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; Spectrum system variables.
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; This just a list of numbers from various Spectrum manuals.
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; 128k paging
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ZX_BANKM equ 23388 ; All 128k machines
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ZX_BANK678 equ 23399 ; +3/2a only
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; 128k paging I/O ports
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ZX_IO_BANKM equ 0x7FFD
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ZX_IO_BANK678 equ 0x1FFD
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ZX_IO_ULA equ 0xFE
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; Standard system variables
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ZX_KSTATE equ 23552 ; 8 - Used when reading the kb
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ZX_LAST_K equ 23560 ; 1 - Stores newly pressed key
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ZX_REPDEL equ 23561 ; 1 - Time in 50th sec for key repeat
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ZX_REPPER equ 23562 ; 1 - Delay in 50th sec for successive repeats
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ZX_DEFADD equ 23563 ; 2 - Address of args of user defined fn
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ZX_K_DATA equ 23565 ; 1 - 2nd byte of colour controls from kb
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ZX_TVDATA equ 23566 ; 2 - Colour/AT/TAB to display
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ZX_STRMS equ 23568 ; 38 - Addresses of channels attached to strms
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ZX_CHARS equ 23606 ; 2 - 256 less than charset
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ZX_RASP equ 23608 ; 1 - Length of warning buzz
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ZX_PIP equ 23609 ; 1 - Length of kb pip
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ZX_IB equ 23610 ; Interpreter sysvars base address
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ZX_ERR_NR equ 23610 ; 1 - 1 less than the report code.
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ZX_FLAGS equ 23611 ; 1 - Various BASIC flags
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ZX_TV_FLAG equ 23612 ; 1 - Display flags
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ZX_ERR_SP equ 23613 ; 2 - Machine stack for addr. for error return
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ZX_LIST_SP equ 23615 ; 2 - Return address from automatic listing
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ZX_MODE equ 23617 ; 1 - K, L, C, E or G cursor
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ZX_NEWPPC equ 23618 ; 2 - Line to be jumped to
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ZX_NSPPC equ 23620 ; 1 - Stmt number to jump to
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ZX_PPC equ 23621 ; 2 - Line num of statement being exec'd
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ZX_PPC_HI equ 23622 ; MSB of the above
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ZX_PPC_LO equ 23621 ; LSB of the above
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ZX_SUBPPC equ 23623 ; 1 - Number within line of stmt being exec'd
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ZX_BORDCR equ 23624 ; 1 - Border colour * 8
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ZX_E_PPC equ 23625 ; 2 - Number of curr. line with pgm cursor
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ZX_VARS equ 23627 ; 2 - Address of vars
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ZX_DEST equ 23629 ; 2 - Address of variable in assignment
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ZX_CHANS equ 23631 ; 2 - Address of channel data
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ZX_CURCHL equ 23633 ; 2 - Address of current IO
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ZX_PROG equ 23635 ; 2 - Address of BASIC program
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ZX_CH_ADD equ 23645 ; 2 - Address of next char to be interpreted
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ZX_X_PTR equ 23647 ; 2 - Address of char after ? marker
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ZX_X_PTR_HI equ 23648 ; MSB of X_PTR
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ZX_FLAGS2 equ 23658 ; 1 - More flags
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ZX_OLDPPC equ 23662 ; 2 - where CONTINUE jumps
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ZX_FLAGX equ 23665
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ZX_E_LINE equ 23641 ; 2 - address of line being typed in
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ZX_RAMTOP equ 23730
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; Displacements
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D_ERR_NR equ 0
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D_FLAGS equ 1
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D_TV_FLAG equ 2
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D_CHBYTE equ 0x0B
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D_PPC_HI equ 0x0C
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D_CHREC equ 0x0D
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D_CHFLAG equ 0x18
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D_CHDRIV equ 0x19
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D_HDNUMB equ 0x29
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D_RECFLG equ 0x43
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D_RECNUM equ 0x44
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D_RECLEN equ 0x45
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D_FLAGX equ 0x37
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D_SUBPPC equ 0x0D
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