Did a ton of stuff.

- Changed the file structure of the SuB Suite, so that
  all variable declarations, symbols, and constants
  are in a single file.

- Moved the C library functionss into a separate
  file, and made them use stack frames.

- Added support for using the emulator's assembler for
  realtime debugging, to enter it, get in to stepping
  mode by pressing Ctrl+s, press any other key, then
  press F1,
  The reason for having to press some other key before
  pressing F1 is because it only allows entering the
  assembler when the keyboard is not ready.

- Added the ".res" directive to the emulator's
  assembler, the ".res" directive tells the assembler
  to reserve however many bytes specified by the
  operand.

- Fixed some bugs in the emulator's assembler.

1 files changed, 430 insertions, 0 deletions

diff --git a/programs/sub-suite/declare.s b/programs/sub-suite/declare.s
new file mode 100644
index 0000000..745445b
--- /dev/null
+++ b/programs/sub-suite/declare.s
@@ -0,0 +1,430 @@
+
+; Enums.
+
+; I/O constants.
+status	= $100		; Keyboard status.
+scr	= $101		; Character that is to be printed.
+kbd	= $102		; Character from the Keyboard.
+step	= $110		; Enables clock stepping, when set.
+
+; Screen constants.
+maxrow	= 23		; Screen's row count.
+maxcol	= 79		; Screen's column count.
+
+MAX_SYM = $800		; Max symbol size.
+OPNUM	= 87		; Instruction count.
+
+; Directives.
+DIR_ORG     =  0	; Origin.
+DIR_BYTE    =  1	; Byte  =  8 bits.
+DIR_WORD    =  2	; Word  = 16 bits.
+DIR_DWORD   =  3	; Dword = 32 bits.
+DIR_QWORD   =  4	; Qword = 64 bits.
+DIR_INCL    =  5	; Include.
+DIR_RES     =  6	; Reserved bytes.
+
+; Tokens.
+TOK_DIR     =  0	; Directive.
+TOK_LOCAL   =  1	; Local syobol.
+TOK_LABEL   =  2	; Label.
+TOK_SYM     =  3	; Symbol.
+TOK_EXPR    =  4	; Expression.
+TOK_CSV     =  5	; Comma separated value.
+TOK_STR     =  6	; String.
+TOK_CHAR    =  7	; Character.
+TOK_IND     =  8	; Indirect addressing.
+TOK_IMM     =  9	; Immediate data.
+TOK_MNE     = 10	; Opcode/Mnemonic.
+TOK_RS      = 11	; Register size prefix.
+TOK_COMM    = 12	; Comment.
+TOK_HEX     = 13	; Hex value.
+TOK_DEC     = 14	; Decimal value.
+TOK_BIN     = 15	; Binary value.
+TOK_INCL    = 16	; Include file.
+
+; Pre-Tokens.
+PTOK_DOT    =  0	; .
+PTOK_AT     =  1	; @
+PTOK_COLON  =  2	; :
+PTOK_EQU    =  3	; =
+PTOK_PLUS   =  4	; +
+PTOK_MINUS  =  5	; -
+PTOK_GT     =  6	; >
+PTOK_LT     =  7	; <
+PTOK_LBRAK  =  8	; (
+PTOK_RBRAK  =  9	; )
+PTOK_COMMA  = 10	; ,
+PTOK_X      = 11	; x
+PTOK_Y      = 12	; y
+PTOK_S      = 13	; s
+PTOK_P      = 14	; p
+PTOK_DQUOT  = 15	; "
+PTOK_SQUOT  = 16	; '
+PTOK_HASH   = 17	; #
+PTOK_SCOLN  = 18	; ;
+PTOK_DOLR   = 19	; $
+PTOK_PRCNT  = 20	; %
+PTOK_NUM    = 21	; 0-9
+PTOK_ALPH   = 22	; a-z A-Z
+PTOK_OTHR   = 23	; Everything else.
+
+; Expressions.
+EXPR_PLUS   =  0	; Plus.
+EXPR_MINUS  =  1	; Minus.
+EXPR_LOW    =  2	; Lower half of address.
+EXPR_HIGH   =  3	; Upper half of address.
+EXPR_NONE   =  4	; No expression.
+
+; RAM declarations.
+
+; Linewrap table.
+.org $30000
+bitabl:
+	.res $1000
+
+; Screen buffer.
+buffer:
+	.res $2000
+
+; Command buffer.
+cmd_buf:
+	.res $400
+
+; Screen variables.
+.org 0
+scr_row:
+	.res 1
+scr_col:
+	.res 1
+scr_trow:
+	.res 1
+scr_tcol:
+	.res 1
+scr_ptr:
+	.res 2
+scr_ptr2:
+	.res 2
+scr_ptr3:
+	.res 2
+
+; Pseudo registers.
+a:
+	.res 1
+b:
+	.res 1
+c:
+	.res 1
+d:
+	.res 1
+e:
+	.res 1
+f:
+	.res 1
+g:
+	.res 1
+; This pseudo register is always zero.
+zero:
+	.res 8
+; End of pseudo registers.
+
+end:
+	.res 8
+bitmask:
+	.res 1
+scr_str:
+	.res 1
+scr_end:
+	.res 1
+wrapped:
+	.res 1
+
+; Pointers
+ptr:
+	.res 8
+ptr2:
+	.res 8
+ptr3:
+	.res 8
+
+
+; Token table.
+.org $20000
+tokline:
+	.res $400
+
+; Program Counter.
+prg_cnt:
+	.res 8
+; Hex digit string buffer.
+hex_str:
+	.res 16
+; String buffer.
+strbuf:
+	.res $80
+
+; Subroutine pointer.
+sub_ptr:
+	.res 2
+
+; Indecies.
+idx0:
+	.res 8
+idx1:
+	.res 8
+idx2:
+	.res 8
+idx3:
+	.res 8
+
+; Value buffer used by strtoull.
+valbuf:
+	.res 8
+
+; Copy buffer used by delmcpy.
+cpybuf:
+	.res 8
+
+; Current token line.
+ctok:
+	.res 2
+
+; Last token line.
+ltok:
+	.res 2
+
+; Lexeme type.
+lex_type:
+	.res 1
+
+; Lexeme string.
+lexeme:
+	.res $100
+
+; Symbol table.
+sym:
+	.res $8000
+
+; Fixup table.
+; Fixups are unresolved symbols.
+fix:
+	.res $2000
+
+; ROM data declarations.
+
+.org $A000
+; String Literals/Constants.
+tok:
+	.byte "dab"
+msg:
+	.byte "oof, you divided a, and b on me.\n"
+
+ed_name:
+	.byte "SuBEditor"
+ed_ver:
+	.byte "1"
+ed_sver:
+	.byte ".0.0"
+
+ver_str:
+	.byte ", version "
+made:
+	.byte "Created by, "
+
+author:
+	.byte "mr b0nk 500"
+
+string2:
+	.byte "You typed, "
+
+asm_name:
+	.byte "SuBAsm"
+asm_ver:
+	.byte "0.1"
+
+; Directives.
+dir:
+	.byte "org"
+	.byte "byte"
+	.byte "word"
+	.byte "dword"
+	.byte "qword"
+	.byte "include"
+	.byte "res"
+
+; Short form Commands.
+sh_cmds:
+	.byte "vlahirs"
+
+; Commands.
+cmds:
+	.byte "viewmem"
+	.byte "list"
+	.byte "asm"
+	.byte "help"
+	.byte "inst"
+	.byte "run"
+	.byte "set"
+
+; Linewrap bitmask table.
+bits:
+	.byte $80, $40, $20, $10, $08, $04, $02, $01
+
+
+; Instruction mnemonics, and opcodes.
+
+; Legend.
+; mne = Mnemonic.
+; imm = Immediate data.
+; zm  = Zero Matrix.
+; zmx = Zero Matrix, indexed with X.
+; zmy = Zero Matrix, indexed with Y.
+; ind = Indirect.
+; idx = Indexed Indirect.
+; idy = Indirect Indexed.
+; abs = Absolute.
+; rel = Relative.
+; imp = Implied.
+
+mne:
+;	       mne   imm,  zm, zmx, zmy, ind, idx, idy, abs, rel, imp
+	.byte "ADC", $01, $06, $FF, $FF, $FF, $FF, $FF, $04, $FF, $FF
+	.byte "AAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $02
+	.byte "ABA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $22
+	.byte "ADC", $01, $06, $FF, $FF, $FF, $FF, $FF, $04, $FF, $FF
+	.byte "AND", $21, $26, $FF, $FF, $FF, $FF, $FF, $24, $FF, $FF
+	.byte "ARB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $F2
+	.byte "ASR", $F1, $F6, $FF, $FF, $FF, $FF, $FF, $F4, $FF, $FF
+	.byte "BCC", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $80, $FF
+	.byte "BCS", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $70, $FF
+	.byte "BEQ", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $90, $FF
+	.byte "BNE", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $A0, $FF
+	.byte "BNG", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $60, $FF
+	.byte "BPO", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $50, $FF
+	.byte "BRA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $D0, $FF
+	.byte "BRK", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $68
+	.byte "BVC", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $C0, $FF
+	.byte "BVS", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $B0, $FF
+	.byte "CAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $B2
+	.byte "CLC", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $08
+	.byte "CLI", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $28
+	.byte "CLV", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $48
+	.byte "CMP", $B1, $B6, $FF, $FF, $25, $7D, $7C, $B4, $FF, $FF
+	.byte "CPB", $2A, $2D, $FF, $FF, $55, $AD, $AC, $2C, $FF, $FF
+	.byte "CPS", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $00
+	.byte "CPX", $3A, $4D, $FF, $FF, $FF, $FF, $FF, $3C, $FF, $FF
+	.byte "CPY", $4A, $3D, $FF, $FF, $FF, $FF, $FF, $4C, $FF, $FF
+	.byte "DAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $A2
+	.byte "DEB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $C2
+	.byte "DEC", $FF, $0D, $FF, $FF, $FF, $FF, $FF, $0C, $FF, $0A
+	.byte "DEX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $09
+	.byte "DEY", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $29
+	.byte "DIV", $A1, $A6, $FF, $FF, $FF, $FF, $FF, $A4, $FF, $FF
+	.byte "INB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $D2
+	.byte "INC", $FF, $1D, $FF, $FF, $FF, $FF, $FF, $1C, $FF, $1A
+	.byte "INX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $19
+	.byte "INY", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $39
+	.byte "JMP", $FF, $30, $FF, $FF, $B5, $FF, $FF, $10, $FF, $FF
+	.byte "JSR", $FF, $40, $FF, $FF, $A5, $FF, $FF, $20, $FF, $FF
+	.byte "LDA", $C1, $C6, $B8, $78, $05, $5D, $5C, $C4, $FF, $FF
+	.byte "LDB", $D1, $D6, $D8, $98, $35, $8D, $8C, $D4, $FF, $FF
+	.byte "LDX", $B9, $BD, $FF, $FF, $85, $FF, $FF, $BC, $FF, $FF
+	.byte "LDY", $E1, $E6, $FF, $FF, $65, $FF, $FF, $E4, $FF, $FF
+	.byte "LLB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $52
+	.byte "LRB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $62
+	.byte "LSL", $51, $56, $FF, $FF, $FF, $FF, $FF, $54, $FF, $FF
+	.byte "LSR", $61, $66, $FF, $FF, $FF, $FF, $FF, $64, $FF, $FF
+	.byte "MAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $92
+	.byte "MUL", $91, $96, $FF, $FF, $FF, $FF, $FF, $94, $FF, $FF
+	.byte "NOP", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $EA
+	.byte "OAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $32
+	.byte "ORA", $31, $36, $FF, $FF, $FF, $FF, $FF, $34, $FF, $FF
+	.byte "PHA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $79
+	.byte "PHB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $99
+	.byte "PHP", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $59
+	.byte "PHX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $E9
+	.byte "PHY", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $C9
+	.byte "PLA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $89
+	.byte "PLB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $A9
+	.byte "PLP", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $69
+	.byte "PLX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $F9
+	.byte "PLY", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $D9
+	.byte "RLB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $72
+	.byte "ROL", $71, $76, $FF, $FF, $FF, $FF, $FF, $74, $FF, $FF
+	.byte "ROR", $81, $86, $FF, $FF, $FF, $FF, $FF, $84, $FF, $FF
+	.byte "RRB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $82
+	.byte "RTI", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $F0
+	.byte "RTS", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $E0
+	.byte "SAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $12
+	.byte "SBC", $11, $16, $FF, $FF, $FF, $FF, $FF, $14, $FF, $FF
+	.byte "SEC", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $18
+	.byte "SEI", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $38
+	.byte "STA", $FF, $CD, $C8, $88, $15, $6D, $6C, $CC, $FF, $FF
+	.byte "STB", $FF, $DD, $E8, $A8, $45, $9D, $9C, $DC, $FF, $FF
+	.byte "STX", $FF, $FD, $FF, $FF, $95, $FF, $FF, $FC, $FF, $FF
+	.byte "STY", $FF, $ED, $FF, $FF, $75, $FF, $FF, $EC, $FF, $FF
+	.byte "TAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $5A
+	.byte "TAX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $9A
+	.byte "TAY", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $7A
+	.byte "TBA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $6A
+	.byte "TSX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $DA
+	.byte "TXA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $AA
+	.byte "TXS", $FA, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF
+	.byte "TXY", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $CA
+	.byte "TYA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $8A
+	.byte "TYX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $BA
+	.byte "WAI", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $58
+	.byte "XAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $42
+	.byte "XOR", $41, $46, $FF, $FF, $FF, $FF, $FF, $44, $FF, $FF
+
+; Command subroutine table.
+cmd_srt:
+	.word viewmem
+	.word list
+	.word asm
+	.word help
+	.word inst
+	.word run
+	.word set
+
+
+; Jump table for parsing pre-tokens.
+swtab:
+	.word ptok_dot	; PTOK_DOT
+	.word ptok_at	; PTOK_AT
+	.word ptok_col	; PTOK_COLON
+	.word ptok_equ	; PTOK_EQU
+	.word ptok_plus	; PTOK_PLUS
+	.word ptok_min	; PTOK_MINUS
+	.word ptok_gt	; PTOK_GT
+	.word ptok_lt	; PTOK_LT
+	.word ptok_lbrk	; PTOK_LBRAK
+	.word ptok_rbrk	; PTOK_RBRAK
+	.word ptok_com	; PTOK_COMMA
+	.word ptok_xr	; PTOK_X
+	.word ptok_yr	; PTOK_Y
+	.word ptok_sp	; PTOK_S
+	.word ptok_pc	; PTOK_P
+	.word ptok_dqu	; PTOK_DQUOT
+	.word ptok_squ	; PTOK_SQUOT
+	.word ptok_hash	; PTOK_HASH
+	.word ptok_scol	; PTOK_SCOLN
+	.word ptok_dolr	; PTOK_DOLR
+	.word ptok_prcn	; PTOK_PRCNT
+	.word ptok_num	; PTOK_NUM
+	.word ptok_alph	; PTOK_ALPH
+	.word ptok_othr	; PTOK_OTHR
+
+
+; Hex character table.
+hex_char:
+	.byte "0123456789ABCDEF"
+
+; Compare, and return table for pre-tokens.
+ptok_tab:
+	.byte ".@:=+-><(),xysp\"\'#;$%"
+; Compare, and return table for isdelm.
+dtab:
+	.byte "\n,\"\' \\"
+; Compare, and return table for isdelm2.
+dtab2:
+	.byte "),.+<>-=;\n"