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[include/opcode]

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* 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 18:41:28 +00:00
parent d0d995612d
commit f9c7014e9c
12 changed files with 918 additions and 841 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
sim/rx/gdb-if.c
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@ -733,6 +733,8 @@ handle_step (int rc)
void
sim_resume (SIM_DESC sd, int step, int sig_to_deliver)
{
int rc;
check_desc (sd);
if (sig_to_deliver != 0)
@ -745,7 +747,12 @@ sim_resume (SIM_DESC sd, int step, int sig_to_deliver)
execution_error_clear_last_error ();
if (step)
handle_step (decode_opcode ());
{
rc = setjmp (decode_jmp_buf);
if (rc == 0)
rc = decode_opcode ();
handle_step (rc);
}
else
{
/* We don't clear 'stop' here, because then we would miss
@ -762,7 +769,9 @@ sim_resume (SIM_DESC sd, int step, int sig_to_deliver)
break;
}
int rc = decode_opcode ();
rc = setjmp (decode_jmp_buf);
if (rc == 0)
rc = decode_opcode ();
if (execution_error_get_last_error () != SIM_ERR_NONE)
{