Speedups

Because it uses SIMD instructions Vector Pascal provides considerable speedups on vector loop based applications:

Table 1: Comparative Compiler Performances on Convolution using 1 Ghz Athlon

Program	Implementation	Target Processor	Million Ops Per Second	Cpu
conv	Vector Pascal	Pentium + MMX	61	1 Ghz Athlon
	Borland Pascal	286 + 287	5.5	1 Ghz Athlon
	Delphi 4	486	86	1 Ghz Athlon
	DevPascal	486	62	1 Ghz Athlon
	Free Pascal	386	138	1.6Ghz Centrino
pconv	Vector Pascal	486	80	1 Ghz Athlon
	Vector Pascal	Pentium + MMX	817	1 Ghz Athlon
	Vector Pascal	Intel SSE1	1240	1.6Ghz Centrino

Table 2: Pascal Compiler Performances in Million Ops per Second on vector kernels

TEST	DevP	TMT	BP 286	DP 4	VP 486	VP K6	VP P4
CPU USED	1 Ghz Athlon	1 Ghz Athlon	1 Ghz Athlon	1 Ghz Athlon	1 Ghz Athlon	1 Ghz Athlon	1.6 Ghz Centrino
unsigned byte additions	71	80	46	166	333	2329	7220
saturated unsigned byte additions	55	57	38	110	225	2329	9142
32 bit integer additions	85	59	47	285	349	635	1210
16 bit integer additions	66	74	39	124	367	1165	5120
real additions	47	10	33	250	367	582	1174
pixel additions	49	46	23	98	188	2330	11907
pixel multiplications	67	14	39	99	158	998	12487
real dot product	47	10	32	161	164	665	395
integer dot product	79	58	33	440	517	465	516

Abbreviations DevP - Dev Pascal version 1.9, TMT - TMT Pascal version 3, BP 286 - Borland Pascal compiler with 287 instructions enabled range checks off., DP 4 - Delphiversion 4, VP 486 - Vector Pascal targeted at a 486 , VP K6 - Vector Pascal targeted at an AMD K6 VP P4 – Vector Pascal targeted at Intel SSE2 instructionset.