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sim: delete dead current_state globals

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The global current_state handle to the current simulator state is a
design idea that was half implemented, but never really cleaned up.
The point was to have a global variable pointing to the state so that
funcs could more quickly & easily access the state anywhere.  We've
instead moved in the direction of passing state around everywhere and
don't have any intention of moving back.

I also can't find any references to gdb using this variable, or to
cgen related "dump_regs" functions, both of which were used in the
comments related to this code.
This commit is contained in:
Mike Frysinger
2016-01-02 09:23:06 -05:00
parent 32273fe68f
commit d47f5b30d8
19 changed files with 42 additions and 86 deletions
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4
sim/mips/ChangeLog
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@ -1,3 +1,7 @@
2016-01-02 Mike Frysinger <vapier@gentoo.org>
* dv-tx3904cpu.c (CPU, SD): Delete.
2015-12-30 Mike Frysinger <vapier@gentoo.org>
* wrapper.c (mips_reg_store, mips_reg_fetch): Define.

5
sim/mips/dv-tx3904cpu.c
View File

@ -143,9 +143,6 @@ deliver_tx3904cpu_interrupt (struct hw *me,
sim_cpu *cpu = STATE_CPU (sd, 0); /* NB: fix CPU 0. */
address_word cia = CPU_PC_GET (cpu);
#define CPU cpu
#define SD current_state
if (controller->pending_reset)
{
controller->pending_reset = 0;
@ -190,8 +187,6 @@ deliver_tx3904cpu_interrupt (struct hw *me,
}
} /* interrupt set */
}
#undef CPU cpu
#undef SD current_state
}