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ASL, LSR, ROL, ROR in ABX now consume only 6 cycles

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(Down from 7 cycles.)
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Peter Evans 2018-02-22 13:45:36 -06:00
parent e35ff91fa7
commit 691387894a
1 changed files with 4 additions and 4 deletions
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8
src/mos6502.c
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@ -133,13 +133,13 @@ static mos6502_instruction_handler instruction_handlers[] = {
static int cycles[] = {
// 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
7, 6, 0, 0, 5, 3, 5, 0, 3, 2, 2, 0, 6, 4, 6, 0, // 0x
2, 5, 5, 0, 5, 4, 6, 0, 2, 4, 2, 0, 6, 4, 7, 0, // 1x
2, 5, 5, 0, 5, 4, 6, 0, 2, 4, 2, 0, 6, 4, 6, 0, // 1x
6, 6, 0, 0, 3, 3, 5, 0, 4, 2, 2, 0, 4, 4, 6, 0, // 2x
2, 5, 5, 0, 4, 4, 6, 0, 2, 4, 2, 0, 4, 4, 7, 0, // 3x
2, 5, 5, 0, 4, 4, 6, 0, 2, 4, 2, 0, 4, 4, 6, 0, // 3x
6, 6, 0, 0, 0, 3, 5, 0, 3, 2, 2, 0, 3, 4, 6, 0, // 4x
2, 5, 5, 0, 0, 4, 6, 0, 2, 4, 3, 0, 0, 4, 7, 0, // 5x
2, 5, 5, 0, 0, 4, 6, 0, 2, 4, 3, 0, 0, 4, 6, 0, // 5x
6, 6, 0, 0, 3, 3, 5, 0, 4, 2, 2, 0, 5, 4, 6, 0, // 6x
2, 5, 5, 0, 4, 4, 6, 0, 2, 4, 4, 0, 6, 4, 7, 0, // 7x
2, 5, 5, 0, 4, 4, 6, 0, 2, 4, 4, 0, 6, 4, 6, 0, // 7x
3, 6, 0, 0, 3, 3, 3, 0, 2, 2, 2, 0, 4, 4, 4, 0, // 8x
2, 6, 5, 0, 4, 4, 4, 0, 2, 5, 2, 0, 4, 5, 5, 0, // 9x
2, 6, 2, 0, 3, 3, 3, 0, 2, 2, 2, 0, 4, 4, 4, 0, // Ax