diff --git a/libsrc/lynx/ctype.s b/libsrc/lynx/ctype.s new file mode 100644 index 000000000..42de7592b --- /dev/null +++ b/libsrc/lynx/ctype.s @@ -0,0 +1,172 @@ +; +; Ullrich von Bassewitz, 02.06.1998 +; +; Character specification table. +; + +; The tables are readonly, put them into the rodata segment + +.rodata + +; The following 256 byte wide table specifies attributes for the isxxx type +; of functions. Doing it by a table means some overhead in space, but it +; has major advantages: +; +; * It is fast. If it were'nt for the slow parameter passing of cc65, one +; could even define macros for the isxxx functions (this is usually +; done on other platforms). +; +; * It is highly portable. The only unportable part is the table itself, +; all real code goes into the common library. +; +; * We save some code in the isxxx functions. +; +; +; Bit assignments: +; +; 0 - Lower case char +; 1 - Upper case char +; 2 - Numeric digit +; 3 - Hex digit (both, lower and upper) +; 4 - Control character +; 5 - The space character itself +; 6 - Other whitespace (that is: '\f', '\n', '\r', '\t' and '\v') +; 7 - Space or tab character + + .export __ctype + +__ctype: + +.repeat 2 ; 2 times for normal and inverted + + .byte $10 ; 0/00 ___ctrl_@___ + .byte $10 ; 1/01 ___ctrl_A___ + .byte $10 ; 2/02 ___ctrl_B___ + .byte $10 ; 3/03 ___ctrl_C___ + .byte $10 ; 4/04 ___ctrl_D___ + .byte $10 ; 5/05 ___ctrl_E___ + .byte $10 ; 6/06 ___ctrl_F___ + .byte $10 ; 7/07 ___ctrl_G___ + .byte $10 ; 8/08 ___ctrl_H___ + .byte $D0 ; 9/09 ___ctrl_I___ + .byte $50 ; 10/0a ___ctrl_J___ + .byte $50 ; 11/0b ___ctrl_K___ + .byte $50 ; 12/0c ___ctrl_L___ + .byte $50 ; 13/0d ___ctrl_M___ + .byte $10 ; 14/0e ___ctrl_N___ + .byte $10 ; 15/0f ___ctrl_O___ + .byte $10 ; 16/10 ___ctrl_P___ + .byte $10 ; 17/11 ___ctrl_Q___ + .byte $10 ; 18/12 ___ctrl_R___ + .byte $10 ; 19/13 ___ctrl_S___ + .byte $10 ; 20/14 ___ctrl_T___ + .byte $10 ; 21/15 ___ctrl_U___ + .byte $10 ; 22/16 ___ctrl_V___ + .byte $10 ; 23/17 ___ctrl_W___ + .byte $10 ; 24/18 ___ctrl_X___ + .byte $10 ; 25/19 ___ctrl_Y___ + .byte $10 ; 26/1a ___ctrl_Z___ + .byte $10 ; 27/1b ___ctrl_[___ + .byte $10 ; 28/1c ___ctrl_\___ + .byte $10 ; 29/1d ___ctrl_]___ + .byte $10 ; 30/1e ___ctrl_^___ + .byte $10 ; 31/1f ___ctrl_____ + .byte $A0 ; 32/20 ___SPACE___ + .byte $00 ; 33/21 _____!_____ + .byte $00 ; 34/22 _____"_____ + .byte $00 ; 35/23 _____#_____ + .byte $00 ; 36/24 _____$_____ + .byte $00 ; 37/25 _____%_____ + .byte $00 ; 38/26 _____&_____ + .byte $00 ; 39/27 _____'_____ + .byte $00 ; 40/28 _____(_____ + .byte $00 ; 41/29 _____)_____ + .byte $00 ; 42/2a _____*_____ + .byte $00 ; 43/2b _____+_____ + .byte $00 ; 44/2c _____,_____ + .byte $00 ; 45/2d _____-_____ + .byte $00 ; 46/2e _____._____ + .byte $00 ; 47/2f _____/_____ + .byte $0C ; 48/30 _____0_____ + .byte $0C ; 49/31 _____1_____ + .byte $0C ; 50/32 _____2_____ + .byte $0C ; 51/33 _____3_____ + .byte $0C ; 52/34 _____4_____ + .byte $0C ; 53/35 _____5_____ + .byte $0C ; 54/36 _____6_____ + .byte $0C ; 55/37 _____7_____ + .byte $0C ; 56/38 _____8_____ + .byte $0C ; 57/39 _____9_____ + .byte $00 ; 58/3a _____:_____ + .byte $00 ; 59/3b _____;_____ + .byte $00 ; 60/3c _____<_____ + .byte $00 ; 61/3d _____=_____ + .byte $00 ; 62/3e _____>_____ + .byte $00 ; 63/3f _____?_____ + + .byte $00 ; 64/40 _____@_____ + .byte $0A ; 65/41 _____A_____ + .byte $0A ; 66/42 _____B_____ + .byte $0A ; 67/43 _____C_____ + .byte $0A ; 68/44 _____D_____ + .byte $0A ; 69/45 _____E_____ + .byte $0A ; 70/46 _____F_____ + .byte $02 ; 71/47 _____G_____ + .byte $02 ; 72/48 _____H_____ + .byte $02 ; 73/49 _____I_____ + .byte $02 ; 74/4a _____J_____ + .byte $02 ; 75/4b _____K_____ + .byte $02 ; 76/4c _____L_____ + .byte $02 ; 77/4d _____M_____ + .byte $02 ; 78/4e _____N_____ + .byte $02 ; 79/4f _____O_____ + .byte $02 ; 80/50 _____P_____ + .byte $02 ; 81/51 _____Q_____ + .byte $02 ; 82/52 _____R_____ + .byte $02 ; 83/53 _____S_____ + .byte $02 ; 84/54 _____T_____ + .byte $02 ; 85/55 _____U_____ + .byte $02 ; 86/56 _____V_____ + .byte $02 ; 87/57 _____W_____ + .byte $02 ; 88/58 _____X_____ + .byte $02 ; 89/59 _____Y_____ + .byte $02 ; 90/5a _____Z_____ + .byte $00 ; 91/5b _____[_____ + .byte $00 ; 92/5c _____\_____ + .byte $00 ; 93/5d _____]_____ + .byte $00 ; 94/5e _____^_____ + .byte $00 ; 95/5f _UNDERLINE_ + .byte $00 ; 96/60 ___grave___ + .byte $09 ; 97/61 _____a_____ + .byte $09 ; 98/62 _____b_____ + .byte $09 ; 99/63 _____c_____ + .byte $09 ; 100/64 _____d_____ + .byte $09 ; 101/65 _____e_____ + .byte $09 ; 102/66 _____f_____ + .byte $01 ; 103/67 _____g_____ + .byte $01 ; 104/68 _____h_____ + .byte $01 ; 105/69 _____i_____ + .byte $01 ; 106/6a _____j_____ + .byte $01 ; 107/6b _____k_____ + .byte $01 ; 108/6c _____l_____ + .byte $01 ; 109/6d _____m_____ + .byte $01 ; 110/6e _____n_____ + .byte $01 ; 111/6f _____o_____ + .byte $01 ; 112/70 _____p_____ + .byte $01 ; 113/71 _____q_____ + .byte $01 ; 114/72 _____r_____ + .byte $01 ; 115/73 _____s_____ + .byte $01 ; 116/74 _____t_____ + .byte $01 ; 117/75 _____u_____ + .byte $01 ; 118/76 _____v_____ + .byte $01 ; 119/77 _____w_____ + .byte $01 ; 120/78 _____x_____ + .byte $01 ; 121/79 _____y_____ + .byte $01 ; 122/7a _____z_____ + .byte $00 ; 123/7b _____{_____ + .byte $00 ; 124/7c _____|_____ + .byte $00 ; 125/7d _____}_____ + .byte $00 ; 126/7e _____~_____ + .byte $40 ; 127/7f ____DEL____ + +.endrepeat