258 lines
8.5 KiB
C
258 lines
8.5 KiB
C
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/* Memory ops header for CGEN-based simulators.
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Copyright (C) 1996-2022 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions.
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This file is part of the GNU Simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef CGEN_MEM_H
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#define CGEN_MEM_H
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/* TODO: This should get moved into sim-inline.h. */
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#ifdef MEMOPS_DEFINE_INLINE
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#define MEMOPS_INLINE
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#else
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#define MEMOPS_INLINE EXTERN_INLINE
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#endif
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/* Integer memory read support.
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There is no floating point support. In this context there are no
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floating point modes, only floating point operations (whose arguments
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and results are arrays of bits that we treat as integer modes). */
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#define DECLARE_GETMEM_EXTERN(mode, size) \
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extern mode XCONCAT2 (GETMEM,mode) (SIM_CPU *, IADDR, ADDR);
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#if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
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#define DECLARE_GETMEM(mode, size) \
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DECLARE_GETMEM_EXTERN (mode, size) \
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MEMOPS_INLINE mode \
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XCONCAT2 (GETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a) \
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{ \
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PROFILE_COUNT_READ (cpu, a, XCONCAT2 (MODE_,mode)); \
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/* Don't read anything into "unaligned" here. Bad name choice. */\
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return XCONCAT2 (sim_core_read_unaligned_,size) (cpu, pc, read_map, a); \
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}
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#else
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#define DECLARE_GETMEM(mode, size) DECLARE_GETMEM_EXTERN (mode, size)
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#endif
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DECLARE_GETMEM (QI, 1) /* TAGS: GETMEMQI */
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DECLARE_GETMEM (UQI, 1) /* TAGS: GETMEMUQI */
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DECLARE_GETMEM (HI, 2) /* TAGS: GETMEMHI */
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DECLARE_GETMEM (UHI, 2) /* TAGS: GETMEMUHI */
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DECLARE_GETMEM (SI, 4) /* TAGS: GETMEMSI */
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DECLARE_GETMEM (USI, 4) /* TAGS: GETMEMUSI */
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DECLARE_GETMEM (DI, 8) /* TAGS: GETMEMDI */
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DECLARE_GETMEM (UDI, 8) /* TAGS: GETMEMUDI */
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#undef DECLARE_GETMEM
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#undef DECLARE_GETMEM_EXTERN
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/* Integer memory write support. */
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#define DECLARE_SETMEM_EXTERN(mode, size) \
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extern void XCONCAT2 (SETMEM,mode) (SIM_CPU *, IADDR, ADDR, mode);
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#if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
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#define DECLARE_SETMEM(mode, size) \
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DECLARE_SETMEM_EXTERN (mode, size) \
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MEMOPS_INLINE void \
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XCONCAT2 (SETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a, mode val) \
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{ \
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PROFILE_COUNT_WRITE (cpu, a, XCONCAT2 (MODE_,mode)); \
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/* Don't read anything into "unaligned" here. Bad name choice. */ \
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XCONCAT2 (sim_core_write_unaligned_,size) (cpu, pc, write_map, a, val); \
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}
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#else
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#define DECLARE_SETMEM(mode, size) DECLARE_SETMEM_EXTERN (mode, size)
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#endif
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DECLARE_SETMEM (QI, 1) /* TAGS: SETMEMQI */
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DECLARE_SETMEM (UQI, 1) /* TAGS: SETMEMUQI */
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DECLARE_SETMEM (HI, 2) /* TAGS: SETMEMHI */
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DECLARE_SETMEM (UHI, 2) /* TAGS: SETMEMUHI */
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DECLARE_SETMEM (SI, 4) /* TAGS: SETMEMSI */
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DECLARE_SETMEM (USI, 4) /* TAGS: SETMEMUSI */
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DECLARE_SETMEM (DI, 8) /* TAGS: SETMEMDI */
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DECLARE_SETMEM (UDI, 8) /* TAGS: SETMEMUDI */
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#undef DECLARE_SETMEM
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#undef DECLARE_SETMEM_EXTERN
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/* Instruction read support. */
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#define DECLARE_GETIMEM_EXTERN(mode, size) \
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extern mode XCONCAT2 (GETIMEM,mode) (SIM_CPU *, ADDR);
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#if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
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#define DECLARE_GETIMEM(mode, size) \
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DECLARE_GETIMEM_EXTERN (mode, size) \
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MEMOPS_INLINE mode \
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XCONCAT2 (GETIMEM,mode) (SIM_CPU *cpu, IADDR a) \
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{ \
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/*PROFILE_COUNT_READ (cpu, a, XCONCAT2 (MODE_,mode));*/ \
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/* Don't read anything into "unaligned" here. Bad name choice. */\
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return XCONCAT2 (sim_core_read_unaligned_,size) (cpu, a, exec_map, a); \
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}
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#else
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#define DECLARE_GETIMEM(mode, size) DECLARE_GETIMEM_EXTERN (mode, size)
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#endif
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DECLARE_GETIMEM (UQI, 1) /* TAGS: GETIMEMUQI */
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DECLARE_GETIMEM (UHI, 2) /* TAGS: GETIMEMUHI */
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DECLARE_GETIMEM (USI, 4) /* TAGS: GETIMEMUSI */
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DECLARE_GETIMEM (UDI, 8) /* TAGS: GETIMEMUDI */
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#undef DECLARE_GETIMEM
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#undef DECLARE_GETIMEM_EXTERN
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/* Floating point support.
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??? One can specify that the integer memory ops should be used instead,
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and treat fp values as just a series of bits. One might even bubble
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that notion up into the description language. However, that departs from
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gcc. One could cross over from gcc's notion and a "series of bits" notion
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between there and here, and thus still not require these routines. However,
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that's a complication of its own (not that having these fns isn't).
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But for now, we do things this way. */
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#define DECLARE_GETMEM_EXTERN(mode, size) \
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extern mode XCONCAT2 (GETMEM,mode) (SIM_CPU *, IADDR, ADDR);
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#if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
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#define DECLARE_GETMEM(mode, size) \
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DECLARE_GETMEM_EXTERN (mode, size) \
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MEMOPS_INLINE mode \
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XCONCAT2 (GETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a) \
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{ \
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PROFILE_COUNT_READ (cpu, a, XCONCAT2 (MODE_,mode)); \
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/* Don't read anything into "unaligned" here. Bad name choice. */\
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return XCONCAT2 (sim_core_read_unaligned_,size) (cpu, pc, read_map, a); \
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}
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#else
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#define DECLARE_GETMEM(mode, size) DECLARE_GETMEM_EXTERN (mode, size)
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#endif
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DECLARE_GETMEM (SF, 4) /* TAGS: GETMEMSF */
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DECLARE_GETMEM (DF, 8) /* TAGS: GETMEMDF */
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#undef DECLARE_GETMEM
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#undef DECLARE_GETMEM_EXTERN
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#define DECLARE_SETMEM_EXTERN(mode, size) \
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extern void XCONCAT2 (SETMEM,mode) (SIM_CPU *, IADDR, ADDR, mode);
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#if defined (__GNUC__) || defined (MEMOPS_DEFINE_INLINE)
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#define DECLARE_SETMEM(mode, size) \
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DECLARE_SETMEM_EXTERN (mode, size) \
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MEMOPS_INLINE void \
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XCONCAT2 (SETMEM,mode) (SIM_CPU *cpu, IADDR pc, ADDR a, mode val) \
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{ \
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PROFILE_COUNT_WRITE (cpu, a, XCONCAT2 (MODE_,mode)); \
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/* Don't read anything into "unaligned" here. Bad name choice. */ \
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XCONCAT2 (sim_core_write_unaligned_,size) (cpu, pc, write_map, a, val); \
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}
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#else
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#define DECLARE_SETMEM(mode, size) DECLARE_SETMEM_EXTERN (mode, size
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#endif
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DECLARE_SETMEM (SF, 4) /* TAGS: SETMEMSF */
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DECLARE_SETMEM (DF, 8) /* TAGS: SETMEMDF */
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#undef DECLARE_SETMEM
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#undef DECLARE_SETMEM_EXTERN
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/* GETT<mode>: translate target value at P to host value.
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This needn't be very efficient (i.e. can call memcpy) as this is
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only used when interfacing with the outside world (e.g. gdb). */
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#define DECLARE_GETT_EXTERN(mode, size) \
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extern mode XCONCAT2 (GETT,mode) (unsigned char *);
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#if defined (MEMOPS_DEFINE_INLINE)
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#define DECLARE_GETT(mode, size) \
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DECLARE_GETT_EXTERN (mode, size) \
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mode \
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XCONCAT2 (GETT,mode) (unsigned char *p) \
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{ \
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mode tmp; \
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memcpy (&tmp, p, sizeof (mode)); \
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return XCONCAT2 (T2H_,size) (tmp); \
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}
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#else
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#define DECLARE_GETT(mode, size) DECLARE_GETT_EXTERN (mode, size)
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#endif
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DECLARE_GETT (QI, 1) /* TAGS: GETTQI */
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DECLARE_GETT (UQI, 1) /* TAGS: GETTUQI */
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DECLARE_GETT (HI, 2) /* TAGS: GETTHI */
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DECLARE_GETT (UHI, 2) /* TAGS: GETTUHI */
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DECLARE_GETT (SI, 4) /* TAGS: GETTSI */
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DECLARE_GETT (USI, 4) /* TAGS: GETTUSI */
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DECLARE_GETT (DI, 8) /* TAGS: GETTDI */
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DECLARE_GETT (UDI, 8) /* TAGS: GETTUDI */
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#if 0 /* ??? defered until necessary */
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DECLARE_GETT (SF, 4) /* TAGS: GETTSF */
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DECLARE_GETT (DF, 8) /* TAGS: GETTDF */
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DECLARE_GETT (TF, 16) /* TAGS: GETTTF */
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#endif
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#undef DECLARE_GETT
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#undef DECLARE_GETT_EXTERN
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/* SETT<mode>: translate host value to target value and store at P.
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This needn't be very efficient (i.e. can call memcpy) as this is
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only used when interfacing with the outside world (e.g. gdb). */
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#define DECLARE_SETT_EXTERN(mode, size) \
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extern void XCONCAT2 (SETT,mode) (unsigned char *, mode);
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#if defined (MEMOPS_DEFINE_INLINE)
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#define DECLARE_SETT(mode, size) \
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DECLARE_SETT_EXTERN (mode, size) \
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void \
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XCONCAT2 (SETT,mode) (unsigned char *buf, mode val) \
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{ \
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mode tmp; \
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tmp = XCONCAT2 (H2T_,size) (val); \
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memcpy (buf, &tmp, sizeof (mode)); \
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}
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#else
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#define DECLARE_SETT(mode, size) DECLARE_SETT_EXTERN (mode, size)
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#endif
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DECLARE_SETT (QI, 1) /* TAGS: SETTQI */
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DECLARE_SETT (UQI, 1) /* TAGS: SETTUQI */
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DECLARE_SETT (HI, 2) /* TAGS: SETTHI */
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DECLARE_SETT (UHI, 2) /* TAGS: SETTUHI */
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DECLARE_SETT (SI, 4) /* TAGS: SETTSI */
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DECLARE_SETT (USI, 4) /* TAGS: SETTUSI */
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DECLARE_SETT (DI, 8) /* TAGS: SETTDI */
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DECLARE_SETT (UDI, 8) /* TAGS: SETTUDI */
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#if 0 /* ??? defered until necessary */
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DECLARE_SETT (SF, 4) /* TAGS: SETTSF */
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DECLARE_SETT (DF, 8) /* TAGS: SETTDF */
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DECLARE_SETT (TF, 16) /* TAGS: SETTTF */
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#endif
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#undef DECLARE_SETT
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#undef DECLARE_SETT_EXTERN
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#endif /* CGEN_MEM_H */
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