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authorEdgar E. Iglesias2014-05-01 16:24:45 +0200
committerPeter Maydell2014-05-01 16:24:45 +0200
commit1b505f93bcf605e7c4144fef83bd039b0d4f2576 (patch)
tree1709df9a87388bf3e1a12ed507eca93e282ab9e8 /target-arm
parenttarget-arm: Make vbar_write 64bit friendly on 32bit hosts (diff)
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target-arm: A64: Handle blr lr
For linked branches, updates to the link register happen conceptually after the read of the branch target register. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Cc: qemu-stable@nongnu.org Message-id: 1398926097-28097-3-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/translate-a64.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index e31e069041..b62db4d566 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -1509,8 +1509,10 @@ static void disas_uncond_b_reg(DisasContext *s, uint32_t insn)
switch (opc) {
case 0: /* BR */
case 2: /* RET */
+ tcg_gen_mov_i64(cpu_pc, cpu_reg(s, rn));
break;
case 1: /* BLR */
+ tcg_gen_mov_i64(cpu_pc, cpu_reg(s, rn));
tcg_gen_movi_i64(cpu_reg(s, 30), s->pc);
break;
case 4: /* ERET */
@@ -1529,7 +1531,6 @@ static void disas_uncond_b_reg(DisasContext *s, uint32_t insn)
return;
}
- tcg_gen_mov_i64(cpu_pc, cpu_reg(s, rn));
s->is_jmp = DISAS_JUMP;
}