124 lines
3.9 KiB
Plaintext
124 lines
3.9 KiB
Plaintext
;;********************************************************************************
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;; @file
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;; @brief Macros for bitwise operations
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;; @ingroup libs
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;;********************************************************************************
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;;********************************************************************************
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;; @macro Use the bbs instruction by providing the bit as a mask
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;; @details
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;; This is useful when having a enum with bitmasks, which might change later.
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;; @param mask: A byte where a single bit is set
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;; @param addr: The zero page address to test
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;; @param label: The label to jump to when the bit is set
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;;********************************************************************************
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.macro bbs mask,addr,label
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.if mask = %00000001
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bbs0 addr,label
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.elseif mask = %00000010
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bbs1 addr,label
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.elseif mask = %00000100
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bbs2 addr,label
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.elseif mask = %00001000
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bbs3 addr,label
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.elseif mask = %00010000
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bbs4 addr,label
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.elseif mask = %00100000
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bbs5 addr,label
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.elseif mask = %01000000
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bbs6 addr,label
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.elseif mask = %10000000
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bbs7 addr,label
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.else
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.fatal .sprintf("bbs macro got invalid mask: %x", mask)
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.endif
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.endmacro
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;;********************************************************************************
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;; @macro Use the bbr instruction by providing the bit as a mask
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;; @details
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;; This is useful when having a enum with bitmasks, which might change later.
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;; @param mask: A byte where a single bit is set
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;; @param addr: The zero page address to test
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;; @param label: The label to jump to when the bit is clear
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;;********************************************************************************
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.macro bbr mask,addr,label
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.if mask = %00000001
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bbr0 addr,label
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.elseif mask = %00000010
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bbr1 addr,label
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.elseif mask = %00000100
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bbr2 addr,label
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.elseif mask = %00001000
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bbr3 addr,label
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.elseif mask = %00010000
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bbr4 addr,label
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.elseif mask = %00100000
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bbr5 addr,label
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.elseif mask = %01000000
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bbr6 addr,label
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.elseif mask = %10000000
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bbr7 addr,label
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.else
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.fatal .sprintf("bbr macro got invalid mask: 0x%x", mask)
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.endif
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.endmacro
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;;********************************************************************************
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;; @macro Use the smb instruction by providing the bit as a mask
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;; @details
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;; This is useful when having a enum with bitmasks, which might change later.
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;; @param mask: A byte where a single bit is set
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;; @param addr: The zero page address to update
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;;********************************************************************************
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.macro smb mask,addr
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.if mask = %00000001
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smb0 addr
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.elseif mask = %00000010
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smb1 addr
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.elseif mask = %00000100
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smb2 addr
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.elseif mask = %00001000
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smb3 addr
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.elseif mask = %00010000
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smb4 addr
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.elseif mask = %00100000
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smb5 addr
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.elseif mask = %01000000
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smb6 addr
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.elseif mask = %10000000
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smb7 addr
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.else
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.fatal .sprintf("smb macro got invalid mask: 0x%x", mask)
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.endif
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.endmacro
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;;********************************************************************************
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;; @macro Use the rmb instruction by providing the bit as a mask
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;; @details
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;; This is useful when having a enum with bitmasks, which might change later.
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;; @param mask: A byte where a single bit is set
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;; @param addr: The zero page address to update
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;;********************************************************************************
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.macro rmb mask,addr
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.if mask = %00000001
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rmb0 addr
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.elseif mask = %00000010
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rmb1 addr
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.elseif mask = %00000100
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rmb2 addr
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.elseif mask = %00001000
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rmb3 addr
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.elseif mask = %00010000
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rmb4 addr
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.elseif mask = %00100000
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rmb5 addr
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.elseif mask = %01000000
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rmb6 addr
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.elseif mask = %10000000
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rmb7 addr
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.else
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.fatal .sprintf("rmb macro got invalid mask: 0x%x", mask)
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.endif
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.endmacro
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