Nouvelle version pour cet \u00e9mulateur Altair\/Imsai 8080 encore en d\u00e9veloppement.
\nVoici le paquet de news:<\/p>\n
emt_traps.c
\n===========
\n* Minor changes\/corrections for use with new CP\/M file exchange utilities.<\/p>\n
i8080.c
\n=======
\n* Changed opcode mapping for 0x10 to \u00ab\u00a0nop\u00a0\u00bb from \u00ab\u00a0nul\u00a0\u00bb as 4kBASIC seems to
\n\tcall this undocumented (\u00ab\u00a0Intel Reserved\u00a0\u00bb) opcode (either accidently
\n\tor for an unknown reason) and we want to avoid trapping the debugger.
\n\tMay also need to change 08, 18, 20, 28, 30 and 38 to \u00ab\u00a0nop\u00a0\u00bb from \u00ab\u00a0nul\u00a0\u00bb,
\n\tcb to c3 (jmp), d9 to c9 (return) and dd and fd to cd (call). Cannot change
\n\ted to cd (call) as that’s the trap for file import\/export operations
\n\t(Tim Mann).
\n* Proposed changes to LDAX\/STAX as workaround for \u00ab\u00a0Kill the Bit\u00a0\u00bb game which relies
\n\ton a live address \u00ab\u00a0on the bus\u00a0\u00bb. PC is really an address bus buffer, so for
\n\tthis game to work, PC has to reflect any address, not just the emulated
\n\tprogram counter. This issue also effects 28 other CPU instuctions.
\n\tImplementing the changes to all of the effected instructions would likely
\n\tslow the emulation execution greatly. Probably will only make changes
\n\t\u00ab\u00a0as needed\u00a0\u00bb to support FP programs as reported.
\n* Added i8080 \u00ab\u00a0internal temporary\u00a0\u00bb register WZ to the CPU struct.
\n* Fred Scipione::Changes to several routines to streamline execution and eliminate
\n\tunneeded calculations when evaluating conditionals.<\/p>\n
scheduler.c
\n===========
\n* Rodger Smedley::added code in scheduler loop to poll the TCP connection
\n\tduring the current timeslice and stuff a buffer. Polling effectively
\n\toccurs 100 times per second. Under previous structure, polling was
\n\toccurring 83333 times per second (at an emulated 2MHz).
\n* Scott LaBombard::reworked SYS_DoTimeslicing to drastically reduce host loading.<\/p>\n
tcp_io.c
\n========
\n* Rodger Smedley::changes to several routines to support timesliced polling.<\/p>\n
syscfg.c
\n========
\n* Changed default CPU speed to 2.04MHz, only slightly faster than the prototypical 2.00MHz.
\n* Minor fixes to eliminate compiler warnings in MSVC7.<\/p>\n
wincon_io.c
\n===========
\n* Fred Scipione::added color changes for the VT100 Dim and Underlined attributes.<\/h5>\n