Types - Revision history

Aoineko at 16:40, 24 March 2024

2024-03-24T16:40:08Z

Aoineko at 16:39, 24 March 2024

2024-03-24T16:39:42Z

Aoineko at 15:05, 24 March 2024

2024-03-24T15:05:27Z

Aoineko at 15:04, 24 March 2024

2024-03-24T15:04:36Z

Aoineko at 08:03, 22 January 2024

2024-01-22T08:03:02Z

Aoineko at 18:53, 12 January 2024

2024-01-12T18:53:23Z

Aoineko at 00:33, 5 January 2024

2024-01-05T00:33:35Z

Aoineko at 00:32, 5 January 2024

2024-01-05T00:32:43Z

Aoineko: Created page with "You can use standard C types but MSXgl provide some shortcut that help to write short code and makes data size and sign explicit (which is so important for creating efficient..."

2024-01-05T00:30:38Z

Created page with "You can use standard C types but MSXgl provide some shortcut that help to write short code and makes data size and sign explicit (which is so important for creating efficient..."

New page

You can use standard C types but MSXgl provide some shortcut that help to write short code and makes data size and sign explicit (which is so important for creating efficient code).

MSXgl's types can be found in [https://github.com/aoineko-fr/MSXgl/blob/main/engine/src/core.h core.h].

{| class="wikitable"
|-
! Type !! Desc. !! SDCC equivalent
|-
| <tt>bool</tt> || Boolean (8 bits) || <tt>unsigned char</tt>
|-
| <tt>i8</tt> || 8 bits signed integer || <tt>signed char</tt>
|-
| <tt>u8</tt> || 8 bits unsigned integer || <tt>unsigned char</tt>
|-
| <tt>i16</tt> || 16 bits signed integer || <tt>signed short</tt>
|-
| <tt>u16</tt> || 16 bits unsigned integer || <tt>unsigned short</tt>
|-
| <tt>i32</tt> || 32 bits signed integer || <tt>signed long</tt>
|-
| <tt>u32</tt> || 32 bits unsigned integer || <tt>unsigned long</tt>
|-
| <tt>i64</tt> || 64 bits signed integer || <tt>signed long long</tt>
|-
| <tt>u64</tt> || 64 bits unsigned integer || <tt>unsigned long long</tt>
|-
| <tt>f32</tt> || 32 bits float (IEEE 754) || <tt>float</tt>
|-
| <tt>c8</tt> || 8 bits character (ASCII, UTF-8) || <tt>unsigned char</tt>
|-
| <tt>c16</tt> || 16 bits character (UTF-16, JIS, etc.) || <tt>unsigned short</tt>
|-
| <tt>ptr</tt> || Pointer || <tt>void*</tt>
|-
| <tt>callback</tt> || Callback default signature || <tt>void (*)(void)</tt>
|}

See also:
* Page about usage of [[boolean]] in MSXgl.
* [http://sdcc.sourceforge.net/doc/sdccman.pdf SDCC documentation]

@@ Line 7: / Line 7: @@
 ! Type !! Desc. !! [[SDCC]] equivalent !! Min value !! Max value
 |-
-| '''<tt>bool</tt>''' || Boolean (8 bits) || <tt>unsigned char</tt> || 0 || [[Boolean|not 0]]
+| '''<tt>bool</tt>''' || [[Boolean]] (8 bits) || <tt>unsigned char</tt> || 0 || [[Boolean|not 0]]
 |-
 | '''<tt>i8</tt>''' || 8 bits signed integer || <tt>signed char</tt> || -128 || 127

@@ Line 5: / Line 5: @@
 {| class="wikitable"
 |-
-! Type !! Desc. !! [[SDCC]] equivalent !! Min !! Max
+! Type !! Desc. !! [[SDCC]] equivalent !! Min value !! Max value
 |-
 | '''<tt>bool</tt>''' || Boolean (8 bits) || <tt>unsigned char</tt> || 0 || [[Boolean|not 0]]

@@ Line 11: / Line 11: @@
 | '''<tt>i8</tt>''' || 8 bits signed integer || <tt>signed char</tt> || -128 || 127
 |-
-| '''<tt>u8</tt>''' || 8 bits unsigned integer || <tt>unsigned char</tt> || 0 || 255 (0xFF)
+| '''<tt>u8</tt>''' || 8 bits unsigned integer || <tt>unsigned char</tt> || 0 || 255
 |-
 | '''<tt>i16</tt>''' || 16 bits signed integer || <tt>signed short</tt> || -32768 || 32767
 |-
-| '''<tt>u16</tt>''' || 16 bits unsigned integer || <tt>unsigned short</tt> || 0 || 65535 (0xFFFF)
+| '''<tt>u16</tt>''' || 16 bits unsigned integer || <tt>unsigned short</tt> || 0 || 65535
 |-
-| '''<tt>i32</tt>''' || 32 bits signed integer || <tt>signed long</tt> || -2147483648 || 2147483647
+| '''<tt>i32</tt>''' || 32 bits signed integer || <tt>signed long</tt> || -2,147,483,648 || 2,147,483,647
 |-
-| '''<tt>u32</tt>''' || 32 bits unsigned integer || <tt>unsigned long</tt> || 0 || 4294967295 (0xFFFFFFFF)
+| '''<tt>u32</tt>''' || 32 bits unsigned integer || <tt>unsigned long</tt> || 0 || 4,294,967,295
 |-
 | '''<tt>i64</tt>''' || 64 bits signed integer || <tt>signed long long</tt> || -9,223,372,036,854,775,808 || 9,223,372,036,854,775,807
 |-
-| '''<tt>u64</tt>''' || 64 bits unsigned integer || <tt>unsigned long long</tt> || 0 || 18,446,744,073,709,551,615 (0xFFFFFFFFFFFFFFFF)
+| '''<tt>u64</tt>''' || 64 bits unsigned integer || <tt>unsigned long long</tt> || 0 || 18,446,744,073,709,551,615
 |-
 | '''<tt>f32</tt>''' || 32 bits float (IEEE 754) || <tt>float</tt> || 1,175494351e-38 || 3,402823466e+38
 |-
-| '''<tt>c8</tt>''' || 8 bits character (ASCII, UTF-8) || <tt>unsigned char</tt> || 0 || 255 (0xFF)
+| '''<tt>c8</tt>''' || 8 bits character (ASCII, UTF-8) || <tt>unsigned char</tt> || 0 || 255
 |-
-| '''<tt>c16</tt>''' || 16 bits character (UTF-16, JIS, etc.) || <tt>unsigned short</tt> || 0 || 65535 (0xFFFF)
+| '''<tt>c16</tt>''' || 16 bits character (UTF-16, JIS, etc.) || <tt>unsigned short</tt> || 0 || 65535
 |-
 | '''<tt>ptr</tt>''' || Pointer || <tt>void*</tt> || 0x0000 || 0xFFFF

@@ Line 5: / Line 5: @@
 {| class="wikitable"
 |-
-! Type !! Desc. !! [[SDCC]] equivalent
+! Type !! Desc. !! [[SDCC]] equivalent !! Min !! Max
 |-
-| '''<tt>bool</tt>''' || Boolean (8 bits) || <tt>unsigned char</tt>
+| '''<tt>bool</tt>''' || Boolean (8 bits) || <tt>unsigned char</tt> || 0 || [[Boolean|not 0]]
 |-
-| '''<tt>i8</tt>''' || 8 bits signed integer || <tt>signed char</tt>
+| '''<tt>i8</tt>''' || 8 bits signed integer || <tt>signed char</tt> || -128 || 127
 |-
-| '''<tt>u8</tt>''' || 8 bits unsigned integer || <tt>unsigned char</tt>
+| '''<tt>u8</tt>''' || 8 bits unsigned integer || <tt>unsigned char</tt> || 0 || 255 (0xFF)
 |-
-| '''<tt>i16</tt>''' || 16 bits signed integer || <tt>signed short</tt>
+| '''<tt>i16</tt>''' || 16 bits signed integer || <tt>signed short</tt> || -32768 || 32767
 |-
-| '''<tt>u16</tt>''' || 16 bits unsigned integer || <tt>unsigned short</tt>
+| '''<tt>u16</tt>''' || 16 bits unsigned integer || <tt>unsigned short</tt> || 0 || 65535 (0xFFFF)
 |-
-| '''<tt>i32</tt>''' || 32 bits signed integer || <tt>signed long</tt>
+| '''<tt>i32</tt>''' || 32 bits signed integer || <tt>signed long</tt> || -2147483648 || 2147483647
 |-
-| '''<tt>u32</tt>''' || 32 bits unsigned integer || <tt>unsigned long</tt>
+| '''<tt>u32</tt>''' || 32 bits unsigned integer || <tt>unsigned long</tt> || 0 || 4294967295 (0xFFFFFFFF)
 |-
-| '''<tt>i64</tt>''' || 64 bits signed integer || <tt>signed long long</tt>
+| '''<tt>i64</tt>''' || 64 bits signed integer || <tt>signed long long</tt> || -9,223,372,036,854,775,808 || 9,223,372,036,854,775,807
 |-
-| '''<tt>u64</tt>''' || 64 bits unsigned integer || <tt>unsigned long long</tt>
+| '''<tt>u64</tt>''' || 64 bits unsigned integer || <tt>unsigned long long</tt> || 0 || 18,446,744,073,709,551,615 (0xFFFFFFFFFFFFFFFF)
 |-
-| '''<tt>f32</tt>''' || 32 bits float (IEEE 754) || <tt>float</tt>
+| '''<tt>f32</tt>''' || 32 bits float (IEEE 754) || <tt>float</tt> || 1,175494351e-38 || 3,402823466e+38
 |-
-| '''<tt>c8</tt>''' || 8 bits character (ASCII, UTF-8) || <tt>unsigned char</tt>
+| '''<tt>c8</tt>''' || 8 bits character (ASCII, UTF-8) || <tt>unsigned char</tt> || 0 || 255 (0xFF)
 |-
-| '''<tt>c16</tt>''' || 16 bits character (UTF-16, JIS, etc.) || <tt>unsigned short</tt>
+| '''<tt>c16</tt>''' || 16 bits character (UTF-16, JIS, etc.) || <tt>unsigned short</tt> || 0 || 65535 (0xFFFF)
 |-
-| '''<tt>ptr</tt>''' || Pointer || <tt>void*</tt>
+| '''<tt>ptr</tt>''' || Pointer || <tt>void*</tt> || 0x0000 || 0xFFFF
 |-
-| '''<tt>callback</tt>''' || Callback default signature || <tt>void (*)(void)</tt>
+| '''<tt>callback</tt>''' || Callback default signature || <tt>void (*)(void)</tt> || ||
 |}

@@ Line 1: / Line 1: @@
-You can use standard C types but MSXgl provide some shortcut that help to write short code and makes data size and sign explicit (which is so important for creating efficient code on a Z80).
+You can use standard C types to define variables but MSXgl provide some shortcut that help to write short code and makes data size and sign explicit (which is so important for creating efficient code on a Z80).
 MSXgl's types can be found in [https://github.com/aoineko-fr/MSXgl/blob/main/engine/src/core.h core.h].
@@ Line 5: / Line 5: @@
 {| class="wikitable"
 |-
-! Type !! Desc. !! SDCC equivalent
+! Type !! Desc. !! [[SDCC]] equivalent
 |-
 | '''<tt>bool</tt>''' || Boolean (8 bits) || <tt>unsigned char</tt>
@@ Line 36: / Line 36: @@
 |}
-Related consant:
+Related constants:
 <syntaxhighlight lang="c">
 #define NULL	0	// Pointer "NULL" value

← Older revision		Revision as of 18:53, 12 January 2024
Line 1:		Line 1:
−	You can use standard C types but MSXgl provide some shortcut that help to write short code and makes data size and sign explicit (which is so important for creating efficient code).	+	You can use standard C types but MSXgl provide some shortcut that help to write short code and makes data size and sign explicit (which is so important for creating efficient code on a Z80).

	MSXgl's types can be found in [https://github.com/aoineko-fr/MSXgl/blob/main/engine/src/core.h core.h].		MSXgl's types can be found in [https://github.com/aoineko-fr/MSXgl/blob/main/engine/src/core.h core.h].

@@ Line 35: / Line 35: @@
 | <tt>callback</tt> || Callback default signature || <tt>void (*)(void)</tt>
 |}
 See also:
 * Page about usage of [[boolean]] in MSXgl.
 * [http://sdcc.sourceforge.net/doc/sdccman.pdf SDCC documentation]