Checkpoint | Description |
|
|
14h | Program chipset default values into chipset. Chipset default values are MODBINable by |
| OEM customers. |
|
|
15h | Reserved |
|
|
16h | Initial Early_Init_Onboard_Generator switch. |
|
|
17h | Reserved |
|
|
18h | Detect CPU information including brand, SMI type (Cyrix or Intel) and CPU level (586 or |
| 686) |
|
|
19h | Reserved |
|
|
1Ah | Reserved |
|
|
1Bh | Initial interrupts vector table. If no special specified, all H/W interrupts are directed to |
| SPURIOUS_INT_HDLR & S/W interrupts to PURIOUS_soft_HDLR. |
|
|
1Ch | Reserved |
|
|
1Dh | Initial Early_PM_INIT switch. |
|
|
1Eh | Reserved |
|
|
1Fh | Load keyboard matrix (notebook platform) |
|
|
20h | Reserved |
|
|
21h | HPM initialization (notebook platform) |
|
|
22h | Reserved |
|
|
3Ch | Test 8254. |
|
|
3Dh | Reserved |
|
|
3Eh | Test 8259 interrupt mask bits for channel 1 |
|
|
3Fh | Reserved |
|
|
40h | Test 8259 interrupt mask bits for channel 2 |
|
|
41h | Reserved |
|
|
42h | Reserved |
|
|
43h | Test 8259 functionality |
|
|
44h | Reserved |
|
|
45h | Reserved |
|
|
46h | Reserved |
|
|
47h | Initialize EISA slot |
|
|
48h | Reserved |
|
|
49h | 1. Calculate total memory by testing the last double word of each 64K. |
| 2. Program writes allocation for AMD K5 CPU. |
|
|
4Ah | Reserved |
|
|
4Bh | Reserved |
|
|
Chapter 4 | 36 |
