Difference between revisions of "0005e0cc"
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| − | + | General random chance function. Randomly returns False r5/r4 of the time. | |
Args: | Args: | ||
| − | * r4 | + | * r4 = number of sides on the die |
| − | * r5 | + | * r5 = target to beat |
0005e0cc: 27bdffe0 addiu r29,r29,0xffe0 | 0005e0cc: 27bdffe0 addiu r29,r29,0xffe0 | ||
0005e0d0: afb00010 sw r16,0x0010(r29) | 0005e0d0: afb00010 sw r16,0x0010(r29) | ||
| − | 0005e0d4: 00808021 addu r16,r4,r0 r16 = | + | 0005e0d4: 00808021 addu r16,r4,r0 r16 = Sides |
0005e0d8: afb10014 sw r17,0x0014(r29) | 0005e0d8: afb10014 sw r17,0x0014(r29) | ||
0005e0dc: afbf0018 sw r31,0x0018(r29) | 0005e0dc: afbf0018 sw r31,0x0018(r29) | ||
| − | 0005e0e0: 0c0088c3 jal 0x[[0002230c]] r2 = | + | 0005e0e0: 0c0088c3 jal 0x[[0002230c]] r2 = 0..7fffh |
| − | 0005e0e4: 00a08821 addu r17,r5,r0 r17 = | + | 0005e0e4: 00a08821 addu r17,r5,r0 r17 = Target |
| − | 0005e0e8: 00500018 mult r2,r16 | + | 0005e0e8: 00500018 mult r2,r16 r2 = Sides * 0..7fffh |
| − | 0005e0ec: 00001012 mflo r2 | + | 0005e0ec: 00001012 mflo r2 ^ |
| − | 0005e0f0: 04410002 bgez r2,0x0005e0fc if | + | 0005e0f0: 04410002 bgez r2,0x0005e0fc if r2 < 0: |
0005e0f4: 00000000 nop | 0005e0f4: 00000000 nop | ||
| − | 0005e0f8: 24427fff addiu r2,r2,0x7fff | + | 0005e0f8: 24427fff addiu r2,r2,0x7fff r2 += 7fffh //make positive |
| − | 0005e0fc: 000213c3 sra r2,r2,0x0f | + | 0005e0fc: 000213c3 sra r2,r2,0x0f r2 = r2 / 8000h // = 0..(Sides - 1) |
| − | 0005e100: 0051102a slt r2,r2,r17 | + | 0005e100: 0051102a slt r2,r2,r17 rv = 0..(Sides - 1) < Target |
| − | 0005e104: 38420001 xori r2,r2,0x0001 | + | 0005e104: 38420001 xori r2,r2,0x0001 rv = 0..(Sides - 1) >= Target |
| − | |||
0005e108: 8fbf0018 lw r31,0x0018(r29) | 0005e108: 8fbf0018 lw r31,0x0018(r29) | ||
0005e10c: 8fb10014 lw r17,0x0014(r29) | 0005e10c: 8fb10014 lw r17,0x0014(r29) | ||
0005e110: 8fb00010 lw r16,0x0010(r29) | 0005e110: 8fb00010 lw r16,0x0010(r29) | ||
0005e114: 27bd0020 addiu r29,r29,0x0020 | 0005e114: 27bd0020 addiu r29,r29,0x0020 | ||
| − | 0005e118: 03e00008 jr r31 | + | 0005e118: 03e00008 jr r31 return 0..(Sides - 1) >= Target |
0005e11c: 00000000 nop | 0005e11c: 00000000 nop | ||
Revision as of 00:33, 8 February 2016
General random chance function. Randomly returns False r5/r4 of the time.
Args:
- r4 = number of sides on the die
- r5 = target to beat
0005e0cc: 27bdffe0 addiu r29,r29,0xffe0 0005e0d0: afb00010 sw r16,0x0010(r29) 0005e0d4: 00808021 addu r16,r4,r0 r16 = Sides 0005e0d8: afb10014 sw r17,0x0014(r29) 0005e0dc: afbf0018 sw r31,0x0018(r29) 0005e0e0: 0c0088c3 jal 0x0002230c r2 = 0..7fffh 0005e0e4: 00a08821 addu r17,r5,r0 r17 = Target 0005e0e8: 00500018 mult r2,r16 r2 = Sides * 0..7fffh 0005e0ec: 00001012 mflo r2 ^ 0005e0f0: 04410002 bgez r2,0x0005e0fc if r2 < 0: 0005e0f4: 00000000 nop 0005e0f8: 24427fff addiu r2,r2,0x7fff r2 += 7fffh //make positive 0005e0fc: 000213c3 sra r2,r2,0x0f r2 = r2 / 8000h // = 0..(Sides - 1) 0005e100: 0051102a slt r2,r2,r17 rv = 0..(Sides - 1) < Target 0005e104: 38420001 xori r2,r2,0x0001 rv = 0..(Sides - 1) >= Target 0005e108: 8fbf0018 lw r31,0x0018(r29) 0005e10c: 8fb10014 lw r17,0x0014(r29) 0005e110: 8fb00010 lw r16,0x0010(r29) 0005e114: 27bd0020 addiu r29,r29,0x0020 0005e118: 03e00008 jr r31 return 0..(Sides - 1) >= Target 0005e11c: 00000000 nop
