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Diffstat (limited to 'gcc/config/dsp16xx/dsp16xx.h')
| -rw-r--r-- | gcc/config/dsp16xx/dsp16xx.h | 1980 |
1 files changed, 0 insertions, 1980 deletions
diff --git a/gcc/config/dsp16xx/dsp16xx.h b/gcc/config/dsp16xx/dsp16xx.h deleted file mode 100644 index 83a97f8979c..00000000000 --- a/gcc/config/dsp16xx/dsp16xx.h +++ /dev/null @@ -1,1980 +0,0 @@ -/* Definitions of target machine for GNU compiler. AT&T DSP1600. - Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc. - Contributed by Michael Collison (collison@world.std.com). - -This file is part of GNU CC. - -GNU CC 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 1, or (at your option) -any later version. - -GNU CC 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 GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -extern char *low_reg_names[]; -extern char *text_seg_name; -extern char *rsect_text; -extern char *data_seg_name; -extern char *rsect_data; -extern char *bss_seg_name; -extern char *rsect_bss; -extern char *const_seg_name; -extern char *rsect_const; -extern char *chip_name; -extern char *save_chip_name; -extern struct rtx_def *dsp16xx_compare_op0, *dsp16xx_compare_op1; -extern struct rtx_def *(*dsp16xx_compare_gen)(); -extern struct rtx_def *gen_compare_reg(); -extern struct rtx_def *dsp16xx_addhf3_libcall; -extern struct rtx_def *dsp16xx_subhf3_libcall; -extern struct rtx_def *dsp16xx_mulhf3_libcall; -extern struct rtx_def *dsp16xx_divhf3_libcall; -extern struct rtx_def *dsp16xx_cmphf3_libcall; -extern struct rtx_def *dsp16xx_fixhfhi2_libcall; -extern struct rtx_def *dsp16xx_floathihf2_libcall; -extern struct rtx_def *dsp16xx_neghf2_libcall; -extern struct rtx_def *dsp16xx_umulhi3_libcall; -extern struct rtx_def *dsp16xx_mulhi3_libcall; -extern struct rtx_def *dsp16xx_udivqi3_libcall; -extern struct rtx_def *dsp16xx_udivhi3_libcall; -extern struct rtx_def *dsp16xx_divqi3_libcall; -extern struct rtx_def *dsp16xx_divhi3_libcall; -extern struct rtx_def *dsp16xx_modqi3_libcall; -extern struct rtx_def *dsp16xx_modhi3_libcall; -extern struct rtx_def *dsp16xx_umodqi3_libcall; -extern struct rtx_def *dsp16xx_umodhi3_libcall; - -extern struct rtx_def *dsp16xx_ashrhi3_libcall; -extern struct rtx_def *dsp16xx_ashlhi3_libcall; -extern struct rtx_def *dsp16xx_lshrhi3_libcall; - - -extern int hard_regno_mode_ok (); -extern enum reg_class dsp16xx_reg_class_from_letter (); -extern enum reg_class dsp16xx_limit_reload_class (); -extern int hard_regno_nregs (); -extern int regno_reg_class (); -extern int move_operand (); -extern int symbolic_address_p (); -extern int Y_address (); -extern int call_address_operand (); -extern void notice_update_cc(); -extern void function_prologue (); -extern void function_epilogue (); -extern int dsp1600_comparison_reverse (); -extern void double_reg_from_memory (); -extern void double_reg_to_memory (); -extern void bss_section (); -extern struct rtx_def *dsp16xx_function_arg (); -extern void dsp16xx_function_arg_advance (); -extern enum rtx_code next_cc_user_code (); -extern enum rtx_code save_next_cc_user_code; -extern struct rtx_def *gen_tst_reg (); -extern char *output_block_move(); - -/* RUN-TIME TARGET SPECIFICATION */ -#define DSP16XX 1 - -/* Name of the AT&T assembler */ - -#define ASM_PROG "as1600" - -/* Name of the AT&T linker */ - -#define LD_PROG "ld1600" - -/* Define which switches take word arguments */ -#define WORD_SWITCH_TAKES_ARG(STR) \ - (!strcmp (STR, "ifile") ? 1 : \ - 0) - -#ifdef CC1_SPEC -#undef CC1_SPEC -#endif -#define CC1_SPEC "" - -/* Define this as a spec to call the AT&T assembler */ - -#define CROSS_ASM_SPEC "%{!S:as1600 %a %i\n }" - -/* Define this as a spec to call the AT&T linker */ - -#define CROSS_LINK_SPEC "%{!c:%{!M:%{!MM:%{!E:%{!S:ld1600 %l %X %{o*} %{m} \ - %{r} %{s} %{t} %{u*} %{x}\ - %{!A:%{!nostdlib:%{!nostartfiles:%S}}} %{static:}\ - %{L*} %D %o %{!nostdlib:-le1600 %L -le1600}\ - %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}" - -/* Nothing complicated here, just link with libc.a under normal - circumstances */ -#define LIB_SPEC "-lc" - -/* Specify the startup file to link with. */ -#define STARTFILE_SPEC "%{mmap1:m1_crt0.o%s} \ -%{mmap2:m2_crt0.o%s} \ -%{mmap3:m3_crt0.o%s} \ -%{mmap4:m4_crt0.o%s} \ -%{!mmap*: %{!ifile*: m4_crt0.o%s} %{ifile*: \ -%eA -ifile option requires a -map option}}" - -/* Specify the end file to link with */ - -#define ENDFILE_SPEC "%{mmap1:m1_crtn.o%s} \ -%{mmap2:m2_crtn.o%s} \ -%{mmap3:m3_crtn.o%s} \ -%{mmap4:m4_crtn.o%s} \ -%{!mmap*: %{!ifile*: m4_crtn.o%s} %{ifile*: \ -%eA -ifile option requires a -map option}}" - - -/* Tell gcc where to look for the startfile */ -#define STANDARD_STARTFILE_PREFIX "/d1600/lib" - -/* Tell gcc where to look for it's executables */ -#define STANDARD_EXEC_PREFIX "/d1600/bin" - -/* Command line options to the AT&T assembler */ -#define ASM_SPEC "%{v:-V} %{g*:-g}" - -/* Command line options for the AT&T linker */ -#define LINK_SPEC "%{v:-V} %{minit:-i} \ -%{!ifile*:%{mmap1:-ifile m1_deflt.if%s} \ - %{mmap2:-ifile m2_deflt.if%s} \ - %{mmap3:-ifile m3_deflt.if%s} \ - %{mmap4:-ifile m4_deflt.if%s} \ - %{!mmap*:-ifile m4_deflt.if%s}} \ -%{ifile*} %{!r:-a}" - -/* Names to predefine in the preprocessor for this target machine. */ -#ifdef __MSDOS__ -#define CPP_PREDEFINES "-Ddsp1600 -DDSP1600 -DMSDOS" -#else -#define CPP_PREDEFINES "-Ddsp1600 -DDSP1600 -Ddsp1610 -DDSP1610" -#endif - -/* Run-time compilation parameters selecting different hardware subsets. */ - -extern int target_flags; - -/* Macros used in the machine description to test the flags. */ - -#define MASK_REGPARM 0x00000001 /* Pass parameters in registers */ -#define MASK_NEAR_CALL 0x00000002 /* The call is on the same 4k page */ -#define MASK_NEAR_JUMP 0x00000004 /* The jump is on the same 4k page */ -#define MASK_BMU 0x00000008 /* Use the 'bmu' shift instructions */ -#define MASK_OPTIMIZE_MEMORY 0x00000010 /* Optimize to conserve memory */ -#define MASK_OPTIMIZE_SPEED 0x00000020 /* Optimize for speed */ -#define MASK_MAP1 0x00000040 /* Link with map1 */ -#define MASK_MAP2 0x00000080 /* Link with map2 */ -#define MASK_MAP3 0x00000100 /* Link with map3 */ -#define MASK_MAP4 0x00000200 /* Link with map4 */ -#define MASK_YBASE_HIGH 0x00000400 /* The ybase register window starts high */ -#define MASK_INIT 0x00000800 /* Have the linker generate tables to - initialize data at startup */ -#define MASK_INLINE_MULT 0x00001000 /* Inline 32 bit multiplies */ -#define MASK_RESERVE_YBASE 0x00002000 /* Reserved the ybase registers */ - -/* Compile passing first two args in regs 0 and 1. - This exists only to test compiler features that will - be needed for RISC chips. It is not usable - and is not intended to be usable on this cpu. */ -#define TARGET_REGPARM (target_flags & MASK_REGPARM) - -/* The call is on the same 4k page, so instead of loading - the 'pt' register and branching, we can branch directly */ - -#define TARGET_NEAR_CALL (target_flags & MASK_NEAR_CALL) - -/* The jump is on the same 4k page, so instead of loading - the 'pt' register and branching, we can branch directly */ - -#define TARGET_NEAR_JUMP (target_flags & MASK_NEAR_JUMP) - -/* Generate shift instructions to use the 1610 Bit Manipulation - Unit. */ -#define TARGET_BMU (target_flags & MASK_BMU) - -/* Optimize to conserve memory */ -#define TARGET_OPTIMIZE_MEMORY (target_flags & MASK_OPTIMIZE_MEMORY) - -/* Optimize for maximum speed */ -#define TARGET_OPTIMIZE_SPEED (target_flags & MASK_OPTIMIZE_SPEED) - -#define TARGET_YBASE_HIGH (target_flags & MASK_YBASE_HIGH) - -/* Direct the linker to output extra info for initialized data */ -#define TARGET_MASK_INIT (target_flags & MASK_INIT) - -#define TARGET_INLINE_MULT (target_flags & MASK_INLINE_MULT) - -/* Reserve the ybase registers *(0) - *(31) */ -#define TARGET_RESERVE_YBASE (target_flags & MASK_RESERVE_YBASE) - -/* Macro to define tables used to set the flags. - This is a list in braces of pairs in braces, - each pair being { "NAME", VALUE } - where VALUE is the bits to set or minus the bits to clear. - An empty string NAME is used to identify the default VALUE. */ - - -#define TARGET_SWITCHES \ - { \ - { "regparm", MASK_REGPARM}, \ - { "no-regparm", -MASK_REGPARM}, \ - { "no-near-call", -MASK_NEAR_CALL}, \ - { "near-jump", MASK_NEAR_JUMP}, \ - { "no-near-jump", -MASK_NEAR_JUMP}, \ - { "bmu", MASK_BMU}, \ - { "no-bmu", -MASK_BMU}, \ - { "Om", MASK_OPTIMIZE_MEMORY}, \ - { "Os", MASK_OPTIMIZE_SPEED}, \ - { "map1", MASK_MAP1}, \ - { "map2", MASK_MAP2}, \ - { "map3", MASK_MAP3}, \ - { "map4", MASK_MAP4}, \ - { "ybase-high", MASK_YBASE_HIGH}, \ - { "init", MASK_INIT}, \ - { "inline-mult", MASK_INLINE_MULT}, \ - { "reserve-ybase", MASK_RESERVE_YBASE}, \ - { "", TARGET_DEFAULT} \ - } - -/* Default target_flags if no switches are specified */ -#ifndef TARGET_DEFAULT -#define TARGET_DEFAULT MASK_OPTIMIZE_MEMORY|MASK_REGPARM|MASK_YBASE_HIGH -#endif - -/* This macro is similar to `TARGET_SWITCHES' but defines names of - command options that have values. Its definition is an - initializer with a subgrouping for each command option. - - Each subgrouping contains a string constant, that defines the - fixed part of the option name, and the address of a variable. - The variable, type `char *', is set to the variable part of the - given option if the fixed part matches. The actual option name - is made by appending `-m' to the specified name. - - Here is an example which defines `-mshort-data-NUMBER'. If the - given option is `-mshort-data-512', the variable `m88k_short_data' - will be set to the string `"512"'. - - extern char *m88k_short_data; - #define TARGET_OPTIONS { { "short-data-", &m88k_short_data } } */ - -#define TARGET_OPTIONS \ -{ \ - { "text=", &text_seg_name }, \ - { "data=", &data_seg_name }, \ - { "bss=", &bss_seg_name }, \ - { "const=", &const_seg_name }, \ - { "chip=", &chip_name } \ -} - -/* Sometimes certain combinations of command options do not make sense - on a particular target machine. You can define a macro - `OVERRIDE_OPTIONS' to take account of this. This macro, if - defined, is executed once just after all the command options have - been parsed. */ - -#define OVERRIDE_OPTIONS override_options () - -#define OPTIMIZATION_OPTIONS(LEVEL) \ -{ \ - flag_gnu_linker = FALSE; \ - \ - if (LEVEL) \ - { \ - flag_omit_frame_pointer = TRUE; \ - flag_thread_jumps = TRUE; \ - } \ - \ - if (LEVEL >= 2) \ - { \ - flag_strength_reduce = TRUE; \ - flag_cse_follow_jumps = TRUE; \ - flag_cse_skip_blocks = TRUE; \ - flag_expensive_optimizations = TRUE; \ - flag_rerun_cse_after_loop = TRUE; \ - } \ - \ - if (LEVEL >= 3) \ - { \ - flag_inline_functions = 1; \ - } \ -} - -/* STORAGE LAYOUT */ - -/* Define if you don't want extended real, but do want to use the - software floating point emulator for REAL_ARITHMETIC and - decimal <-> binary conversion. */ -#define REAL_ARITHMETIC - -/* Define this if most significant bit is lowest numbered - in instructions that operate on numbered bit-fields. - */ -#define BITS_BIG_ENDIAN 1 - -/* Define this if most significant byte of a word is the lowest numbered. - We define big-endian, but since the 1600 series cannot address bytes - it does not matter. */ -#define BYTES_BIG_ENDIAN 1 - -/* Define this if most significant word of a multiword number is numbered. - For the 1600 we can decide arbitrarily since there are no machine instructions for them. */ -#define WORDS_BIG_ENDIAN 1 - -/* number of bits in an addressable storage unit */ -#define BITS_PER_UNIT 16 - -/* Width in bits of a "word", which is the contents of a machine register. - Note that this is not necessarily the width of data type `int'; - if using 16-bit ints on a 68000, this would still be 32. - But on a machine with 16-bit registers, this would be 16. */ -#define BITS_PER_WORD 16 - -/* Maximum number of bits in a word. */ -#define MAX_BITS_PER_WORD 16 - -/* Width of a word, in units (bytes). */ -#define UNITS_PER_WORD 1 - -/* Width in bits of a pointer. - See also the macro `Pmode' defined below. */ -#define POINTER_SIZE 16 - -/* Allocation boundary (in *bits*) for storing pointers in memory. */ -#define POINTER_BOUNDARY 16 - -/* Allocation boundary (in *bits*) for storing arguments in argument list. */ -#define PARM_BOUNDARY 16 - -/* Boundary (in *bits*) on which stack pointer should be aligned. */ -#define STACK_BOUNDARY 16 - -/* Allocation boundary (in *bits*) for the code of a function. */ -#define FUNCTION_BOUNDARY 16 - -/* Biggest alignment that any data type can require on this machine, in bits. */ -#define BIGGEST_ALIGNMENT 16 - -/* Biggest alignment that any structure field can require on this machine, in bits */ -#define BIGGEST_FIELD_ALIGNMENT 16 - -/* Alignment of field after `int : 0' in a structure. */ -#define EMPTY_FIELD_BOUNDARY 16 - -/* Number of bits which any structure or union's size must be a multiple of. Each structure - or union's size is rounded up to a multiple of this */ -#define STRUCTURE_SIZE_BOUNDARY 16 - -/* Define this if move instructions will actually fail to work - when given unaligned data. */ -#define STRICT_ALIGNMENT 1 - -/* An integer expression for the size in bits of the largest integer machine mode that - should actually be used. All integer machine modes of this size or smaller can be - used for structures and unions with the appropriate sizes. */ -#define MAX_FIXED_MODE_SIZE 32 - -/* LAYOUT OF SOURCE LANGUAGE DATA TYPES */ - -#define CHAR_TYPE_SIZE 16 -#define SHORT_TYPE_SIZE 16 -#define INT_TYPE_SIZE 16 -#define LONG_TYPE_SIZE 32 -#define LONG_LONG_TYPE_SIZE 32 -#define FLOAT_TYPE_SIZE 32 -#define DOUBLE_TYPE_SIZE 32 -#define LONG_DOUBLE_TYPE_SIZE 32 - -/* An expression whose value is 1 or 0, according to whether the type char should be - signed or unsigned by default. */ - -#define DEFAULT_SIGNED_CHAR 1 - -/* A C expression to determine whether to give an enum type only as many bytes - as it takes to represent the range of possible values of that type. A nonzero - value means to do that; a zero value means all enum types should be allocated - like int. */ - -#define DEFAULT_SHORT_ENUMS 0 - -/* A C expression for a string describing the name of the data type to use for - size values. */ - -#define SIZE_TYPE "long unsigned int" - -/* A C expression for a string describing the name of the datat type to use for the - result of subtracting two pointers */ - -#define PTRDIFF_TYPE "long int" - -#define TARGET_BELL '\a' -#define TARGET_BS '\b' -#define TARGET_TAB '\t' -#define TARGET_NEWLINE '\n' -#define TARGET_VT '\v' -#define TARGET_FF '\f' -#define TARGET_CR '\r' - - -/* REGISTER USAGE. */ - -#define ALL_16_BIT_REGISTERS 1 - -/* Number of actual hardware registers. - The hardware registers are assigned numbers for the compiler - from 0 to FIRST_PSEUDO_REGISTER-1 */ - -#define FIRST_PSEUDO_REGISTER REG_YBASE31 + 1 - -/* 1 for registers that have pervasive standard uses - and are not available for the register allocator. - - The registers are layed out as follows: - - {a0,a0l,a1,a1l,x,y,yl,p,pl} - Data Arithmetic Unit - {r0,r1,r2,r3,j,k,ybase} - Y Space Address Arithmetic Unit - {pt} - X Space Address Arithmetic Unit - {ar0,ar1,ar2,ar3} - Bit Manipulation UNit - {pr} - Return Address Register - - We reserve r2 for the Stack Pointer. - We specify r3 for the Frame Pointer but allow the compiler - to omit it when possible since we have so few pointer registers. */ - -#define REG_A0 0 -#define REG_A0L 1 -#define REG_A1 2 -#define REG_A1L 3 -#define REG_X 4 -#define REG_Y 5 -#define REG_YL 6 -#define REG_PROD 7 -#define REG_PRODL 8 -#define REG_R0 9 -#define REG_R1 10 -#define REG_R2 11 -#define REG_R3 12 -#define REG_J 13 -#define REG_K 14 -#define REG_YBASE 15 -#define REG_PT 16 -#define REG_AR0 17 -#define REG_AR1 18 -#define REG_AR2 19 -#define REG_AR3 20 -#define REG_C0 21 -#define REG_C1 22 -#define REG_C2 23 -#define REG_PR 24 -#define REG_RB 25 -#define REG_YBASE0 26 -#define REG_YBASE1 27 -#define REG_YBASE2 28 -#define REG_YBASE3 29 -#define REG_YBASE4 30 -#define REG_YBASE5 31 -#define REG_YBASE6 32 -#define REG_YBASE7 33 -#define REG_YBASE8 34 -#define REG_YBASE9 35 -#define REG_YBASE10 36 -#define REG_YBASE11 37 -#define REG_YBASE12 38 -#define REG_YBASE13 39 -#define REG_YBASE14 40 -#define REG_YBASE15 41 -#define REG_YBASE16 42 -#define REG_YBASE17 43 -#define REG_YBASE18 44 -#define REG_YBASE19 45 -#define REG_YBASE20 46 -#define REG_YBASE21 47 -#define REG_YBASE22 48 -#define REG_YBASE23 49 -#define REG_YBASE24 50 -#define REG_YBASE25 51 -#define REG_YBASE26 52 -#define REG_YBASE27 53 -#define REG_YBASE28 54 -#define REG_YBASE29 55 -#define REG_YBASE30 56 -#define REG_YBASE31 57 - -/* Do we have a accumulator register? */ -#define IS_ACCUM_REG(REGNO) ((REGNO) >= REG_A0 && (REGNO) <= REG_A1L) -#define IS_ACCUM_LOW_REG(REGNO) ((REGNO) == REG_A0L || (REGNO) == REG_A1L) - -/* Do we have a virtual ybase register */ -#define IS_YBASE_REGISTER_WINDOW(REGNO) ((REGNO) >= REG_YBASE0 && (REGNO) <= REG_YBASE31) - -#define IS_ADDRESS_REGISTER(REGNO) ((REGNO) >= REG_R0 && (REGNO) <= REG_R3) - -#define FIXED_REGISTERS \ -{0, 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 1, 0, 0, 1, \ - 1, \ - 0, 0, 0, 0, \ - 1, 1, 1, \ - 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0} - -/* 1 for registers not available across function calls. - These must include the FIXED_REGISTERS and also any - registers that can be used without being saved. - The latter must include the registers where values are returned - and the register where structure-value addresses are passed. - On the 1610 'a0' holds return values from functions. 'r0' holds - structure-value addresses. - - In addition we don't save either j, k, ybase or any of the - bit manipulation registers. */ - - -#define CALL_USED_REGISTERS \ -{1, 1, 1, 1, 0, 1, 1, 1, 1, \ - 1, 0, 0, 1, 1, 1, 1, \ - 1, \ - 0, 0, 1, 1, \ - 1, 1, 1, \ - 0, 1, \ - 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0} - -/* List the order in which to allocate registers. Each register must be - listed once, even those in FIXED_REGISTERS. - - We allocate in the following order: - */ - -#define REG_ALLOC_ORDER \ -{ REG_R0, REG_R1, REG_R2, REG_PROD, REG_Y, REG_X, \ - REG_PRODL, REG_YL, REG_AR0, REG_AR1, \ - REG_RB, REG_A0, REG_A1, REG_A0L, \ - REG_A1L, REG_AR2, REG_AR3, \ - REG_YBASE, REG_J, REG_K, REG_PR, REG_PT, REG_C0, \ - REG_C1, REG_C2, REG_R3, \ - REG_YBASE0, REG_YBASE1, REG_YBASE2, REG_YBASE3, \ - REG_YBASE4, REG_YBASE5, REG_YBASE6, REG_YBASE7, \ - REG_YBASE8, REG_YBASE9, REG_YBASE10, REG_YBASE11, \ - REG_YBASE12, REG_YBASE13, REG_YBASE14, REG_YBASE15, \ - REG_YBASE16, REG_YBASE17, REG_YBASE18, REG_YBASE19, \ - REG_YBASE20, REG_YBASE21, REG_YBASE22, REG_YBASE23, \ - REG_YBASE24, REG_YBASE25, REG_YBASE26, REG_YBASE27, \ - REG_YBASE28, REG_YBASE29, REG_YBASE30, REG_YBASE31 } - -/* Zero or more C statements that may conditionally modify two - variables `fixed_regs' and `call_used_regs' (both of type `char - []') after they have been initialized from the two preceding - macros. - - This is necessary in case the fixed or call-clobbered registers - depend on target flags. - - You need not define this macro if it has no work to do. - - If the usage of an entire class of registers depends on the target - flags, you may indicate this to GCC by using this macro to modify - `fixed_regs' and `call_used_regs' to 1 for each of the registers in - the classes which should not be used by GCC. Also define the macro - `REG_CLASS_FROM_LETTER' to return `NO_REGS' if it is called with a - letter for a class that shouldn't be used. - - (However, if this class is not included in `GENERAL_REGS' and all - of the insn patterns whose constraints permit this class are - controlled by target switches, then GCC will automatically avoid - using these registers when the target switches are opposed to - them.) If the user tells us there is no BMU, we can't use - ar0-ar3 for register allocation */ - -#define CONDITIONAL_REGISTER_USAGE \ -do \ - { \ - if (!TARGET_BMU) \ - { \ - int regno; \ - \ - for (regno = REG_AR0; regno <= REG_AR3; regno++) \ - fixed_regs[regno] = call_used_regs[regno] = 1; \ - } \ - if (TARGET_RESERVE_YBASE) \ - { \ - int regno; \ - \ - for (regno = REG_YBASE0; regno <= REG_YBASE31; regno++) \ - fixed_regs[regno] = call_used_regs[regno] = 1; \ - } \ - } \ -while (0) - -/* Determine which register classes are very likely used by spill registers. - local-alloc.c won't allocate pseudos that have these classes as their - preferred class unless they are "preferred or nothing". */ - -#define CLASS_LIKELY_SPILLED_P(CLASS) \ - ((CLASS) != ALL_REGS && (CLASS) != YBASE_VIRT_REGS) - -/* Return number of consecutive hard regs needed starting at reg REGNO - to hold something of mode MODE. - This is ordinarily the length in words of a value of mode MODE - but can be less for certain modes in special long registers. */ - -#define HARD_REGNO_NREGS(REGNO, MODE) \ - (GET_MODE_SIZE(MODE)) - -/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */ - -#define HARD_REGNO_MODE_OK(REGNO, MODE) hard_regno_mode_ok(REGNO, MODE) - -/* Value is 1 if it is a good idea to tie two pseudo registers - when one has mode MODE1 and one has mode MODE2. - If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, - for any hard reg, then this must be 0 for correct output. */ -#define MODES_TIEABLE_P(MODE1, MODE2) \ - (((MODE1) == (MODE2)) || \ - (GET_MODE_CLASS((MODE1)) == MODE_FLOAT) \ - == (GET_MODE_CLASS((MODE2)) == MODE_FLOAT)) - -/* Specify the registers used for certain standard purposes. - The values of these macros are register numbers. */ - -/* DSP1600 pc isn't overloaded on a register. */ -/* #define PC_REGNUM */ - -/* Register to use for pushing function arguments. - This is r3 in our case */ -#define STACK_POINTER_REGNUM REG_R3 - -/* Base register for access to local variables of the function. - This is r2 in our case */ -#define FRAME_POINTER_REGNUM REG_R2 - -/* We can debug without the frame pointer */ -#define CAN_DEBUG_WITHOUT_FP 1 - -/* The 1610 saves the return address in this register */ -#define RETURN_ADDRESS_REGNUM REG_PR - -/* Base register for access to arguments of the function. */ -#define ARG_POINTER_REGNUM FRAME_POINTER_REGNUM - -/* Register in which static-chain is passed to a function. */ - -#define STATIC_CHAIN_REGNUM 4 - -/* Register in which address to store a structure value - is passed to a function. This is 'r0' in our case */ -#define STRUCT_VALUE_REGNUM REG_R0 - -/* Define the classes of registers for register constraints in the - machine description. Also define ranges of constants. - - One of the classes must always be named ALL_REGS and include all hard regs. - If there is more than one class, another class must be named NO_REGS - and contain no registers. - - The name GENERAL_REGS must be the name of a class (or an alias for - another name such as ALL_REGS). This is the class of registers - that is allowed by "g" or "r" in a register constraint. - Also, registers outside this class are allocated only when - instructions express preferences for them. - - The classes must be numbered in nondecreasing order; that is, - a larger-numbered class must never be contained completely - in a smaller-numbered class. - - For any two classes, it is very desirable that there be another - class that represents their union. */ - - -enum reg_class -{ - NO_REGS, - A0H_REG, - A0L_REG, - A0_REG, - A1H_REG, - ACCUM_HIGH_REGS, - A1L_REG, - ACCUM_LOW_REGS, - A1_REG, - ACCUM_REGS, - X_REG, - X_OR_ACCUM_LOW_REGS, - X_OR_ACCUM_REGS, - YH_REG, - YH_OR_ACCUM_HIGH_REGS, - X_OR_YH_REGS, - YL_REG, - YL_OR_ACCUM_LOW_REGS, - X_OR_YL_REGS, - X_OR_Y_REGS, - Y_REG, - ACCUM_OR_Y_REGS, - PH_REG, - X_OR_PH_REGS, - PL_REG, - PL_OR_ACCUM_LOW_REGS, - X_OR_PL_REGS, - YL_OR_PL_OR_ACCUM_LOW_REGS, - P_REG, - ACCUM_OR_P_REGS, - YL_OR_P_REGS, - ACCUM_LOW_OR_YL_OR_P_REGS, - Y_OR_P_REGS, - ACCUM_Y_OR_P_REGS, - NO_FRAME_Y_ADDR_REGS, - Y_ADDR_REGS, - ACCUM_LOW_OR_Y_ADDR_REGS, - ACCUM_OR_Y_ADDR_REGS, - X_OR_Y_ADDR_REGS, - Y_OR_Y_ADDR_REGS, - P_OR_Y_ADDR_REGS, - NON_HIGH_YBASE_ELIGIBLE_REGS, - YBASE_ELIGIBLE_REGS, - J_REG, - J_OR_DAU_16_BIT_REGS, - BMU_REGS, - NOHIGH_NON_ADDR_REGS, - NON_ADDR_REGS, - SLOW_MEM_LOAD_REGS, - NOHIGH_NON_YBASE_REGS, - NO_ACCUM_NON_YBASE_REGS, - NON_YBASE_REGS, - YBASE_VIRT_REGS, - ACCUM_LOW_OR_YBASE_REGS, - ACCUM_OR_YBASE_REGS, - X_OR_YBASE_REGS, - Y_OR_YBASE_REGS, - ACCUM_LOW_YL_PL_OR_YBASE_REGS, - P_OR_YBASE_REGS, - ACCUM_Y_P_OR_YBASE_REGS, - Y_ADDR_OR_YBASE_REGS, - YBASE_OR_NOHIGH_YBASE_ELIGIBLE_REGS, - YBASE_OR_YBASE_ELIGIBLE_REGS, - NO_HIGH_ALL_REGS, - ALL_REGS, - LIM_REG_CLASSES -}; - -/* GENERAL_REGS must be the name of a register class */ -#define GENERAL_REGS ALL_REGS - -#define N_REG_CLASSES (int) LIM_REG_CLASSES - -/* Give names of register classes as strings for dump file. */ - -#define REG_CLASS_NAMES \ -{ \ - "NO_REGS", \ - "A0H_REG", \ - "A0L_REG", \ - "A0_REG", \ - "A1H_REG", \ - "ACCUM_HIGH_REGS", \ - "A1L_REG", \ - "ACCUM_LOW_REGS", \ - "A1_REG", \ - "ACCUM_REGS", \ - "X_REG", \ - "X_OR_ACCUM_LOW_REGS", \ - "X_OR_ACCUM_REGS", \ - "YH_REG", \ - "YH_OR_ACCUM_HIGH_REGS", \ - "X_OR_YH_REGS", \ - "YL_REG", \ - "YL_OR_ACCUM_LOW_REGS", \ - "X_OR_YL_REGS", \ - "X_OR_Y_REGS", \ - "Y_REG", \ - "ACCUM_OR_Y_REGS", \ - "PH_REG", \ - "X_OR_PH_REGS", \ - "PL_REG", \ - "PL_OR_ACCUM_LOW_REGS", \ - "X_OR_PL_REGS", \ - "PL_OR_YL_OR_ACCUM_LOW_REGS", \ - "P_REG", \ - "ACCUM_OR_P_REGS", \ - "YL_OR_P_REGS", \ - "ACCUM_LOW_OR_YL_OR_P_REGS", \ - "Y_OR_P_REGS", \ - "ACCUM_Y_OR_P_REGS", \ - "NO_FRAME_Y_ADDR_REGS", \ - "Y_ADDR_REGS", \ - "ACCUM_LOW_OR_Y_ADDR_REGS", \ - "ACCUM_OR_Y_ADDR_REGS", \ - "X_OR_Y_ADDR_REGS", \ - "Y_OR_Y_ADDR_REGS", \ - "P_OR_Y_ADDR_REGS", \ - "NON_HIGH_YBASE_ELIGIBLE_REGS", \ - "YBASE_ELIGIBLE_REGS", \ - "J_REG", \ - "J_OR_DAU_16_BIT_REGS", \ - "BMU_REGS", \ - "NOHIGH_NON_ADDR_REGS", \ - "NON_ADDR_REGS", \ - "SLOW_MEM_LOAD_REGS", \ - "NOHIGH_NON_YBASE_REGS", \ - "NO_ACCUM_NON_YBASE_REGS", \ - "NON_YBASE_REGS", \ - "YBASE_VIRT_REGS", \ - "ACCUM_LOW_OR_YBASE_REGS", \ - "ACCUM_OR_YBASE_REGS", \ - "X_OR_YBASE_REGS", \ - "Y_OR_YBASE_REGS", \ - "ACCUM_LOW_YL_PL_OR_YBASE_REGS", \ - "P_OR_YBASE_REGS", \ - "ACCUM_Y_P_OR_YBASE_REGS", \ - "Y_ADDR_OR_YBASE_REGS", \ - "YBASE_OR_NOHIGH_YBASE_ELIGIBLE_REGS", \ - "YBASE_OR_YBASE_ELIGIBLE_REGS", \ - "NO_HIGH_ALL_REGS", \ - "ALL_REGS" \ -} - -/* Define which registers fit in which classes. - This is an initializer for a vector of HARD_REG_SET - of length N_REG_CLASSES. */ - -#define REG_CLASS_CONTENTS \ -{ \ - {0x00000000, 0x00000000}, /* no reg */ \ - {0x00000001, 0x00000000}, /* a0h */ \ - {0x00000002, 0x00000000}, /* a0l */ \ - {0x00000003, 0x00000000}, /* a0h:a0l */ \ - {0x00000004, 0x00000000}, /* a1h */ \ - {0x00000005, 0x00000000}, /* accum high */ \ - {0x00000008, 0x00000000}, /* a1l */ \ - {0x0000000A, 0x00000000}, /* accum low */ \ - {0x0000000c, 0x00000000}, /* a1h:a1l */ \ - {0x0000000f, 0x00000000}, /* accum regs */ \ - {0x00000010, 0x00000000}, /* x reg */ \ - {0x0000001A, 0x00000000}, /* x & accum_low_regs */ \ - {0x0000001f, 0x00000000}, /* x & accum regs */ \ - {0x00000020, 0x00000000}, /* y high */ \ - {0x00000025, 0x00000000}, /* yh, accum high */ \ - {0x00000030, 0x00000000}, /* x & yh */ \ - {0x00000040, 0x00000000}, /* y low */ \ - {0x0000004A, 0x00000000}, /* y low, accum_low */ \ - {0x00000050, 0x00000000}, /* x & yl */ \ - {0x00000060, 0x00000000}, /* yl:yh */ \ - {0x00000070, 0x00000000}, /* x, yh,a nd yl */ \ - {0x0000006F, 0x00000000}, /* accum, y */ \ - {0x00000080, 0x00000000}, /* p high */ \ - {0x00000090, 0x00000000}, /* x & ph */ \ - {0x00000100, 0x00000000}, /* p low */ \ - {0x0000010A, 0x00000000}, /* p_low and accum_low */ \ - {0x00000110, 0x00000000}, /* x & pl */ \ - {0x0000014A, 0x00000000}, /* pl,yl,a1l,a0l */ \ - {0x00000180, 0x00000000}, /* pl:ph */ \ - {0x0000018F, 0x00000000}, /* accum, p */ \ - {0x000001C0, 0x00000000}, /* pl:ph and yl */ \ - {0x000001CA, 0x00000000}, /* pl:ph, yl, a0l, a1l */ \ - {0x000001E0, 0x00000000}, /* y or p */ \ - {0x000001EF, 0x00000000}, /* accum, y or p */ \ - {0x00000E00, 0x00000000}, /* r0-r2 */ \ - {0x00001E00, 0x00000000}, /* r0-r3 */ \ - {0x00001E0A, 0x00000000}, /* r0-r3, accum_low */ \ - {0x00001E0F, 0x00000000}, /* accum,r0-r3 */ \ - {0x00001E10, 0x00000000}, /* x,r0-r3 */ \ - {0x00001E60, 0x00000000}, /* y,r0-r3 */ \ - {0x00001F80, 0x00000000}, /* p,r0-r3 */ \ - {0x00001FDA, 0x00000000}, /* ph:pl, r0-r3, x,a0l,a1l */ \ - {0x00001fff, 0x00000000}, /* accum,x,y,p,r0-r3 */ \ - {0x00002000, 0x00000000}, /* j */ \ - {0x00002025, 0x00000000}, /* j, yh, a1h, a0h */ \ - {0x001E0000, 0x00000000}, /* ar0-ar3 */ \ - {0x03FFE1DA, 0x00000000}, /* non_addr except yh,a0h,a1h */ \ - {0x03FFE1FF, 0x00000000}, /* non_addr regs */ \ - {0x03FFFF8F, 0x00000000}, /* non ybase except yh, yl, and x */ \ - {0x03FFFFDA, 0x00000000}, /* non ybase regs except yh,a0h,a1h */ \ - {0x03FFFFF0, 0x00000000}, /* non ybase except a0,a0l,a1,a1l */ \ - {0x03FFFFFF, 0x00000000}, /* non ybase regs */ \ - {0xFC000000, 0x03FFFFFF}, /* virt ybase regs */ \ - {0xFC00000A, 0x03FFFFFF}, /* accum_low, virt ybase regs */ \ - {0xFC00000F, 0x03FFFFFF}, /* accum, virt ybase regs */ \ - {0xFC000010, 0x03FFFFFF}, /* x,virt ybase regs */ \ - {0xFC000060, 0x03FFFFFF}, /* y,virt ybase regs */ \ - {0xFC00014A, 0x03FFFFFF}, /* accum_low, yl, pl, ybase */ \ - {0xFC000180, 0x03FFFFFF}, /* p,virt ybase regs */ \ - {0xFC0001EF, 0x03FFFFFF}, /* accum,y,p,ybase regs */ \ - {0xFC001E00, 0x03FFFFFF}, /* r0-r3, ybase regs */ \ - {0xFC001FDA, 0x03FFFFFF}, /* r0-r3, pl:ph,yl,x,a1l,a0l */ \ - {0xFC001FFF, 0x03FFFFFF}, /* virt ybase, ybase eligible regs */ \ - {0xFCFFFFDA, 0x03FFFFFF}, /* all regs except yh,a0h,a1h */ \ - {0xFFFFFFFF, 0x03FFFFFF} /* all regs */ \ -} - - -/* The same information, inverted: - Return the class number of the smallest class containing - reg number REGNO. This could be a conditional expression - or could index an array. */ - -#define REGNO_REG_CLASS(REGNO) regno_reg_class(REGNO) - -/* The class value for index registers, and the one for base regs. */ - -#define INDEX_REG_CLASS NO_REGS -#define BASE_REG_CLASS Y_ADDR_REGS - -/* Get reg_class from a letter such as appears in the machine description. */ - -#define REG_CLASS_FROM_LETTER(C) \ - dsp16xx_reg_class_from_letter(C) - -#define SECONDARY_RELOAD_CLASS(CLASS, MODE, X) \ - secondary_reload_class(CLASS, MODE, X) - -/* When defined, the compiler allows registers explicitly used in the - rtl to be used as spill registers but prevents the compiler from - extending the lifetime of these registers. */ - -#define SMALL_REGISTER_CLASSES 1 - -/* Macros to check register numbers against specific register classes. */ - -/* These assume that REGNO is a hard or pseudo reg number. - They give nonzero only if REGNO is a hard reg of the suitable class - or a pseudo reg currently allocated to a suitable hard reg. - Since they use reg_renumber, they are safe only once reg_renumber - has been allocated, which happens in local-alloc.c. */ - -/* A C expression which is nonzero if register REGNO is suitable for use - as a base register in operand addresses. It may be either a suitable - hard register or a pseudo register that has been allocated such a - hard register. - - On the 1610 the Y address pointers can be used as a base registers */ -#define REGNO_OK_FOR_BASE_P(REGNO) \ -(((REGNO) >= REG_R0 && (REGNO) < REG_R3 + 1) || ((unsigned) reg_renumber[REGNO] >= REG_R0 \ - && (unsigned) reg_renumber[REGNO] < REG_R3 + 1)) - -#define REGNO_OK_FOR_YBASE_P(REGNO) \ - (((REGNO) == REG_YBASE) || ((unsigned) reg_renumber[REGNO] == REG_YBASE)) - -#define REGNO_OK_FOR_INDEX_P(REGNO) 0 - -#ifdef ALL_16_BIT_REGISTERS -#define IS_32_BIT_REG(REGNO) 0 -#else -#define IS_32_BIT_REG(REGNO) \ - ((REGNO) == REG_A0 || (REGNO) == REG_A1 || (REGNO) == REG_Y || (REGNO) == REG_PROD) -#endif - -/* Given an rtx X being reloaded into a reg required to be - in class CLASS, return the class of reg to actually use. - In general this is just CLASS; but on some machines - in some cases it is preferable to use a more restrictive class. - Also, we must ensure that a PLUS is reloaded either - into an accumulator or an address register. */ - -#define PREFERRED_RELOAD_CLASS(X,CLASS) preferred_reload_class (X, CLASS) - -/* A C expression that places additional restrictions on the register - class to use when it is necessary to be able to hold a value of - mode MODE in a reload register for which class CLASS would - ordinarily be used. - - Unlike `PREFERRED_RELOAD_CLASS', this macro should be used when - there are certain modes that simply can't go in certain reload - classes. - - The value is a register class; perhaps CLASS, or perhaps another, - smaller class. - - Don't define this macro unless the target machine has limitations - which require the macro to do something nontrivial. */ - -#if 0 -#define LIMIT_RELOAD_CLASS(MODE, CLASS) dsp16xx_limit_reload_class (MODE, CLASS) -#endif - -/* A C expression for the maximum number of consecutive registers of class CLASS - needed to hold a value of mode MODE */ -#define CLASS_MAX_NREGS(CLASS, MODE) \ - class_max_nregs(CLASS, MODE) - -/* The letters 'I' through 'P' in a register constraint string - can be used to stand for particular ranges of immediate operands. - This macro defines what the ranges are. - C is the letter, and VALUE is a constant value. - Return 1 if VALUE is in the range specified by C. - - For the 16xx, the following constraints are used: - 'I' requires a non-negative 16-bit value. - 'J' requires a non-negative 9-bit value - 'K' requires a constant 0 operand. - 'L' requires 16-bit value - 'M' 32-bit value -- low 16-bits zero - */ - -#define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X))) -#define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000) -#define SHORT_IMMEDIATE(X) (SHORT_INTVAL (INTVAL(X))) -#define SHORT_INTVAL(I) ((unsigned) (I) < 0x100) - -#define CONST_OK_FOR_LETTER_P(VALUE, C) \ - ((C) == 'I' ? (SMALL_INTVAL(VALUE)) \ - : (C) == 'J' ? (SHORT_INTVAL(VALUE)) \ - : (C) == 'K' ? ((VALUE) == 0) \ - : (C) == 'L' ? ! ((VALUE) & ~0x0000ffff) \ - : (C) == 'M' ? ! ((VALUE) & ~0xffff0000) \ - : (C) == 'N' ? ((VALUE) == -1 || (VALUE) == 1 || \ - (VALUE) == -2 || (VALUE) == 2) \ - : 0) - -#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 1 - -/* Optional extra constraints for this machine */ -#define EXTRA_CONSTRAINT(OP,C) \ - ((C) == 'R' ? symbolic_address_p (OP) \ - : 0) - -/* DESCRIBING STACK LAYOUT AND CALLING CONVENTIONS */ - -/* Define this if pushing a word on the stack - makes the stack pointer a smaller address. */ -/* #define STACK_GROWS_DOWNWARD */ - -/* Define this if the nominal address of the stack frame - is at the high-address end of the local variables; - that is, each additional local variable allocated - goes at a more negative offset in the frame. */ -/* #define FRAME_GROWS_DOWNWARD */ - -#define ARGS_GROW_DOWNWARD - -/* We use post decrement on the 1600 because there isn't - a pre-decrement addressing mode. This means that we - assume the stack pointer always points at the next - FREE location on the stack. */ -#define STACK_PUSH_CODE POST_INC - -/* Offset within stack frame to start allocating local variables at. - If FRAME_GROWS_DOWNWARD, this is the offset to the END of the - first local allocated. Otherwise, it is the offset to the BEGINNING - of the first local allocated. */ -#define STARTING_FRAME_OFFSET 0 - -/* Offset from the stack pointer register to the first - location at which outgoing arguments are placed. */ -#define STACK_POINTER_OFFSET (0) - -struct dsp16xx_frame_info -{ - unsigned long total_size; /* # bytes that the entire frame takes up */ - unsigned long var_size; /* # bytes that variables take up */ - unsigned long args_size; /* # bytes that outgoing arguments take up */ - unsigned long extra_size; /* # bytes of extra gunk */ - unsigned int reg_size; /* # bytes needed to store regs */ - long fp_save_offset; /* offset from vfp to store registers */ - unsigned long sp_save_offset; /* offset from new sp to store registers */ - int initialized; /* != 0 if frame size already calculated */ - int num_regs; /* number of registers saved */ - int function_makes_calls; /* Does the function make calls */ -}; - -extern struct dsp16xx_frame_info current_frame_info; - -/* If we generate an insn to push BYTES bytes, - this says how many the stack pointer really advances by. */ -/* #define PUSH_ROUNDING(BYTES) ((BYTES)) */ - -/* If defined, the maximum amount of space required for outgoing - arguments will be computed and placed into the variable - 'current_function_outgoing_args_size'. No space will be pushed - onto the stack for each call; instead, the function prologue should - increase the stack frame size by this amount. - - It is not proper to define both 'PUSH_ROUNDING' and - 'ACCUMULATE_OUTGOING_ARGS'. */ -#define ACCUMULATE_OUTGOING_ARGS - -/* Offset of first parameter from the argument pointer - register value. */ - -#define FIRST_PARM_OFFSET(FNDECL) (0) - -/* Value is 1 if returning from a function call automatically - pops the arguments described by the number-of-args field in the call. - FUNDECL is the declaration node of the function (as a tree), - FUNTYPE is the data type of the function (as a tree), - or for a library call it is an identifier node for the subroutine name. */ - -#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0 - -/* Define how to find the value returned by a function. - VALTYPE is the data type of the value (as a tree). - If the precise function being called is known, FUNC is its FUNCTION_DECL; - otherwise, FUNC is 0. On the 1610 all function return their values - in a0 (i.e. the upper 16 bits). If the return value is 32-bits the - entire register is significant. */ - -#define VALUE_REGNO(MODE) (REG_Y) - -#define FUNCTION_VALUE(VALTYPE, FUNC) \ - gen_rtx (REG, TYPE_MODE (VALTYPE), VALUE_REGNO(TYPE_MODE(VALTYPE))) - -/* Define how to find the value returned by a library function - assuming the value has mode MODE. */ -#define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, VALUE_REGNO(MODE)) - -/* 1 if N is a possible register number for a function value. */ -#define FUNCTION_VALUE_REGNO_P(N) ((N) == REG_Y) - - -/* Define where to put the arguments to a function. - Value is zero to push the argument on the stack, - or a hard register in which to store the argument. - - MODE is the argument's machine mode. - TYPE is the data type of the argument (as a tree). - This is null for libcalls where that information may - not be available. - CUM is a variable of type CUMULATIVE_ARGS which gives info about - the preceding args and about the function being called. - NAMED is nonzero if this argument is a named parameter - (otherwise it is an extra parameter matching an ellipsis). */ - -/* On the 1610 all args are pushed, except if -mregparm is specified - then the first two words of arguments are passed in a0, a1. */ -#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ - dsp16xx_function_arg (CUM, MODE, TYPE, NAMED) - -/* Define the first register to be used for argument passing */ -#define FIRST_REG_FOR_FUNCTION_ARG REG_Y - -/* Define the profitability of saving registers around calls. - NOTE: For now we turn this off because of a bug in the - caller-saves code and also because i'm not sure it is helpful - on the 1610. */ - -#define CALLER_SAVE_PROFITABLE(REFS,CALLS) 0 - -/* This indicates that an argument is to be passed with an invisible reference - (i.e., a pointer to the object is passed). - - On the dsp16xx, we do this if it must be passed on the stack. */ - -#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) \ - (MUST_PASS_IN_STACK (MODE, TYPE)) - -/* For an arg passed partly in registers and partly in memory, - this is the number of registers used. - For args passed entirely in registers or entirely in memory, zero. */ - -#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) (0) - -/* Define a data type for recording info about an argument list - during the scan of that argument list. This data type should - hold all necessary information about the function itself - and about the args processed so far, enough to enable macros - such as FUNCTION_ARG to determine where the next arg should go. */ -#define CUMULATIVE_ARGS int - -/* Initialize a variable CUM of type CUMULATIVE_ARGS - for a call to a function whose data type is FNTYPE. - For a library call, FNTYPE is 0. */ -#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT) ((CUM) = 0) - -/* Update the data in CUM to advance over an argument - of mode MODE and data type TYPE. - (TYPE is null for libcalls where that information may not be available.) */ - -#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ - dsp16xx_function_arg_advance (&CUM, MODE,TYPE, NAMED) - -/* 1 if N is a possible register number for function argument passing. */ -#define FUNCTION_ARG_REGNO_P(N) \ - ((N) == REG_Y || (N) == REG_YL || (N) == REG_PROD || (N) == REG_PRODL) - -/* This macro generates the assembly code for function entry. - FILE is a stdio stream to output the code to. - SIZE is an int: how many units of temporary storage to allocate. - Refer to the array `regs_ever_live' to determine which registers - to save; `regs_ever_live[I]' is nonzero if register number I - is ever used in the function. This macro is responsible for - knowing which registers should not be saved even if used. */ - -#define FUNCTION_PROLOGUE(FILE, SIZE) function_prologue(FILE, SIZE) - -/* Output assembler code to FILE to increment profiler label # LABELNO - for profiling a function entry. */ - -#define FUNCTION_PROFILER(FILE, LABELNO) fatal("Profiling not implemented yet.") - -/* Output assembler code to FILE to initialize this source file's - basic block profiling info, if that has not already been done. */ -#define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) fatal("Profiling not implemented yet.") - -/* Output assembler code to FILE to increment the entry-count for - the BLOCKNO'th basic block in this source file. */ -#define BLOCK_PROFILER(FILE, BLOCKNO) fatal("Profiling not implemented yet.") - - -/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, - the stack pointer does not matter. The value is tested only in - functions that have frame pointers. - No definition is equivalent to always zero. */ - -#define EXIT_IGNORE_STACK (0) - -#define TRAMPOLINE_TEMPLATE(FILE) fatal ("Trampolines not yet implemented"); - -/* Length in units of the trampoline for entering a nested function. - This is a dummy value */ - -#define TRAMPOLINE_SIZE 20 - -/* Emit RTL insns to initialize the variable parts of a trampoline. - FNADDR is an RTX for the address of the function's pure code. - CXT is an RTX for the static chain value for the function. */ - -#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ - fatal ("Trampolines not yet implemented"); - -/* This macro generates the assembly code for function exit, - on machines that need it. If FUNCTION_EPILOGUE is not defined - then individual return instructions are generated for each - return statement. Args are same as for FUNCTION_PROLOGUE. - - The function epilogue should not depend on the current stack pointer! - It should use the frame pointer only. This is mandatory because - of alloca; we also take advantage of it to omit stack adjustments - before returning. */ - -#define FUNCTION_EPILOGUE(FILE, SIZE) function_epilogue(FILE, SIZE) - -/* A C expression which is nonzero if a function must have and use a - frame pointer. If its value is nonzero the functions will have a - frame pointer. */ -#define FRAME_POINTER_REQUIRED (current_function_calls_alloca) - -/* A C statement to store in the variable 'DEPTH' the difference - between the frame pointer and the stack pointer values immediately - after the function prologue. */ -#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) \ -{ (DEPTH) = initial_frame_pointer_offset(); \ -} - -/* IMPLICIT CALLS TO LIBRARY ROUTINES */ - -#define ADDHF3_LIBCALL "__Emulate_addhf3" -#define SUBHF3_LIBCALL "__Emulate_subhf3" -#define MULHF3_LIBCALL "__Emulate_mulhf3" -#define DIVHF3_LIBCALL "__Emulate_divhf3" -#define CMPHF3_LIBCALL "__Emulate_cmphf3" -#define FIXHFHI2_LIBCALL "__Emulate_fixhfhi2" -#define FLOATHIHF2_LIBCALL "__Emulate_floathihf2" -#define NEGHF2_LIBCALL "__Emulate_neghf2" - -#define UMULHI3_LIBCALL "__Emulate_umulhi3" -#define MULHI3_LIBCALL "__Emulate_mulhi3" -#define UDIVQI3_LIBCALL "__Emulate_udivqi3" -#define UDIVHI3_LIBCALL "__Emulate_udivhi3" -#define DIVQI3_LIBCALL "__Emulate_divqi3" -#define DIVHI3_LIBCALL "__Emulate_divhi3" -#define MODQI3_LIBCALL "__Emulate_modqi3" -#define MODHI3_LIBCALL "__Emulate_modhi3" -#define UMODQI3_LIBCALL "__Emulate_umodqi3" -#define UMODHI3_LIBCALL "__Emulate_umodhi3" -#define ASHRHI3_LIBCALL "__Emulate_ashrhi3" -#define LSHRHI3_LIBCALL "__Emulate_lshrhi3" -#define ASHLHI3_LIBCALL "__Emulate_ashlhi3" -#define LSHLHI3_LIBCALL "__Emulate_lshlhi3" /* NOT USED */ - -/* Define this macro if calls to the ANSI C library functions memcpy and - memset should be generated instead of the BSD function bcopy & bzero. */ -#define TARGET_MEM_FUNCTIONS - - -/* ADDRESSING MODES */ - -/* The 1610 has post-increment and decrement, but no pre-modify */ -#define HAVE_POST_INCREMENT -#define HAVE_POST_DECREMENT - -/* #define HAVE_PRE_DECREMENT */ -/* #define HAVE_PRE_INCREMENT */ - -/* Recognize any constant value that is a valid address. */ -#define CONSTANT_ADDRESS_P(X) CONSTANT_P (X) - -/* Maximum number of registers that can appear in a valid memory address. */ -#define MAX_REGS_PER_ADDRESS 1 - -/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx - and check its validity for a certain class. - We have two alternate definitions for each of them. - The usual definition accepts all pseudo regs; the other rejects - them unless they have been allocated suitable hard regs. - The symbol REG_OK_STRICT causes the latter definition to be used. - - Most source files want to accept pseudo regs in the hope that - they will get allocated to the class that the insn wants them to be in. - Source files for reload pass need to be strict. - After reload, it makes no difference, since pseudo regs have - been eliminated by then. */ - -#ifndef REG_OK_STRICT - -/* Nonzero if X is a hard reg that can be used as an index - or if it is a pseudo reg. */ -#define REG_OK_FOR_INDEX_P(X) 0 - -/* Nonzero if X is a hard reg that can be used as a base reg - or if it is a pseudo reg. */ -#define REG_OK_FOR_BASE_P(X) \ - ((REGNO (X) >= REG_R0 && REGNO (X) < REG_R3 + 1 ) \ - || (REGNO (X) >= FIRST_PSEUDO_REGISTER)) - -/* Nonzero if X is the 'ybase' register */ -#define REG_OK_FOR_YBASE_P(X) \ - (REGNO(X) == REG_YBASE || (REGNO (X) >= FIRST_PSEUDO_REGISTER)) -#else - -/* Nonzero if X is a hard reg that can be used as an index. */ -#define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) - -/* Nonzero if X is a hard reg that can be used as a base reg. */ -#define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) - -/* Nonzero if X is the 'ybase' register */ -#define REG_OK_FOR_YBASE_P(X) REGNO_OK_FOR_YBASE_P (REGNO(X)) - -#endif - -/* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression - that is a valid memory address for an instruction. - The MODE argument is the machine mode for the MEM expression - that wants to use this address. - - On the 1610, the actual legitimate addresses must be N (N must fit in - 5 bits), *rn (register indirect), *rn++, or *rn-- */ - -#define INT_FITS_5_BITS(I) ((unsigned long) (I) < 0x20) -#define INT_FITS_16_BITS(I) ((unsigned long) (I) < 0x10000) -#define YBASE_CONST_OFFSET(I) ((I) >= -31 && (I) <= 0) -#define YBASE_OFFSET(X) (GET_CODE (X) == CONST_INT && YBASE_CONST_OFFSET (INTVAL(X))) - -#define FITS_16_BITS(X) (GET_CODE (X) == CONST_INT && INT_FITS_16_BITS(INTVAL(X))) -#define FITS_5_BITS(X) (GET_CODE (X) == CONST_INT && INT_FITS_5_BITS(INTVAL(X))) -#define ILLEGAL_HIMODE_ADDR(MODE, CONST) ((MODE) == HImode && CONST == -31) - -#define INDIRECTABLE_ADDRESS_P(X) \ - ((GET_CODE(X) == REG && REG_OK_FOR_BASE_P(X)) \ - || ((GET_CODE(X) == POST_DEC || GET_CODE(X) == POST_INC) \ - && REG_P(XEXP(X,0)) && REG_OK_FOR_BASE_P(XEXP(X,0))) \ - || (GET_CODE(X) == CONST_INT && (unsigned long) (X) < 0x20)) - - -#define INDEXABLE_ADDRESS_P(X,MODE) \ - ((GET_CODE(X) == PLUS && GET_CODE (XEXP (X,0)) == REG && \ - XEXP(X,0) == stack_pointer_rtx && YBASE_OFFSET(XEXP(X,1)) && \ - !ILLEGAL_HIMODE_ADDR(MODE, INTVAL(XEXP(X,1)))) || \ - (GET_CODE(X) == PLUS && GET_CODE (XEXP (X,1)) == REG && \ - XEXP(X,1) == stack_pointer_rtx && YBASE_OFFSET(XEXP(X,0)) && \ - !ILLEGAL_HIMODE_ADDR(MODE, INTVAL(XEXP(X,0))))) - -#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ -{ \ - if (INDIRECTABLE_ADDRESS_P(X)) \ - goto ADDR; \ -} - - -/* Try machine-dependent ways of modifying an illegitimate address - to be legitimate. If we find one, return the new, valid address. - This macro is used in only one place: `memory_address' in explow.c. - - OLDX is the address as it was before break_out_memory_refs was called. - In some cases it is useful to look at this to decide what needs to be done. - - MODE and WIN are passed so that this macro can use - GO_IF_LEGITIMATE_ADDRESS. - - It is always safe for this macro to do nothing. It exists to recognize - opportunities to optimize the output. - - For the 1610, we need not do anything. However, if we don't, - `memory_address' will try lots of things to get a valid address, most of - which will result in dead code and extra pseudos. So we make the address - valid here. - - This is easy: The only valid addresses are an offset from a register - and we know the address isn't valid. So just call either `force_operand' - or `force_reg' unless this is a (plus (reg ...) (const_int 0)). */ - -#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \ -{ if (GET_CODE (X) == PLUS && XEXP (X, 1) == const0_rtx) \ - X = XEXP (x, 0); \ - if (GET_CODE (X) == MULT || GET_CODE (X) == PLUS) \ - X = force_operand (X, 0); \ - else \ - X = force_reg (Pmode, X); \ - goto WIN; \ -} - -/* Go to LABEL if ADDR (a legitimate address expression) - has an effect that depends on the machine mode it is used for. - On the 1610, only postdecrement and postincrement address depend thus - (the amount of decrement or increment being the length of the operand). */ - -#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) \ - if (GET_CODE (ADDR) == POST_INC || GET_CODE (ADDR) == POST_DEC) goto LABEL - -/* Nonzero if the constant value X is a legitimate general operand. - It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ -#define LEGITIMATE_CONSTANT_P(X) (1) - - -/* CONDITION CODE INFORMATION */ - -/* Store in cc_status the expressions - that the condition codes will describe - after execution of an instruction whose pattern is EXP. - Do not alter them if the instruction would not alter the cc's. */ - -#define NOTICE_UPDATE_CC(EXP, INSN) \ - notice_update_cc( (EXP) ) - -/* DESCRIBING RELATIVE COSTS OF OPERATIONS */ - -/* Compute the cost of computing a constant rtl expression RTX - whose rtx-code is CODE. The body of this macro is a portion - of a switch statement. If the code is computed here, - return it with a return statement. */ -#define CONST_COSTS(RTX,CODE,OUTER_CODE) \ - case CONST_INT: \ - return 0; \ - case LABEL_REF: \ - case SYMBOL_REF: \ - case CONST: \ - return COSTS_N_INSNS (1); \ - \ - case CONST_DOUBLE: \ - return COSTS_N_INSNS (2); - -/* Like CONST_COSTS but applies to nonconstant RTL expressions. - This can be used, for example to indicate how costly a multiply - instruction is. */ -#define RTX_COSTS(X,CODE,OUTER_CODE) \ - case MEM: \ - return GET_MODE (X) == QImode ? COSTS_N_INSNS (2) : \ - COSTS_N_INSNS (4); \ - case DIV: \ - case MOD: \ - return COSTS_N_INSNS (38); \ - case MULT: \ - if (GET_MODE (X) == QImode) \ - return COSTS_N_INSNS (2); \ - else \ - return COSTS_N_INSNS (38); \ - case PLUS: \ - if (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT) \ - { \ - if (GET_CODE (XEXP (X,1)) == CONST_INT) \ - { \ - int number = INTVAL(XEXP (X,1)); \ - if (number == 1) \ - return COSTS_N_INSNS (1); \ - if (INT_FITS_16_BITS(number)) \ - return COSTS_N_INSNS (2); \ - else \ - return COSTS_N_INSNS (4); \ - } \ - return COSTS_N_INSNS (1); \ - } \ - else \ - return COSTS_N_INSNS (38); \ - case MINUS: \ - if (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT) \ - { \ - if (GET_CODE (XEXP (X,1)) == CONST_INT) \ - { \ - if (INT_FITS_16_BITS(INTVAL(XEXP(X,1)))) \ - return COSTS_N_INSNS (2); \ - else \ - return COSTS_N_INSNS (4); \ - } \ - return COSTS_N_INSNS (1); \ - } \ - else \ - return COSTS_N_INSNS (38); \ - case AND: case IOR: case XOR: \ - if (GET_CODE (XEXP (X,1)) == CONST_INT) \ - { \ - if (INT_FITS_16_BITS(INTVAL(XEXP(X,1)))) \ - return COSTS_N_INSNS (2); \ - else \ - return COSTS_N_INSNS (4); \ - } \ - return COSTS_N_INSNS (1); \ - case NEG: case NOT: \ - return COSTS_N_INSNS (1); \ - case ASHIFT: \ - case ASHIFTRT: \ - case LSHIFTRT: \ - if (GET_CODE (XEXP (X,1)) == CONST_INT) \ - { \ - int number = INTVAL(XEXP (X,1)); \ - if (number == 1 || number == 4 || number == 8 || \ - number == 16) \ - return COSTS_N_INSNS (1); \ - else \ - return COSTS_N_INSNS (2); \ - } \ - return COSTS_N_INSNS (1); - -/* An expression giving the cost of an addressing mode that contains - address. */ -#define ADDRESS_COST(ADDR) dsp16xx_address_cost (ADDR) - -/* A c expression for the cost of moving data from a register in - class FROM to one in class TO. The classes are expressed using - the enumeration values such as GENERAL_REGS. A value of 2 is - the default. */ -#define REGISTER_MOVE_COST(FROM,TO) dsp16xx_register_move_cost (FROM, TO) - -/* A C expression for the cost of moving data of mode MODE between - a register and memory. A value of 2 is the default. */ -#define MEMORY_MOVE_COST(MODE) \ - (GET_MODE_CLASS(MODE) == MODE_INT && MODE == QImode ? 12 \ - : 16) - -/* A C expression for the cost of a branch instruction. A value of - 1 is the default; */ -#define BRANCH_COST 2 - - -/* Define this because otherwise gcc will try to put the function address - in any old pseudo register. We can only use pt. */ -#define NO_FUNCTION_CSE - -/* Define this macro as a C expression which is nonzero if accessing less - than a word of memory (i.e a char or short) is no faster than accessing - a word of memory, i.e if such access require more than one instruction - or if ther is no difference in cost between byte and (aligned) word - loads. */ -#define SLOW_BYTE_ACCESS 1 - -/* Define this macro if zero-extension (of a char or short to an int) can - be done faster if the destination is a register that is know to be zero. */ -/* #define SLOW_ZERO_EXTEND */ - -/* Define this macro if unaligned accesses have a cost many times greater than - aligned accesses, for example if they are emulated in a trap handler */ -/* define SLOW_UNALIGNED_ACCESS */ - -/* Define this macro to inhibit strength reduction of memory addresses */ -/* #define DONT_REDUCE_ADDR */ - - -/* DIVIDING THE OUTPUT IN SECTIONS */ -/* Output before read-only data. */ - -#define DEFAULT_TEXT_SEG_NAME ".text" -#define TEXT_SECTION_ASM_OP rsect_text - -/* Output before constants and strings */ -#define DEFAULT_CONST_SEG_NAME ".const" -#define READONLY_SECTION_ASM_OP rsect_const -#define READONLY_DATA_SECTION const_section - -/* Output before writable data. */ -#define DEFAULT_DATA_SEG_NAME ".data" -#define DATA_SECTION_ASM_OP rsect_data - -#define DEFAULT_BSS_SEG_NAME ".bss" -#define BSS_SECTION_ASM_OP rsect_bss - -/* We will default to using 1610 if the user doesn't - specify it. */ -#define DEFAULT_CHIP_NAME "1610" - -/* A list of names for sections other than the standard ones, which are - 'in_text' and 'in_data' (and .bss if BSS_SECTION_ASM_OP is defined). */ -#define EXTRA_SECTIONS in_const - -#define EXTRA_SECTION_FUNCTIONS \ -void \ -const_section () \ -{ \ - if (in_section != in_const) \ - { \ - fprintf (asm_out_file, "%s\n", READONLY_SECTION_ASM_OP); \ - in_section = in_const; \ - } \ -} - -/* THE OVERALL FRAMEWORK OF AN ASSEMBLER FILE */ - -/* Output at beginning of assembler file. */ -#define ASM_FILE_START(FILE) dsp16xx_file_start () - -/* Prevent output of .gcc_compiled */ -#define ASM_IDENTIFY_GCC(FILE) - -/* A C string constant describing how to begin a comment in the target - assembler language. */ -/* define ASM_COMMENT_START */ - -/* Output to assembler file text saying following lines - may contain character constants, extra white space, comments, etc. */ -#define ASM_APP_ON "" - -/* Output to assembler file text saying following lines - no longer contain unusual constructs. */ -#define ASM_APP_OFF "" - -/* OUTPUT OF DATA */ - -/* This is how to output an assembler line defining a `double' constant. */ -#define ASM_OUTPUT_DOUBLE(FILE,VALUE) asm_output_float (FILE,VALUE) - -/* This is how to output an assembler line defining a `float' constant. */ -#define ASM_OUTPUT_FLOAT(FILE,VALUE) asm_output_float (FILE, VALUE) - -/* This is how to output and assembler line defininf a 'float' constant of - size HFmode. */ -#define ASM_OUTPUT_SHORT_FLOAT(FILE,VALUE) asm_output_float (FILE, VALUE) - -/* This is how to output an assembler line defining an `char' constant. */ -#define ASM_OUTPUT_CHAR(FILE,VALUE) \ -( fprintf (FILE, "\tint "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -/* This is how to output an assembler line defining an `short' constant. */ -#define ASM_OUTPUT_SHORT(FILE,EXP) asm_output_long(FILE,INTVAL(EXP)) - -/* This is how to output an assembler line defining a 'int' constant. */ -#define ASM_OUTPUT_INT(FILE, EXP) asm_output_long(FILE,INTVAL(EXP)) - -/* This is how to output an assembler line for a numeric constant byte. */ -#define ASM_OUTPUT_BYTE(FILE,VALUE) \ - fprintf ((FILE), "\tint %ld\n", (long)(VALUE)) - - -/* This is how we output a 'c' character string. For the 16xx - assembler we have to do it one letter at a time */ - -#define ASCII_LENGTH 10 - -#define ASM_OUTPUT_ASCII(MYFILE, MYSTRING, MYLENGTH) \ - do { \ - FILE *_hide_asm_out_file = (MYFILE); \ - unsigned char *_hide_p = (unsigned char *) (MYSTRING); \ - int _hide_thissize = (MYLENGTH); \ - { \ - FILE *asm_out_file = _hide_asm_out_file; \ - unsigned char *p = _hide_p; \ - int thissize = _hide_thissize; \ - int i; \ - \ - for (i = 0; i < thissize; i++) \ - { \ - register int c = p[i]; \ - \ - if (i % ASCII_LENGTH == 0) \ - fprintf (asm_out_file, "\tint "); \ - \ - if (c >= ' ' && c < 0177 && c != '\'') \ - { \ - putc ('\'', asm_out_file); \ - putc (c, asm_out_file); \ - putc ('\'', asm_out_file); \ - } \ - else \ - { \ - fprintf (asm_out_file, "%d", c); \ - /* After an octal-escape, if a digit follows, \ - terminate one string constant and start another. \ - The Vax assembler fails to stop reading the escape \ - after three digits, so this is the only way we \ - can get it to parse the data properly. \ - if (i < thissize - 1 \ - && p[i + 1] >= '0' && p[i + 1] <= '9') \ - fprintf (asm_out_file, "\'\n\tint \'"); \ - */ \ - } \ - /* if: \ - we are not at the last char (i != thissize -1) \ - and (we are not at a line break multiple \ - but i == 0) (it will be the very first time) \ - then put out a comma to extend. \ - */ \ - if ((i != thissize - 1) && ((i + 1) % ASCII_LENGTH)) \ - fprintf(asm_out_file, ","); \ - if (!((i + 1) % ASCII_LENGTH)) \ - fprintf (asm_out_file, "\n"); \ - } \ - fprintf (asm_out_file, "\n"); \ - } \ - } \ - while (0) - -/* Store in OUTPUT a string (made with alloca) containing - an assembler-name for a local static variable or function - named NAME. LABELNO is an integer which is different for - each call. */ - -#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ - do { \ - int len = strlen (NAME); \ - char *temp = (char *) alloca (len + 3); \ - temp[0] = 'L'; \ - strcpy (&temp[1], (NAME)); \ - temp[len + 1] = '_'; \ - temp[len + 2] = 0; \ - (OUTPUT) = (char *) alloca (strlen (NAME) + 11); \ - ASM_GENERATE_INTERNAL_LABEL (OUTPUT, temp, LABELNO); \ - } while (0) - -#define ASM_OPEN_PAREN "(" -#define ASM_CLOSE_PAREN ")" - - -/* OUTPUT OF UNINITIALIZED VARIABLES */ - -/* This says how to output an assembler line - to define a global common symbol. */ - -#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ - asm_output_common (FILE, NAME, SIZE, ROUNDED); - -/* This says how to output an assembler line - to define a local common symbol. */ - -#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ - asm_output_local (FILE, NAME, SIZE, ROUNDED); - -/* OUTPUT AND GENERATION OF LABELS */ - -/* This is how to output the definition of a user-level label named NAME, - such as the label on a static function or variable NAME. */ -#define ASM_OUTPUT_LABEL(FILE,NAME) \ - do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) - -/* This is how to output a command to make the user-level label named NAME - defined for reference from other files. */ - -#define ASM_GLOBALIZE_LABEL(FILE,NAME) \ - do { fputs (".global ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0) - -/* A C statement to output to the stdio stream any text necessary - for declaring the name of an external symbol named name which - is referenced in this compilation but not defined. */ - -#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \ -{ \ - fprintf (FILE, ".extern "); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ -} -/* A C statement to output on stream an assembler pseudo-op to - declare a library function named external. */ - -#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ -{ \ - fprintf (FILE, ".extern "); \ - assemble_name (FILE, XSTR (FUN, 0)); \ - fprintf (FILE, "\n"); \ -} - -/* The prefix to add to user-visible assembler symbols. */ - -#define USER_LABEL_PREFIX "_" - -/* This is how to output an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. */ -#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ - fprintf (FILE, "%s%d:\n", PREFIX, NUM) - -/* This is how to store into the string LABEL - the symbol_ref name of an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - This is suitable for output with `assemble_name'. */ -#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ - sprintf (LABEL, "*%s%d", PREFIX, NUM) - - -/* OUTPUT OF ASSEMBLER INSTRUCTIONS */ - -/* How to refer to registers in assembler output. - This sequence is indexed by compiler's hard-register-number (see above). */ - -#define REGISTER_NAMES \ -{"a0", "a0l", "a1", "a1l", "x", "y", "yl", "p", "pl", \ - "r0", "r1", "r2", "r3", "j", "k", "ybase", "pt", \ - "ar0", "ar1", "ar2", "ar3", \ - "c0", "c1", "c2", "pr", "rb", \ - "*(0)", "*(1)", "*(2)", "*(3)", "*(4)", "*(5)", \ - "*(6)", "*(7)", "*(8)", "*(9)", "*(10)", "*(11)", \ - "*(12)", "*(13)", "*(14)", "*(15)", "*(16)", "*(17)", \ - "*(18)", "*(19)", "*(20)", "*(21)", "*(22)", "*(23)", \ - "*(24)", "*(25)", "*(26)", "*(27)", "*(28)", "*(29)", \ - "*(30)", "*(31)" } - -#define HIMODE_REGISTER_NAMES \ -{"a0", "a0", "a1", "a1", "x", "y", "y", "p", "p", \ - "r0", "r1", "r2", "r3", "j", "k", "ybase", "pt", \ - "ar0", "ar1", "ar2", "ar3", \ - "c0", "c1", "c2", "pr", "rb", \ - "*(0)", "*(1)", "*(2)", "*(3)", "*(4)", "*(5)", \ - "*(6)", "*(7)", "*(8)", "*(9)", "*(10)", "*(11)", \ - "*(12)", "*(13)", "*(14)", "*(15)", "*(16)", "*(17)", \ - "*(18)", "*(19)", "*(20)", "*(21)", "*(22)", "*(23)", \ - "*(24)", "*(25)", "*(26)", "*(27)", "*(28)", "*(29)", \ - "*(30)", "*(31)" } - -#define PRINT_OPERAND_PUNCT_VALID_P(CODE) 0 - -/* Print operand X (an rtx) in assembler syntax to file FILE. - CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. - For `%' followed by punctuation, CODE is the punctuation and X is null. - - DSP1610 extensions for operand codes: - - %H - print lower 16 bits of constant - %U - print upper 16 bits of constant - %w - print low half of register (e.g 'a0l') - %u - print upper half of register (e.g 'a0') - %b - print high half of accumulator for F3 ALU instructions - %h - print constant in decimal */ - -#define PRINT_OPERAND(FILE, X, CODE) print_operand(FILE, X, CODE) - - -/* Print a memory address as an operand to reference that memory location. */ - -#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR) - -/* This is how to output an insn to push a register on the stack. - It need not be very fast code since it is used only for profiling */ -#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) fatal("Profiling not implemented yet."); - -/* This is how to output an insn to pop a register from the stack. - It need not be very fast code since it is used only for profiling */ -#define ASM_OUTPUT_REG_POP(FILE,REGNO) fatal("Profiling not implemented yet."); - -/* OUTPUT OF DISPATCH TABLES */ - -/* This macro should be provided on machines where the addresses in a dispatch - table are relative to the table's own address. */ -#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ - fprintf (FILE, "\tint L%d-L%d\n", VALUE, REL) - -/* This macro should be provided on machines where the addresses in a dispatch - table are absolute. */ -#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ - fprintf (FILE, "\tint L%d\n", VALUE) - -/* ASSEMBLER COMMANDS FOR ALIGNMENT */ - -/* This is how to output an assembler line that says to advance - the location counter to a multiple of 2**LOG bytes. We should - not have to do any alignment since the 1610 is a word machine. */ -#define ASM_OUTPUT_ALIGN(FILE,LOG) - -/* Define this macro if ASM_OUTPUT_SKIP should not be used in the text section - because it fails to put zero1 in the bytes that are skipped. */ -#define ASM_NO_SKIP_IN_TEXT 1 - -#define ASM_OUTPUT_SKIP(FILE,SIZE) \ - fprintf (FILE, "\t%d * int 0\n", (SIZE)) - -/* CONTROLLING DEBUGGING INFORMATION FORMAT */ - -/* Define this macro if GCC should produce COFF-style debugging output - for SDB in response to the '-g' option */ -#define SDB_DEBUGGING_INFO - -/* Support generating stabs for the listing file generator */ -#define DBX_DEBUGGING_INFO - -/* The default format when -g is given is still COFF debug info */ -#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG - -#define DBX_REGISTER_NUMBER(REGNO) (REGNO) - -/* MISCELLANEOUS PARAMETERS */ - -/* Specify the machine mode that this machine uses - for the index in the tablejump instruction. */ -#define CASE_VECTOR_MODE QImode - -/* Define this if the tablejump instruction expects the table - to contain offsets from the address of the table. - Do not define this if the table should contain absolute addresses. */ -/* #define CASE_VECTOR_PC_RELATIVE */ - -/* Specify the tree operation to be used to convert reals to integers. */ -#define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR - -/* This is the kind of divide that is easiest to do in the general case. */ -#define EASY_DIV_EXPR TRUNC_DIV_EXPR - -/* Max number of bytes we can move from memory to memory - in one reasonably fast instruction. */ -#define MOVE_MAX 1 - -/* Defining this macro causes the compiler to omit a sign-extend, zero-extend, - or bitwise 'and' instruction that truncates the count of a shift operation - to a width equal to the number of bits needed to represent the size of the - object being shifted. Do not define this macro unless the truncation applies - to both shift operations and bit-field operations (if any). */ -/* #define SHIFT_COUNT_TRUNCATED */ - -/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits - is done just by pretending it is already truncated. */ -#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 - -/* When a prototype says `char' or `short', really pass an `int'. */ -#define PROMOTE_PROTOTYPES - -/* An alias for the machine mode used for pointers */ -#define Pmode QImode - -/* A function address in a call instruction - is a byte address (for indexing purposes) - so give the MEM rtx a byte's mode. */ -#define FUNCTION_MODE QImode - -#if !defined(__DATE__) -#define TARGET_VERSION fprintf (stderr, " (%s)", VERSION_INFO1) -#else -#define TARGET_VERSION fprintf (stderr, " (%s, %s)", VERSION_INFO1, __DATE__) -#endif - -#define VERSION_INFO1 "AT&T DSP16xx C Cross Compiler, version 1.2.0" - - -/* Define this as 1 if `char' should by default be signed; else as 0. */ -#define DEFAULT_SIGNED_CHAR 1 - -/* If this macro is defined, GNU CC gathers statistics about the number and - kind of tree node it allocates during each run. The option '-fstats' will - tell the compiler to print these statistics about the sizes of it obstacks. */ -#define GATHER_STATISTICS - -/* Define this so gcc does not output a call to __main, since we - are not currently supporting c++. */ -#define INIT_SECTION_ASM_OP 1 |