77 lines
2.3 KiB
NASM
77 lines
2.3 KiB
NASM
;Free Inventory Movement
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;This will make it so that you can place the cursor on empty
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;Cursor Movement:
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;LEFT
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.org 0x803D8B88
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NOP
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;RIGHT
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.org 0x803D8C68
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NOP
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;FROM L
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.org 0x803D8DD0
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.skip 8 0 ;NOP the next 2 commands
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;FROM R
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.org 0x803D8EA8
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.skip 8 0 ;NOP the next 2 commands
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;UP
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.org 0x803D8FAC
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NOP
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;DOWN
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.org 0x803D9004
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NOP
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;Hide Item 0xFF name (on select)
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.org 0x803E2168
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lhu a1, 0x023C(v0) ;
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lhu v1, 0x002A(sp) ;Already there
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slti at, a1, 0x00FF ;
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beql at, zero, 0x803E2338
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;Hide Item 0xFF name (loop)
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.org 0x803E1370
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slti at, t7, 0x00FF ;Set at to 1 if you don't have item 0xFF or a blank slot selected
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.org 0x803E1378
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beql at, zero, 0x803E17E8 ;Branch if you have item 0xFF or a blank slot selected
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;Set Cursor to Default on 0xFF
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.org 0x803D9058
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slti t5, a0, 0x00FF ;t5 = 1 if you have selected an item
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sll t5, t5, 0x0002 ;t5 = t5<<0x2
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NOP ;
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;Make Item 0xFF unequippable (2.0)
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.org 0x803D9140
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addiu at, zero, 0x00FF ;at = 0xFF (Blank)
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lw t6, 0x0048(sp) ;t6 = Item ID
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beq at, t6, 0x803D92FC ;Branch past error sound if item is 0xFF (Blank)
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addiu at, zero, 0x0009 ;at = 0x0009 (Usable by both)
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beq v0, at, + ;Branch if usable by child and adult
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lw t5, 0x0004(s4) ;t5 = Age
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bne v0, t5, 0x803D92D0 ;Branch to error sound if wrong age
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+:
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NOP ;Remove command
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;Hide text when on empty slot
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.org 0x803E1B80
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lhu v0, 0x023E(t0) ;v0 = Selected Item ID
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slti v0, v0, 0x00FF ;v0 = 1 if Selected Item ID is less than 0xFF
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beq v0, zero, 0x803E1D0C ;Branch if item ID is 0xFF or higher
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;Optimized code below
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lbu t6, 0x1409(t2)
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lui t7, 0x8016
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lw t9, 0xFA90(t7)
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sll t8, t6, 0x1
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addu v0, t9, t8
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lw t9, 0x0154(t0)
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lh v0, 0x0DF6(v0)
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sh v0, 0x0120(t9)
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lui a1, 0x803F ;This command need a offset relocation fix. 0x1470 must be added. 0x0000F7FC
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addiu t3, a1, 0x9968
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