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== History == | == History == | ||
{{main|arm/history|l1=ARM's History}} | {{main|arm/history|l1=ARM's History}} | ||
− | The '''ARM1''' (Acorn [[RISC]] Machine 1) is Acorn Computers' first microprocessor design. The ARM1 was the initial result of the ''Advanced Research and Development'' division Acorn Computers formed in order to advance the development of their own [[RISC]] processor. The ARM instruction set design started in 1983. | + | The '''ARM1''' (Acorn [[RISC]] Machine 1) is Acorn Computers' first microprocessor design. The ARM1 was the initial result of the ''Advanced Research and Development'' division Acorn Computers formed in order to advance the development of their own [[RISC]] processor. The ARM instruction set design started in 1983. In April 1985, after 6 man-years of design effort, the first ARM processor prototype was delivered. The first batch of prototypes were functional and were shipped to customers in the form of evaluation systems. At that time the ARM1 was the simplest RISC processor produced. |
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Originally intended to perform at roughly 1.5 times performance of the {{decc|VAX 11/780}}, the prototypes ended up achieveing between 2x to 4x the performance of the [[DEC]] {{decc|VAX 11/780}}; this is roughly equivalent to 10 times that of that original [[IBM]] {{ibm|PC AT}} or that of the [[Motorola]] {{motorola|68020}} operating at 16.67 MHz. | Originally intended to perform at roughly 1.5 times performance of the {{decc|VAX 11/780}}, the prototypes ended up achieveing between 2x to 4x the performance of the [[DEC]] {{decc|VAX 11/780}}; this is roughly equivalent to 10 times that of that original [[IBM]] {{ibm|PC AT}} or that of the [[Motorola]] {{motorola|68020}} operating at 16.67 MHz. |
Facts about "ARM1 - Microarchitectures - Acorn"
codename | ARM1 + |
core count | 1 + |
designer | Acorn Computers + |
first launched | 1985 + |
full page name | acorn/microarchitectures/arm1 + |
instance of | microarchitecture + |
instruction set architecture | ARMv1 + |
manufacturer | VLSI Technology + |
microarchitecture type | CPU + |
name | ARM1 + |
pipeline stages | 3 + |
process | 3,000 nm (3 μm, 0.003 mm) + |