Let the music play!
I dont know if you're aware, but the Emerald RNG for generating IVs has been completely discovered. The IVs and natures of all Advance and 4th gen games are always generated in a fixed pattern, but in Emerald, every time you reset the game, this pattern starts again from 0, and the IVs change every frame at a rate of 60 frames a second. With this knowledge, it is possible to pick a starter or battle a wild Pokemon on a specific frame from resetting and always get the same IVs and nature.
There are 3 methods the game uses to generate IVs. Method 1 is reserved for the legendary Pokemon and the starters. Method 2 covers most of the wild Pokemon. It is unclear at the minute when the third method is used.
For example, with Method 1, 95 frames from resetting it always generates an Adamant Pokemon with 29/31/21/23/19/9 IVs. Since this is just over a second and a half from resetting, it is impossible to actually get this Pokemon, the startup sequence after resetting is too long. For something more feasible for an actual speedrun, at frame 7977, or 2 minutes 12.95 seconds after resetting, you can get a Hasty Pokemon with 4/29/13/30/2/31, a perfect choice for a Torchic starter.
Remember the frame count resets when you soft-reset the game (using Start+Select+A+B), so you can wait the time in the options menu, use a stopwatch to get the timing right, then start the game within a few seconds of the time you actually need to get the correct frame for the IVs you want. Activating a legendary battle or starter Pokemon, or using the move Sweet Scent for capturing wild Pokemon, all have an offset, which you need to deduct from the frame count to generate the time you should be aiming for.
BTW, I list IVs in the following order: HP / Att / Def / SpAtt / SpDef / Speed
If you want to do some research, the program RNG Reporter is designed specifically for this in mind. It can be downloaded from here: http://www.eggmove.com/rngreporter/.
If all this is unclear to you, further information can be found here: http://www.smogon.com/forums/showthread.php?t=50696
EDIT:
I did some research using RNG Reporter to find a good IV/nature spread for a Torchic starter. Assuming max Speed and a requirement of HP Ice, the best option within the first 15 minutes of soft-resetting I can find is likely this one:
frame 31700 - 8:48.33
Lonely 2/19/18/31/31/31
HP Ice 70
Unless you need a higher Attack IV, the Lonely nature (+Att, -Def) should cover the average IV stat. I am as yet trying to find one with higher offences and a slightly lower HP Ice power, but this one immediately stands out as a good candidate for a HP Ice Torchic starter suitable for speedrunning.
There are 3 methods the game uses to generate IVs. Method 1 is reserved for the legendary Pokemon and the starters. Method 2 covers most of the wild Pokemon. It is unclear at the minute when the third method is used.
For example, with Method 1, 95 frames from resetting it always generates an Adamant Pokemon with 29/31/21/23/19/9 IVs. Since this is just over a second and a half from resetting, it is impossible to actually get this Pokemon, the startup sequence after resetting is too long. For something more feasible for an actual speedrun, at frame 7977, or 2 minutes 12.95 seconds after resetting, you can get a Hasty Pokemon with 4/29/13/30/2/31, a perfect choice for a Torchic starter.
Remember the frame count resets when you soft-reset the game (using Start+Select+A+B), so you can wait the time in the options menu, use a stopwatch to get the timing right, then start the game within a few seconds of the time you actually need to get the correct frame for the IVs you want. Activating a legendary battle or starter Pokemon, or using the move Sweet Scent for capturing wild Pokemon, all have an offset, which you need to deduct from the frame count to generate the time you should be aiming for.
BTW, I list IVs in the following order: HP / Att / Def / SpAtt / SpDef / Speed
If you want to do some research, the program RNG Reporter is designed specifically for this in mind. It can be downloaded from here: http://www.eggmove.com/rngreporter/.
If all this is unclear to you, further information can be found here: http://www.smogon.com/forums/showthread.php?t=50696
EDIT:
I did some research using RNG Reporter to find a good IV/nature spread for a Torchic starter. Assuming max Speed and a requirement of HP Ice, the best option within the first 15 minutes of soft-resetting I can find is likely this one:
frame 31700 - 8:48.33
Lonely 2/19/18/31/31/31
HP Ice 70
Unless you need a higher Attack IV, the Lonely nature (+Att, -Def) should cover the average IV stat. I am as yet trying to find one with higher offences and a slightly lower HP Ice power, but this one immediately stands out as a good candidate for a HP Ice Torchic starter suitable for speedrunning.