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@ -231,14 +231,28 @@ Branch to address of label if **O-flag** is 0.
Define a compile-time constant. This will replace all (valid) constant Define a compile-time constant. This will replace all (valid) constant
declarations with the given name with the value supplied here. declarations with the given name with the value supplied here.
**NOTE**: Constant names are case-insensitive; i.e. *FOO* and *foo* are
functionally indistinguishable to the compiler.
### \#data \[address] [const] ### \#data \[address] [const]
Define an initial value in the program memory at the given address. Define an initial value in the program memory at the given address.
### $[label]
Define a compile-time label at the given position in the microprogram. Labels
can be referenced using an '@' symbol.
For example: *$BAR* would declare a label *BAR* which can be referenced with
*@BAR*.
**NOTE**: Label names are case-insensitive; i.e. *@FOO* and *@foo* are
functionally indistinguishable to the compiler.
## Flags ## Flags
Flags - *aside from L* - are set based on ALU operations, so they depend on Flags - *aside from L* - are set based on ALU operations, so they depend on
**AR** and the **BUS**. Unless otherwise implied or stated, **AR** refers to **AR** and the **BUS**. Henceforth, unless otherwise implied or stated, **AR**
the state/value of **AR** *after* an ALU operation. will refer to the state/value of **AR** *after* an ALU operation.
### Z ### Z
Set if **AR** == **BUS** Set if **AR** == **BUS**