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33 lines
1.1 KiB
Markdown
33 lines
1.1 KiB
Markdown
The ATI Rage is a video card that comes bundled with early Power Mac G3s and New World Macs (like the first revisions of the iMac G3).
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# Memory Map
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The ATI Rage can usually be located at IOBase (ex.: 0xF3000000 for Power Mac G3 Beige) + 0x9000. However, the video memory appears to be at 0x81000000 and is capped at 8 MB.
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# Register Map
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| Register Name | Offset |
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|:-------------------:|:------:|
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| BUS_CNTL | 0xA0 |
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| EXT_MEM_CNTL | 0xAC |
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| MEM_CNTL | 0xB0 |
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| MEM_VGA_WP_SEL | 0xB4 |
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| MEM_VGA_RP_SEL | 0xB8 |
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| GEN_TEST_CNTL | 0xD0 |
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| CONFIG_CNTL | 0xDC |
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| CONFIG_CHIP_ID | 0xE0 |
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| CONFIG_STAT0 | 0xE4 |
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| DST_CNTL | 0x130 |
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| SRC_OFF_PITCH | 0x180 |
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| SRC_X | 0x184 |
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| SRC_Y | 0x188 |
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| SRC_Y_X | 0x18C |
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| SRC_WIDTH1 | 0x190 |
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| SRC_HEIGHT1 | 0x194 |
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| SRC_HEIGHT1_WIDTH1 | 0x198 |
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| SRC_CNTL | 0x1B4 |
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| SCALE_3D_CNTL | 0x1FC |
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| HOST_DATA0 | 0x200 |
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| HOST_CNTL | 0x240 |
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| DP_PIX_WIDTH | 0x2D0 |
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| DP_SRC | 0x2D8 | |