Push RA onto the stack (for non-leaf runtime function entry). Call this once at the top of any runtime function that calls other function

P_CheckPosition This is purely informative, nothing is modified (except things picked up). in: a mobj_t (can be valid or invalid) a position to be ch

P_FindLowestFloorSurrounding() FIND LOWEST FLOOR HEIGHT IN SURROUNDING SECTORS

P_SetThingPosition Links a thing into both a block and a subsector based on it's x y. Sets thing->subsector properly

R_FlatNumForName Retrieval, get a flat number for a flat name.

Count leading zeros for 32-bit integer

Emit inline shift left by a fixed amount using doubling. x << shift_amount is achieved by doubling x shift_amount times. Each doubling: x

Read unsigned LEB128 value */

A_Chase Actor has a melee attack, so it tries to close as fast as possible

A_PainShootSkull Spawn a lost soul and launch it at the target

Compares two keys, returning zero if they are the same.

BUILD A STAIRCASE!

TELEPORTATION

HGetPacket Returns false if no packet is waiting

HSendPacket

Takes full 8 bit values.

Menu Functions

Write a string using the hu_font

P_ExplodeMissile

Find minimum light from an adjacent sector

P_LookForPlayers If allaround is false, only look 180 degrees in front. Returns true if a player is targeted.

P_PointOnDivlineSide Returns 0 or 1.

P_UnsetThingPosition Unlinks a thing from block map and sectors. On each position change, BLOCKMAP and other lookups maintaining lists ot things insid

R_GetColumn

Starts some music with the music id found in sounds.h.

V_CopyRect

Generate a 2x-unrolled backward unaligned body loop for fixed shift amount. Uses register renaming: even iterations have WordHigh in T0 and l

Emit bit 31 check and clear for input_reg. If bit 31 set: clears it, jumps to set_label (Z clean). If bit 31 not set: jumps to clear_label (Z

Generate Biased Non-Restoring Lattice code to: 1. Extract T3 into T4 (Result), SKIPPING bits in the target byte range. 2. Add shifted R22

Pop RA from the stack (for non-leaf runtime function exit). Call this once before emit_return_sequence in any runtime function that calle

D_AdvanceDemo Called after each demo or intro demosequence finishes

G_DeathMatchSpawnPlayer Spawns a player at one of the random death match spots called at level load and each death

sorta called by HU_Erase and just better darn get things straight

Resets left margin as well

M_ReadSaveStrings read the strings from the savegame files

Find string width from hu_font chars

M_Ticker

P_CheckAmmo Returns true if there is enough ammo to shoot. If not, selects the next weapon to use.

P_FindHighestFloorSurrounding() FIND HIGHEST FLOOR HEIGHT IN SURROUNDING SECTORS

P_GiveArmor Returns false if the armor is worse than the current armor.

P_GiveBody Returns false if the body isn't needed at all

P_GunShot

P_SpawnPlayerMissile Tries to aim at a nearby monster

Start a button counting down till it turns off.

R_CheckTextureNumForName Check whether texture is available. Filter out NoTexture indicator.

R_FillBackScreen Fills the back screen with a pattern for variable screen sizes Also draws a beveled edge.

Respond to keyboard input events, intercept cheats.

Draws "<Levelname> Finished!"

Emit inline SRL lattice for input_reg >> shift_amount, accumulating into result_reg. Assumes: bit 31 handled/cleared, input biased +1. WA

Generate a 2x-unrolled forward unaligned body loop for fixed shift amount. Uses register renaming: even iterations have word0 in T0 and load