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Diffstat (limited to 'xorg-server/hw/xfree86/os-support/shared/inout.S')
-rw-r--r--xorg-server/hw/xfree86/os-support/shared/inout.S111
1 files changed, 111 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/shared/inout.S b/xorg-server/hw/xfree86/os-support/shared/inout.S
new file mode 100644
index 000000000..80c47c419
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/shared/inout.S
@@ -0,0 +1,111 @@
+/* $XConsortium: inout.s /main/6 1996/02/21 17:53:35 kaleb $ */
+
+
+
+
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/shared/inout.S,v 1.1 1999/07/10 07:24:52 dawes Exp $ */
+
+#include "assyntax.h"
+
+/*
+ * Make i80386 io primitives available at C-level.
+ */
+
+ FILE("inout.s")
+ AS_BEGIN
+ SEG_TEXT
+
+/*
+ *-----------------------------------------------------------------------
+ * inb ---
+ * Input one byte.
+ *
+ * Results:
+ * Byte in al.
+ *-----------------------------------------------------------------------
+ */
+ GLOBL GLNAME(inb)
+GLNAME(inb):
+ MOV_L (REGOFF(4,ESP),EDX)
+ SUB_L (EAX,EAX)
+ IN_B
+ RET
+
+/*
+ *-----------------------------------------------------------------------
+ * outb ---
+ * Output one byte.
+ *
+ * Results:
+ * None.
+ *-----------------------------------------------------------------------
+ */
+ GLOBL GLNAME(outb)
+GLNAME(outb):
+ MOV_L (REGOFF(4,sp),EDX)
+ MOV_L (REGOFF(8,sp),EAX)
+ OUT_B
+ RET
+/*
+ *-----------------------------------------------------------------------
+ * inw ---
+ * Input one 16-bit word.
+ *
+ * Results:
+ * Word in ax.
+ *-----------------------------------------------------------------------
+ */
+ GLOBL GLNAME(inw)
+GLNAME(inw):
+ MOV_L (REGOFF(4,ESP),EDX)
+ IN_W
+ RET
+
+/*
+ *-----------------------------------------------------------------------
+ * outw ---
+ * Output one 16-bit word.
+ *
+ * Results:
+ * None.
+ *-----------------------------------------------------------------------
+ */
+ GLOBL GLNAME(outw)
+GLNAME(outw):
+ MOV_L (REGOFF(4,ESP),EDX)
+ MOV_L (REGOFF(8,ESP),EAX)
+ OUT_W
+ RET
+
+/*
+ *-----------------------------------------------------------------------
+ * inl ---
+ * Input one 32-bit longword.
+ *
+ * Results:
+ * Word in eax.
+ *-----------------------------------------------------------------------
+ */
+ GLOBL GLNAME(inl)
+GLNAME(inl):
+ MOV_L (REGOFF(4,ESP),EDX)
+ IN_L
+ RET
+
+/*
+ *-----------------------------------------------------------------------
+ * outl ---
+ * Output one 32-bit longword.
+ *
+ * Results:
+ * None.
+ *-----------------------------------------------------------------------
+ */
+ GLOBL GLNAME(outl)
+GLNAME(outl):
+ MOV_L (REGOFF(4,ESP),EDX)
+ MOV_L (REGOFF(8,ESP),EAX)
+ OUT_L
+ RET
+