ref: 9f76a7f6819ac04552b4fb6588156f3e4089d1d7
parent: ccd7f9f1597e56d121e1d05cf6af86f688ef2c48
parent: 4bc20df7142ce5e02c7fb49a33eefdc7715ff726
author: henesy <devnull@localhost>
date: Mon Nov 12 00:33:38 EST 2018
merge
--- a/FreeBSD/386/include/lib9.h
+++ b/FreeBSD/386/include/lib9.h
@@ -473,3 +473,31 @@
#define setbinmode()
+/* floating point things to get it to build. (stolen from netbsd) */
+
+/* FCR */
+#define FPINEX (1<<5)
+#define FPUNFL ((1<<4)|(1<<1))
+#define FPOVFL (1<<3)
+#define FPZDIV (1<<2)
+#define FPINVAL (1<<0)
+#define FPRNR (0<<10)
+#define FPRZ (3<<10)
+#define FPRPINF (2<<10)
+#define FPRNINF (1<<10)
+#define FPRMASK (3<<10)
+#define FPPEXT (3<<8)
+#define FPPSGL (0<<8)
+#define FPPDBL (2<<8)
+#define FPPMASK (3<<8)
+/* FSR */
+#define FPAINEX FPINEX
+#define FPAOVFL FPOVFL
+#define FPAUNFL FPUNFL
+#define FPAZDIV FPZDIV
+#define FPAINVAL FPINVAL
+
+extern void setfcr(ulong);
+extern void setfsr(ulong);
+extern ulong getfcr(void);
+extern ulong getfsr(void);
--- /dev/null
+++ b/lib9/setfcr-FreeBSD-386.S
@@ -1,0 +1,34 @@
+
+#define FN(x) .type x,@function; .global x; x
+#define ENT subl $16, %esp
+#define RET addl $16, %esp; ret
+
+ .file "setfcr-Linux-386.S"
+FN(setfcr):
+ ENT
+ xorb $0x3f, %al
+ movl %eax, (%esp)
+ fwait
+ fldcw (%esp)
+ RET
+
+FN(getfcr):
+ ENT
+ fwait
+ fstcw (%esp)
+ movw (%esp), %ax
+ andl $0xffff, %eax
+ xorb $0x3f, %al
+ RET
+
+FN(getfsr):
+ ENT
+ fwait
+ fstsw (%esp)
+ movw (%esp), %ax
+ andl $0xffff, %eax
+ RET
+
+FN(setfsr):
+ fclex
+ ret