47 lines
2.5 KiB
ArmAsm
47 lines
2.5 KiB
ArmAsm
; Static System Variables
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; Name Address Size Status Comment
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z0 = $0 ; 8 bit All Purpose 16 bit Zero Page Variable
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z1 = $1 ; 8 bit
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irq_a = $200 ; 8 bit (internal) IRQ Variable Save
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irq_x = $201 ; 8 bit (internal)
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irq_y = $202 ; 8 bit (internal)
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irq_vector = $203 ; 16 bit IRQ 16 bit Jump Vector
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k0 = $205 ; 8 bit General Purpose Registers
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k1 = $206 ; 8 bit ...
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k2 = $207 ; 8 bit
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k3 = $208 ; 8 bit
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k4 = $209 ; 8 bit
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k5 = $20a ; 8 bit
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k6 = $20b ; 8 bit
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k7 = $20c ; 8 bit
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keyboard_current = $20d ; 8 bit Held Keyboard Key, without Formatting (shift, etc.) "Scan Key"
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keyboard_previous = $20e ; 8 bit Previous held "Scan Key"
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keyboard_format = $20f ; 8 bit Formatted Char, from keyboard_current
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keyboard_arrow = $210 ; 8 bit Held Arrow Keys
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keyboard_modifier = $211 ; 8 bit Held Modifier Keys, such as "shift, alt, control"
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cursor_x = $212 ; 8 bit Current Cursor X Position
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cursor_y = $213 ; 8 bit Current Cursor Y Position
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cursor_x_previous = $214 ; 8 bit (internal) Previous Cursor X Position
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cursor_y_previous = $215 ; 8 bit (internal) Previous Cursor Y Position
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cursor_value = $216 ; 8 bit
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cursor_speed = $217 ; 8 bit Cursor Blink Speed (in IRQ Ticks)
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cursor_speed_count = $218 ; 8 bit (internal) Cursor Blink Speed Counter
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cursor_delay_interval = $219 ; 8 bit
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cursor_delay = $21a ; 8 bit
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cursor_delay_count = $21b ; 8 bit (internal)
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cursor_delay_switch = $21c ; 8 bit (internal)
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soft_system_register = $21d ; 8 bit (internal)
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color = $2fe ; 8 bit Fore & Background Color
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typelength = $2ff ; 8 bit Length of typebuffer
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typebuffer = $300 ; 256 bit 256 bit, All Purpose Char Buffer
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