1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
.set noreorder
.include "gtereg.h"
.section .text
.global InitGeom
.type InitGeom, @function
InitGeom:
addiu $sp, -4
sw $ra, 0($sp)
jal EnterCriticalSection
nop
mfc0 $v0, $12 # Get SR
lui $v1, 0x4000 # Set bit to enable cop2
or $v0, $v1
mtc0 $v0, $12 # Set new SR
jal ExitCriticalSection
nop
ctc2 $0 , $24 # Reset GTE offset
ctc2 $0 , $25
li $v0, 320 # Set default projection plane
ctc2 $v0, $26
li $v0, 0x155 # Set ZSF3 and ZSF4 defaults
ctc2 $v0, $29
li $v0, 0x100
ctc2 $v0, $30
li $v0, 0xef9e # DQA and DQB defaults
lui $v1, 0x0140
ctc2 $v0, C2_DQA
ctc2 $v1, C2_DQB
lw $ra, 0($sp)
addiu $sp, 4
jr $ra
nop
|
