60 lines
1.5 KiB
NASM
60 lines
1.5 KiB
NASM
/////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Persona 2 Eternal Punishment (PSX) JAP / Custom Characters/Data Patch
|
|
// Author: Sergey Shemet 21/11/2025
|
|
//
|
|
// v 1.0 - Patch for city text coords calculations
|
|
//
|
|
|
|
.psx
|
|
|
|
.open "2_EP/BIN/0721_CITYCODE.bin", 0x800AB000
|
|
|
|
.org 0x800c4700
|
|
GetNewChar:
|
|
addiu v1,v1,1
|
|
StartReading:
|
|
lhu v0,0x0(a0) ;a0 - curTextAddr
|
|
nop
|
|
sltiu v0,v0,0x1000
|
|
bne v0,zero,GetNewChar ;if currentChar<1000 - goto next addr+2b
|
|
addiu a0,a0,2
|
|
jr ra
|
|
move v0,v1 ;return v0,v1 - charsNum
|
|
|
|
|
|
RetunCharsToCity:
|
|
lhu v0,0x0(a0)
|
|
nop
|
|
srl v0,v0,0xD ;;;;Check 13th bit (1byte system !!!)
|
|
bne v0,zero,IsMy1byteCity
|
|
clear v1 ;v1 = charCount
|
|
|
|
j StartReading
|
|
nop
|
|
IsMy1byteCity:
|
|
lhu v0,0x0(a0)
|
|
nop
|
|
andi v0,v0,0xff ;Clear from cmd flag
|
|
jr ra
|
|
move v1,v0 ;return v0,v1 - charsNum
|
|
|
|
|
|
|
|
;check lenght for hiuse names for overallcoords calc
|
|
;.org 0x800ad30c
|
|
;jal RetunCharsToCity
|
|
|
|
|
|
;checklenghth for housename RECT
|
|
.org 0x800ad688
|
|
jal RetunCharsToCity
|
|
|
|
|
|
;.org 0x800af1dc
|
|
;jal RetunCharsToCityDiv2 ;OR ReturnCharsInString
|
|
;jal 0x8001af1c
|
|
|
|
.close
|
|
|
|
// compile with ./armips -sym 2_EP/BUILD_LOGS/0721_CITY.map -temp 2_EP/BUILD_LOGS/0721_CITY.txt 2_EP/EP_city_calcs.asm |