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adapted to Kick Assembler, some documentation update

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FeralChild64 committed 2019-09-07 12:35:21 +02:00
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c64/basic/,aliases.s
+116 -114
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@@ -1,126 +1,128 @@
; Names of ZP and low memory locations
; (Only those for now that we feel the need to implement initially)
; (https://www.c64-wiki.com/wiki/Zeropage)
// Names of ZP and low memory locations
// (Only those for now that we feel the need to implement initially)
// (https://www.c64-wiki.com/wiki/Zeropage)
.alias tokenise_work1 $7
.alias tokenise_work2 $8
.alias tokenise_work3 $B
.alias tokenise_work4 $F
.alias basic_line_number $14
.alias temp_string_ptr $35
.alias load_or_verify_or_tokenise_work5 $C
.alias basic_work22 $22
.alias basic_work23 $23
.alias basic_work24 $24
.alias basic_work25 $25
// XXX get rid of this file, use ,aliases_ram_lowmem.s instead
;; The various pointers that separate memory regions for BASIC storage
;; We have multiple names for the ones that mark the boundary of regions.
.alias basic_start_of_text_ptr $2b
.alias basic_end_of_text_ptr $2d
.alias basic_start_of_vars_ptr $2d
.alias basic_end_of_vars_ptr $2f
.alias basic_start_of_arrays_ptr $2f
.alias basic_end_of_arrays_ptr $31
.alias basic_start_of_free_space_ptr $31
.alias basic_start_of_strings_ptr $33
.alias basic_top_of_memory_ptr $37
.alias basic_current_line_number $39
.alias basic_previous_line_number $3b
.alias basic_current_line_ptr $3d
.label tokenise_work1 = $7
.label tokenise_work2 = $8
.label tokenise_work3 = $B
.label tokenise_work4 = $F
.label basic_line_number = $14
.label temp_string_ptr = $35
.label load_or_verify_or_tokenise_work5 = $C
.label basic_work22 = $22
.label basic_work23 = $23
.label basic_work24 = $24
.label basic_work25 = $25
;; Note that the statement point is in the CHRGET/CHRGOT routine
;; in ZP RAM. (Compute's Mapping the 64, p25)
.alias basic_current_statement_ptr $7a
// The various pointers that separate memory regions for BASIC storage
// We have multiple names for the ones that mark the boundary of regions.
.label basic_start_of_text_ptr = $2b
.label basic_end_of_text_ptr = $2d
.label basic_start_of_vars_ptr = $2d
.label basic_end_of_vars_ptr = $2f
.label basic_start_of_arrays_ptr = $2f
.label basic_end_of_arrays_ptr = $31
.label basic_start_of_free_space_ptr = $31
.label basic_start_of_strings_ptr = $33
.label basic_top_of_memory_ptr = $37
.label basic_current_line_number = $39
.label basic_previous_line_number = $3b
.label basic_current_line_ptr = $3d
// Note that the statement point is in the CHRGET/CHRGOT routine
// in ZP RAM. (Compute's Mapping the 64, p25)
.label basic_current_statement_ptr = $7a
.alias basic_numeric_work_area $57 ; $57 - $60 inclusive = 10 bytes
.label basic_numeric_work_area = $57 // $57 - $60 inclusive = 10 bytes
;; Floating point accumulator 1 $61 - $68
.alias basic_fac1_exponent $61
.alias basic_fac1_mantissa $62 ; $62 - $65
.alias basic_fac1_sign $66
.alias basic_fac1_overflow $68
.alias basic_fac1_mantissa_lob $70
// Floating point accumulator 1 $61 - $68
.label basic_fac1_exponent = $61
.label basic_fac1_mantissa = $62 // $62 - $65
.label basic_fac1_sign = $66
.label basic_fac1_overflow = $68
.label basic_fac1_mantissa_lob = $70
.alias basic_fac2_exponent $69
.alias basic_fac2_mantissa $6A ; $6A - $6D
.alias basic_fac2_sign $6E
.label basic_fac2_exponent = $69
.label basic_fac2_mantissa = $6A // $6A - $6D
.label basic_fac2_sign = $6E
;; We also re-use FAC2 for memory move pointers, since
;; we can't be doing calculations while moving memory
.alias memmove_src $69
.alias memmove_dst $6b
.alias memmove_size $6d
// We also re-use FAC2 for memory move pointers, since
// we can't be doing calculations while moving memory
.label memmove_src = $69
.label memmove_dst = $6b
.label memmove_size = $6d
.alias current_file_num $98
.alias cassette_buffer_bytes_used $A6
.alias load_or_scroll_temp_pointer $AC
;; We also use the following for temp colour pointer when scrolling
.alias load_save_verify_end_address $AE
.label current_file_num = $98
.label cassette_buffer_bytes_used = $A6
.label load_or_scroll_temp_pointer = $AC
// We also use the following for temp colour pointer when scrolling
.label load_save_verify_end_address = $AE
.alias cassette_buffer_ptr $B2
.alias current_logical_filenum $B8
.alias current_secondary_address $B9
.alias current_device_number $BA
.alias current_filename_ptr $BB
.alias load_save_start_ptr $C1
.alias load_save_end_ptr $C3
.alias last_key_matrix_position $C5
.alias keys_in_key_buffer $C6
.alias reverse_video_flag $C7
.alias end_of_input_line $C8
.alias start_of_keyboard_input $C9
.alias current_key_index_entry $CB
.alias cursor_blink_disable $CC
.alias cursor_blink_countdown $CD
.alias cursor_saved_character $CE
.alias cursor_is_visible $CF
.alias keyboard_input_ready $D0
.alias current_screen_line_ptr $D1
.alias current_screen_x $D3
.alias quote_mode_flag $D4
.alias logical_line_length $D5
.alias current_screen_y $D6
.alias last_printed_character_ascii $D7
.alias insert_mode $D8
; Bits 0 -3 = bits 8-11 of screen line address
; Bit 7 = line spans multiple physical lines
.alias screen_line_link_table $D9
.alias current_screen_line_colour_ptr $F3
.alias keyboard_decoding_table_ptr $F5
.alias rs232_rx_buffer_ptr $F7
.alias rs232_tx_buffer_ptr $F9
.label cassette_buffer_ptr = $B2
.label current_logical_filenum = $B8
.label current_secondary_address = $B9
.label current_device_number = $BA
.label current_filename_ptr = $BB
.label load_save_start_ptr = $C1
.label load_save_end_ptr = $C3
.label last_key_matrix_position = $C5
.label keys_in_key_buffer = $C6
.label reverse_video_flag = $C7
.label end_of_input_line = $C8
.label start_of_keyboard_input = $C9
.label current_key_index_entry = $CB
.label cursor_blink_disable = $CC
.label cursor_blink_countdown = $CD
.label cursor_saved_character = $CE
.label cursor_is_visible = $CF
.label keyboard_input_ready = $D0
.label current_screen_line_ptr = $D1
.label current_screen_x = $D3
.label quote_mode_flag = $D4
.label logical_line_length = $D5
.label current_screen_y = $D6
.label last_printed_character_ascii = $D7
.label insert_mode = $D8
// Bits 0 -3 = bits 8-11 of screen line address
// Bit 7 = line spans multiple physical lines
.label screen_line_link_table = $D9
.label current_screen_line_colour_ptr = $F3
.label keyboard_decoding_table_ptr = $F5
.label rs232_rx_buffer_ptr = $F7
.label rs232_tx_buffer_ptr = $F9
.alias basic_input_buffer BUF
; "Compute's Mapping the 64" book
.alias keyboard_buffer $0277
.alias text_colour $0286 ; p55
.alias colour_under_cursor $0287 ; p56
.alias key_buffer_size $0289 ; p57
.label basic_input_buffer = BUF
;; 0 = cursor keys, insert, delete and space repeat, but nothing else
;; 128 = all keys repeat
;; 64 = no keys repeat
.alias key_repeat_flags $028A ; p58
;; https://www.c64-wiki.com/wiki/Page_2
.alias key_repeat_counter $028B
.alias key_first_repeat_delay $028C
;; bit 0 = shift, 1 = Vendor Key, 2 = Control
.alias key_bucky_state $028D
.alias key_last_bucky_state $028E
.alias keyboard_decoding_ptr $028F
.alias enable_case_switch $0291
.alias screen_scroll_disable $0292
// "Compute's Mapping the 64" book
.label keyboard_buffer = $0277
.label text_colour = $0286 // p55
.label colour_under_cursor = $0287 // p56
.label key_buffer_size = $0289 // p57
;; BASIC uses some extra bytes for memory access under ROMs located at $2A7 onwards
;; IRQs are disabled when doing such accesses, and a default NMI handler only increments
;; a counter, so that if an NMI occurs, it doesn't crash the machine, but can be captured.
.alias missed_nmi_flag $2A7
.alias tiny_nmi_handler $2A8
.alias shift_mem_up tiny_nmi_handler+shift_mem_up_routine-tiny_nmi_handler_routine
.alias shift_mem_down tiny_nmi_handler+shift_mem_down_routine-tiny_nmi_handler_routine
.alias peek_under_roms tiny_nmi_handler+peek_under_roms_routine-tiny_nmi_handler_routine
.alias poke_under_roms tiny_nmi_handler+poke_under_roms_routine-tiny_nmi_handler_routine
.alias memmap_allram tiny_nmi_handler+memmap_allram_routine-tiny_nmi_handler_routine
.alias memmap_normal tiny_nmi_handler+memmap_normal_routine-tiny_nmi_handler_routine
// 0 = cursor keys, insert, delete and space repeat, but nothing else
// 128 = all keys repeat
// 64 = no keys repeat
.label key_repeat_flags = $028A // p58
// https://www.c64-wiki.com/wiki/Page_2
.label key_repeat_counter = $028B
.label key_first_repeat_delay = $028C
// bit 0 = shift, 1 = Vendor Key, 2 = Control
.label key_bucky_state = $028D
.label key_last_bucky_state = $028E
.label keyboard_decoding_ptr = $028F
.label enable_case_switch = $0291
.label screen_scroll_disable = $0292
// BASIC uses some extra bytes for memory access under ROMs located at $2A7 onwards
// IRQs are disabled when doing such accesses, and a default NMI handler only increments
// a counter, so that if an NMI occurs, it doesn't crash the machine, but can be captured.
.label missed_nmi_flag = $2A7
.label tiny_nmi_handler = $2A8
.label shift_mem_up = tiny_nmi_handler+shift_mem_up_routine-tiny_nmi_handler_routine
.label shift_mem_down = tiny_nmi_handler+shift_mem_down_routine-tiny_nmi_handler_routine
.label peek_under_roms = tiny_nmi_handler+peek_under_roms_routine-tiny_nmi_handler_routine
.label poke_under_roms = tiny_nmi_handler+poke_under_roms_routine-tiny_nmi_handler_routine
.label memmap_allram = tiny_nmi_handler+memmap_allram_routine-tiny_nmi_handler_routine
.label memmap_normal = tiny_nmi_handler+memmap_normal_routine-tiny_nmi_handler_routine