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ATI VGA Wonder-16

ATI VGA Wonder-16

Thanks to the OS/2 Museum, we now have the contents of the ROMs on the ATI VGA Wonder-16; specifically, the 1988 “REV 2” board (P/N 109004800) containing ROM version V3-1.02.

Each ROM chip apparently contains 32Kb of data, but only the upper 16Kb of each chip is used. So we take the two 32Kb files:

VGA_Wonder_V3-1.02_EVEN.BIN
VGA_Wonder_V3-1.02_ODD.BIN

and merge them into a single 64Kb file, using the PCjs FileImage utility:

cd 1988-11-11
fileimage.js --file=archive/VGA_Wonder_V3-1.02_EVEN.BIN --merge=archive/VGA_Wonder_V3-1.02_ODD.BIN --format=rom --output=archive/VGA_Wonder_V3-1.02.rom

Then, within the resulting 64Kb file, we extract the ROM code+data from the upper 32Kb:

fileimage.js --file=archive/VGA_Wonder_V3-1.02.rom --offset=32768 --output=VGA_Wonder_V3-1.02.json5 --comments

And now we have a JSON-encoded ROM image that PCjs machines can load.

Here are the first 12 lines from VGA_Wonder_V3-1.02.json5:

0x55,0xAA,0x40,0xEB,0x63,0x37,0x34,0x30,0x30,0x3E,0xFF,0xFF,0x81,0x00,0x88,0x2C, // 0x00000000 U.@.c7400......,
0xCE,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x49,0x42, // 0x00000010 ..............IB
0x4D,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // 0x00000020 M...............
0x20,0x37,0x36,0x31,0x32,0x39,0x35,0x35,0x32,0x30,0x00,0x00,0x00,0x00,0x00,0x00, // 0x00000030  761295520......
0x33,0x31,0x01,0x31,0x4D,0x20,0xB0,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x00,0x00, // 0x00000040 31.1M ..........
0x31,0x39,0x38,0x38,0x2F,0x31,0x31,0x2F,0x31,0x31,0x20,0x31,0x37,0x3A,0x31,0x31, // 0x00000050 1988/11/11 17:11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8,0x40,0x00,0xCB,0x0E,0x07,0xBD,0x81, // 0x00000060 .........@......
0x00,0xB8,0x01,0x13,0xBB,0x07,0x00,0xB9,0x29,0x00,0x90,0xBA,0x00,0x00,0xCD,0x6D, // 0x00000070 ........)......m
0xC3,0x0D,0x0A,0x41,0x54,0x49,0x20,0x56,0x47,0x41,0x20,0x57,0x6F,0x6E,0x64,0x65, // 0x00000080 ...ATI VGA Wonde
0x72,0x20,0x42,0x69,0x6F,0x73,0x2C,0x20,0x56,0x65,0x72,0x73,0x69,0x6F,0x6E,0x20, // 0x00000090 r Bios, Version 
0x56,0x33,0x2D,0x31,0x2E,0x30,0x32,0x20,0x0D,0x0A,0x00,0x1E,0x06,0x57,0x56,0x55, // 0x000000A0 V3-1.02 .....WVU
0x52,0x51,0x53,0x50,0xBA,0xE8,0x46,0xB0,0x16,0xEE,0xBA,0x02,0x01,0xB0,0x01,0xEE, // 0x000000B0 RQSP..F.........

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