hartvig@freja.dk (Hartvig Ekner) (08/16/88)
Hello, I'm looking for a translator (public domain with source if possible) that can translate Z80 assembler to 8086 (source -> source). I have about 20000 lines of Z80 that must be rewritten to run on a PC, and even if the translator only does part of the job, it would be a great help. Thanks in advance, Hartvig Ekner ...mcvax!diku!hartvig
leif@ambone.UUCP (Leif Andrew Rump) (08/17/88)
hartvig@freja.dk (Hartvig Ekner) writes: >I'm looking for a translator (public domain with source if possible) >that can translate Z80 assembler to 8086 (source -> source). I have >about 20000 lines of Z80 that must be rewritten to run on a PC, and even >if the translator only does part of the job, it would be a great help. It should be quite easy because the original 8088 was made to look like 8080 meaning the source-assembler-format is the same so you actually only need to substitude text to convert it! (Intel has some papers that explain how to do it). The Z80 is a superset of the 8080 as 8088 is a superset of 8080, so if you can get your code from Z80 to 8080 using the same method and from 8080 to 8088 your problems is solved! Except for on thing! Z80 has more commands than 8080 and 8080 has some special features that isn't included in 8088 but the most of the job should be faily easy... :-) >Thanks in advance, Your welcome Leif Andrew Rump, Ambrasoft A/S, Roejelskaer 15, DK-2840 Holte (Denmark) UUCP: leif@ambone.dk, phone: +45 2424 111; ABC BBS: +45 68 00 544 (2:505/38) Please note the node-change: Ambone, Italian for a pulpit (The following interpretations emerged Am_bone, Ambrasoft A/S bone when Ambone was put down on paper and Amb_one, Ambrasoft A/S #one accepted - they are solely mine!!!!!) ...
kirchner@uklirb.UUCP (Reinhard Kirchner) (08/26/88)
From article <135@ambone.UUCP>, by leif@ambone.UUCP (Leif Andrew Rump): > hartvig@freja.dk (Hartvig Ekner) writes: > > It should be quite easy because the original 8088 was made to look > like 8080 meaning the source-assembler-format is the same so you > actually only need to substitude text to convert it! (Intel has some > papers that explain how to do it). The Z80 is a superset of the 8080 > as 8088 is a superset of 8080, so if you can get your code from Z80 to > 8080 using the same method and from 8080 to 8088 your problems is > solved! Except for on thing! Z80 has more commands than 8080 and 8080 > has some special features that isn't included in 8088 but the most of > the job should be faily easy... :-) > The thing is not as easy as it looks. Years ago ( >=5 ) we got such a translator from intel to run on CP/M. With it came a handbook which showed how the special z80-opcodes are translated. We found out that most of them resulted in rather terrible 8086-code. This comes partly from the different use of the flags, so the 8086-code contained lots of save flags emulate 780-instr load flags save flags emulate z80-instr load flags . . The code was mostly correct, but very long and slow, so we had to rework it to make it usable. BTW: The code we translated was interpreter, runtime-system and arithmetic routines of PASCAL-SC, which is now available for the IBM-PC from Whiley in US and Teubner in Europe. ( Very modest price -:) ) R. Kirchner ( speaking for himself, what else )