--- trunk/src/cpus/README_DYNTRANS 2007/10/08 16:21:06 33 +++ trunk/src/cpus/README_DYNTRANS 2007/10/08 16:21:17 34 @@ -1,4 +1,9 @@ -$Id: README_DYNTRANS,v 1.12 2006/10/13 05:01:19 debug Exp $ +$Id: README_DYNTRANS,v 1.13 2007/02/11 10:47:30 debug Exp $ + +This README is old. Hm. + + +--------------------- Dyntrans TODO: @@ -31,45 +36,3 @@ (*) Delay slot in SHcompact? - x) instr_call sequence analysis support? (For handtuning combinations.) - - x) opcode statistics support? - TODO: is instr_call statistics enough? - - x) load/stores: - o) perhaps refactor/reuse common load/store code? - o) support for archs that allow transparent - unaligned load/stores (ppc, x86 etc) - o) alignment checks ==> exceptions - o) native byte order ==> faster loads, etc. - - x) actual cache emulation - - x) SMP: detect when an instruction such as ll/sc or cas is used, - and "synchronize" approximately the number of executed instructions - (or cycles) across all CPUs. - Problem: devices such as dev_mp don't work well with such a synch. - scheme. - - x) support for variable-length instructions (x86, m68k, i960, ...) - Current solution: ic->arg[0] contains the length of the - instruction (in bytes), and next_ic is - automatically updated. - Problem: what about instructions crossing a (virtual) - page boundary? They cannot be translated once - and for all :( and must be interpreted slowly! - - x) support for THUMB, MIPS16, userland SH (arm, mips, sh) - - x) support for Delay slots! (mips, sparc, hppa, SHcompact?) - - x) various register-window archs (SPARC etc) - - x) Alpha: hahaha, zapnot and inserts/extracts don't - compile into very nice code :-| fix this - Solution: if short assembly language snippets can be - compiled on the current host, then compile such snippets - for alpha_instr_zapnot etc. - - x) pc532? 6502? 6800? etc -