--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/code_part1/OSTC_code_asm_part1/shared_definitions.h	Mon Nov 07 08:39:21 2011 +0100
@@ -0,0 +1,184 @@
+#ifdef xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+;
+;    shared_definitions.h
+;
+;    Declare variables used both in C and ASM code
+;
+;    This program is free software: you can redistribute it and/or modify
+;    it under the terms of the GNU General Public License as published by
+;    the Free Software Foundation, either version 3 of the License, or
+;    (at your option) any later version.
+;
+;    This program is distributed in the hope that it will be useful,
+;    but WITHOUT ANY WARRANTY; without even the implied warranty of
+;    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;    GNU General Public License for more details.
+;
+;    You should have received a copy of the GNU General Public License
+;    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+;
+;    Copyright (c) 2010, JD Gascuel.
+;=============================================================================
+; RATIONAL
+;
+; We must enforce good data passing between the C and the ASM parts of code.
+; The previous design used two independant definitions of each variable,
+; one in C, one in ASM. If they did not match, no error was generated, and
+; anything can happend at runtime...
+;
+; The new design use LINKING to ensure the variables defined in C are at the
+; same address when used in ASM code. And it uses a unique declaration file
+; (with suitable macros) to make sure they have the same size in both language.
+;
+; HISTORY
+;  2011-01-20: [jDG] Creation.
+;
+; NOTE
+;
+; This file have to obey both ASM and C syntax. The only common directives
+; are #if/#ifdef/#endif and the #define, so they are eavily used to do the
+; trick.
+;
+; BUGS
+;=============================================================================
+#endif
+
+#ifdef __18CXX
+    //------------------------------------------------------------------------
+    // C-style declarations:
+#   ifndef TEST_MAIN
+#       define VAR_UCHAR(n)      extern unsigned  char n
+#       define TAB_UCHAR(n,size) extern unsigned  char n[size]
+#       define VAR_UINT(n)       extern unsigned short n
+#       define TAB_UINT(n,size)  extern unsigned short n[size]
+#   else
+#       define VAR_UCHAR(n)      unsigned  char n
+#       define TAB_UCHAR(n,size) unsigned  char n[size]
+#       define VAR_UINT(n)       unsigned short n
+#       define TAB_UINT(n,size)  unsigned short n[size]
+#   endif
+#else
+    ;-------------------------------------------------------------------------
+    ; ASM-style declarations:
+#define VAR_UCHAR(n)       n    res     1
+#define TAB_UCHAR(n,size)  n    res     size
+#define VAR_UINT(n)        n    res     2
+#define TAB_UINT(n,size)   n    res     2*size
+#endif
+
+#ifdef __18CXX
+    //---- BANK 2 DATA -------------------------------------------------------
+    // Gather all data C-code --> ASM-code
+#   pragma udata overlay bank2=0x200
+#else
+bank2   udata_ovr  0x200
+#endif
+
+#ifdef xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+    Define model dimensions.
+    NUM_COMP  is the number of compartiments in the Bühlmann ZH-L16 model, ie 16.
+    NUM_STOPS is the maximum number of stops computed by decoplanning. 
+              Note that the deapest stop is roughly limited to 3m * NUM_STOPS
+                   (this is assuming all stops up to the surface are used).
+              Note also that if the table overflow, extra stops are ignored,
+                   and not reported in TTS summing.
+    NUM_GAS   is the number of (potentially) active gas considered during
+              ascent simulation.
+#endif
+#define NUM_COMP    0x10
+#define NUM_STOPS   0x20
+#define NUM_GAS     5
+
+VAR_UINT  (int_O_gtissue_limit);
+VAR_UINT  (int_O_gtissue_press);
+VAR_UINT  (int_O_desaturation_time);       // 
+VAR_UINT  (int_O_ascenttime);              // TTS (in minutes)
+VAR_UINT  (int_O_extra_ascenttime);        // TTS for @+5min variant (in minutes)
+
+VAR_UCHAR (char_O_nullzeit);               // 
+VAR_UCHAR (char_O_deco_status);            // Deko state-machine state.
+VAR_UCHAR (char_O_deco_last_stop);         // Depth reached during deko planning.
+VAR_UCHAR (char_O_gradient_factor);        // 
+VAR_UCHAR (char_O_gtissue_no);             // 
+VAR_UCHAR (char_O_diluent);                // new in v.101
+VAR_UCHAR (char_O_flush_ppO2);             // 2011-05-01: ppO2 from diluant (CCR mode).
+VAR_UCHAR (char_O_EAD);                    // 2011-05-01: Added EAD/END in deco model.
+VAR_UCHAR (char_O_END);                    // 2011-05-01: Added EAD/END in deco model.
+VAR_UCHAR (char_O_CNS_fraction);           // new in v.101
+VAR_UCHAR (char_O_relative_gradient_GF);   // new in v.102
+
+VAR_UCHAR (char_O_first_deco_depth);        // Depth of first stop.
+VAR_UCHAR (char_O_first_deco_time) ;        // Duration of first stop.
+TAB_UCHAR (char_O_deco_depth, NUM_STOPS);   // Fusionned decompression table:
+TAB_UCHAR (char_O_deco_time,  NUM_STOPS);   // Both ZH-L16 and L16-GF models.
+
+TAB_UCHAR (char_O_tissue_N2_saturation, NUM_COMP); // Nitrogen compartiment desaturation time, in min.
+TAB_UCHAR (char_O_tissue_He_saturation, NUM_COMP); // Helium compartiment desaturation time, in min.
+
+VAR_UINT  (int_O_DBS_bitfield);             // NOTE: 9 bytes dumped to divelog by store_dive_decodebug
+VAR_UINT  (int_O_DBS2_bitfield);
+VAR_UINT  (int_O_DBG_pre_bitfield);
+VAR_UINT  (int_O_DBG_post_bitfield);
+VAR_UCHAR (char_O_NDL_at_20mtr);
+
+TAB_UINT (int_O_gas_volumes, 5);            // Volumes evaluation for each gas tank, in 0.1 liters.
+
+TAB_UCHAR (char_O_hash, 16);
+
+#ifdef __18CXX
+    //---- BANK 3 DATA -------------------------------------------------------
+    // Gather all data ASM-code --> C-code
+#   pragma udata overlay bank3=0x300
+#else
+    ; In ASM, put the same bank, in overlay mode, at the same address
+bank3   udata_ovr  0x300
+#endif
+
+VAR_UCHAR (char_I_step_is_1min);           // Use 1min integration for tissue and CNS.
+
+VAR_UINT  (int_I_pres_respiration);        // 
+VAR_UINT  (int_I_pres_surface);            // 
+VAR_UINT  (int_I_temp);                    // new in v101
+VAR_UINT  (int_I_divemins);                // Dive time (minutes)
+VAR_UCHAR (char_I_temp);                   // new in v101
+VAR_UCHAR (char_I_actual_ppO2);            // 
+VAR_UCHAR (char_I_first_gas);              // Gas used at start of dive (bottom mix)
+VAR_UCHAR (char_I_current_gas);            // Current gas breathed (1..6).
+VAR_UCHAR (char_I_N2_ratio);               //
+VAR_UCHAR (char_I_He_ratio);               //
+VAR_UCHAR (char_I_saturation_multiplier);  // for conservatism/safety values 1.0  no conservatism to 1.5  50% faster saturation
+VAR_UCHAR (char_I_desaturation_multiplier);// for conservatism/safety values 0.66  50% slower desaturation to 1.0  no conservatism// consveratism used in calc_tissue , calc_tissue_step_1_min  and sim_tissue_1min 
+VAR_UCHAR (char_I_GF_High_percentage);     // new in v.102
+VAR_UCHAR (char_I_GF_Low_percentage);      // new in v.102
+VAR_UCHAR (char_I_deco_distance);          // 
+VAR_UCHAR (char_I_const_ppO2);             // new in v.101
+VAR_UCHAR (char_I_depth_last_deco);        // new in v.101 unit: [m]
+VAR_UCHAR (char_I_deco_model);             // new in v.102. 0 == ZH-L16, 1 = ZH-L16-GF (Grandiant facttor)
+VAR_UCHAR (char_I_bottom_depth);           // Bottom depth for planning (used in gas volume evaluation).
+VAR_UCHAR (char_I_bottom_time);            // Bottom time for planning (used in gas volume evaluation).
+VAR_UCHAR (char_I_dive_interval);          // Delay before next dive simulation.
+
+TAB_UCHAR (char_I_deco_gas_change,NUM_GAS);// new in v.101
+TAB_UCHAR (char_I_deco_N2_ratio, NUM_GAS); // new in v.101
+TAB_UCHAR (char_I_deco_He_ratio, NUM_GAS); // new in v.101
+
+#ifdef __18CXX
+//----------------------------------------------------------------------------
+// Access to various utilities defined in ASM-code.
+//
+// Note: Need to switch to BANK1 before calling most of them !
+extern unsigned char win_top, win_leftx2, win_font, win_invert;
+extern ram unsigned char letter[26];
+
+extern void PLED_ClearScreen(void);
+extern void PLED_standard_color(void);
+extern void PLED_warnings_color(void);
+extern void PLED_divemask_color(void);
+
+extern void PLED_box(void);
+extern void PLED_frame(void);
+extern void aa_wordprocessor(void);
+
+/// Set WREG color.
+extern void PLED_set_color(void);
+#endif