.org $4000
#define scrap 8000h
#include "gfx/bigtile.z80"
#include "isort.z80"
;#include "compile.z80"

drawrect:
#include "gfx/drawrect.z80"
#include "math/rand_single.z80"
#include "math/atanbin.z80"
#include "gfx/circle.z80"
#include "gfx/filledcircle.z80"
#include "gfx/tilemap.z80"

p1_GraphToLCD:
#include "gfx/gbufToLCD_speed.z80"

call_ix_01:
  jp (ix)

pixelOn_pattern:
  call getpixelloc
  ret nc
  or (hl)
  ld (hl),a
  ret
pixelOff_pattern:
  call getpixelloc
  ret nc
  cpl
  and (hl)
  ld (hl),a
  ret
pixelToggle_pattern:
  call getpixelloc
  ret nc
  xor (hl)
  ld (hl),a
  ret

#include "absSingle.z80"
#include "negSingle.z80"
#include "cmpSingle.z80"

#include "randSingle.z80"

#include "acosSingle.z80"
#include "asinSingle.z80"
#include "atanSingle.z80"
#include "acoshSingle.z80"
#include "asinhSingle.z80"
#include "atanhSingle.z80"
#include "coshSingle.z80"
#include "sinhSingle.z80"
#include "tanhSingle.z80"
#include "tanSingle.z80"


#include "powSingle.z80"
#include "pow10Single.z80"
#include "logSingle.z80"
#include "lgSingle.z80"
#include "log10Single.z80"

#include "single2str.z80"
#include "str2single.z80"
#include "singleTo_int16.z80"


#ifdef INCLUDE_GRAMPKG
grampkg_start:
#define EXCLUDE_GRAMPKG_INC
#include "grampkg.z80"
grampkg_end:
#endif

menu_code_start:
#include "cmd/menu.z80"
#include "cmd/searchstring.z80"

#include "io/getKeyChar.z80"
#include "io/getKeyTok.z80"
#include "io/input.z80"
#include "io/menu.z80"
#include "io/sound.z80"

#include "cmd/prime.z80"
#include "cmd/param.z80"
#include "cmd/solve.z80"
#include "subroutines/searchline.z80"
#include "subroutines/zlz_decomp.z80"
#include "subroutines/zlz_comp.z80"
#include "subroutines/heapsort.z80"
#include "subroutines/zcomp.z80"

p1_PutTokenText:
  ld bc,PutTokenText
  ld (prev_page_call_address),bc
  jp prev_page_call

p1_ParseFullArg:
  ld hl,ParseFullArg
  ld (prev_page_call_address),hl
  jp prev_page_call

p1_ParseNextFullArg:
  ld hl,ParseNextFullArg
  ld (prev_page_call_address),hl
  jp prev_page_call

p1_ParserNext:
  ld hl,ParserNext
  ld (prev_page_call_address),hl
  jp prev_page_call

p1_err_fatal:
p1_err_syntax:
  push hl
  ld hl,err_fatal
  jr jp_prev_page_call

p1_ErrBadToken:
  push hl
  ld hl,ErrBadToken
  jr jp_prev_page_call

p1_ErrStackOverflow_push:
  push hl
  ld hl,ErrStackOverflow_push
  jr jp_prev_page_call

p1_ErrStackOverflow_pop:
  push hl
  ld hl,ErrStackOverflow_pop
  jr jp_prev_page_call

p1_ErrMem:
  push hl
  ld hl,ErrMem
  jr jp_prev_page_call

p1_VarP:
  push hl
  ld hl,VarP
  jr jp_prev_page_call

p1_parse_by_ptr_to_ptr:
  push hl
  ld hl,parse_by_ptr_to_ptr
  jr jp_prev_page_call

p1_GetGrammerStr:
  push hl
  ld hl,GetGrammerStr
  jr jp_prev_page_call

p1_GetVarInfo2:
  push hl
  ld hl,GetVarInfo2
  jr jp_prev_page_call

p1_GetVarInfo:
  push hl
  ld hl,GetVarInfo
  jr jp_prev_page_call

p1_EndOfLine:
  push hl
  ld hl,EndOfLine
  jr jp_prev_page_call

p1_getKeyDebounce:
  push hl
  ld hl,getKeyDebounce
jp_prev_page_call:
  ld (prev_page_call_address),hl
  pop hl
  jp prev_page_call

verify_package:
;A:HL points to the data
;BC is the size of the data
;Returns carry flag reset if good, carry set if bad

;Need to read 4-byte magic number
;Need to read the valid version number and size of table
;Verify that the package has at least 8 bytes
  inc b
  dec b
  jr nz,+_
  ld b,a
  ld a,c
  cp 8
  ld a,b
  ret c
_:
;If magic number doesn't match, then we quit
;If it does match, then we'll assume it is formatted
;correctly. No need to save BC (or DE for that matter)
;Just need A:HL

  ld bc,6
  ld de,cmdShadow
  call ReadArc

;magic number
  ex de,hl
  or a
  ld hl,(cmdShadow)
  .db 1 ;start of ld bc,**
  .db "Gr"
  sbc hl,bc
  scf
  ret nz
  or a
  ld hl,(cmdShadow+2)
  .db 1 ;start of ld bc,**
  .db "am"
  sbc hl,bc
  scf
  ret nz
;pkg version
  ld hl,(cmdShadow+4)
  ld bc,MODULE_VERSION-1
  sbc hl,bc
  ret

FS_find_new:
  ld hl,(FS_begin)
  jr FS_find_new_start

FS_find_new_loop:
  ld b,a
  ld c,a
  cpir
  ld c,(hl)
  inc hl
  ld b,(hl)
  inc hl
  add hl,bc
FS_find_new_start:
  xor a
  cp (hl)
  jr nz,FS_find_new_loop
  ret

FS_createvar_max_01:
;Input:
;   HL points to the name
;   BC is the size of the name (sans null-byte)
;Output:
;   HL points to the data
;   BC is the size
;   DE points to the name
;
  push hl
  push bc

  call FS_find_new
  ;HL points to where to write it
  ;Make sure that HL+BC+2 - (FS_end) < 0
  push hl
  add hl,bc
  inc hl
  inc hl
  ld de,(FS_end)
  ; or a
  sbc hl,de
  jp nc,p1_ErrMem


  ;Now -HL-1 is going to be the size of the var!
  ld a,h
  cpl
  ld h,a
  ld a,l
  cpl
  ld l,a


  pop de
  pop bc
  ex (sp),hl
  ;DE is where to write
  ;HL is the string
  ;BC is the size
  push de
  ldir
  ex de,hl
  pop de
  pop bc
  ld (hl),0
  inc hl
  ld (hl),c
  inc hl
  ld (hl),b
  inc hl
  ret

FS_delvar_01:
  call FS_findvar_01
  add hl,bc
  ; or a
  sbc hl,de
  ; Need to delete HL bytes at DE

  ;Need to set up the buf_end and buf_top, first
  push hl
  ld hl,(FS_end)
  ld (buf_top),hl
  call FS_find_new
  ld (buf_end),hl
  pop bc
  ex de,hl
  call delmem
  ret nc
  jp p1_ErrMem

FS_resize_01:
;HL points to the data
;BC is the new size
  ;Need to set up the buf_end and buf_top, though
  ex de,hl
  push bc
  ld hl,(FS_end)
  ld (buf_top),hl
  call FS_find_new
  ld (buf_end),hl
  pop bc
  ex de,hl

  dec hl
  ld d,(hl)
  ld (hl),b
  dec hl
  ld e,(hl)
  ld (hl),c
  inc hl
  inc hl
  push hl
  push bc

  add hl,bc
  ;HL points to the end of the data
  ;need to deallocate DE-BC bytes (if negative, then bytes are allocated!)
  ex de,hl
;  or a
  sbc hl,bc
  ex de,hl

  ld b,d
  ld c,e
  call delmem
  pop bc
  pop hl
  ret nc
  jp p1_ErrMem

#include "subroutines/insertdelmem.z80"



FS_findvar_01:
;Input:
;   HL points to the name of the var to find
;Output:
;   Carry flag is set if found
;     HL points to the var's data
;     DE pointing to the var name
;     BC is the size
;
  ex de,hl
  ld hl,(FS_begin)
  jr FS_findvar_begin

FS_findvar_loop:

  ;Then assume the file is not malformed
  push hl
  push de
  call cpstr
  pop de
  jr z,FS_file_found
  pop af    ;Don't need to save the pointer to the file name


  ;File not found, so seek the end of the name
  xor a
  ld b,a
  ld c,a
  cpir

  ;Now HL points to the size bytes
  ;need to skip the data
  ld c,(hl)
  inc hl
  ld b,(hl)
  inc hl
  add hl,bc

FS_findvar_begin:
  ;Check if there are any more files
  ld a,(hl)
  or a
  ret z

  ;Check if HL is past FS_end
  ld bc,FS_end
  or a
  sbc hl,bc
  add hl,bc
  ret z
  jr c,FS_findvar_loop
  scf
  ret

FS_file_found:
  inc hl
  ld c,(hl)
  inc hl
  ld b,(hl)
  inc hl
  pop de
  ret

_:
  inc de
  inc hl
cpstr:
;Compare two strings at HL and DE
;returns z if they are equal
;returns c is DE points to the smaller string
;returns nc if DE is the bigger (or equal) string.
  ld a,(de)
  cp (hl)
  ret nz
  or a
  jr nz,-_
  ret

LblToken_01:
  call p1_ParseFullArg
  push bc
  ld h,b
  ld l,c
  call p1_GetGrammerStr
  pop hl
  push bc

  ld de,OP2
  ld a,3Fh
  ld (de),a
  inc de
  ld a,3Ah
  ld (de),a
  inc de
  ldir
  ld a,3Fh
  ld (de),a
  ld hl,(parsePtr)
  ld a,(hl)
  cp 2Bh
  jr nz,+_
  inc hl
  ld (parsePtr),hl
  call p1_GetVarInfo2
  jr nc,LblToken_ptrdone
_:
  ld hl,(progEnd)
  ld de,(progStart)
  or a
  sbc hl,de
  ld b,h
  ld c,l
  ex de,hl
LblToken_ptrdone:
  ld de,OP2
  pop ix
  ld de,3
  add ix,de
  ld de,OP2
  call searchstring_routine
  jp nc,p1_ErrBadToken
  inc hl
  call p1_EndOfLine
  ld b,h
  ld c,l
  ret

#include "tokenhook.z80"
#include "modemenu.z80"

.echo "Page 1: ",$8000-$," bytes remaining"