6502/6502-cpp
1
0
Fork 0
mirror of https://github.com/lefticus/6502-cpp.git synced 2025-07-09 22:24:11 +00:00
Code Issues Projects Releases Wiki Activity

Better stack handling. We now require -mtiny-stack from GCC

Browse Source
This commit is contained in:
Jason Turner
2021-05-08 22:58:55 -06:00
parent baf9c092ea
commit a4edf7194e
5 changed files with 49 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/6502.hpp
View File

@ -34,6 +34,7 @@ struct mos6502 : ASMLine
jsr,
lda,
ldx,
ldy,
lsr,
@ -51,11 +52,14 @@ struct mos6502 : ASMLine
sbc,
sec,
sta,
stx,
sty,
tax,
tay,
tsx,
txa,
txs,
tya,
};
@ -82,6 +86,7 @@ struct mos6502 : ASMLine
case OpCode::jmp:
case OpCode::jsr:
case OpCode::lda:
case OpCode::ldx:
case OpCode::ldy:
case OpCode::lsr:
case OpCode::ORA:
@ -96,9 +101,12 @@ struct mos6502 : ASMLine
case OpCode::sec:
case OpCode::sta:
case OpCode::sty:
case OpCode::stx:
case OpCode::tax:
case OpCode::tay:
case OpCode::tsx:
case OpCode::txa:
case OpCode::txs:
case OpCode::tya:
case OpCode::unknown:
@ -130,6 +138,7 @@ struct mos6502 : ASMLine
case OpCode::jmp:
case OpCode::jsr:
case OpCode::lda:
case OpCode::ldx:
case OpCode::ldy:
case OpCode::lsr:
case OpCode::ORA:
@ -143,10 +152,13 @@ struct mos6502 : ASMLine
case OpCode::sbc:
case OpCode::sec:
case OpCode::sta:
case OpCode::stx:
case OpCode::sty:
case OpCode::tax:
case OpCode::tay:
case OpCode::tsx:
case OpCode::txa:
case OpCode::txs:
case OpCode::tya:
case OpCode::unknown:
break;
@ -176,15 +188,19 @@ struct mos6502 : ASMLine
case OpCode::lda: return "lda";
case OpCode::asl: return "asl";
case OpCode::rol: return "rol";
case OpCode::ldx: return "ldx";
case OpCode::ldy: return "ldy";
case OpCode::tay: return "tay";
case OpCode::tya: return "tya";
case OpCode::tax: return "tax";
case OpCode::tsx: return "tsx";
case OpCode::txa: return "txa";
case OpCode::txs: return "txs";
case OpCode::cpy: return "cpy";
case OpCode::eor: return "eor";
case OpCode::sta: return "sta";
case OpCode::sty: return "sty";
case OpCode::stx: return "stx";
case OpCode::pha: return "pha";
case OpCode::pla: return "pla";
case OpCode::php: return "php";