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[include/opcode] 

* rx.h (RX_Operand_Type): Add TwoReg.
(RX_Opcode_ID): Remove ediv and ediv2.

[opcodes]

* rx-decode.opc (SRR): New.
(rx_decode_opcode): Use it for movbi and movbir.  Decode NOP2 (mov
r0,r0) and NOP3 (max r0,r0) special cases.
* rx-decode.c: Regenerate.

[sim/rx]

* rx.c (decode_cache_base): New.
(id_names): Remove ediv and edivu.
(optype_names): Add TwoReg.
(maybe_get_mem_page): New.
(rx_get_byte): Call it.
(get_op): Add TwoReg support.
(put_op): Likewise.
(PD, PS, PS2, GD, GS, GS2, DSZ, SSZ, S2SZ, US1, US2, OM): "opcode"
is a pointer now.
(DO_RETURN): New.  We use longjmp to return an exception result.
(decode_opcode): Make opcode a pointer to the decode cache.  Save
decoded opcode information and re-use.  Call DO_RETURN instead of
return throughout.  Remove ediv and edivu.
* mem.c (ptdc): New.  Adds decode cache.
(rx_mem_ptr): Support it.
(rx_mem_decode_cache): New.
* mem.h (enum mem_ptr_action): add MPA_DECODE_CACHE.
(rx_mem_decode_cache): Declare.
* gdb-if.c (sim_resume): Add decode_opcode's setjmp logic here...
* main.c (main): ...and here.  Use a fast loop if neither trace
nor disassemble is given.
* cpu.h (RX_MAKE_STEPPED, RX_MAKE_HIT_BREAK, RX_MAKE_EXITED,
RX_MAKE_STOPPED, RX_EXITED, RX_STOPPED): Adjust so that 0 is not a
valid code for anything.
This commit is contained in:
DJ Delorie 2010-07-29 18:41:26 +00:00
parent f4b40e3b3e
commit edc9603e2c
2 changed files with 6 additions and 2 deletions
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5
include/opcode/ChangeLog
View File

@ -1,3 +1,8 @@
2010-07-29 DJ Delorie <dj@redhat.com>
* rx.h (RX_Operand_Type): Add TwoReg.
(RX_Opcode_ID): Remove ediv and ediv2.
2010-07-27 DJ Delorie <dj@redhat.com> 2010-07-27 DJ Delorie <dj@redhat.com>
* rx.h (RX_Opcode_ID): Add nop2 and nop3 for statistics. * rx.h (RX_Opcode_ID): Add nop2 and nop3 for statistics.

3
include/opcode/rx.h
View File

@ -47,6 +47,7 @@ typedef enum
RX_Operand_Predec, /* [-Rn] */ RX_Operand_Predec, /* [-Rn] */
RX_Operand_Condition, /* eq, gtu, etc */ RX_Operand_Condition, /* eq, gtu, etc */
RX_Operand_Flag, /* [UIOSZC] */ RX_Operand_Flag, /* [UIOSZC] */
RX_Operand_TwoReg, /* [Rn + scale*R2] */
} RX_Operand_Type; } RX_Operand_Type;
typedef enum typedef enum
@ -82,8 +83,6 @@ typedef enum
RXO_min, /* d = min(d,s) */ RXO_min, /* d = min(d,s) */
RXO_emul, /* d:64 = d:32 * s */ RXO_emul, /* d:64 = d:32 * s */
RXO_emulu, /* d:64 = d:32 * s (unsigned) */ RXO_emulu, /* d:64 = d:32 * s (unsigned) */
RXO_ediv, /* d:64 / s; d = quot, d+1 = rem */
RXO_edivu, /* d:64 / s; d = quot, d+1 = rem */
RXO_rolc, /* d <<= 1 through carry */ RXO_rolc, /* d <<= 1 through carry */
RXO_rorc, /* d >>= 1 through carry*/ RXO_rorc, /* d >>= 1 through carry*/