// Credit: taken from `rp-hal` (also licensed Apache+MIT) // https://github.com/rp-rs/rp-hal/blob/main/rp2040-hal/src/float/cmp.rs use super::Float; use crate::rom_data; trait ROMCmp { fn rom_cmp(self, b: Self) -> i32; } impl ROMCmp for f32 { fn rom_cmp(self, b: Self) -> i32 { rom_data::float_funcs::fcmp(self, b) } } impl ROMCmp for f64 { fn rom_cmp(self, b: Self) -> i32 { rom_data::double_funcs::dcmp(self, b) } } fn le_abi(a: F, b: F) -> i32 { if a.is_nan() || b.is_nan() { 1 } else { a.rom_cmp(b) } } fn ge_abi(a: F, b: F) -> i32 { if a.is_nan() || b.is_nan() { -1 } else { a.rom_cmp(b) } } intrinsics! { #[slower_than_default] #[bootrom_v2] #[alias = __eqsf2, __ltsf2, __nesf2] extern "C" fn __lesf2(a: f32, b: f32) -> i32 { le_abi(a, b) } #[slower_than_default] #[bootrom_v2] #[alias = __eqdf2, __ltdf2, __nedf2] extern "C" fn __ledf2(a: f64, b: f64) -> i32 { le_abi(a, b) } #[slower_than_default] #[bootrom_v2] #[alias = __gtsf2] extern "C" fn __gesf2(a: f32, b: f32) -> i32 { ge_abi(a, b) } #[slower_than_default] #[bootrom_v2] #[alias = __gtdf2] extern "C" fn __gedf2(a: f64, b: f64) -> i32 { ge_abi(a, b) } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_fcmple(a: f32, b: f32) -> i32 { (le_abi(a, b) <= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_fcmpge(a: f32, b: f32) -> i32 { (ge_abi(a, b) >= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_fcmpeq(a: f32, b: f32) -> i32 { (le_abi(a, b) == 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_fcmplt(a: f32, b: f32) -> i32 { (le_abi(a, b) < 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_fcmpgt(a: f32, b: f32) -> i32 { (ge_abi(a, b) > 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_dcmple(a: f64, b: f64) -> i32 { (le_abi(a, b) <= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_dcmpge(a: f64, b: f64) -> i32 { (ge_abi(a, b) >= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_dcmpeq(a: f64, b: f64) -> i32 { (le_abi(a, b) == 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_dcmplt(a: f64, b: f64) -> i32 { (le_abi(a, b) < 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "aapcs" fn __aeabi_dcmpgt(a: f64, b: f64) -> i32 { (ge_abi(a, b) > 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __gesf2vfp(a: f32, b: f32) -> i32 { (ge_abi(a, b) >= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __gedf2vfp(a: f64, b: f64) -> i32 { (ge_abi(a, b) >= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __gtsf2vfp(a: f32, b: f32) -> i32 { (ge_abi(a, b) > 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __gtdf2vfp(a: f64, b: f64) -> i32 { (ge_abi(a, b) > 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __ltsf2vfp(a: f32, b: f32) -> i32 { (le_abi(a, b) < 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __ltdf2vfp(a: f64, b: f64) -> i32 { (le_abi(a, b) < 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __lesf2vfp(a: f32, b: f32) -> i32 { (le_abi(a, b) <= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __ledf2vfp(a: f64, b: f64) -> i32 { (le_abi(a, b) <= 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __nesf2vfp(a: f32, b: f32) -> i32 { (le_abi(a, b) != 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __nedf2vfp(a: f64, b: f64) -> i32 { (le_abi(a, b) != 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __eqsf2vfp(a: f32, b: f32) -> i32 { (le_abi(a, b) == 0) as i32 } #[slower_than_default] #[bootrom_v2] extern "C" fn __eqdf2vfp(a: f64, b: f64) -> i32 { (le_abi(a, b) == 0) as i32 } }