Difference between revisions of "Get Variable's Word Pointer from Variable's ID"
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(Created page with "<font face='Courier New'> 0014a2ec: 27bdffe8 addiu r29,r29,0xffe8 0014a2f0: 28820080 slti r2,r4,0x0080 0014a2f4: afbf0014 sw r31,0x0014(r29) 0014a2f8: 10400006 beq r2,r0...") |
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| − | < | + | #Input r4 (0x00 from Run script variable) |
| − | + | #Return r2 | |
| − | 0014a2ec: 27bdffe8 addiu r29,r29,0xffe8 | + | as 0x0005771c + r4 * 4 if r4 < 0x80 if r4 < 0x400 (detemined from r4 - cut off at 0x80 - 0x360) (steal gil leads here) |
| − | 0014a2f0: 28820080 slti r2,r4,0x0080 | + | as 0x0005771c + 0x200 + ((r4-0x80) /32)*4 if r4 is between 0x80 and 0x359 |
| − | 0014a2f4: afbf0014 sw r31,0x0014(r29) | + | as 0x0005771c + 0x25c + ((r4 - 0x360)/8)*4 if r4 is between 0x360 and 0x39F |
| − | 0014a2f8: 10400006 beq r2,r0,0x0014a314 | + | as ? If r4>= 0x400 (via [[0014c958_-_0014c990]] - not investigated) |
| − | 0014a2fc: afb00010 sw r16,0x0010(r29) | + | ------------------------------------------------------------------------------------ |
| − | 0014a300: 3c038016 lui r3,0x8016 | + | 0014a2ec: 27bdffe8 addiu r29,r29,0xffe8 |
| − | 0014a304: 8c635f9c lw r3,0x5f9c(r3) | + | 0014a2f0: 28820080 slti r2,r4,0x0080 |r2 = 1 if Input < 0x80 |
| − | 0014a308: 00041080 sll r2,r4,0x02 | + | 0014a2f4: afbf0014 sw r31,0x0014(r29) | |
| − | 0014a30c: 080528e1 j 0x0014a384 | + | 0014a2f8: 10400006 beq r2,r0,0x0014a314 #'''If r2 = 1''' |
| − | 0014a310: 00438021 addu r16,r2,r3 | + | 0014a2fc: afb00010 sw r16,0x0010(r29) |
| − | 0014a314: 28820360 slti r2,r4,0x0360 | + | 0014a300: 3c038016 lui r3,0x8016 |
| − | 0014a318: 1040000b beq r2,r0,0x0014a348 | + | 0014a304: 8c635f9c lw r3,0x5f9c(r3) |<span style="color:limegreen">r3 = 0x80165f9c (host 0005771c - start of main (map?) data?)</span> |
| − | 0014a31c: 2482ff80 addiu r2,r4,0xff80 | + | 0014a308: 00041080 sll r2,r4,0x02 |r2 = r4 * 4 0x00 0x100 |
| − | 0014a320: 04410003 bgez r2,0x0014a330 | + | 0014a30c: 080528e1 j 0x0014a384 >>'''jump to almost end''' |
| − | 0014a324: 00021143 sra r2,r2,0x05 | + | 0014a310: 00438021 addu r16,r2,r3 |r16 = Main (map ?) data start + offset (r4*4) |
| − | 0014a328: 2482ff9f addiu r2,r4,0xff9f | + | 0014a314: 28820360 slti r2,r4,0x0360 |r2 = 1 if input < 0x360 1 |
| − | 0014a32c: 00021143 sra r2,r2,0x05 | + | 0014a318: 1040000b beq r2,r0,0x0014a348 #'''If r2 = 1 (r4 between 0x80 and 0x35F)''' branch if r2 = 0 |
| − | 0014a330: 00021080 sll r2,r2,0x02 | + | 0014a31c: 2482ff80 addiu r2,r4,0xff80 |r2 = input + 0xff80 (input - 0x80) 0x00 0xA0 |
| − | 0014a334: 3c038016 lui r3,0x8016 | + | 0014a320: 04410003 bgez r2,0x0014a330 #'''If r2 < 0''' never true ? (tested for r4 = 0x81 and 0x35F) |
| − | 0014a338: 8c635f9c lw r3,0x5f9c(r3) | + | 0014a324: 00021143 sra r2,r2,0x05 |r2 = r2 /32 any value under 0x20 is 0x00 (for r4 = 0x80 to 0xA0) |
| − | 0014a33c: 24420200 addiu r2,r2,0x0200 | + | 0014a328: 2482ff9f addiu r2,r4,0xff9f |r2 = input + 0xff9f (input -0x61) |
| − | 0014a340: 080528e1 j 0x0014a384 | + | 0014a32c: 00021143 sra r2,r2,0x05 |r2 = r2/32 |
| − | 0014a344: 00438021 addu r16,r2,r3 | + | 0014a330: 00021080 sll r2,r2,0x02 |r2 = r2*4 0x00 |
| − | 0014a348: 28820400 slti r2,r4,0x0400 | + | 0014a334: 3c038016 lui r3,0x8016 | |
| − | 0014a34c: 1040000b beq r2,r0,0x0014a37c | + | 0014a338: 8c635f9c lw r3,0x5f9c(r3) |<span style="color:limegreen">r3 = 0x80165f9c (host 0005771c - start of main (map?) data?)</span> |
| − | 0014a350: 2482fca0 addiu r2,r4,0xfca0 | + | 0014a33c: 24420200 addiu r2,r2,0x0200 |r2 = r2 + 0x200 |
| − | 0014a354: 04410003 bgez r2,0x0014a364 | + | 0014a340: 080528e1 j 0x0014a384 >>'''jump to almost end''' |
| − | 0014a358: 000210c3 sra r2,r2,0x03 | + | 0014a344: 00438021 addu r16,r2,r3 |r16 = Main (map ?) data start + offset |
| − | 0014a35c: 2482fca7 addiu r2,r4,0xfca7 | + | 0014a348: 28820400 slti r2,r4,0x0400 |r2 = 1 if input < 0x400 |
| − | 0014a360: 000210c3 sra r2,r2,0x03 | + | 0014a34c: 1040000b beq r2,r0,0x0014a37c #'''If r2 = 1''' |
| − | 0014a364: 00021080 sll r2,r2,0x02 | + | 0014a350: 2482fca0 addiu r2,r4,0xfca0 |r2 = input + fca0 (input - 0x360) |
| − | 0014a368: 3c038016 lui r3,0x8016 | + | 0014a354: 04410003 bgez r2,0x0014a364 #'''If r2<0 (never true ?)''' |
| − | 0014a36c: 8c635f9c lw r3,0x5f9c(r3) | + | 0014a358: 000210c3 sra r2,r2,0x03 |r2 = r2/8 |
| − | 0014a370: 2442025c addiu r2,r2,0x025c | + | 0014a35c: 2482fca7 addiu r2,r4,0xfca7 |r2 = input - 0x359 |
| − | 0014a374: 080528e1 j 0x0014a384 | + | 0014a360: 000210c3 sra r2,r2,0x03 |r2 = r2/8 |
| − | 0014a378: 00438021 addu r16,r2,r3 | + | 0014a364: 00021080 sll r2,r2,0x02 |r2 = r2 * 4 |
| − | 0014a37c: 0c053256 jal 0x0014c958 | + | 0014a368: 3c038016 lui r3,0x8016 | |
| − | 0014a380: 00000000 nop | + | 0014a36c: 8c635f9c lw r3,0x5f9c(r3) |<span style="color:limegreen">r3 = 0x80165f9c (host 0005771c - start of main (map?) data?)</span> |
| − | 0014a384: 02001021 addu r2,r16,r0 | + | 0014a370: 2442025c addiu r2,r2,0x025c |r2 = r2 + 0x25c |
| − | 0014a388: 8fbf0014 lw r31,0x0014(r29) | + | 0014a374: 080528e1 j 0x0014a384 >>'''jump to almost end''' |
| − | 0014a38c: 8fb00010 lw r16,0x0010(r29) | + | 0014a378: 00438021 addu r16,r2,r3 |r16 = Main (map ?) data + offset ? |
| − | 0014a390: 27bd0018 addiu r29,r29,0x0018 | + | 0014a37c: 0c053256 jal 0x0014c958 |-->[[0014c958_-_0014c990|<span style="color:blue">jal 0x0014c958 (input > 0x400)</span>]] |
| − | 0014a394: 03e00008 jr r31 | + | 0014a380: 00000000 nop | |
| + | 0014a384: 02001021 addu r2,r16,r0 |r2 = r16 | ||
| + | 0014a388: 8fbf0014 lw r31,0x0014(r29) | ||
| + | 0014a38c: 8fb00010 lw r16,0x0010(r29) | ||
| + | 0014a390: 27bd0018 addiu r29,r29,0x0018 | ||
| + | 0014a394: 03e00008 jr r31 | ||
0014a398: 00000000 nop | 0014a398: 00000000 nop | ||
| − | + | ||
| + | ==Returns location== | ||
Revision as of 20:01, 31 August 2021
#Input r4 (0x00 from Run script variable)
#Return r2
as 0x0005771c + r4 * 4 if r4 < 0x80 if r4 < 0x400 (detemined from r4 - cut off at 0x80 - 0x360) (steal gil leads here)
as 0x0005771c + 0x200 + ((r4-0x80) /32)*4 if r4 is between 0x80 and 0x359
as 0x0005771c + 0x25c + ((r4 - 0x360)/8)*4 if r4 is between 0x360 and 0x39F
as ? If r4>= 0x400 (via 0014c958_-_0014c990 - not investigated)
------------------------------------------------------------------------------------
0014a2ec: 27bdffe8 addiu r29,r29,0xffe8
0014a2f0: 28820080 slti r2,r4,0x0080 |r2 = 1 if Input < 0x80
0014a2f4: afbf0014 sw r31,0x0014(r29) |
0014a2f8: 10400006 beq r2,r0,0x0014a314 #If r2 = 1
0014a2fc: afb00010 sw r16,0x0010(r29)
0014a300: 3c038016 lui r3,0x8016
0014a304: 8c635f9c lw r3,0x5f9c(r3) |r3 = 0x80165f9c (host 0005771c - start of main (map?) data?)
0014a308: 00041080 sll r2,r4,0x02 |r2 = r4 * 4 0x00 0x100
0014a30c: 080528e1 j 0x0014a384 >>jump to almost end
0014a310: 00438021 addu r16,r2,r3 |r16 = Main (map ?) data start + offset (r4*4)
0014a314: 28820360 slti r2,r4,0x0360 |r2 = 1 if input < 0x360 1
0014a318: 1040000b beq r2,r0,0x0014a348 #If r2 = 1 (r4 between 0x80 and 0x35F) branch if r2 = 0
0014a31c: 2482ff80 addiu r2,r4,0xff80 |r2 = input + 0xff80 (input - 0x80) 0x00 0xA0
0014a320: 04410003 bgez r2,0x0014a330 #If r2 < 0 never true ? (tested for r4 = 0x81 and 0x35F)
0014a324: 00021143 sra r2,r2,0x05 |r2 = r2 /32 any value under 0x20 is 0x00 (for r4 = 0x80 to 0xA0)
0014a328: 2482ff9f addiu r2,r4,0xff9f |r2 = input + 0xff9f (input -0x61)
0014a32c: 00021143 sra r2,r2,0x05 |r2 = r2/32
0014a330: 00021080 sll r2,r2,0x02 |r2 = r2*4 0x00
0014a334: 3c038016 lui r3,0x8016 |
0014a338: 8c635f9c lw r3,0x5f9c(r3) |r3 = 0x80165f9c (host 0005771c - start of main (map?) data?)
0014a33c: 24420200 addiu r2,r2,0x0200 |r2 = r2 + 0x200
0014a340: 080528e1 j 0x0014a384 >>jump to almost end
0014a344: 00438021 addu r16,r2,r3 |r16 = Main (map ?) data start + offset
0014a348: 28820400 slti r2,r4,0x0400 |r2 = 1 if input < 0x400
0014a34c: 1040000b beq r2,r0,0x0014a37c #If r2 = 1
0014a350: 2482fca0 addiu r2,r4,0xfca0 |r2 = input + fca0 (input - 0x360)
0014a354: 04410003 bgez r2,0x0014a364 #If r2<0 (never true ?)
0014a358: 000210c3 sra r2,r2,0x03 |r2 = r2/8
0014a35c: 2482fca7 addiu r2,r4,0xfca7 |r2 = input - 0x359
0014a360: 000210c3 sra r2,r2,0x03 |r2 = r2/8
0014a364: 00021080 sll r2,r2,0x02 |r2 = r2 * 4
0014a368: 3c038016 lui r3,0x8016 |
0014a36c: 8c635f9c lw r3,0x5f9c(r3) |r3 = 0x80165f9c (host 0005771c - start of main (map?) data?)
0014a370: 2442025c addiu r2,r2,0x025c |r2 = r2 + 0x25c
0014a374: 080528e1 j 0x0014a384 >>jump to almost end
0014a378: 00438021 addu r16,r2,r3 |r16 = Main (map ?) data + offset ?
0014a37c: 0c053256 jal 0x0014c958 |-->jal 0x0014c958 (input > 0x400)
0014a380: 00000000 nop |
0014a384: 02001021 addu r2,r16,r0 |r2 = r16
0014a388: 8fbf0014 lw r31,0x0014(r29)
0014a38c: 8fb00010 lw r16,0x0010(r29)
0014a390: 27bd0018 addiu r29,r29,0x0018
0014a394: 03e00008 jr r31
0014a398: 00000000 nop
