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-rw-r--r--src/math/i386/floor.s67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/math/i386/floor.s b/src/math/i386/floor.s
new file mode 100644
index 00000000..46ba88db
--- /dev/null
+++ b/src/math/i386/floor.s
@@ -0,0 +1,67 @@
+.global floorf
+.type floorf,@function
+floorf:
+ flds 4(%esp)
+ jmp 1f
+
+.global floorl
+.type floorl,@function
+floorl:
+ fldt 4(%esp)
+ jmp 1f
+
+.global floor
+.type floor,@function
+floor:
+ fldl 4(%esp)
+1: mov $0x7,%al
+1: fstcw 4(%esp)
+ mov 5(%esp),%ah
+ mov %al,5(%esp)
+ fldcw 4(%esp)
+ frndint
+ mov %ah,5(%esp)
+ fldcw 4(%esp)
+ ret
+
+.global ceil
+.type ceil,@function
+ceil:
+ fldl 4(%esp)
+ mov $0xb,%al
+ jmp 1b
+
+.global ceilf
+.type ceilf,@function
+ceilf:
+ flds 4(%esp)
+ mov $0xb,%al
+ jmp 1b
+
+.global ceill
+.type ceill,@function
+ceill:
+ fldt 4(%esp)
+ mov $0xb,%al
+ jmp 1b
+
+.global trunc
+.type trunc,@function
+trunc:
+ fldl 4(%esp)
+ mov $0xf,%al
+ jmp 1b
+
+.global truncf
+.type truncf,@function
+truncf:
+ flds 4(%esp)
+ mov $0xf,%al
+ jmp 1b
+
+.global truncl
+.type truncl,@function
+truncl:
+ fldt 4(%esp)
+ mov $0xf,%al
+ jmp 1b