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| Thema: 8088 MPH: We Break All Your Emulators | Antwort auf: Aaahhh-maziiihiing Gaaames von Icheherntion | |
| Unlängst habe ich ja noch über CGA-Grafik gelästert, aber das kommt dabei raus, wenn man ein paar Wahnsinnige an alte Hardware lässt: [https://www.youtube.com/watch?v=yHXx3orN35Y] Wohlgemerkt Hardware, Emulatoren sind damit wohl (noch) überfordert: [http://trixter.oldskool.org/2015/04/07/8088-mph-we-break-all-your-emulators/] Gelesen habe ich es noch nicht, aber Sie erklären wohl alles, was sie dabei angestellt haben. HW-Anforderungen sind: 4.77 MHz 8088 CPU. 5 MHz seems like a lot compared to other 8-bit micros, but it takes the CPU 4 cycles to read a single byte. So, compared to other 8-bit CPUs like the 6502, 6809, or Z80 which can read a byte in one clock cycle, the effective clock speed of the 8088 is more like (4.77 / 4) = 1.19 MHz. Video adapter that has a 9-pin RGBI interface and an RCA NTSC composite video interface. Driven by a Motorola 6845 character generator. No facilities for changing text characters; font is fixed. Internal speaker; no sound card like the Sound Blaster, or special sound hardware like the C64 SID. Speaker can be driven by a timer pin to produce a square wave, or can be bit-banged directly via a port or a one-shot timer. Falls jemand noch so was im Keller hat. |
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