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Freespace Usage
This page documents the available freespace in the vanilla SM rom, as well as the freespace usage by the practice hack. This can help determine where to place new code/data, or which bits of code/data might be overlapping with a romhack's data.
Vanilla SM Freespace Address Range, Size (in hex bytes)
- Practice Hack ORG Address, Approximate Size (in hex bytes), Filename " debug print text"
Practice hack ORG sizes are very likely to change. Do not expect these values to be updated here. Add PAUSE to the end of the build script to read the debug print text and determine exact sizes. TinyStates uses the most freespace.
$CD8E-$FFC0, 3232h bytes free
- $E000, 1BCh, crash.asm " crash handler bank80 start"
- $F000, 43Bh, presets.asm " presets bank80 start"
- $F600, 439h, save.asm " save start"
- $F600, 632h, tinystates.asm " tinysave start"
- $FD00, 226h, infohud.asm " infohud bank80 start"
- $FF80, 11h, cutscenes.asm " cutscenes bank80 start"
$EF1A-$FF00, FE6h bytes free
$FF60-$FFFF, A0h bytes free
- $EF20, 8Dh, spriteprio.asm " spriteprio start"
- $F000, 177h, init.asm " init start"
$F70F-$FFFF, 8F1h bytes free
- $F70F, 8Ch, minimap.asm " minimap bank82 start"
- $F800, 48h, layout.asm " layout bank82 start"
- $FA00, 348h, presets.asm " presets bank82 start"
- $FE00, 9Dh, tinystates.asm " tinysave bank82 start"
$AD66-$FFFF, 529Ah bytes free
- $B000, 18Ah, rng.asm " rng start"
- $B400, 87Eh, custompresets.asm " custompresets start"
$EFD3-$FFFF, 102Dh bytes free
$9643-$FFFF, 69BDh bytes free
- $9643, 18Ch, fanfare.asm " fanfare message start"
- $C000, 1485h, mainmenu.asm " mainmenu InfoHUD start"
- $F800, 2E6h, gamemode.asm " gamemode start"
- $FD00, 2Ch, menu.asm " menu bank85 start"
- $FE00, DDh, fanfare.asm " fanfare start"
$F4A6-$FFFF, B5Ah bytes free
$C964-$FFFF, 369Ch bytes free
$EE32-$FFFF, 11CEh bytes free
- $F000, 4AEh, " cutscenes bank88 start"
$AEFD-$FFFF, 5103h bytes free
- $B000, 20DEh, " menu start"
- $D0C6, CEAh, " crash handler bank89 start"
$E980-$FFFF, 1680h bytes free
$F754-$FFFF, 8ACh bytes free
- $F800, D3h, cutscenes.asm " cutscenes start"
- $FA00, 140h, misc.asm " misc bank8B start"
$F3E9-$FFFF, C17h bytes free
$FFF1-$FFFF, Fh bytes free
$E600-$FFFF, 1A00h bytes free
$E99B-$FFFF, 1665h bytes free
- $EA00, 12EDh, layout.asm " layout start"
$F63A-$FFFF, 9C6h bytes free
- $F640, C8h, **minimap.asm " minimap bank90 start"
- $F800, 15Dh, **misc.asm " misc bank90 start"
- $FE00, E0h, **damage.asm " damage bank90 start"
$FFEE-$FFFF, 12h bytes free
$EDF4-$FFFF, 120Ch bytes free
$F61D-$FFFF, 9E3h bytes free
- $F61D, 1E4h, **damage.asm " damage bank93 start"
$DC00-$DFFF, 400h bytes free
<full>
$EE21-$FFFF, 11DFh bytes free
$FC20-$FFFF, 3E0h bytes free
$CBFB-$DFFF, 1405h bytes free
$FDA0-$FFFF, 260h bytes free
$FA80-$FFFF, 580h bytes free
$F780-$FFFF, 880h bytes free
$F6C0-$FFFF, 940h bytes free
$F740-$FFFF, 8C0h bytes free
$F7D3-$FFFF, 82Dh bytes free
- $FFD0, 2Ah, damage.asm " damage bankA0 start"
$EBD1-$FFFF, 142Fh bytes free
- $EBD1, 63h, layout.asm " layout bankA1 start"
$F498-$FFFF, B68h bytes free
$F1AB-$FFFF, E55h bytes free
$F6BF-$FFFF, 941h bytes free
- $F700, 3Ch, rng.asm " crocomire rng start"
$F95A-$FFFF, 6A6h bytes free
- $FA00, 29h, rng.asm " draygon rng start"
$FEBC-$FFFF, 144h bytes free
- $FEC0, 6Bh, rng.asm " ridley rng start"
$FF82-$FFFF, 7Eh bytes free
- $FFB6, 49h, rng.asm " kraid rng start"
$F9BE-$FFFF, 642h bytes free
$FB70-$FFFF, 490h bytes free
- $FBC0, 3AAh, cutscenes.asm " cutscenes MB start"
$F7D3-$FFFF, 82Dh bytes free
$F800-$FFFF, 800h bytes free
$EE00-$FFFF, 1200h bytes free
$F444-$FFFF, BBCh bytes free
$FD20-$FFFF, 2E0h bytes free
$EC00-$FFFF, 1400h bytes free
$EE00-$FFFF, 1200h bytes free
<full>
$FEAA-$FFFF, 156h bytes free
$ED77-$FFFF, 1289h bytes free
- $F000, 969h, mainmenu.asm " mainmenu GameMenu start"
$F4B8-$FFFF, B48h bytes free
- $F4B8, Bh, **layout.asm " layout bankB4 start"
$F000-$FFFF, 1000h bytes free
$F200-$FFFF, E00h bytes free
$FD00-$FFFF, 300h bytes free
<empty>
- $8000, 2D8Ah, mainmenu.asm " mainmenu start"
<full>
<full>
$B22E-$FFFF, 4DD2h bytes free
<full>
$D1C0-$FFFF, 2E40h bytes free
$8000-$FFFF, 8000h bytes free (unused music bank)
- $D500, 2000h, minimap.asm " minimap bankDF start"
<empty>
<empty>
- $8800, 15800h, tilegraphics.asm " raw tile tables crossbank start"
<empty>
- $E000, 1BE90h, presets.asm " preset data crossbank start"
<empty>
<empty>
- $8000, 2D29h, infohud.asm " infohud start"
- $E000, ED4h, spritefeat.asm " spritefeat start"
<empty>
- $8000, 69BEh, presets.asm " preset menu bankF1 start"
<empty>
- $8000, 77D3h, presets.asm " preset menu bankF2 start"
<empty>
<empty>
- $8000, 567Ch, tilegraphics.asm " tilegraphics start"
<empty>
- $D800, 4A800h, tilegraphics.asm " raw tiles crossbank start"
<empty>
Need help? Practice Hack maintainers can be found in the SM Speedrunning Discord. #practice-hack