Thank you all for informations. Regards, Nemanja
----- Original Message ----- From: "Dave Hudson" <[EMAIL PROTECTED]> To: "Alan Lehotsky" <[EMAIL PROTECTED]>; "Nemanja Popov" <[EMAIL PROTECTED]>; <gcc@gcc.gnu.org>
Sent: Wednesday, April 05, 2006 7:21 PM Subject: RE: GCC port for V8-uRISC (8 bit CPU)
FWIW we did get really great code generation for the IP2k in the end although it took some rather unpleasant machine-dependent-reorg stuff to work around the fact almost every instruction used a singe 8-bit accumulator registerr :-) Other ports to look at would be the AVR (8-bit RISC with 32 registers) and 68HC11 (more traditional accumulator-style 8-bit CPU). The AVR is a pretty nice clean port. Regards, Dave * -----Original Message----- * From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On * Behalf Of Alan Lehotsky * Sent: 05 April 2006 17:49 * To: Nemanja Popov; gcc@gcc.gnu.org * Subject: Re: GCC port for V8-uRISC (8 bit CPU) * * I participated in a port to an 8-bit internet toaster 4 years * ago (the Ubicom IP2k chip). * * It's distributed as part of the gcc-3.x releases, but has * been dropped from the gcc-4.x distributions. * * The IP2k was a very restrictive environment, and it took a * lot of work to get it to generate really tight code. * I'd definely suggest looking at gcc/config/ip2k to see how we * did it.... * * -----Original Message----- * >From: Nemanja Popov <[EMAIL PROTECTED]> * >Sent: Apr 5, 2006 9:50 AM * >To: gcc@gcc.gnu.org * >Subject: GCC port for V8-uRISC (8 bit CPU) * > * >Hi, * > * >Can somebody please explain to me is it reasonable and * possible to port * >gcc (version 4.xx) to 8 bit cpu architecture. * >I would appreciate precise explanation why it is possible or not. * > * >CPU is V8-uRISC. * > * >V8-uRISC Features are: * > * > 8-bit ALU * > 64K byte addressing capability * > Accumulator (R0) * > Seven 8-bit General Purpose Registers (R1-R7) Multiple register * > banks are easily implemented 16-bit Program Counter and * Stack Pointer * > * >Thanks in advance for all informations. * >Regards, * >Nemanja Popov * > * * * __________ NOD32 1.1473 (20060405) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com
