Difference between revisions of "000257c8 - 00025820"
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(Created page with "<font face='Courier New'> 000257c8: 3c028003 lui r2,0x8003 000257cc: 24422894 addiu r2,r2,0x2894 000257d0: 90420000 lbu r2,0x0000(r2) 000257d4: 00000000 nop 000257d8: 2...") |
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000257c8: 3c028003 lui r2,0x8003 | 000257c8: 3c028003 lui r2,0x8003 | ||
| − | 000257cc: 24422894 addiu r2,r2,0x2894 | + | 000257cc: 24422894 addiu r2,r2,0x2894 0x80032894 |
| − | 000257d0: 90420000 lbu r2,0x0000(r2) | + | 000257d0: 90420000 lbu r2,0x0000(r2) load byte there |
000257d4: 00000000 nop | 000257d4: 00000000 nop | ||
000257d8: 2442ffff addiu r2,r2,0xffff | 000257d8: 2442ffff addiu r2,r2,0xffff | ||
| − | 000257dc: 2c420002 sltiu r2,r2,0x0002 | + | 000257dc: 2c420002 sltiu r2,r2,0x0002 set if less than 2 |
| − | 000257e0: 10400008 beq r2,r0,0x00025804 | + | 000257e0: 10400008 beq r2,r0,0x00025804 branch if ? > 2 (value 2 determines 0x0200 instead of 0x0800, and value 1 0x0400 instead of 0x1000) |
000257e4: 00000000 nop | 000257e4: 00000000 nop | ||
| − | 000257e8: 10a00002 beq r5,r0,0x000257f4 | + | 000257e8: 10a00002 beq r5,r0,0x000257f4 branch if value 2 = 0 (don't add 0x0800) |
| − | 000257ec: 3c03e100 lui r3,0xe100 | + | 000257ec: 3c03e100 lui r3,0xe100 r3 = 0xe1000000 |
| − | 000257f0: 34630800 ori r3,r3,0x0800 | + | 000257f0: 34630800 ori r3,r3,0x0800 r3 = 0xe1000800 |
| − | 000257f4: 10800009 beq r4,r0,0x0002581c | + | 000257f4: 10800009 beq r4,r0,0x0002581c branch if value 1 = 0 (don't add 0x1000) |
| − | 000257f8: 30c227ff andi r2,r6,0x27ff | + | 000257f8: 30c227ff andi r2,r6,0x27ff r2 = value 3 0x27ff bitmasked |
000257fc: 08009607 j 0x0002581c | 000257fc: 08009607 j 0x0002581c | ||
| − | 00025800: 34421000 ori r2,r2,0x1000 | + | 00025800: 34421000 ori r2,r2,0x1000 r2 = value 3 0x27ff bitmasked OR 0x1000 |
| − | 00025804: 10a00002 beq r5,r0,0x00025810 | + | 00025804: 10a00002 beq r5,r0,0x00025810 if ? > 2, branch if value 2 = 0 |
| − | 00025808: 3c03e100 lui r3,0xe100 | + | 00025808: 3c03e100 lui r3,0xe100 r3 = 0xe1000000 |
| − | 0002580c: 34630200 ori r3,r3,0x0200 | + | 0002580c: 34630200 ori r3,r3,0x0200 r3 = 0xe1000200 |
| − | 00025810: 10800002 beq r4,r0,0x0002581c | + | 00025810: 10800002 beq r4,r0,0x0002581c branch if value 1 = 0 (don't add 0x0400) |
| − | 00025814: 30c209ff andi r2,r6,0x09ff | + | 00025814: 30c209ff andi r2,r6,0x09ff r2 = value 3 0x09ff bitmasked |
| − | 00025818: 34420400 ori r2,r2,0x0400 | + | 00025818: 34420400 ori r2,r2,0x0400 r2 = value 3 ox09ff bitmasked OR 0x0400 |
0002581c: 03e00008 jr r31 | 0002581c: 03e00008 jr r31 | ||
| − | 00025820: 00621025 or r2,r3,r2 | + | 00025820: 00621025 or r2,r3,r2 returns r2 = 0xe1000000 + value 3 bitmasked, and various other flags determined by check |
</font> | </font> | ||
Revision as of 10:57, 22 February 2022
000257c8: 3c028003 lui r2,0x8003 000257cc: 24422894 addiu r2,r2,0x2894 0x80032894 000257d0: 90420000 lbu r2,0x0000(r2) load byte there 000257d4: 00000000 nop 000257d8: 2442ffff addiu r2,r2,0xffff 000257dc: 2c420002 sltiu r2,r2,0x0002 set if less than 2 000257e0: 10400008 beq r2,r0,0x00025804 branch if ? > 2 (value 2 determines 0x0200 instead of 0x0800, and value 1 0x0400 instead of 0x1000) 000257e4: 00000000 nop 000257e8: 10a00002 beq r5,r0,0x000257f4 branch if value 2 = 0 (don't add 0x0800) 000257ec: 3c03e100 lui r3,0xe100 r3 = 0xe1000000 000257f0: 34630800 ori r3,r3,0x0800 r3 = 0xe1000800 000257f4: 10800009 beq r4,r0,0x0002581c branch if value 1 = 0 (don't add 0x1000) 000257f8: 30c227ff andi r2,r6,0x27ff r2 = value 3 0x27ff bitmasked 000257fc: 08009607 j 0x0002581c 00025800: 34421000 ori r2,r2,0x1000 r2 = value 3 0x27ff bitmasked OR 0x1000 00025804: 10a00002 beq r5,r0,0x00025810 if ? > 2, branch if value 2 = 0 00025808: 3c03e100 lui r3,0xe100 r3 = 0xe1000000 0002580c: 34630200 ori r3,r3,0x0200 r3 = 0xe1000200 00025810: 10800002 beq r4,r0,0x0002581c branch if value 1 = 0 (don't add 0x0400) 00025814: 30c209ff andi r2,r6,0x09ff r2 = value 3 0x09ff bitmasked 00025818: 34420400 ori r2,r2,0x0400 r2 = value 3 ox09ff bitmasked OR 0x0400 0002581c: 03e00008 jr r31 00025820: 00621025 or r2,r3,r2 returns r2 = 0xe1000000 + value 3 bitmasked, and various other flags determined by check
