Jackson petitioned the City of Hampton to be able to learn next to her white peers. She won, completed the courses, and was promoted to engineer in 1958, making her NASA's first African-American female engineer-and, perhaps, the only one for much of her career. While these three women's stories remain front and center, John Glenn's recent death makes this film particularly timely. Featured prominently, Glenn is depicted as a goal-oriented, joke-making, tension-cutting, folksy, equal opportunist. According to Barry, that's pretty much exactly how he was. Barry also notes that there's an "easter egg" in the film that most people who aren't deep into NASA history will not catch. There's a short scene where Glenn is talking to reporters, and beside him there's a woman-Cece Bibby-painting the Friendship Seven logo onto the spacecraft. The true story is that NASA officials originally did not allow Bibby access to the launch pad, but Glenn intervened and insisted that his artist be allowed to do her job.
The C64 has 255 predefined character blocks, called PETSCII. The character set can be copied into RAM and altered by a programmer. There are two colour modes, high resolution, with two colours available per character block (one foreground and one background) and multicolour with four colours per character block (three foreground and one background). In multicolour mode, attributes are shared between pixel pairs, so the effective visible resolution is 160×200 pixels. This is necessary since only 16 KB of memory is available for the VIC-II video processor. As the C64 has a bitmapped screen, it is possible to draw each pixel individually. This is, however, very slow. Most programmers used techniques developed for earlier non-bitmapped systems, like the Commodore PET and TRS-80. A programmer redraws the character set and the video processor fills the screen block by block from the top left corner to the bottom right corner. Two different types of animation are used: character block animation and hardware sprites.
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