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CASM OPERATING PROCEDURE Table 4-2. Pseudo Operations PSEUDO-OP CODE ACTION rmb n or ds n Defines storage, reserving n bytes, where n = number or label. No forward references of n are allowed. fcb m or db m Defines byte storage, where m = label, number, or string. Strings generate ASCII code for multiple bytes; number and label parameters receive single bytes. Separate multiple parameters with commas. fdb n or| dw n Defines word storage, where n = label, number, or string. Two bytes are generated for each number or label. Separate multiple parameters with commas. lab: equ n org n RAPID/D Assigns the value of the number or label n to the label lab. No forward references of n are allowed. Sets the origin to the value of the number or label n. No forward references of n are allowed. 4-9 MOTOROLA