26 lines
718 B
Zig
26 lines
718 B
Zig
const common = @import("./common.zig");
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const addf3 = @import("./addf3.zig").addf3;
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pub const panic = common.panic;
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comptime {
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if (common.want_aeabi) {
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@export(__aeabi_dsub, .{ .name = "__aeabi_dsub", .linkage = common.linkage, .visibility = common.visibility });
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} else {
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@export(__subdf3, .{ .name = "__subdf3", .linkage = common.linkage, .visibility = common.visibility });
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}
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}
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fn __subdf3(a: f64, b: f64) callconv(.C) f64 {
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return sub(a, b);
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}
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fn __aeabi_dsub(a: f64, b: f64) callconv(.AAPCS) f64 {
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return sub(a, b);
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}
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inline fn sub(a: f64, b: f64) f64 {
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const neg_b = @as(f64, @bitCast(@as(u64, @bitCast(b)) ^ (@as(u64, 1) << 63)));
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return addf3(f64, a, neg_b);
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}
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