Mercurial > public > hwos_code
view src/math.inc @ 653:8bcd138ab744
add tools/o3pack.bat and the required tools/libs
| author | heinrichsweikamp |
|---|---|
| date | Fri, 11 Aug 2023 15:53:49 +0200 |
| parents | 7d8a4c60ec1a |
| children | 75e90cd0c2c3 |
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;============================================================================= ; ; File math.inc * combined next generation V3.09.4k ; ; ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved. ;============================================================================= ; HISTORY ; 2011-08-03 : [mH] moving from OSTC code ;----------------------------------------------------------------------------- ; SHIFT-RIGHT with UNSIGNED values ; extern div16 ; divA:2 = divA:2 / 2^WREG ; trashes WREG ;----------------------------------------------------------------------------- ; SHIFT-LEFT with UNSIGNED values ; extern mult16 ; divA:2 = divA:2 * 2^WREG ; trashes WREG ;----------------------------------------------------------------------------- ; ADDITION with UNSIGNED values ; extern addU16 ; sub_c:2 = sub_a:2 + sub_b:2 ; trashes WREG ;----------------------------------------------------------------------------- ; SUBTRACTION with SIGNED values ; extern sub16 ; sub_c:2 = sub_a:2 - sub_b:2 ; sets neg_flag if result is < 0 ; trashes WREG ;----------------------------------------------------------------------------- ; SUBTRACTION with UNSIGNED values ; extern subU16 ; sub_c:2 = sub_a:2 - sub_b:2 ; sets neg_flag if result is < 0 ; trashes WREG ;----------------------------------------------------------------------------- ; COMPARE with UNSIGNED values ; extern cmpU16 ; trashed = sub_a:2 - sub_b:2 ; sets neg_flag if result is < 0, but does not store result itself ; trashes WREG ;----------------------------------------------------------------------------- ; MULTIPLICATION with UNSIGNED values ; extern mult16x16 ; xC:4 = xA:2 * xB:2 ; trashes PRODL, PRODH, WREG ;----------------------------------------------------------------------------- ; DIVISION with UNSIGNED values ; extern div16x16 ; xC:2 = xA:2 / xB:2 with xA as remainder ; trashes xB, WREG ;----------------------------------------------------------------------------- ; DIVISION with UNSIGNED values ; extern div32x16 ; xC:4 = xC:4 / xB:2 with xA as remainder ; trashes WREG ;----------------------------------------------------------------------------- ; Math Functions specific for Use by ISR ;----------------------------------------------------------------------------- ;----------------------------------------------------------------------------- ; 24 bit shift, repeated WREG times, dedicated to a specific usage ; extern isr_shift_C31 ;----------------------------------------------------------------------------- ; MULTIPLICATION with UNSIGNED values ; extern isr_unsigned_mult16x16 ; isr_xC = isr_xA * isr_xB ; trashes PRODL, PRODH, WREG ;----------------------------------------------------------------------------- ; MULTIPLICATION with UNSIGNED values ; extern isr_unsigned_mult24x24 ; isr_xC = isr_xA * isr_xB ; trashes PRODL, PRODH, WREG extern isr_unsigned_mult32x24 ; isr_xC = isr_xA * isr_xB ; trashes PRODL, PRODH, WREG ;----------------------------------------------------------------------------- ; MULTIPLICATION with SIGNED values ; extern isr_signed_mult16x16 ; isr_xC = isr_xA * isr_xB ; trashes PRODL, PRODH, WREG extern isr_signed_mult24x24 ;----------------------------------------------------------------------------- ; DIVISION with UNSIGNED values ; extern isr_div16x16 ; isr_xC:2 = isr_xA:2 / isr_xB:2 with isr_xA as remainder ; trashes xB, WREG ;----------------------------------------------------------------------------- ; DIVISION with UNSIGNED values ; extern isr_div32x16 ; isr_xC:4 = isr_xC:4 / isr_xB:2 with isr_xA as remainder