Difference between revisions of "Template:IE BA desc"
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AND bitwise operand | Variable = Variable AND ImmediateValue | AND bitwise operand | Variable = Variable AND ImmediateValue | ||
| + | |||
| + | This command compares the individual bits of the value within a Variable and a specific ImmediateValue, and produces a single binary output. | ||
| + | |||
| + | With AND, the resulting bit outputs are set to 1 (TRUE) only if both values' bit inputs are 1. | ||
| + | |||
| + | The bits available within a single byte are: | ||
| + | * 0x80 | ||
| + | * 0x40 | ||
| + | * 0x20 | ||
| + | * 0x10 | ||
| + | * 0x08 | ||
| + | * 0x04 | ||
| + | * 0x02 | ||
| + | * 0x01 | ||
| + | |||
| + | So, for example, if you want to edit a unit's Battle Stats to remove the Dead status (which is bit 0x20), but leave their other statii unchanged, you would UnitAddress their Unit ID, LoadAddress their stats at 0x0058 & 0x01BB into temporary variables (let's say 0x0070 & 0x0071), and then run AND(x0070,x00DF) and AND(x0071,x00DF), before using SaveAddress to put the corrected values back. Because the Dead status is in bit 0x20, a value of DF means that every bit except 0x20 is set to 1. As a result, the other statii in that byte will remain unchanged, but by forcing 0x20 to be set to 1 in the ImmediateValue, it will zero out the Dead bit in the final result. | ||
Revision as of 15:50, 7 May 2021
AND bitwise operand | Variable = Variable AND ImmediateValue
This command compares the individual bits of the value within a Variable and a specific ImmediateValue, and produces a single binary output.
With AND, the resulting bit outputs are set to 1 (TRUE) only if both values' bit inputs are 1.
The bits available within a single byte are:
- 0x80
- 0x40
- 0x20
- 0x10
- 0x08
- 0x04
- 0x02
- 0x01
So, for example, if you want to edit a unit's Battle Stats to remove the Dead status (which is bit 0x20), but leave their other statii unchanged, you would UnitAddress their Unit ID, LoadAddress their stats at 0x0058 & 0x01BB into temporary variables (let's say 0x0070 & 0x0071), and then run AND(x0070,x00DF) and AND(x0071,x00DF), before using SaveAddress to put the corrected values back. Because the Dead status is in bit 0x20, a value of DF means that every bit except 0x20 is set to 1. As a result, the other statii in that byte will remain unchanged, but by forcing 0x20 to be set to 1 in the ImmediateValue, it will zero out the Dead bit in the final result.
