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ReC98/platform.h

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[Decompilation] Finally declare <stdint.h> types *Finally*. We already used `(unsigned) int` in quite a few places where we actually want a 16-bit value, which was bound to annoy future port developers.
2019-12-11 20:42:27 +00:00
/* ReC98
* -----
* Platform- and compiler-specific types.
*/
/// <stdint.h>
/// ----------
[Maintenance] Fix comment↔code associations • Comments that describe all lines of code until a blank one are placed into the lines immediately above • Comments that describe an entire demarcated block are placed immediately below the dash row at the top • In any case, there should be a blank line after the top comment of a demarcated block, to keep IntelliSense-style systems from applying the block comment to the first actual line of code… • …but there shouldn't be one before the dash row at the bottom, where it'd be redundant. Part of P0207, funded by GhostPhanom.
2022-08-04 13:29:34 +00:00
[Decompilation] Finally declare <stdint.h> types *Finally*. We already used `(unsigned) int` in quite a few places where we actually want a 16-bit value, which was bound to annoy future port developers.
2019-12-11 20:42:27 +00:00
// __TURBOC__ is #define'd on both "Borland" and "Turbo" editions, unlike
// __BORLANDC__, which is only #define'd on the former.
#if defined(__TURBOC__) && defined(__MSDOS__)
[Maintenance] Consistently indent preprocessor macros Let's see if anyone ever tries to compile this codebase with a pre-C89 compiler that enforces the # at the beginning of the line. Part of P0203, funded by [Anonymous] and GhostRiderCog.
2022-07-08 21:18:43 +00:00
typedef unsigned char bool;
typedef int bool16;
#define false 0
#define true 1
typedef char int8_t;
typedef int int16_t;
typedef long int32_t;
typedef unsigned char uint8_t;
typedef unsigned int uint16_t;
typedef unsigned long uint32_t;
[Maintenance] Move the generic function pointer types to `platform.h` It kind of is a platform detail, after all. Those 4 `typedef`s don't really justify their own header file. Part of P0130, funded by Yanga.
2020-12-16 17:50:49 +00:00
[Maintenance] Consistently indent preprocessor macros Let's see if anyone ever tries to compile this codebase with a pre-C89 compiler that enforces the # at the beginning of the line. Part of P0203, funded by [Anonymous] and GhostRiderCog.
2022-07-08 21:18:43 +00:00
// Generic callback function types. Note the difference between function
// distance (nearfunc / farfunc) and pointer variable distance
// (t_near / t_far).
typedef void (near pascal *near nearfunc_t_near)(void);
typedef void ( far pascal *near farfunc_t_near)(void);
typedef void (near pascal * far nearfunc_t_far)(void);
typedef void ( far pascal * far farfunc_t_far)(void);
[Decompilation] Finally declare <stdint.h> types *Finally*. We already used `(unsigned) int` in quite a few places where we actually want a 16-bit value, which was bound to annoy future port developers.
2019-12-11 20:42:27 +00:00
#else
[Maintenance] Consistently indent preprocessor macros Let's see if anyone ever tries to compile this codebase with a pre-C89 compiler that enforces the # at the beginning of the line. Part of P0203, funded by [Anonymous] and GhostRiderCog.
2022-07-08 21:18:43 +00:00
#error This code can currently only be compiled on Borland's 16-bit DOS compilers. Ideally, you'd only have to declare <stdint.h> types for your compiler here though?
[Decompilation] Finally declare <stdint.h> types *Finally*. We already used `(unsigned) int` in quite a few places where we actually want a 16-bit value, which was bound to annoy future port developers.
2019-12-11 20:42:27 +00:00
#endif
/// ----------
[Decompilation] Add a separate segment type At least wherever Turbo C++ and master.lib want us to use a non-pointer, since both use uint16_t for segment values throughout their APIs instead of the more sensible void __seg*. Maybe, integer arithmetic on segment values was widely considered more important than dereferencing?
2019-12-13 18:17:02 +00:00
[Maintenance] Add a `nullptr` polyfill to platform.h Which allows us to remove <stddef.h> from translation units that just needed it for `NULL`. Part of P0203, funded by [Anonymous] and GhostRiderCog.
2022-06-26 09:32:25 +00:00
#if (__cplusplus < 201103L)
[Maintenance] Correctly define `nullptr` as `far` for far-data memory models Turns out I've misread the execl() documentation. That function does in fact *not* need a second `nullptr` parameter for envp, because it doesn't pass envp. Part of P0216, funded by JonathKane.
2022-08-15 01:30:33 +00:00
#ifdef __LARGE__
#define nullptr 0UL
#else
#define nullptr 0U
#endif
[Maintenance] Add a `nullptr` polyfill to platform.h Which allows us to remove <stddef.h> from translation units that just needed it for `NULL`. Part of P0203, funded by [Anonymous] and GhostRiderCog.
2022-06-26 09:32:25 +00:00
#endif
[Maintenance] Add a static_assert() polyfill to platform.h Part of P0198, funded by Lmocinemod and Ember2528.
2022-06-09 15:03:49 +00:00
// Message-less static_assert() wasn't available until C++17
#if (__cplusplus < 201703L)
#define static_assert(condition) ((void)sizeof(char[1 - 2*!(condition)]))
#endif
[Decompilation] Add a separate segment type At least wherever Turbo C++ and master.lib want us to use a non-pointer, since both use uint16_t for segment values throughout their APIs instead of the more sensible void __seg*. Maybe, integer arithmetic on segment values was widely considered more important than dereferencing?
2019-12-13 18:17:02 +00:00
// Both Turbo C++ and master.lib use uint16_t for segment values throughout
// their APIs instead of the more sensible void __seg*. Maybe, integer
// arithmetic on segment values was widely considered more important than
// dereferencing?
typedef uint16_t seg_t;