97 lines
979 B
ArmAsm
97 lines
979 B
ArmAsm
.macro EMULATION
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sec ; Enable 8-bit mode
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xce
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.i8
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.a8
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.endmacro
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.macro NATIVE
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clc ; Enable 16-bit mode
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xce
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rep #$30
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.i16
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.a16
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.endmacro
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.macro SHRVIDEO
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sep #$30
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.i8
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.a8
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lda NEWVIDEO
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ora #%11000001
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sta NEWVIDEO
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rep #$30
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.i16
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.a16
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.endmacro
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.macro CLASSICVIDEO
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sep #$30
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.i8
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.a8
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lda NEWVIDEO
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and #%00111111
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sta NEWVIDEO
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rep #$30
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.i16
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.a16
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.endmacro
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;;;;;;;;;;
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; Stack Macros
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.macro SAVE_AXY ; Saves all registers
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pha
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phx
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phy
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.endmacro
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.macro RESTORE_AXY ; Restores all registers
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ply
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plx
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pla
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.endmacro
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.macro SAVE_AY ; Saves accumulator and Y index
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pha
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phy
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.endmacro
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.macro RESTORE_AY ; Restores accumulator and Y index
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ply
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pla
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.endmacro
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.macro SAVE_AX ; Saves accumulator and X index
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pha
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phx
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.endmacro
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.macro RESTORE_AX ; Restores accumulator and X index
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plx
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pla
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.endmacro
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.macro SAVE_XY ; Saves X and Y index
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phx
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phy
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.endmacro
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.macro RESTORE_XY ; Restores X and Y index
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ply
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plx
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.endmacro
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