From 836e51b694f33d864cf4962d1dd3718bb56803c6 Mon Sep 17 00:00:00 2001
From: David Guillen Fandos
Date: Wed, 30 Jun 2021 00:29:21 +0200
Subject: Fix some UB behaviour

---
 cpu.c   | 2 +-
 sound.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/cpu.c b/cpu.c
index 873a5e3..60ff3bc 100644
--- a/cpu.c
+++ b/cpu.c
@@ -266,7 +266,7 @@ void print_register_usage(void)
   using_register_list(arm, reg_list, 16)                                      \
 
 #define arm_decode_branch()                                                   \
-  s32 offset = ((s32)(opcode & 0xFFFFFF) << 8) >> 6                           \
+  s32 offset = ((s32)((u32)(opcode << 8))) >> 6                               \
 
 
 #define thumb_decode_shift()                                                  \
diff --git a/sound.c b/sound.c
index bc88fff..76c3525 100644
--- a/sound.c
+++ b/sound.c
@@ -85,9 +85,9 @@ void sound_timer(fixed8_24 frequency_step, u32 channel)
   u32 buffer_index = ds->buffer_index;
   s16 current_sample, next_sample;
 
-  current_sample = ds->fifo[ds->fifo_base] << 4;
+  current_sample = ds->fifo[ds->fifo_base] * 16;
   ds->fifo_base = (ds->fifo_base + 1) % 32;
-  next_sample = ds->fifo[ds->fifo_base] << 4;
+  next_sample = ds->fifo[ds->fifo_base] * 16;
 
   if(sound_on == 1)
   {
@@ -655,7 +655,7 @@ void render_audio(void)
             current_sample = 2047;
          if(current_sample < -2048)
             current_sample = -2048;
-         stream_base[i] = current_sample << 4;
+         stream_base[i] = current_sample * 16;
          source[i] = 0;
       }
       audio_batch_cb(stream_base, 256);
-- 
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