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thumb32: Implement PUSH

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This can be handled as an alias for STMDB.
This commit is contained in:
Lioncash 2021-03-12 19:54:31 -05:00
parent 9cb4790428
commit 1d0b705996
3 changed files with 6 additions and 1 deletions
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2
src/frontend/A32/decoder/thumb32.inc
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@ -4,7 +4,7 @@
INST(thumb32_STMIA, "STMIA/STMEA", "1110100010W0nnnn0iiiiiiiiiiiiiii")
INST(thumb32_POP, "POP", "1110100010111101iiiiiiiiiiiiiiii")
INST(thumb32_LDMIA, "LDMIA/LDMFD", "1110100010W1nnnniiiiiiiiiiiiiiii")
//INST(thumb32_PUSH, "PUSH", "1110100100101101----------------")
INST(thumb32_PUSH, "PUSH", "11101001001011010iiiiiiiiiiiiiii")
INST(thumb32_STMDB, "STMDB/STMFD", "1110100100W0nnnn0iiiiiiiiiiiiiii")
INST(thumb32_LDMDB, "LDMDB/LDMEA", "1110100100W1nnnniiiiiiiiiiiiiiii")
//INST(thumb32_SRS_1, "SRS", "1110100110-0--------------------")

4
src/frontend/A32/translate/impl/thumb32_load_store_multiple.cpp
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@ -105,6 +105,10 @@ bool ThumbTranslatorVisitor::thumb32_POP(Imm<16> reg_list) {
return thumb32_LDMIA(true, Reg::SP, reg_list);
}
bool ThumbTranslatorVisitor::thumb32_PUSH(Imm<15> reg_list) {
return thumb32_STMDB(true, Reg::SP, reg_list);
}
bool ThumbTranslatorVisitor::thumb32_STMIA(bool W, Reg n, Imm<15> reg_list) {
const auto regs_imm = reg_list.ZeroExtend();
const auto num_regs = static_cast<u32>(Common::BitCount(regs_imm));

1
src/frontend/A32/translate/impl/translate_thumb.h
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@ -175,6 +175,7 @@ struct ThumbTranslatorVisitor final {
bool thumb32_LDMDB(bool W, Reg n, Imm<16> reg_list);
bool thumb32_LDMIA(bool W, Reg n, Imm<16> reg_list);
bool thumb32_POP(Imm<16> reg_list);
bool thumb32_PUSH(Imm<15> reg_list);
bool thumb32_STMIA(bool W, Reg n, Imm<15> reg_list);
bool thumb32_STMDB(bool W, Reg n, Imm<15> reg_list);