https://psx.amidog.se/ 2026-04-04T13:47:00+02:00 https://psx.amidog.se/ https://psx.amidog.se/lib/tpl/vector/images/favicon.ico text/html 2012-09-18T11:39:25+02:00 https://psx.amidog.se/doku.php?id=psx:gte:flags&rev=1347961165&do=diff The GTE flags looked fairly straight forward, until I made some tests using the MVMVA opcode and got a flag mask looking like this: 0xffc00000 As you can see, all A-flags, both negative and positive, are set. All B-flags are also set, but that was expected. text/html 2012-10-23T13:26:39+02:00 https://psx.amidog.se/doku.php?id=psx:gte:opcodes&rev=1350991599&do=diff The GTE has a total of 22 official and documented funcions. But as it turns out, there are actually 64 functions (lower 6 bits of opcode decides function). Most functions can have their behavior changed by using the SF and LM, and in the case of the MVMVA funcion, CV, V and MX opcode bits.