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http://fivedots.coe.psu.ac.th/~cj/masd/resources/sdcc-doc/SDCCUdoc-15.html
15. Floating point support. SDCC supports IEEE (single precision 4bytes) floating point numbers.The floating point support routines are derived from gcc's floatlib.c and consists of the following routines.
https://sourceforge.net/p/sdcc/mailman/message/10959265/
sdcc-user [Sdcc-user] no floating point support for Z80? [Sdcc-user] no floating point support for Z80? From: <aldebaro@uf...> - 2003-12-18 05:01:09 ...
https://sourceforge.net/p/sdcc/feature-requests/599/
Currently SDCC has an IEEE-like float (using the IEEE representation, but not supporting denormalized numbers). I note in the SDCC support files that the 8051 is the only platform with an assembly floating point library.. Recently, I finished a mostly standard (like SDCC) IEEE 32 bit floating point library, for z80, z180, and z80n devices, that could be integrated into the same files in a ...
http://ecee.colorado.edu/~mcclurel/sdccman_2.6.0.pdf
SDCC (Small Device C Compiler) is an open source, retargettable, optimizing ANSI-C compiler bySandeep Dutta designed for 8 bit Microprocessors. The …
http://www.keil.com/support/docs/294.htm
Jan 10, 2014 · QUESTION: Does the Keil C Compiler for the 8051 support floating-point numbers? Where can I get more information about floating point numbers? I have been programming 8031 chips with PL/M-51 for a number of years. Apparently, the PL/M compiler does not support floating-point numbers. I needed to ...
https://www.infineon.com/dgdl/AP0806510_XC800_Migration_Keil_2_SDCC.pdf?folderId=db3a30431375fb1a01138c57204603bd&fileId=db3a304314dca389011517efc5860d61&ack=t
6 Double Precision Floating Point Support Keil has support for double precision floating point where as SDCC does not have support for the same. If any variable is declared as double, SDCC issues a warning and assumes it as a float. Note: SDCC supports the float data type in large memory model only where as Keil supports float in small
https://github.com/z88dk/z88dk/issues/64
Feb 09, 2017 · SDCC supports (single precision 4 bytes) floating point numbers; the format is somewhat similar to IEEE, but it is not IEEE; in particular, denormalized floating -point numbers are not supported. it comes in at about 5k larger than math48. The floating point …
http://sdcc.sourceforge.net/doc/sdccman.pdf
1With SDCC version 3.2.0 the sdcclib utility is deprecated. Sdar utility should be used to create sdcc object file archives. Sdcclib utility will become obsolete in one of next sdcc releases and will be removed from sdcc packages. 2
https://feilipu.me/tag/floating-point-processor/
For example, from the Am9511/Am9512 Floating Point Processor Manual by Steven Cheng, we have comparison tables. On average the Am9511A APU (at 1.966MHz) produces a hardware floating point divide in 165.9 cycles (of a 2MHz 8080 processor). Converted to my Am9511A implementation (at 2.304MHz), we have the equivalent in 141.5 cycles of the 2MHz 8080.
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