Difference between revisions of "Transfer Halfword Values"
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(Created page with " Transfer Halfword Values 0019ab08: 27bdfff8 addiu r29,r29,0xfff8 0019ab0c: 000617c2 srl r2,r6,0x1f 0019ab10: 00461021 addu r2,r2,r6 0019ab14: 00023043 sra r6,r2,0x01 Lim...") |
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| − | Transfer | + | Transfer r6/2 Halfwords from r5 to r4 |
| − | 0019ab08: 27bdfff8 addiu r29,r29, | + | ------------------------------------------- |
| − | 0019ab0c: 000617c2 srl r2,r6,0x1f | + | Parameters : r4 - Destination pointer |
| − | 0019ab10: 00461021 addu r2,r2,r6 | + | r5 - Origin pointer |
| − | 0019ab14: 00023043 sra r6,r2,0x01 | + | r6 - Nb of byte to transfer |
| − | 0019ab18: 18c00008 blez r6, | + | |
| − | 0019ab1c: 00001821 addu r3,r0,r0 | + | Returns nothing |
| − | 0019ab20: 94a20000 lhu r2,0x0000(r5) | + | ------------------------------------------- |
| − | 0019ab24: 24a50002 addiu r5,r5,0x0002 | + | 0019ab08: 27bdfff8 addiu r29,r29,-0x0008 |
| − | 0019ab28: 24630001 addiu r3,r3,0x0001 | + | 0019ab0c: 000617c2 srl r2,r6,0x1f |
| − | 0019ab2c: a4820000 sh r2,0x0000(r4) | + | 0019ab10: 00461021 addu r2,r2,r6 |{{f/std|Round r6 up if needed}} |
| − | 0019ab30: 0066102a slt r2,r3,r6 | + | 0019ab14: 00023043 sra r6,r2,0x01 |{{f/std|Limit / 2 - Nb of bytes becomes Nb of halfwords}} |
| − | 0019ab34: 1440fffa bne r2,r0, | + | 0019ab18: 18c00008 blez r6,0x0019ab3c {{f/Cond|If Limit is valid (> 0)}} |
| − | 0019ab38: 24840002 addiu r4,r4,0x0002 | + | 0019ab1c: 00001821 addu r3,r0,r0 |{{f/std|<nowiki>Counter = 0</nowiki>}} |
| − | 0019ab3c: 27bd0008 addiu r29,r29,0x0008 | + | {{f/bloop|Loop - Transfer halfwords from r5 to r3}} |
| + | 0019ab20: 94a20000 lhu r2,0x0000(r5) |{{f/load|Load Halfword}} | ||
| + | 0019ab24: 24a50002 addiu r5,r5,0x0002 |{{f/adr|Origin pointer + 2}} | ||
| + | 0019ab28: 24630001 addiu r3,r3,0x0001 |{{f/std|Counter + 1}} | ||
| + | 0019ab2c: a4820000 sh r2,0x0000(r4) |{{f/store|Store Data}} | ||
| + | 0019ab30: 0066102a slt r2,r3,r6 |{{f/std|check counter Vs limit}} | ||
| + | 0019ab34: 1440fffa bne r2,r0,0x0019ab20 {{f/eloop|Branch while Counter < Limit}} | ||
| + | 0019ab38: 24840002 addiu r4,r4,0x0002 |{{f/adr|Destination pointer + 2}} | ||
| + | 0019ab3c: 27bd0008 addiu r29,r29,0x0008 END | ||
0019ab40: 03e00008 jr r31 | 0019ab40: 03e00008 jr r31 | ||
0019ab44: 00000000 nop | 0019ab44: 00000000 nop | ||
| + | === Return locations === | ||
| + | '''Battle.bin''' | ||
| + | 0019418c: | ||
| + | 001941c8: | ||
| + | 001941d8: | ||
| + | 00195c1c: [[ AI Ability Data Setting]] | ||
| + | 00195edc: | ||
| + | 00195f04: | ||
| + | 001960c0: | ||
| + | 00196c70: | ||
| + | 00197064: | ||
| + | 00197090: | ||
| + | 00197180: | ||
| + | 00197714: | ||
| + | 001978c0: | ||
| + | 00198448: | ||
| + | 00198a90: | ||
| + | 0019b468: | ||
| + | 0019b8e8: | ||
| + | 0019bd5c: | ||
| + | 0019c45c: | ||
| + | 0019cb84: | ||
| + | 0019d360: | ||
| + | 0019e320: | ||
| + | 0019e4ec: | ||
Revision as of 19:36, 15 April 2023
Transfer r6/2 Halfwords from r5 to r4
-------------------------------------------
Parameters : r4 - Destination pointer
r5 - Origin pointer
r6 - Nb of byte to transfer
Returns nothing
-------------------------------------------
0019ab08: 27bdfff8 addiu r29,r29,-0x0008
0019ab0c: 000617c2 srl r2,r6,0x1f
0019ab10: 00461021 addu r2,r2,r6 |Round r6 up if needed
0019ab14: 00023043 sra r6,r2,0x01 |Limit / 2 - Nb of bytes becomes Nb of halfwords
0019ab18: 18c00008 blez r6,0x0019ab3c #If Limit is valid (> 0)
0019ab1c: 00001821 addu r3,r0,r0 |Counter = 0
@Loop - Transfer halfwords from r5 to r3
0019ab20: 94a20000 lhu r2,0x0000(r5) |Load Halfword
0019ab24: 24a50002 addiu r5,r5,0x0002 |Origin pointer + 2
0019ab28: 24630001 addiu r3,r3,0x0001 |Counter + 1
0019ab2c: a4820000 sh r2,0x0000(r4) |Store Data
0019ab30: 0066102a slt r2,r3,r6 |check counter Vs limit
0019ab34: 1440fffa bne r2,r0,0x0019ab20 Λ Branch while Counter < Limit
0019ab38: 24840002 addiu r4,r4,0x0002 |Destination pointer + 2
0019ab3c: 27bd0008 addiu r29,r29,0x0008 END
0019ab40: 03e00008 jr r31
0019ab44: 00000000 nop
Return locations
Battle.bin 0019418c: 001941c8: 001941d8: 00195c1c: AI Ability Data Setting 00195edc: 00195f04: 001960c0: 00196c70: 00197064: 00197090: 00197180: 00197714: 001978c0: 00198448: 00198a90: 0019b468: 0019b8e8: 0019bd5c: 0019c45c: 0019cb84: 0019d360: 0019e320: 0019e4ec:
