From bec5270f1c6b8cc629eb60588d2badd69d24ec13 Mon Sep 17 00:00:00 2001 From: mrb0nk500 Date: Fri, 21 Jan 2022 13:13:07 -0400 Subject: sux.h: Add bitmasks for setting/testing/clearing flags, and for bitwise operations. --- sux.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sux.h b/sux.h index 1eaaffe..4e49f5f 100644 --- a/sux.h +++ b/sux.h @@ -1831,6 +1831,15 @@ static /*inline*/ void inst_##op(struct sux *cpu, uint8_t prefix, uint8_t size, i t(7, 0x00000000, 0x10000000, 0x00000000, 0x00000000, 0x00000200, 0x00000001, 0x00010000, 0x00000000) { push(cpu, cpu->pc, (rs) ? rs : 7, thread); } /* Push return address onto the stack. */ \ t(7, 0x00001000, 0x10000000, 0x00000000, 0x00000000, 0x00000200, 0x00000001, 0x00010001, 0x00010000) { cpu->pc = addr; } /* Set program counter to supplied address. */ \ t(7, 0x00004000, 0x00004000, 0x00004000, 0x00004000, 0x00004200, 0x00000000, 0x00000000, 0x00000000) { push(cpu, *reg, rs, thread); } /* Push value onto the stack. */ \ + /* Setting/Testing/Clearing flags, and bitwise operations. */ \ + t(7, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000200, 0x00000200, 0x02000200, 0x02000200) { tmp = 1; } \ + t(0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000) { tmp <<= 1; } \ + t(7, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000200, 0x00000200, 0x02000200, 0x00000000) { tmp <<= 2; } \ + t(0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000) { tmp <<= 4; } \ + t(0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000200, 0x00220222, 0x00000200) { tmp = ~tmp; } /* sbc, and clear flag. */ \ + t(0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00220022, 0x00000000, 0x02000000, 0x02000000) { tmp |= *reg; } /* ora, and set flag. */ \ + t(0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00220222, 0x00000200, 0x00000200) { tmp &= *reg; } /* AND, and clear/test flag. */ \ + t(0, 0x00000000, 0x00000000, 0x00000000, 0x00220022, 0x00000000, 0x00000000, 0x00000000, 0x00000000) { tmp ^= *reg; } /* xor. */ \ } #undef ORTHO_1CC -- cgit v1.2.3-13-gbd6f