pcsxr-1.9.92

1 files changed, 67 insertions, 0 deletions

diff --git a/plugins/dfxvideo/i386.asm b/plugins/dfxvideo/i386.asm
new file mode 100644
index 0000000..86d6e23
--- /dev/null
+++ b/plugins/dfxvideo/i386.asm
@@ -0,0 +1,67 @@
+; i386.asm  -  description
+; -------------------
+; begin                : Sun Nov 08 2001
+; copyright            : (C) 2001 by Pete Bernert
+; email                : BlackDove@addcom.de
+
+; ported from inline gcc to nasm by linuzappz
+
+
+; This program is free software; you can redistribute it and/or modify  *
+; it under the terms of the GNU General Public License as published by  *
+; the Free Software Foundation; either version 2 of the License, or     *
+; (at your option) any later version. See also the license.txt file for *
+; additional informations.                                              *
+
+
+bits 32
+
+section .text
+
+%include "macros.inc"
+
+NEWSYM i386_BGR24to16
+	push ebp
+	mov ebp, esp
+	push ebx
+	push edx
+	
+	mov eax, [ebp+8]            ; this can hold the G value
+	mov ebx, eax                ; this can hold the R value
+	mov edx, eax                ; this can hold the B value
+	shr ebx, 3                  ; move the R value
+	and edx, 00f80000h          ; mask the B value
+	shr edx, 9                  ; move the B value
+	and eax, 00f800h            ; mask the G value
+	shr eax, 6                  ; move the G value
+	and ebx, 0000001fh          ; mask the R value
+	or  eax, ebx                ; add R to G value
+	or  eax, edx                ; add B to RG value
+	pop edx
+	pop ebx
+	mov esp, ebp
+	pop ebp
+	ret
+
+NEWSYM i386_shl10idiv
+	push ebp
+	mov ebp, esp
+	push ebx
+	push edx
+
+	mov eax, [ebp+8]
+	mov ebx, [ebp+12]
+	mov edx, eax
+    shl eax, 10
+	sar edx, 22
+	idiv ebx
+
+	pop edx
+	pop ebx
+	mov esp, ebp
+	pop ebp
+	ret
+%ifidn __OUTPUT_FORMAT__,elf
+section .note.GNU-stack noalloc noexec nowrite progbits
+%endif
+