Ice Bro Lite

Extended manual for Ice Bro Lite

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Expressions

In most fields accepting text input for numeric values natural expressions are allowed, for instance in the Watch field or address fields. etc.

Certain Ice Console commands also accept expressions for values such as poke, eval, etc.

• back to manual

Expression operators are:

• ’==’: 1 if left is same as right side otherwise 0. Can also use ‘=’
• ’<’, ‘<=’, ‘>’, ‘>=”: less than, less or equal, greater, greater or equal. 1 if true otherwise 0
• ’(‘, ‘)’: parenthesis can be used to scope parts of expressions
• ’{‘, ‘}’: 16 bit value at address within { and }, for example {$fffe} would be the current interrupt address
• ’[’, ‘]’: 8 bit value at address within [ and ], for example [1] would be current ROM bank value
• ’+’: sum of left side and right side
• ’-‘: left side subtracted by right side
• ‘*’: product of left and right sides
• ’/’: left side divided by right side
• ‘&’: bitwise and
• ‘&&’: conditional and, if left side and right side are both non-zero this is 1 otherwise 0

• ’	’: bitwise or

• ’

  ’: conditional or

• ’^’: bitwise exclusive or
• ’!’: “not”, if right side is 0 then this is 1, otherwise 0
• ’$’: prefix for hex values
• ’%’: prefix for octal values
• ‘A’, ‘X’, ‘Y’: value of register
• ‘S’: stack pointer
• ‘C’, ‘Z’, ‘I’, ‘D’, ‘V’, ‘N’: value of flag register, each is 0 or 1
• ‘P’: all above flags in one byte