From 91c46816568ce76ff22b3c469ff1d624b96a535e Mon Sep 17 00:00:00 2001 From: Christopher Browne Date: Mon, 1 Feb 2016 18:50:19 -0500 Subject: [PATCH 1/6] More samples, some not entirely working yet. I am trying to mess around with MACRO(), but it is not there quite yet... --- keyboard/planck/keymaps/cbbrowne/keymap.c | 39 +++++++++++++++-------- 1 file changed, 26 insertions(+), 13 deletions(-) diff --git a/keyboard/planck/keymaps/cbbrowne/keymap.c b/keyboard/planck/keymaps/cbbrowne/keymap.c index bd09f65c87..97ef72407d 100644 --- a/keyboard/planck/keymaps/cbbrowne/keymap.c +++ b/keyboard/planck/keymaps/cbbrowne/keymap.c @@ -44,6 +44,15 @@ - What's the keystroke to get from X to console these days? - I do indeed want a sweet number pad! - A layer for doing console switching would not be a bad idea + - Random data generator + - A key that generates values in the range 0-9 at random + - A key that generates values in the range a-z at random + - A key that generates values in the range a-z,A-Z,0-9 at random + + - Figure out the MACRO example in https://github.com/tmk/tmk_keyboard/blob/master/tmk_core/doc/keymap.md + - section 2.3.2 + - where does the HELLO come from??? + - What are the types of the T() calls? */ enum layers { @@ -126,17 +135,21 @@ const uint16_t PROGMEM fn_actions[] = { const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) { // MACRODOWN only works in this function - switch(id) { - case 0: - if (record->event.pressed) { - register_code(KC_RSFT); - #ifdef BACKLIGHT_ENABLE - backlight_step(); - #endif - } else { - unregister_code(KC_RSFT); - } - break; - } - return MACRO_NONE; + switch(id) { + case 0: + if (record->event.pressed) { + register_code(KC_RSFT); +#ifdef BACKLIGHT_ENABLE + backlight_step(); +#endif + } else { + unregister_code(KC_RSFT); + } + case 2550: + return (record->event.pressed ? + MACRO( I(55), T(C), T(B), T(B), T(R), T(O), T(W), T(N), T(E)) : + MACRO_NONE ); + break; + } + return MACRO_NONE; }; From 1466f5a36e24f4b5925e306a10abbfdcde50dd04 Mon Sep 17 00:00:00 2001 From: Christopher Browne Date: Mon, 1 Feb 2016 19:13:23 -0500 Subject: [PATCH 2/6] Set up a macro that writes cbbrowne. So that is a nice example of how it works. Probably ought to write up some docs on this to improve it. --- keyboard/planck/keymaps/cbbrowne/keymap.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/keyboard/planck/keymaps/cbbrowne/keymap.c b/keyboard/planck/keymaps/cbbrowne/keymap.c index 97ef72407d..03bea940f0 100644 --- a/keyboard/planck/keymaps/cbbrowne/keymap.c +++ b/keyboard/planck/keymaps/cbbrowne/keymap.c @@ -105,7 +105,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { {KC_TRNS, DF(_KP), KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY} }, [_KP] = { /* Key Pad */ - {KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_KP_ENTER}, + {KC_ESC, M(1), KC_W, KC_E, KC_R, KC_T, KC_Y, KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_KP_ENTER}, {KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_KP_MINUS, KC_7, KC_8, KC_9, KC_KP_DOT}, {KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_KP_PLUS, KC_4, KC_5, KC_6, KC_0}, {BL_STEP, M(0), KC_LALT, KC_LGUI, KC_NO, KC_SPC, KC_SPC, DF(_QW), KC_1, KC_2, KC_3, KC_0} @@ -127,7 +127,6 @@ enum macro_id { M_USERNAME }; - const uint16_t PROGMEM fn_actions[] = { }; @@ -145,9 +144,10 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) } else { unregister_code(KC_RSFT); } - case 2550: + break; + case 1: return (record->event.pressed ? - MACRO( I(55), T(C), T(B), T(B), T(R), T(O), T(W), T(N), T(E)) : + MACRO( T(C), T(B), T(B), T(R), T(O), T(W), T(N), T(E)) : MACRO_NONE ); break; } From 674c62734dbe8250ee12f31f748a33b79906eea8 Mon Sep 17 00:00:00 2001 From: Christopher Browne Date: Wed, 3 Feb 2016 13:40:45 -0500 Subject: [PATCH 3/6] More experiments with mapping, notably adding in the random bits --- keyboard/planck/keymaps/cbbrowne/keymap.c | 108 ++++++++++++---------- 1 file changed, 60 insertions(+), 48 deletions(-) diff --git a/keyboard/planck/keymaps/cbbrowne/keymap.c b/keyboard/planck/keymaps/cbbrowne/keymap.c index 03bea940f0..ae7aeadebf 100644 --- a/keyboard/planck/keymaps/cbbrowne/keymap.c +++ b/keyboard/planck/keymaps/cbbrowne/keymap.c @@ -57,14 +57,17 @@ enum layers { _QW = 0, /* Qwerty mapping */ - _CM, /* Colemak */ - _DV, /* Dvorak */ - _WK, /* Workman */ _LW, /* Lower layer, where top line has symbols !@#$%^&*() */ _RS, /* Raised layer, where top line has digits 1234567890 */ _KP, /* Key pad */ }; +enum macro_id { + M_LED = 0, + M_USERNAME, + M_RANDDIGIT +}; + /* Note that Planck has dimensions 4 rows x 12 columns */ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { @@ -72,70 +75,41 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { {KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC}, {KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_ENT}, {KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_QUOT }, - {KC_TAB, M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC, KC_SPC, MO(_RS), KC_LEFT, KC_DOWN, KC_UP, KC_RGHT} -}, -[_CM] = { /* Colemak */ - {KC_ESC, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_BSPC}, - {KC_LCTL, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_ENT}, - {KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_QUOT }, - {KC_TAB, M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC, KC_SPC, MO(_RS), KC_LEFT, KC_DOWN, KC_UP, KC_RGHT} + {KC_TAB, M(M_LED), KC_LALT, KC_LGUI, MO(_LW), KC_SPC, KC_SPC, MO(_RS), KC_LEFT, KC_DOWN, KC_UP, KC_RGHT} }, -[_DV] = { /* Dvorak */ - {KC_ESC, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_BSPC}, - {KC_LCTL, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_SLSH}, - {KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_ENT }, - {KC_TAB, M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC, KC_SPC, MO(_RS), KC_LEFT, KC_DOWN, KC_UP, KC_RGHT} -}, -[_WK] = { /* Workman */ - {KC_ESC, KC_Q, KC_D, KC_R, KC_W, KC_B, KC_J, KC_F, KC_U, KC_P, KC_SCLN, KC_BSPC}, - {KC_LCTL, KC_A, KC_S, KC_H, KC_T, KC_G, KC_Y, KC_N, KC_E, KC_O, KC_I, KC_ENT}, - {KC_LSFT, KC_Z, KC_X, KC_M, KC_C, KC_V, KC_K, KC_L, KC_COMM, KC_DOT, KC_SLSH, KC_QUOT }, - {KC_TAB, M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC, KC_SPC, MO(_RS), KC_LEFT, KC_DOWN, KC_UP, KC_RGHT} -}, [_RS] = { /* RAISE */ {KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC}, {KC_TRNS, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS}, - {KC_TRNS, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, DF(_QW), DF(_CM), DF(_WK), RESET, KC_TRNS}, + {KC_TRNS, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, DF(_QW), DF(_KP), DF(_KP), RESET, KC_TRNS}, {KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY} }, [_LW] = { /* LOWER */ {KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC}, {KC_TRNS, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE}, - {KC_TRNS, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, DF(_QW), DF(_CM), DF(_WK), RESET, KC_TRNS}, + {KC_TRNS, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, DF(_QW), DF(_KP), DF(_KP), RESET, KC_TRNS}, {KC_TRNS, DF(_KP), KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY} }, [_KP] = { /* Key Pad */ - {KC_ESC, M(1), KC_W, KC_E, KC_R, KC_T, KC_Y, KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_KP_ENTER}, - {KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_KP_MINUS, KC_7, KC_8, KC_9, KC_KP_DOT}, + {KC_ESC, M(M_USERNAME), KC_W, KC_E, KC_R, KC_T, KC_Y, KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_KP_ENTER}, + {KC_LCTL, M(M_RANDDIGIT), KC_S, KC_D, KC_F, KC_G, KC_H, KC_KP_MINUS, KC_7, KC_8, KC_9, KC_KP_DOT}, {KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_KP_PLUS, KC_4, KC_5, KC_6, KC_0}, - {BL_STEP, M(0), KC_LALT, KC_LGUI, KC_NO, KC_SPC, KC_SPC, DF(_QW), KC_1, KC_2, KC_3, KC_0} + {BL_STEP, M(M_LED), KC_LALT, KC_LGUI, KC_NO, KC_SPC, KC_SPC, DF(_QW), KC_1, KC_2, KC_3, KC_0} } }; -/* I'm planning to use this to set up some macros, including one to - expand into "cbbrowne", more to prove it can be done than anything - else. -*/ - -enum macro_id { - M_P0, - M_P1, - M_P2, - M_P3, - M_P4, - M_P5, - M_USERNAME -}; - const uint16_t PROGMEM fn_actions[] = { - }; +static uint16_t random_value = 157; +#define randadd 53 +#define randmul 181 +#define randmod 167 + const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) { // MACRODOWN only works in this function switch(id) { - case 0: + case M_LED: if (record->event.pressed) { register_code(KC_RSFT); #ifdef BACKLIGHT_ENABLE @@ -145,10 +119,48 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) unregister_code(KC_RSFT); } break; - case 1: - return (record->event.pressed ? - MACRO( T(C), T(B), T(B), T(R), T(O), T(W), T(N), T(E)) : - MACRO_NONE ); + case M_USERNAME: + if (record->event.pressed) { + return MACRO( I(1), T(C), T(B), T(B), T(R), T(O), T(W), T(N), T(E)); + } else { + return MACRO_NONE ; + } + break; + case M_RANDDIGIT: + random_value = ((random_value + randadd) * randmul) % randmod; + if (record->event.pressed) + switch(random_value % 10) { + case 0: + return MACRO(T(0)); + break; + case 1: + return MACRO(T(1)); + break; + case 2: + return MACRO(T(2)); + break; + case 3: + return MACRO(T(3)); + break; + case 4: + return MACRO(T(4)); + break; + case 5: + return MACRO(T(5)); + break; + case 6: + return MACRO(T(6)); + break; + case 7: + return MACRO(T(7)); + break; + case 8: + return MACRO(T(8)); + break; + case 9: + return MACRO(T(9)); + break; + } break; } return MACRO_NONE; From 7919839b1a81d3c8b1bef27269db9d3a3a25bc98 Mon Sep 17 00:00:00 2001 From: Christopher Browne Date: Wed, 3 Feb 2016 16:46:24 -0500 Subject: [PATCH 4/6] Random characters now working AOK --- keyboard/planck/keymaps/cbbrowne/keymap.c | 171 ++++++++++++++++++++-- 1 file changed, 157 insertions(+), 14 deletions(-) diff --git a/keyboard/planck/keymaps/cbbrowne/keymap.c b/keyboard/planck/keymaps/cbbrowne/keymap.c index ae7aeadebf..96eab1d1b2 100644 --- a/keyboard/planck/keymaps/cbbrowne/keymap.c +++ b/keyboard/planck/keymaps/cbbrowne/keymap.c @@ -35,6 +35,22 @@ Workman just for fun. They're useless to me, though. */ + +/* Some interesting things implemented + + - There is a macro that writes out "cbbrowne" just because I could + - There is a (somewhat cruddy) linear congruential random number + generator. + - I would like to be seeding it with clock info to make it look + more random + - There are two macros that use the random number generators + - one, M_RANDDIGIT, generates a random digit based on state + of the random number generator + - the other, M_RANDLETTER, generates a random letter based on state + of the random number generator + - in both +*/ + /* Other things to do... - Need to think about what zsh and readline actions I use lots @@ -65,7 +81,8 @@ enum layers { enum macro_id { M_LED = 0, M_USERNAME, - M_RANDDIGIT + M_RANDDIGIT, + M_RANDLETTER }; /* Note that Planck has dimensions 4 rows x 12 columns */ @@ -90,9 +107,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { {KC_TRNS, DF(_KP), KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY} }, [_KP] = { /* Key Pad */ - {KC_ESC, M(M_USERNAME), KC_W, KC_E, KC_R, KC_T, KC_Y, KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_KP_ENTER}, - {KC_LCTL, M(M_RANDDIGIT), KC_S, KC_D, KC_F, KC_G, KC_H, KC_KP_MINUS, KC_7, KC_8, KC_9, KC_KP_DOT}, - {KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_KP_PLUS, KC_4, KC_5, KC_6, KC_0}, + {KC_ESC, M(M_USERNAME), KC_W, KC_E, KC_R, KC_T, KC_Y, KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_BSPC}, + {KC_LCTL, M(M_RANDDIGIT), KC_S, KC_D, KC_F, KC_G, KC_H, KC_KP_MINUS, KC_7, KC_8, KC_9, KC_ENT}, + {KC_LSFT, M(M_RANDLETTER), KC_X, KC_C, KC_V, KC_B, KC_N, KC_KP_PLUS, KC_4, KC_5, KC_6, KC_DOT}, {BL_STEP, M(M_LED), KC_LALT, KC_LGUI, KC_NO, KC_SPC, KC_SPC, DF(_QW), KC_1, KC_2, KC_3, KC_0} } }; @@ -100,6 +117,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { const uint16_t PROGMEM fn_actions[] = { }; +/* This bit of logic seeds a wee linear congruential random number generator */ + static uint16_t random_value = 157; #define randadd 53 #define randmul 181 @@ -127,38 +146,162 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) } break; case M_RANDDIGIT: + /* Generate, based on random number generator, a keystroke for + a numeric digit chosen at random */ random_value = ((random_value + randadd) * randmul) % randmod; if (record->event.pressed) switch(random_value % 10) { case 0: - return MACRO(T(0)); + register_code (KC_0); + unregister_code (KC_0); break; case 1: - return MACRO(T(1)); + register_code (KC_1); + unregister_code (KC_1); break; case 2: - return MACRO(T(2)); + register_code (KC_2); + unregister_code (KC_2); break; case 3: - return MACRO(T(3)); + register_code (KC_3); + unregister_code (KC_3); break; case 4: - return MACRO(T(4)); + register_code (KC_4); + unregister_code (KC_4); break; case 5: - return MACRO(T(5)); + register_code (KC_5); + unregister_code (KC_5); break; case 6: - return MACRO(T(6)); + register_code (KC_6); + unregister_code (KC_6); break; case 7: - return MACRO(T(7)); + register_code (KC_7); + unregister_code (KC_7); break; case 8: - return MACRO(T(8)); + register_code (KC_8); + unregister_code (KC_8); break; case 9: - return MACRO(T(9)); + register_code (KC_9); + unregister_code (KC_9); + break; + } + break; + case M_RANDLETTER: + /* Generate, based on random number generator, a keystroke for + a letter chosen at random */ + random_value = ((random_value + randadd) * randmul) % randmod; + if (record->event.pressed) + switch(random_value % 26) { + case 0: + register_code(KC_A); + unregister_code(KC_A); + break; + case 1: + register_code(KC_B); + unregister_code(KC_B); + break; + case 2: + register_code(KC_C); + unregister_code(KC_C); + break; + case 3: + register_code(KC_D); + unregister_code(KC_D); + break; + case 4: + register_code(KC_E); + unregister_code(KC_E); + break; + case 5: + register_code(KC_F); + unregister_code(KC_F); + break; + case 6: + register_code(KC_G); + unregister_code(KC_G); + break; + case 7: + register_code(KC_H); + unregister_code(KC_H); + break; + case 8: + register_code(KC_I); + unregister_code(KC_I); + break; + case 9: + register_code(KC_J); + unregister_code(KC_J); + break; + case 10: + register_code(KC_K); + unregister_code(KC_K); + break; + case 11: + register_code(KC_L); + unregister_code(KC_L); + break; + case 12: + register_code(KC_M); + unregister_code(KC_M); + break; + case 13: + register_code(KC_N); + unregister_code(KC_N); + break; + case 14: + register_code(KC_O); + unregister_code(KC_O); + break; + case 15: + register_code(KC_P); + unregister_code(KC_P); + break; + case 16: + register_code(KC_Q); + unregister_code(KC_Q); + break; + case 17: + register_code(KC_R); + unregister_code(KC_R); + break; + case 18: + register_code(KC_S); + unregister_code(KC_S); + break; + case 19: + register_code(KC_T); + unregister_code(KC_T); + break; + case 20: + register_code(KC_U); + unregister_code(KC_U); + break; + case 21: + register_code(KC_V); + unregister_code(KC_V); + break; + case 22: + register_code(KC_W); + unregister_code(KC_W); + break; + case 23: + register_code(KC_X); + unregister_code(KC_X); + break; + case 24: + register_code(KC_Y); + unregister_code(KC_Y); + break; + case 25: + register_code(KC_Z); + unregister_code(KC_Z); break; } break; From 0d44544491b8a4512fcbb0379a31f062c75af761 Mon Sep 17 00:00:00 2001 From: Christopher Browne Date: Wed, 3 Feb 2016 16:47:54 -0500 Subject: [PATCH 5/6] Comment things more --- keyboard/planck/keymaps/cbbrowne/keymap.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/keyboard/planck/keymaps/cbbrowne/keymap.c b/keyboard/planck/keymaps/cbbrowne/keymap.c index 96eab1d1b2..cec913a12c 100644 --- a/keyboard/planck/keymaps/cbbrowne/keymap.c +++ b/keyboard/planck/keymaps/cbbrowne/keymap.c @@ -48,7 +48,8 @@ of the random number generator - the other, M_RANDLETTER, generates a random letter based on state of the random number generator - - in both + - in both, note the use of register_code()/unregister_code() + to indicate the desired key */ /* Other things to do... From 73f14db8ad6f06f080ec2a5c55381952e0d7a8ab Mon Sep 17 00:00:00 2001 From: Christopher Browne Date: Wed, 3 Feb 2016 16:54:38 -0500 Subject: [PATCH 6/6] Remove obsolete comments --- keyboard/planck/keymaps/cbbrowne/keymap.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/keyboard/planck/keymaps/cbbrowne/keymap.c b/keyboard/planck/keymaps/cbbrowne/keymap.c index cec913a12c..45a297cda3 100644 --- a/keyboard/planck/keymaps/cbbrowne/keymap.c +++ b/keyboard/planck/keymaps/cbbrowne/keymap.c @@ -61,15 +61,6 @@ - What's the keystroke to get from X to console these days? - I do indeed want a sweet number pad! - A layer for doing console switching would not be a bad idea - - Random data generator - - A key that generates values in the range 0-9 at random - - A key that generates values in the range a-z at random - - A key that generates values in the range a-z,A-Z,0-9 at random - - - Figure out the MACRO example in https://github.com/tmk/tmk_keyboard/blob/master/tmk_core/doc/keymap.md - - section 2.3.2 - - where does the HELLO come from??? - - What are the types of the T() calls? */ enum layers {