Remaking Real Time world edit

[dragonboy269]

Well, I'm remaking Real-time world edit so I can understand how it works
I think I understand, but my source so far is nowhere near as neat as Toenailed's

Here's what I have so far, this checks the space you're in (I just started a few minutes ago, so there might be errors and stuff like that

If you think I'm on the right track, just say so XD (just say if I'm right or wrong, I wanna figure it out on my own so don't tell me what I should do)

add r2,pc,#1            
bx r2
.thumb

ldr r0,CheckLocation
ldrb r0,[r0]
cmp r0,#5
bgt Exit


ldr r1,CoordinatesPointer

ldr r1,[r1]
mov r2,#0xA9
lsl r2,#3
neg r2,r2
ldr r3,[r1,r2]
lsr r3,#0xC
cmp r3,#0x20
blt Exit
cmp r3,#0xA0
bgt Exit

add r2,#8
ldr r2,[r1,r2]
lsr r2,#0xC
cmp r2,#0x20
blt Exit
cmp r3,#0xA0
bgt Exit

lsr r3,#1
lsr r2,#1
sub r3,#0x10
sub r2,#0x10

@r3 holds Row number
@r2 holds column number

And yes I start all codes like this, I jump right in without planning anything and hope it works in the end XD




Update: I got it to work (no dpad check just yet though) XD

Tell me what you think Got it working on my second try (first time I accidentally put a lsr instead of a lsl, that's all that was wrong XD)

add r2,pc,#1            
bx r2
.thumb


ldr r1,CoordinatesPointer

ldr r1,[r1]
mov r2,#0xA9
lsl r2,#3
neg r2,r2
ldr r3,[r1,r2]
lsr r3,#0xC
cmp r3,#0x20
blt Exit
cmp r3,#0xA0
bgt Exit

add r2,#8
ldr r2,[r1,r2]
lsr r2,#0xC
cmp r2,#0x20
blt Exit
cmp r3,#0xA0
bgt Exit

lsr r3,#1
lsr r2,#1
sub r3,#0x10
sub r2,#0x10

mov r0,#0
mov r4,#0

Divide1:
cmp r3,#16
blt Divide2
sub r3,#16
add r0,#1
b Divide1

Divide2:
cmp r2,#16
blt Finish
sub r2,#16
add r4,#1
b Divide2

Finish:
@r0 holds y box #0x200
@r4 holds x box #0x800
@r3 holds column #0x2
@r2 holds row #0x20

lsl r3,#1
mov r1,#0x20
mul r2,r1
lsl r1,#4
mul r0,r1
lsl r1,#2
mul r4,r1

ldr r1,Map
add r1,r4
add r1,r0
add r1,r2
add r1,r3
mov r4,r1

@[texttoItem] = r5
ldr r1, Text
mov r5,#0x0
mov r0,#0xC
mov r2,#0xF
loop:
ldrb r3,[r1]
add r1,#0x1
cmp r3,#0x3A
blt number
add r3,#0x9
number:
and r3,r2
lsl r3,r0
add r5,r3
sub r0,#0x4
bpl loop

strh r5,[r4]
Exit:
bx lr





.arm
CoordinatesPointer:
.long 0x21C6DEC
CheckLocation:
.long 0x21EED6C
Map:
.long 0x21E3124
Text:
.long 0x22AF136

Credit to Toenailed for the Text to item routine, I'll add my own later but I was just lazy and really wanted to make sure it worked before I went to bed

Compiled AR code:
L+R

94000130 FCFF0000
023FF090 012FFF11
E0000000 00000098
E28F2001 E12FFF12
6809491F 00D222A9
588B4252 2B200B1B
2BA0DB34 3208DC32
0B12588A DB2D2A20
DC2B2BA0 0852085B
3A103B10 24002000
DB022B10 30013B10
2A10E7FA 3A10DB02
E7FA3401 2120005B
0109434A 00894348
490D434C 18091909
18C91889 490B1C0C
200C2500 780B220F
2B3A3101 3309DB00
40834013 380418ED
8025D5F5 00004770
021C6DEC 021EED6C
021E3124 022AF136
023FF090 E3520003
D2000000 00000000

(021EED6C is in there so I can make it work in player houses later)