Kick Assembler uses the traditional notation for addressing modes / argument types:
Table 3.2. Argument Types
| Mode | Example |
|---|---|
| No argument | nop |
| Immediate | lda #$30 |
| Zeropage | lda $30 |
| Zeropage,x | lda $30,x |
| Zeropage,y | ldx $30,y |
| Indirect zeropage,x | lda ($30,x) |
| Indirect zeropage,y | lda ($30),y |
| Abolute | lda $1000 |
| Absolute,x | lda $1000,x |
| Absolute,y | lda $1000,y |
| Indirect | jmp ($1000) |
| Relative to program counter | bne loop |
| Indirect zeropage (65c02 only) | adc ($12) |
| Zeropage, Relative (65c02 only) | bbr1 $12,label |
| indirect,x (65c02 only) | jmp ($1234,x) |
An argument is converted to its zeropage mode if possible. This means that lda $0030 will generate an lda command in its zeropage mode[1]
You can force the assembler to use the absolute form of the mnemonic by appending .a or .abs. The same way you can tell the assembler to use zeropage mode when it would otherwise use an absolute mode.
lda.abs $0040,x // Uses absolute mode lda.a $0030,x // Same as abs (abbreviation) stx.zp zpLabel,y // Uses zeropage mode stx.z zpLabel,y // Same as zp (abbreviation) .label zpLabel = $10 jmp.z $1000 // Modifies nothing, jmp don't have any zp mode
With the following extensions you can force specific modes. The are deprecated and only kept for backward compatibility:
Table 3.3. Deprecated Mnemonic Extensions
| Ext | Mode | Example |
|---|---|---|
| im, imm | Immediate | |
| z, zp | Zeropage | ldx.z $1234 |
| zx, zpx | Zeropage,x | lda.zpx table |
| zy, zpy | Zeropage,y | |
| izx, izpx | Indirect zeropage,x | |
| izy, izpy | Indirect zeropage,y | |
| ax, absx | Absolute,x | lda.absx $1234 |
| ay, absy | Absolute,y | |
| I, ind | Indirect | jmp.i $1000 |
| r, rel | Relative to program counter |
[1] If the argument is unknown (eg. an unresolved label) in the first pass, the assembler will assume it’s a 16 bit value
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