GL6 vwf asm.asm

;0x20 (space) character isnt stored in s1 like every other character due
;to different width calculation, this made our s1 check unreliable anytime
;an space was in the text
;a3 is 1 whenever an space is procesed, and they mirror t0 otherwise
;s3 holds the address for the next character to be drawn
;t0 holds double byte characters, so we can use that to check for ASCII characters
;as s0 is unreliable
;Note1: Some move operations need delay before we can read the correct value
;this is important if we want the game to run in original hardware :P


li	s0,0x003D79A0 
sw	s1,(s0) ;we store s1 in the address we set-up on s0

;Check is a3 == 1
li	s0,0x1              ;This needs to inputted as 'addiu s0,zero,0x1' in PCSX2 for it to work
beql	s0,a3,variableWidth ;if a3 is 1 we jump directly to our VWF code
nop	

;check if the character is double bytes
andi	s0,t0,0xFF00
bnez	s0,originalFunction ;if the result of the AND is not zero we jump to the original
nop	                    ;function as that means this is a SHIFT-JIS char

variableWidth:
li	s0,table_address
lbu	s1,-0x1(s3) ;We use s3 to get the correct space character (0x20)
addu	s0,s1
lbu	s0,(s0)  
mtc1	s0,f23 
nop          ;Check note 1 as for why this nop is here
cvt.s.w	f23,f23
j	originalFunction

originalFunction:
li	s0,0x003D79A0
lw	s1,(s0) ;We load back original s1 from the address we set-up at the start
or	s0,zero,zero ;reset s0 back to zero
add.s	f26,f26,f23
addiu	s6,0x1
j	pos_00151DB0 ;back to original function