         end if;
      end if;
      if C not in '0' .. '9' then
         if C = '.' or else C = '#' or else (C = 'e' or C = 'E' or C = ':')
         then
            --  Continue scanning.
            Bignum_Int (Res, D);
            exit;
         end if;

         --  Finished.
         --  a universal integer.
         Current_Token := Tok_Integer;
         --  No possible overflow.
         Current_Context.Lit_Int64 := Int64 (D);
         return;
      elsif D >= (Natural'Last / 10) - 1 then
         --  Number may be greather than the natural limit.
         Scale := 0;
         Bignum_Int (Res, D);
         Scan_Integer;
         exit;
      end if;
   end loop;

   Has_Dot := False;
   Base := 10;
   Scale := 0;

   C := Source (Pos);
   if C = '.' then
      --  Decimal integer.
      Has_Dot := True;
      Pos := Pos + 1;
      C := Source (Pos);
      if C not in '0' .. '9' then
         Error_Msg_Scan ("a dot must be followed by a digit");
         Current_Token := Tok_Real;
         Current_Context.Lit_Fp64 := Fp64 (To_Float_64 (False, Res, Base, 0));
         return;
      end if;
      Scan_Integer;
   elsif C = '#'
     or else (C = ':' and then (Source (Pos + 1) in '0' .. '9'
                                or else Source (Pos + 1) in 'a' .. 'f'
                                or else Source (Pos + 1) in 'A' .. 'F'))
   then
      --  LRM 13.10
      --  The number sign (#) of a based literal can be replaced by colon (:),
      --  provided that the replacement is done for both occurrences.
      -- GHDL: correctly handle 'variable v : integer range 0 to 7:= 3'.
      --   Is there any other places where a digit can be followed
      --   by a colon ? (See IR 1093).

      --  Based integer.
      declare
         Number_Sign : constant Character := C;
         Res_Int : Interfaces.Unsigned_64;
      begin
         Bignum_To_Int (Res, Res_Int, Ok);
         if not Ok or else Res_Int > 16 then
            --  LRM 13.4.2
            --  The base must be [...] at most sixteen.
            Error_Msg_Scan ("base must be at most 16");
            --  Fallback.
            Base := 16;
         elsif Res_Int < 2 then
            --  LRM 13.4.2
            --  The base must be at least two [...].
            Error_Msg_Scan ("base must be at least 2");
            --  Fallback.
            Base := 2;
         else
            Base := Natural (Res_Int);
         end if;

         Pos := Pos + 1;
         Bignum_Int (Res, 0);
         C := Source (Pos);
         loop
            if C >= '0' and C <= '9' then
               D := Character'Pos (C) - Character'Pos ('0');
            elsif C >= 'A' and C <= 'F' then
               D := Character'Pos (C) - Character'Pos ('A') + 10;
            elsif C >= 'a' and C <= 'f' then
               D := Character'Pos (C) - Character'Pos ('a') + 10;
            else
               Error_Msg_Scan ("bad extended digit");
               exit;
            end if;

            if D >= Base then
               --  LRM 13.4.2
               --  The conventional meaning of base notation is
               --  assumed; in particular the value of each extended
               --  digit of a based literal must be less then the base.
               Error_Msg_Scan ("digit beyond base");
               D := 1;
            end if;
            Pos := Pos + 1;
            Bignum_Mul_Int (Res, Base, D);
            Scale := Scale + 1;

            C := Source (Pos);
            if C = '_' then
               loop
                  Pos := Pos + 1;
                  C := Source (Pos);
                  exit when C /= '_';
                  Error_Msg_Scan ("double underscore in based integer");
               end loop;
            elsif C = '.' then
               if Has_Dot then
                  Error_Msg_Scan ("double dot ignored");
               else
                  Has_Dot := True;
                  Scale := 0;
               end if;
               Pos := Pos + 1;
               C := Source (Pos);
            elsif C = Number_Sign then
               Pos := Pos + 1;