3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
12 * Ternary instructions instr rA,rS,UIMM
14 * Logic instructions: ori, oris, xori, xoris
16 * The test contains a pre-built table of instructions, operands and
17 * expected results. For each table entry, the test will cyclically use
18 * different sets of operand registers and result registers.
24 #if CONFIG_POST & CONFIG_SYS_POST_CPU
26 extern void cpu_post_exec_21 (ulong *code, ulong *cr, ulong *res, ulong op);
27 extern ulong cpu_post_makecr (long v);
29 static struct cpu_post_threei_s
35 } cpu_post_threei_table[] =
62 static unsigned int cpu_post_threei_size = ARRAY_SIZE(cpu_post_threei_table);
64 int cpu_post_test_threei (void)
68 int flag = disable_interrupts();
70 for (i = 0; i < cpu_post_threei_size && ret == 0; i++)
72 struct cpu_post_threei_s *test = cpu_post_threei_table + i;
74 for (reg = 0; reg < 32 && ret == 0; reg++)
76 unsigned int reg0 = (reg + 0) % 32;
77 unsigned int reg1 = (reg + 1) % 32;
78 unsigned int stk = reg < 16 ? 31 : 15;
79 unsigned long code[] =
82 ASM_ADDI(stk, 1, -16),
84 ASM_STW(reg0, stk, 4),
85 ASM_STW(reg1, stk, 0),
86 ASM_LWZ(reg0, stk, 8),
87 ASM_11IX(test->cmd, reg1, reg0, test->op2),
88 ASM_STW(reg1, stk, 8),
89 ASM_LWZ(reg1, stk, 0),
90 ASM_LWZ(reg0, stk, 4),
100 cpu_post_exec_21 (code, & cr, & res, test->op1);
102 ret = res == test->res && cr == 0 ? 0 : -1;
106 post_log ("Error at threei test %d !\n", i);