M21

Game Information
manufacturer Olivetti
year 1984
clone of ibm5150
other clones alphatp10 alphatp50 asst128 ataripc1 ataripc3 auvip800 bw230 cadd810 comdesk compc1 compc10 comport coppc21 coppc400 dgone dtkerso eagle1600 eaglepc2 eaglespirit earthst ec1840 ec1841 ec1842 ec1845 ec1847 eppc fraking hstrtpls hyo88t hyu16t hyu16te ibm5140 ibm5155 ibm5160 ibmpcjr ibmpcjx iskr1030m iskr1031 iskr3104 ittxtra juko16 juko8 kaypro16 kaypropc kyoxt laser_turbo_xt laser_xt3 ledgmodd ledgmodm m21 m24 m240 mbc16 mbc16lt mc1702 micro88 mk88 mononuxt mononuxt2 mpc1600 mpu9088vf mpx16 ncrpc4i ncrpc6 nixpc01 nms9100 olivm15 olivpc1 olystar20f olytext30 pc pc10iii pc20 pc200 pc2086 pc3086 pc5086 pc7000 pcega pcherc pcmda pcv20 pcvga poisk1 poisk2 ppc512 ppc640 sergeysxt sicpc1605 spc400d ssam88s sx16 t1000hx t1000rl t1000sl2 t1000sx t1000tl t1000tl2 t1000tx ta1700pc to16 tosh1000 vpcii xiprocessor zdsupers zdz150 zdz160 zdz180
genre N/A
downloads 40
Screenshots
m21 title
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Download Details
split set m21.zip 13.58k
parent set ibm5150.zip 79.93k ↗
bios/device cga_m24.zip 2.23k
bios/device m24_kbd.zip 1.45k
bios/device m24_z8000.zip 9.41k
standalone set m21.7z 24.15k
Game Details
Computer published 41 years ago:

M21 (c) 1984 Olivetti Prodest [Milan, Italy]

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=455375&o=2
Driver Details
source olivetti/m24.cpp
status preliminary
emulation preliminary
savestate unsupported
type graphics
overall imperfect
Screen Details
display mb1:cga_m24:screen
type raster
orientation horizontal
width 640px
height 400px
refresh 33.98mhz
Input Details
player 1
type mouse
buttons 3
directions N/A
player 1
type keyboard
buttons 83
directions N/A
player 2
type only_buttons
buttons 3
directions N/A
Chipset Details
name Intel 8086
clock 7.63mhz
name AM9517A
clock 3.81mhz
name Texas Instruments TMS7000
clock 3.81mhz
name Intel 8049
clock 5.72mhz
name Zilog Z8001
clock 3.81mhz
name Speaker
clock N/A
name Filtered DAC
clock N/A
name Speaker
clock N/A
name Floppy sound
clock 43.07khz
name Speaker
clock N/A
name Floppy sound
clock 43.07khz
ROM Details
name size crc
bios_m24_144_even.bin 8.00k 5f3d7084
bios_m24_144_odd.bin 8.00k 18fd8db8
pdbd.tms2516.kbdmcu_replacement_board.10u 2.00k b8c4c18a