mirror of
https://github.com/lscharen/iigs-game-engine.git
synced 2024-11-30 02:49:25 +00:00
106 lines
1.4 KiB
ArmAsm
106 lines
1.4 KiB
ArmAsm
HexToChar dfb '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
|
|
|
|
; Convert a byte (Acc) into a string and store at (Y)
|
|
ByteToString and #$00FF
|
|
sep #$20
|
|
pha
|
|
lsr
|
|
lsr
|
|
lsr
|
|
lsr
|
|
and #$0F
|
|
tax
|
|
ldal HexToChar,x
|
|
sta: $0000,y
|
|
|
|
pla
|
|
and #$0F
|
|
tax
|
|
ldal HexToChar,x
|
|
sta: $0001,y
|
|
|
|
rep #$20
|
|
rts
|
|
|
|
; Convert a word (Acc) into a hexadecimal string and store at (Y)
|
|
WordToString pha
|
|
bra Addr2ToString
|
|
|
|
; Pass in Acc = High, X = low
|
|
Addr3ToString phx
|
|
jsr ByteToString
|
|
iny
|
|
iny
|
|
lda 1,s
|
|
Addr2ToString xba
|
|
jsr ByteToString
|
|
iny
|
|
iny
|
|
pla
|
|
jsr ByteToString
|
|
rts
|
|
|
|
; A=Value
|
|
; X=Screen offset
|
|
DrawWord phx ; Save register value
|
|
phy
|
|
ldy #WordBuff+1
|
|
jsr WordToString
|
|
ply
|
|
plx
|
|
lda #WordBuff
|
|
jsr DrawString
|
|
rts
|
|
|
|
WordBuff str '0000'
|
|
Addr3Buff str '000000' ; str adds leading length byte
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|