dingusppc/zdocs/developers/atirage.md

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). Its predecessor was the ATI Mach 64 GX, used in earlier Old World Macs.

# Memory Map

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.

# Register Map

| Register Name       | Offset |
|:-------------------:|:------:|
| BUS_CNTL            | 0xA0   |
| EXT_MEM_CNTL        | 0xAC   |
| MEM_CNTL            | 0xB0   |
| MEM_VGA_WP_SEL      | 0xB4   |
| MEM_VGA_RP_SEL      | 0xB8   |
| GEN_TEST_CNTL       | 0xD0   |
| CONFIG_CNTL         | 0xDC   |
| CONFIG_CHIP_ID      | 0xE0   |
| CONFIG_STAT0        | 0xE4   |
| DST_CNTL            | 0x130  |
| SRC_OFF_PITCH       | 0x180  |
| SRC_X               | 0x184  |
| SRC_Y               | 0x188  |
| SRC_Y_X             | 0x18C  |
| SRC_WIDTH1          | 0x190  |
| SRC_HEIGHT1         | 0x194  |
| SRC_HEIGHT1_WIDTH1  | 0x198  |
| SRC_CNTL            | 0x1B4  |
| SCALE_3D_CNTL       | 0x1FC  |
| HOST_DATA0          | 0x200  |
| HOST_CNTL           | 0x240  |
| DP_PIX_WIDTH        | 0x2D0  |
| DP_SRC              | 0x2D8  |
Initial expansion of documentation 2024-04-21 15:44:03 +00:00			`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). Its predecessor was the ATI Mach 64 GX, used in earlier Old World Macs.`
Documentation started for hardware 2020-03-01 17:58:09 +00:00
Documentation Update 2020-03-06 04:38:14 +00:00			`# Memory Map`
Documentation started for hardware 2020-03-01 17:58:09 +00:00
Documenation Update 3/7/2020 2020-03-07 22:40:46 +00:00			`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.`
Documentation Update 2020-03-06 04:38:14 +00:00
			`# Register Map`
Open Firmware is two words Not OpenFirmware. Also fixed a spelling mistake and removed some extra spaces. 2022-08-22 06:49:18 +00:00
Documentation Update 2020-03-06 04:38:14 +00:00			`\| Register Name \| Offset \|`
			`\|:-------------------:\|:------:\|`
			`\| BUS_CNTL \| 0xA0 \|`
			`\| EXT_MEM_CNTL \| 0xAC \|`
			`\| MEM_CNTL \| 0xB0 \|`
			`\| MEM_VGA_WP_SEL \| 0xB4 \|`
			`\| MEM_VGA_RP_SEL \| 0xB8 \|`
			`\| GEN_TEST_CNTL \| 0xD0 \|`
			`\| CONFIG_CNTL \| 0xDC \|`
			`\| CONFIG_CHIP_ID \| 0xE0 \|`
			`\| CONFIG_STAT0 \| 0xE4 \|`
			`\| DST_CNTL \| 0x130 \|`
			`\| SRC_OFF_PITCH \| 0x180 \|`
			`\| SRC_X \| 0x184 \|`
			`\| SRC_Y \| 0x188 \|`
			`\| SRC_Y_X \| 0x18C \|`
			`\| SRC_WIDTH1 \| 0x190 \|`
			`\| SRC_HEIGHT1 \| 0x194 \|`
			`\| SRC_HEIGHT1_WIDTH1 \| 0x198 \|`
			`\| SRC_CNTL \| 0x1B4 \|`
			`\| SCALE_3D_CNTL \| 0x1FC \|`
			`\| HOST_DATA0 \| 0x200 \|`
			`\| HOST_CNTL \| 0x240 \|`
			`\| DP_PIX_WIDTH \| 0x2D0 \|`
			`\| DP_SRC \| 0x2D8 \|`