From ee6b0d373c479e7ba8c32863c32f0cf39d1a4c5b Mon Sep 17 00:00:00 2001 From: mrb0nk500 Date: Wed, 19 Jan 2022 15:54:23 -0400 Subject: sux.h: Add bitmasks for stack related operations. --- sux.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sux.h b/sux.h index 1efae9d..adbb5a8 100644 --- a/sux.h +++ b/sux.h @@ -1824,6 +1824,12 @@ static /*inline*/ void inst_##op(struct sux *cpu, uint8_t prefix, uint8_t size, t(0, 0x00000000, 0x00000000, 0x02000000, 0x02100110, 0x02000000, 0x00000000, 0x00000000, 0x00000000) { --tmp; } /* dec */ \ /* Store modified value into memory. */ \ t(0, 0x00100000, 0x04101400, 0x00100100, 0x10100100, 0x01001000, 0x51005000, 0x51005000, 0x01001000) { write_value(cpu, tmp, addr, rs, inc_clk, 1); } \ + /* Stack related operations, and unconditional jumps. */ \ + t(7, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x40004200, 0x00000000, 0x00000000, 0x00000000) { rs = 0; } /* php, plp, and interrupts. */ \ + t(0, 0x40000000, 0x40000000, 0x40000000, 0x40000000, 0x40000001, 0x00000000, 0x00000000, 0x00000000) { *reg = pull(cpu, rs, thread); } /* Pull value off the stack. */ \ + t(0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000001, 0x00010000, 0x00000000, 0x00000000) { cpu->pc = pull(cpu, (rs) ? rs : 7, thread); } /* Pull return address off the stack. */ \ +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, 0x00004000, 0x00004000, 0x00004000, 0x00004000, 0x00004200, 0x00000000, 0x00000000, 0x00000000) { push(cpu, *reg, rs, thread); } /* Push value onto the stack. */ \ } #undef ORTHO_1CC -- cgit v1.2.3-13-gbd6f