From b0d771b325f9d47007136fe0b1f920cab2e14397 Mon Sep 17 00:00:00 2001
From: cxy004 <cxy004@qq.com>
Date: Tue, 17 Aug 2021 09:56:24 +0800
Subject: [PATCH] game

---
 resources/ping-pong-mips32/game/game/game.S | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/resources/ping-pong-mips32/game/game/game.S b/resources/ping-pong-mips32/game/game/game.S
index 6deaadb..1c18c99 100644
--- a/resources/ping-pong-mips32/game/game/game.S
+++ b/resources/ping-pong-mips32/game/game/game.S
@@ -200,19 +200,20 @@ kb_readbuffer:
     sll t1, random, 3
     subu t1, t1, random
     addu random, random, t1
-    sra t1, random, 7
+    srl t1, random, 7
     xor random, random, t1
-    addi random, random, 5
+    addiu random, random, 5
     xor random, random, t5
-    sra t3, random, 2
-    andi t3, t3, 0x7
+    srl t3, random, 2
     la t2, spx_table
-    add t3, t3, t2
-    lw ball_spx, 0(t3)
-    sra t3, random, 5
     andi t3, t3, 0x7
+    addu t3, t3, t2
+    lw ball_spx, 0(t3)
+    srl t3, random, 5
     la t2, spy_table
-    add t3, t3, t2
+    andi t3, t3, 0x7
+    addu t3, t3, t2
+    sub ball_x, ball_x, ball_dx
     lw ball_spy, 0(t3)
     sub ball_x, ball_x, ball_dx
     j GAME_START