- The 8085 microprocessor has two undocumented status flags: V and K. These flags can be reverse-engineered by looking at the silicon of the chip, and their function turns out to be different from previous explanations. In addition, the implementation of these flags shows that they were deliberately implemented, which raises the question of why they were not documented or supported by Intel. Finally, examining how these flag circuits were implemented in silicon provides an interesting look at how microprocessors are physically implemented.
- Elizabeth Siddal (Wikipedia)
Elizabeth Eleanor Siddall (25 July 1829 – 11 February 1862), better known as Elizabeth Siddal (a spelling she adopted in 1853), was an English artist, art model, and poet. Siddal was perhaps the most significant of the female models who posed for the Pre-Raphaelite Brotherhood. Their ideas of female beauty were fundamentally influenced and personified by her. Walter Deverell and William Holman Hunt painted Siddal, and she was the model for John Everett Millais’s famous painting Ophelia (1852). Early in her relationship with Dante Gabriel Rossetti, Siddal became his muse and exclusive model, and he portrayed her in almost all his early artwork depicting women.