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| | Technical Note OV16: Gestalt & _SysEnvirons - A Never-Ending Story |
 | | Some CPUs, such as the Macintosh IIsi, may have optional, user-installed FPUs; therefore, an application should not assume that any Macintosh with a microprocessor greater than a 68000 (for example, 68020, 68030, or 68040) has an FPU (68881/68882 or built-in for the 68040). |
 | | selector for the new Power Macintosh's, for the PowerBook Duo 280 and 280c, for the Quadra 630, for the PowerBook 150, and for the PowerBook 520, the 520c, the 540, and the 540c. |
 | | selector for the Macintosh Quadra 605, 610, 650, and 840AV, Macintosh Centris 660AV, Macintosh PowerBook 145b, 165, and 180c, Macintosh Duo 250, and 270c, Macintosh TV, and Macintosh LC 475, 550 and 575. |
| developer.apple.com /technotes/ov/ov_16.html (2194 words) |
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