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8 - Data Transfer
Movement of data can be from register to register, or involve memory. Note that in commands with two entries, the syntax is in source/destination form; that is, the first item of the command is the source of the data, and the second refers to the destination.| ldt | mov t,rN; mov rN,t | mov usp,t; move t,usp | mov sp,t; move t,sp |
| Load the t register with immediate data. | Move the value in t into a register, or from a register into t. The 'rN' is the register identifier - for example, 'mov t,r0' would move the t register's contents to register zero in the current bank. | Move the USP register to the t register, and from t to the USP. | Move the current stack pointer register (USP/SSP) to the t register, and from t to the current stack pointer (lower 16 bits only). |
| mov t,st; mov st,t | mov8 (t),rp; mov8 (t),rN | mov8 rp,(t); mov8 rN,(t) | mov16 (t),rp; mov16 (t),rN |
| Move t to the status register or the status register to t. | Move a byte from the memory location pointed to by the t register to the specified register, either pointed to by RPTR or directly indexed. | Move from the lower 8 bits of the specified register to the location pointed to by t. | Move two consecutive bytes from the memory location pointed to by the t register to the specified register, either pointed to by RPTR or directly indexed. |
| mov16 rp,(t); mov16 rN,(t) | mov32 (t),rp; mov32 (t),rN | mov32 rN,(t); mov32 rN,(t) | movalt t,rp; movalt rp,t |
| Move from the lower 16 bits of the specified register to the location pointed to by t. | Move four consecutive bytes from the memory location pointed to by the t register to the specified register. | Move all 32 bits of the specified register to the location pointed to by t. | Move the indicated register data to and from a register in an alternate data bank via the alternate bank bits in the status register. |
| pop rN | push rN; push rp | swap t | upopalt rp |
| Move from stack to register N. | Move from specified register to stack. | Swap upper and lower words (16 bit values) of the t register. | Pull a value from the user stack into a register from an alternate bank. |
| upushalt rp | |||
| Save a register value from an alternate bank to the user stack. |
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