From 4f11e9b0b336af11c291c0feace9f0af3744fe73 Mon Sep 17 00:00:00 2001
From: Iru Cai <mytbk920423@gmail.com>
Date: Tue, 11 May 2021 20:18:17 +0800
Subject: move out rand(), srand()

---
 asm/rich4_clib.asm | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'asm/rich4_clib.asm')

diff --git a/asm/rich4_clib.asm b/asm/rich4_clib.asm
index cb550e5..9ed1133 100644
--- a/asm/rich4_clib.asm
+++ b/asm/rich4_clib.asm
@@ -8,6 +8,10 @@ extern ref_00488f60
 extern ref_00488f64
 extern ref_004991d4
 
+global clib_rand
+global clib_srand
+extern ref_00488f4c
+
 section .text
 
 fcn_00457366:
@@ -97,4 +101,34 @@ add esp, 8
 pop ebx
 ret
 
+fcn_00456f23:
+call dword [ref_00488f4c]  ; ucall: call dword [0x488f4c]
+add eax, 0xc
+ret
+
+clib_rand:
+call fcn_00456f23  ; call 0x456f23
+test eax, eax
+jne short loc_00456f37  ; jne 0x456f37
+ret
+
+loc_00456f37:
+imul edx, dword [eax], 0x41c64e6d
+add edx, 0x3039
+mov dword [eax], edx
+mov eax, edx
+shr eax, 0x10
+and eax, 0x7fff
+ret
+
+clib_srand:
+call fcn_00456f23  ; call 0x456f23
+test eax, eax
+je short loc_00456f5f  ; je 0x456f5f
+mov edx, dword [esp + 4]
+mov dword [eax], edx
+
+loc_00456f5f:
+ret
+
 section .data
-- 
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