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target-arm: Refactor translation of exception generating instructions 

Create a new function which does the common sequence of gen_set_condexec,
gen_set_pc_im, gen_exception, set is_jmp to DISAS_JUMP.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2011-01-14 20:39:19 +01:00 committed by Aurelien Jarno
parent 5de3a9d3b7
commit bc4a0de0a2
1 changed files with 15 additions and 28 deletions
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43
target-arm/translate.c
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@ -3485,6 +3485,14 @@ gen_set_condexec (DisasContext *s)
}
}
static void gen_exception_insn(DisasContext *s, int offset, int excp)
{
gen_set_condexec(s);
gen_set_pc_im(s->pc - offset);
gen_exception(excp);
s->is_jmp = DISAS_JUMP;
}
static void gen_nop_hint(DisasContext *s, int val)
{
switch (val) {
@ -5976,10 +5984,7 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
tcg_gen_mov_i32(cpu_exclusive_test, addr);
tcg_gen_movi_i32(cpu_exclusive_info,
size | (rd << 4) | (rt << 8) | (rt2 << 12));
gen_set_condexec(s);
gen_set_pc_im(s->pc - 4);
gen_exception(EXCP_STREX);
s->is_jmp = DISAS_JUMP;
gen_exception_insn(s, 4, EXCP_STREX);
}
#else
static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
@ -6376,10 +6381,7 @@ static void disas_arm_insn(CPUState * env, DisasContext *s)
goto illegal_op;
}
/* bkpt */
gen_set_condexec(s);
gen_set_pc_im(s->pc - 4);
gen_exception(EXCP_BKPT);
s->is_jmp = DISAS_JUMP;
gen_exception_insn(s, 4, EXCP_BKPT);
break;
case 0x8: /* signed multiply */
case 0xa:
@ -7278,10 +7280,7 @@ static void disas_arm_insn(CPUState * env, DisasContext *s)
break;
default:
illegal_op:
gen_set_condexec(s);
gen_set_pc_im(s->pc - 4);
gen_exception(EXCP_UDEF);
s->is_jmp = DISAS_JUMP;
gen_exception_insn(s, 4, EXCP_UDEF);
break;
}
}
@ -8927,10 +8926,7 @@ static void disas_thumb_insn(CPUState *env, DisasContext *s)
break;
case 0xe: /* bkpt */
gen_set_condexec(s);
gen_set_pc_im(s->pc - 2);
gen_exception(EXCP_BKPT);
s->is_jmp = DISAS_JUMP;
gen_exception_insn(s, 2, EXCP_BKPT);
break;
case 0xa: /* rev */
@ -9052,17 +9048,11 @@ static void disas_thumb_insn(CPUState *env, DisasContext *s)
}
return;
undef32:
gen_set_condexec(s);
gen_set_pc_im(s->pc - 4);
gen_exception(EXCP_UDEF);
s->is_jmp = DISAS_JUMP;
gen_exception_insn(s, 4, EXCP_UDEF);
return;
illegal_op:
undef:
gen_set_condexec(s);
gen_set_pc_im(s->pc - 2);
gen_exception(EXCP_UDEF);
s->is_jmp = DISAS_JUMP;
gen_exception_insn(s, 2, EXCP_UDEF);
}
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
@ -9150,10 +9140,7 @@ static inline void gen_intermediate_code_internal(CPUState *env,
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
if (bp->pc == dc->pc) {
gen_set_condexec(dc);
gen_set_pc_im(dc->pc);
gen_exception(EXCP_DEBUG);
dc->is_jmp = DISAS_JUMP;
gen_exception_insn(dc, 0, EXCP_DEBUG);
/* Advance PC so that clearing the breakpoint will
invalidate this TB. */
dc->pc += 2;