zig

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subxf3.zig (399B) - Raw

      1 const std = @import("std");
      2 const common = @import("./common.zig");
      3 
      4 pub const panic = common.panic;
      5 
      6 comptime {
      7     @export(&__subxf3, .{ .name = "__subxf3", .linkage = common.linkage, .visibility = common.visibility });
      8 }
      9 
     10 fn __subxf3(a: f80, b: f80) callconv(.c) f80 {
     11     var b_rep = std.math.F80.fromFloat(b);
     12     b_rep.exp ^= 0x8000;
     13     const neg_b = b_rep.toFloat();
     14     return a + neg_b;
     15 }