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file from the new abstract machine;
floats are actually doubles in 64 bit
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Pavol Marko
parent
9902faa81c
commit
bada4d4336
@ -14,6 +14,8 @@
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* 2003-11-24: A few more native functions (geometry), plus minor modifications,
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* mostly to be compatible with dynamically loadable extension
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* modules, by Thiadmer Riemersma
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* 2004-01-09: Adaptions for 64-bit cells (using "double precision"), by
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* Thiadmer Riemersma
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*/
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#include <stdlib.h> /* for atof() */
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#include <stdio.h> /* for NULL */
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@ -27,6 +29,14 @@
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#endif
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*/
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#if SMALL_CELL_SIZE==32
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#define REAL float
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#elif SMALL_CELL_SIZE==64
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#define REAL double
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#else
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#error Unsupported cell size
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#endif
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#define PI 3.1415926535897932384626433832795
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#if defined __BORLANDC__ || defined __WATCOMC__
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@ -39,10 +49,10 @@ static cell AMX_NATIVE_CALL n_float(AMX *amx,cell *params)
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* params[0] = number of bytes
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* params[1] = long value to convert to a float
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*/
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float fValue;
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REAL fValue;
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/* Convert to a float. Calls the compilers long to float conversion. */
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fValue = (float) params[1];
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fValue = (REAL) params[1];
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/* Return the cell. */
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return amx_ftoc(fValue);
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@ -60,7 +70,7 @@ static cell AMX_NATIVE_CALL n_floatstr(AMX *amx,cell *params)
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*/
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char szSource[60];
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cell *pString;
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float fNum;
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REAL fNum;
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int nLen;
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/* They should have sent us 1 cell. */
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@ -75,10 +85,10 @@ static cell AMX_NATIVE_CALL n_floatstr(AMX *amx,cell *params)
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return 0;
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/* Now convert the Small String into a C type null terminated string */
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amx_GetString(szSource, pString);
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amx_GetString(szSource, pString, 0);
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/* Now convert this to a float. */
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fNum = (float)atof(szSource);
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fNum = (REAL)atof(szSource);
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return amx_ftoc(fNum);
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}
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@ -94,7 +104,7 @@ static cell AMX_NATIVE_CALL n_floatmul(AMX *amx,cell *params)
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* params[1] = float operand 1
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* params[2] = float operand 2
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*/
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float fRes = amx_ctof(params[1]) * amx_ctof(params[2]);
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REAL fRes = amx_ctof(params[1]) * amx_ctof(params[2]);
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return amx_ftoc(fRes);
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}
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@ -109,7 +119,7 @@ static cell AMX_NATIVE_CALL n_floatdiv(AMX *amx,cell *params)
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* params[1] = float dividend (top)
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* params[2] = float divisor (bottom)
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*/
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float fRes = amx_ctof(params[1]) / amx_ctof(params[2]);
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REAL fRes = amx_ctof(params[1]) / amx_ctof(params[2]);
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return amx_ftoc(fRes);
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}
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@ -124,7 +134,7 @@ static cell AMX_NATIVE_CALL n_floatadd(AMX *amx,cell *params)
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* params[1] = float operand 1
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* params[2] = float operand 2
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*/
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float fRes = amx_ctof(params[1]) + amx_ctof(params[2]);
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REAL fRes = amx_ctof(params[1]) + amx_ctof(params[2]);
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return amx_ftoc(fRes);
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}
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@ -139,7 +149,7 @@ static cell AMX_NATIVE_CALL n_floatsub(AMX *amx,cell *params)
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* params[1] = float operand 1
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* params[2] = float operand 2
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*/
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float fRes = amx_ctof(params[1]) - amx_ctof(params[2]);
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REAL fRes = amx_ctof(params[1]) - amx_ctof(params[2]);
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return amx_ftoc(fRes);
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}
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@ -154,8 +164,8 @@ static cell AMX_NATIVE_CALL n_floatfract(AMX *amx,cell *params)
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* params[0] = number of bytes
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* params[1] = float operand
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*/
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float fA = amx_ctof(params[1]);
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fA = fA - (float)(floor((double)fA));
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REAL fA = amx_ctof(params[1]);
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fA = fA - (REAL)(floor((double)fA));
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return amx_ftoc(fA);
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}
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@ -171,24 +181,24 @@ static cell AMX_NATIVE_CALL n_floatround(AMX *amx,cell *params)
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* params[1] = float operand
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* params[2] = Type of rounding (long)
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*/
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float fA = amx_ctof(params[1]);
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REAL fA = amx_ctof(params[1]);
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switch (params[2])
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{
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case 1: /* round downwards (truncate) */
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fA = (float)(floor((double)fA));
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fA = (REAL)(floor((double)fA));
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break;
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case 2: /* round upwards */
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fA = (float)(ceil((double)fA));
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fA = (REAL)(ceil((double)fA));
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break;
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case 3: /* round towards zero */
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if ( fA>=0.0 )
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fA = (float)(floor((double)fA));
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fA = (REAL)(floor((double)fA));
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else
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fA = (float)(ceil((double)fA));
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fA = (REAL)(ceil((double)fA));
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break;
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default: /* standard, round to nearest */
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fA = (float)(floor((double)fA+.5));
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fA = (REAL)(floor((double)fA+.5));
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break;
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}
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@ -206,7 +216,7 @@ static cell AMX_NATIVE_CALL n_floatcmp(AMX *amx,cell *params)
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* params[1] = float operand 1
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* params[2] = float operand 2
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*/
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float fA, fB;
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REAL fA, fB;
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fA = amx_ctof(params[1]);
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fB = amx_ctof(params[2]);
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@ -226,8 +236,8 @@ static cell AMX_NATIVE_CALL n_floatsqroot(AMX *amx,cell *params)
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* params[0] = number of bytes
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* params[1] = float operand
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*/
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float fA = amx_ctof(params[1]);
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fA = (float)sqrt(fA);
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REAL fA = amx_ctof(params[1]);
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fA = (REAL)sqrt(fA);
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if (fA < 0)
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return amx_RaiseError(amx, AMX_ERR_DOMAIN);
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return amx_ftoc(fA);
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@ -244,9 +254,9 @@ static cell AMX_NATIVE_CALL n_floatpower(AMX *amx,cell *params)
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* params[1] = float operand 1 (base)
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* params[2] = float operand 2 (exponent)
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*/
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float fA = amx_ctof(params[1]);
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float fB = amx_ctof(params[2]);
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fA = (float)pow(fA, fB);
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REAL fA = amx_ctof(params[1]);
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REAL fB = amx_ctof(params[2]);
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fA = (REAL)pow(fA, fB);
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return amx_ftoc(fA);
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}
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@ -261,25 +271,25 @@ static cell AMX_NATIVE_CALL n_floatlog(AMX *amx,cell *params)
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* params[1] = float operand 1 (value)
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* params[2] = float operand 2 (base)
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*/
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float fValue = amx_ctof(params[1]);
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float fBase = amx_ctof(params[2]);
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REAL fValue = amx_ctof(params[1]);
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REAL fBase = amx_ctof(params[2]);
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if (fValue <= 0.0 || fBase <= 0)
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return amx_RaiseError(amx, AMX_ERR_DOMAIN);
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if (fBase == 10.0) // ??? epsilon
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fValue = (float)log10(fValue);
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fValue = (REAL)log10(fValue);
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else
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fValue = (float)(log(fValue) / log(fBase));
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fValue = (REAL)(log(fValue) / log(fBase));
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return amx_ftoc(fValue);
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}
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static float ToRadians(float angle, int radix)
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static REAL ToRadians(REAL angle, int radix)
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{
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switch (radix)
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{
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case 1: /* degrees, sexagesimal system (technically: degrees/minutes/seconds) */
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return (float)(angle * PI / 180.0);
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return (REAL)(angle * PI / 180.0);
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case 2: /* grades, centesimal system */
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return (float)(angle * PI / 200.0);
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return (REAL)(angle * PI / 200.0);
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default: /* assume already radian */
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return angle;
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} /* switch */
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@ -296,9 +306,9 @@ static cell AMX_NATIVE_CALL n_floatsin(AMX *amx,cell *params)
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* params[1] = float operand 1 (angle)
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* params[2] = float operand 2 (radix)
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*/
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float fA = amx_ctof(params[1]);
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REAL fA = amx_ctof(params[1]);
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fA = ToRadians(fA, params[2]);
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fA = sinf(fA); // PM: using the float version of sin
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fA = sin(fA);
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return amx_ftoc(fA);
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}
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@ -313,9 +323,9 @@ static cell AMX_NATIVE_CALL n_floatcos(AMX *amx,cell *params)
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* params[1] = float operand 1 (angle)
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* params[2] = float operand 2 (radix)
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*/
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float fA = amx_ctof(params[1]);
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REAL fA = amx_ctof(params[1]);
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fA = ToRadians(fA, params[2]);
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fA = cosf(fA); // PM: using the float version of cos
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fA = cos(fA);
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return amx_ftoc(fA);
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}
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@ -330,9 +340,9 @@ static cell AMX_NATIVE_CALL n_floattan(AMX *amx,cell *params)
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* params[1] = float operand 1 (angle)
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* params[2] = float operand 2 (radix)
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*/
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float fA = amx_ctof(params[1]);
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REAL fA = amx_ctof(params[1]);
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fA = ToRadians(fA, params[2]);
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fA = tanf(fA); // PM: using the float version of tan
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fA = tan(fA);
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return amx_ftoc(fA);
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}
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@ -342,7 +352,7 @@ static cell AMX_NATIVE_CALL n_floattan(AMX *amx,cell *params)
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/******************************************************************/
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static cell AMX_NATIVE_CALL n_floatabs(AMX *amx,cell *params)
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{
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float fA = amx_ctof(params[1]);
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REAL fA = amx_ctof(params[1]);
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fA = (fA >= 0) ? fA : -fA;
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return amx_ftoc(fA);
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}
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