X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=device%2Flib%2F_uint2fs.c;h=bf752b02245eeded3583c5bcd7f4764461cbdd07;hb=4e85b590d59de032a494ad439773f94d845db0f4;hp=9b443fa9c70107f83adf5a1b3ffe92eb3f4cf2c7;hpb=61da3cca8ba3e73617d60a8a50b31e541af74103;p=fw%2Fsdcc diff --git a/device/lib/_uint2fs.c b/device/lib/_uint2fs.c index 9b443fa9..bf752b02 100644 --- a/device/lib/_uint2fs.c +++ b/device/lib/_uint2fs.c @@ -1,6 +1,51 @@ +/* Floating point library in optimized assembly for 8051 + * Copyright (c) 2004, Paul Stoffregen, paul@pjrc.com + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#define SDCC_FLOAT_LIB #include + +#ifdef FLOAT_ASM_MCS51 + +// float long __uint2fs (float x) +static void dummy(void) _naked +{ + _asm + .globl ___uint2fs +___uint2fs: + clr a + mov r4, dph + mov r3, dpl + mov r2, a + mov r1, a + mov a, #142 + ljmp ulong2fs_doit + _endasm; +} + +#else + + + /* convert unsigned int to float */ float __uint2fs (unsigned int ui) { return __ulong2fs(ui); } + +#endif +