Computer Hints

Sigma 9

From the front panel, setting the address uses the lower switches.

Indexing with indirect happens after the indirect; i.e. (@24-bit_address) + index * wordsize

PDP-12

The registers in LINC mode live at locations 00 to 17 of the Instruction Field. Register 00 is overwritten by any JMP instruction.

The Beta instructions use indirect. If bit 1 is zero then it uses the Instruction Field. If bit 1 is one then it uses the Data Field. Bit 0 is ignored.

Excel

My Excel Macros.

Excel VBA Rotate Shape about the Top or Bottom.

More 'Puter Info

The Microsoft Paint Palette, when saving to GIF is NOT the web-safe palette. Here it is, for VB6 consumption.