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# A2osX Macro Assembler (0.94) # A2osX Macro Assembler (0.95)
## Description ## Description
@ -33,7 +33,7 @@ Table-driven, add your favorite CPU creating a new CPU asm.xxxx file.
| .BS | Block (Byte) Storage | S-C, A2osX | Working | `.BS count[,value]` | Reserves `count` bytes in output and sets them to `value` (or zero if omitted) | | .BS | Block (Byte) Storage | S-C, A2osX | Working | `.BS count[,value]` | Reserves `count` bytes in output and sets them to `value` (or zero if omitted) |
| .CS | C-string | S-C 3.1, A2osX | Working | `.CS "text\a\b\e\f\n\r\n\r\t\v"` | | | .CS | C-string | S-C 3.1, A2osX | Working | `.CS "text\a\b\e\f\n\r\n\r\t\v"` | |
| .CZ | C-String Zero terminated| S-C 3.1, A2osX | Working | (same as above) | ZERO-terminated | | .CZ | C-String Zero terminated| S-C 3.1, A2osX | Working | (same as above) | ZERO-terminated |
| .DA | DAta value | S-C, A2osX | Working | `.DA value` | 2-byte address: `.DA $1234` only high byte: `.DA /$1234` only low byte: `.DA #$1234` | | .DA | DAta value | S-C, A2osX | Working | `.DA value` | 2-byte address: `.DA $1234` (see expressions) |
| .DO | conditional start | S-C, A2osX | Working | | | | .DO | conditional start | S-C, A2osX | Working | | |
| .DU,.DUMMY | begin DUmmy section | S-C, A2osX | Working | | | | .DU,.DUMMY | begin DUmmy section | S-C, A2osX | Working | | |
| .ED | End Dummy section | S-C, A2osX | Working | | | | .ED | End Dummy section | S-C, A2osX | Working | | |
@ -59,6 +59,26 @@ Table-driven, add your favorite CPU creating a new CPU asm.xxxx file.
| .TI | TItle | S-C, A2osX | IGNORED | | | | .TI | TItle | S-C, A2osX | IGNORED | | |
| .US | USer defined | S-C, A2osX | IGNORED | | | | .US | USer defined | S-C, A2osX | IGNORED | | |
## Expressions
| Code | Description | Scope |
|-|-|-|
| \- | Negate : `.AS -"String"` output | .AS .AT .AZ .CS .CZ |
| \' | Char, MSB=0 `lda #'a | OPCODES |
| \" | Char, MSB=1 `lda #"a | OPCODES |
| \# | Immediate LO byte : `.DA #$1234` output 34 | .DA |
| \/ | Immediate HI byte : `.DA /$1234` output 12 | .DA
| \^ | Immediate 3rd byte : `.DA ^$123456` output 12 | .DA |
| \< | Force 24 bits output LO : `.DA <$123456` output 56 34 12 | .DA |
| \> | Force 32 bits output LO : `.DA >$123456` output 00 56 34 12 | .DA |
|-|-|-|
| \> | Force 16 bits operand : `ldx >ZP.A1L` output AE 3C 00 | OPCODES |
| \>\> | Force 24 bits operand : `lda >>ZP.A1L` output AF 3C 00 00 | OPCODES |
|-|-|-|
| \#\# | Immediate word LO : `lda ##IMMVAL` | 65816 OPCODES |
| \/\/ | Immediate word MID : `lda //IMMVAL` | 65816 OPCODES |
| \^\^ | Immediate word HI: `lda ^^IMMVAL` | 65816 OPCODES |
## License ## License
A2osX is licensed under the GNU General Pulic License. A2osX is licensed under the GNU General Pulic License.
@ -76,4 +96,4 @@ The full A2osX license can be found **[Here](../LICENSE)**.
## Copyright ## Copyright
Copyright 2015 - 2022, Remy Gibert and the A2osX contributors. Copyright 2015 - 2024, Remy Gibert and the A2osX contributors.