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minor updates
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mgcaret
parent
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commit
74e7fedc9a
36
deschw.s
36
deschw.s
@ -44,6 +44,8 @@
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; Reduce emulator detection to actual emulator for those supporting
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; EMUBYTE, or "probable" if no floating bus detected. If you want more
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; specific identification, see idemu program.
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; 10-Feb-19 MAG => v1.4
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; Detect VidHD
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;.segment "CODE_9000"
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@ -76,7 +78,7 @@ sptREAD = 8
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sptWRITE = 9
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;
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;*********************************************
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MyVersion = $13
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MyVersion = $14
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MinVersion = $11
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;*********************************************
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rts
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@ -105,12 +107,14 @@ totalmem = scratch+1 ;ds.b 4
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emubyte = totalmem+4
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emuver = emubyte+1
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scratch2 = emuver+1
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checkemu = scratch2+1
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checkemu = scratch2+1 ; zero = need to check for emulator
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iie_flag = checkemu+1 ; zero = running on Apple IIe
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; dend
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;
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start:
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lda #$80
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lda #$00
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sta checkemu
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sta iie_flag
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jsr xgetnump
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beq do_all
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lda #'t'+$80 ;system Type
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@ -271,9 +275,7 @@ Not2e1: cmp #$e0
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jsr xmess
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asc ")"
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.byte $00
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.pc02
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stz checkemu
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.p02
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dec checkemu
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rts
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NotLC:
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@ -435,8 +437,8 @@ brokec02:
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rts
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;****************************************************
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emulation:
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lda checkemu ; skip if we positively identified hardware (LC PDS card)
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beq noemu1
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bit checkemu ; skip if we positively identified hardware (LC PDS card)
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bmi noemu1
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sta $c04f ; get emubyte
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lda $c04f ; Emulator ID
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ldy $c04f ; The GS emulators (except Gus) all do version # here
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@ -530,6 +532,7 @@ ss1: jsr scan1
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lda slot
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cmp #8
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bcc ss1
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rts
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;
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scan1: jsr xmess
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@ -659,10 +662,6 @@ PrSlotDesc:
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lda bitpos,y
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and sltbyt
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beq SlotEmpty
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ldy #5
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lda (rom),y
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cmp #$38
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bne notPasc0
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ldy #7
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lda (rom),y
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cmp #$18
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@ -671,7 +670,18 @@ PrSlotDesc:
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lda (rom),y
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cmp #$1
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bne notPasc0
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iny
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ldy #5
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lda (rom),y
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cmp #$38
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beq :+
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cmp #$2C
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bne notPasc0
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; ViDHD
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jsr xmess
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asc "VidHD"
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.byte $00
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rts
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: ldy #$0c
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lda (rom),y
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pha
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jsr xmess
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54
idemu.s
54
idemu.s
@ -19,9 +19,7 @@ temp0 = xczpage
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DX_end_ptab
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DX_desc "Identify emulator."
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DX_main
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;rts
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jsr idemu
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; bcs noemu
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stx temp0
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jsr xprint_path
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lda temp0
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@ -44,17 +42,17 @@ temp0 = xczpage
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sta emuver
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sec
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jsr $fe1f
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bcc doemub ; skip the BS if it claims to be a GS
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bcc :+ ; skip to checking emubute if it's a IIgs
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; okay, let's check for some obvious things first
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lda $fbb3
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cmp #$06 ; Apple IIe or better
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bne :+
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lda $fbdd
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cmp #$02 ; PDS card or IIe for classic MacOS
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cmp #$02 ; LC PDS card or "IIe" for classic MacOS
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bne :+
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lda $fbde
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cmp #$40 ; IIe for classic MacOS
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bne iiecard
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bne iiecard ; If not, it's Apple IIe Card for Mac.
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ldy #<emIIe
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lda #>emIIe
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bne foundemu1
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@ -63,50 +61,34 @@ iiecard: lda $fbbe
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ldy #<emPDS
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lda #>emPDS
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bne foundemu1
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: jmp doemub ; fall back to emubyte
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;
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; Routine to handle emulator detected, but emubyte=$00
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zeroid: sec
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; Identify by emubyte value if possible
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: jsr getemub
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bne noemu ; floating bus, not emu or a really good one
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cmp #$00 ; yes this is needed
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bne ckcatak ; if not zero, go check for Catakig
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sta emuver ; zero out the version
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sec
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jsr $fe1f ; is GS?
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bcs :+
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bcs :+ ; nope, skip forward
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ldy #<emGus ; assume Gus if GS and ID 0
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lda #>emGus
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bne foundemu1
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; check for Virtual II
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: ldy #$00
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ldx #$10 ; loop to check for Virtual ][
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viilp: lda $c04f
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and #$b0
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cmp #$b0 ; VII has mostly this here
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bne :+
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iny
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: dex
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bne viilp
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cpy #$0d ; more than 14 $Bx?
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bcc :+ ; nope
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stx emuver ; zero version
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ldy #<emVII
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lda #>emVII
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bne foundemu1
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; check for Apple IIjs or jse
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; which always have zeros from $c001-$c00f
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: lda #$00
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ldx #$0f
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jslp: lda $c000,x
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bne :+
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bne :+ ; find nonzero, move on
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dex
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bne jslp
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stx emuver
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stx emuver ; zero emuver
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ldy #<emJS
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lda #>emJS
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bne foundemu1
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: jmp unkemu
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; Routine to identify by emubyte value if possible
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doemub: jsr getemub
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bne noemu
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cmp #$00 ; yes this is needed
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beq zeroid ; do zero identification
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cmp #$ad ; Catakig always has this in $c04f
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: ldy #<emVII ; Not one of those, just assume Virtual ][
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lda #>emVII
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bne foundemu1
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ckcatak: cmp #$ad ; Catakig always has this in $c04f
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bne :+
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lda #$00
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sta emuver ; catakig doesn't have a version byte
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@ -199,7 +181,7 @@ emNone: pstr_hi "None identified"
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emUnk: pstr_hi "Unknown, emubyte = $XX"
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unkemub = *-2
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emPDS: pstr_hi "Apple IIe Card"
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emVII: pstr_hi "Virtual ]["
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emVII: pstr_hi "Virtual ][ (probably)"
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emIIe: pstr_hi "IIe"
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emGus: pstr_hi "Gus (probably)"
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emCatak: pstr_hi "Catakig"
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