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-rw-r--r--src/assembler_ops.py117
1 files changed, 69 insertions, 48 deletions
diff --git a/src/assembler_ops.py b/src/assembler_ops.py
index 2313bfd..e4eeac4 100644
--- a/src/assembler_ops.py
+++ b/src/assembler_ops.py
@@ -4,115 +4,114 @@ from dataclasses import dataclass
@dataclass
class Options:
- stack_pointer = "RG"
- csr_scratch = "RF"
+ stack_pointer = "rg"
+ csr_scratch = "rf"
@dataclass
class Meta:
address: int
- options: Options
-def make_alr(meta: Meta, alu_op: str, left: str, right: str, target: str) -> list[int]:
+def make_alr(meta: Meta, labels: Labels, alu_op: str, left: str, right: str, target: str) -> int:
"""ALR 0000 TTTL LLRR RSSS"""
- target_e = eval_expr(target, bits=3)
- left_e = eval_expr(left, bits=3)
- right_e = eval_expr(right, bits=3)
- alu_op_e = eval_expr(alu_op, bits=3)
+ target_e = eval_expr(labels, target, bits=3)
+ left_e = eval_expr(labels, left, bits=3)
+ right_e = eval_expr(labels, right, bits=3)
+ alu_op_e = eval_expr(labels, alu_op, bits=3)
word = (0b0000 << 12) + \
(target_e << 9) + \
(left_e << 6) + \
(right_e << 3) + \
alu_op_e
- return [word]
+ return word
-def make_ali(meta: Meta, alu_op: str, left: str, imm: str, target: str) -> list[int]:
+def make_ali(meta: Meta, labels: Labels, alu_op: str, left: str, imm: str, target: str) -> int:
"""ALI 0001 TTTL LLII ISSS"""
- target_e = eval_expr(target, bits=3)
- left_e = eval_expr(left, bits=3)
- imm_e = eval_expr(imm, bits=3)
- alu_op_e = eval_expr(alu_op, bits=3)
+ target_e = eval_expr(labels, target, bits=3)
+ left_e = eval_expr(labels, left, bits=3)
+ imm_e = eval_expr(labels, imm, bits=3)
+ alu_op_e = eval_expr(labels, alu_op, bits=3)
word = (0b0001 << 12) + \
(target_e << 9) + \
(left_e << 6) + \
(imm_e << 3) + \
alu_op_e
- return [word]
+ return word
-def make_ldr(meta: Meta, to_reg: str, addr_reg: str) -> list[int]:
+def make_ldr(meta: Meta, labels: Labels, to_reg: str, addr_reg: str) -> int:
"""LDR 0010 TTTR RRXX XXXX"""
- to_reg_e = eval_expr(to_reg, bits=3)
- addr_reg_e = eval_expr(addr_reg, bits=3)
+ to_reg_e = eval_expr(labels, to_reg, bits=3)
+ addr_reg_e = eval_expr(labels, addr_reg, bits=3)
word = (0b0010 << 12) + \
(to_reg_e << 9) + \
(addr_reg_e << 6)
- return [word]
+ return word
-def make_str(meta: Meta, from_reg: str, addr_reg: str) -> list[int]:
+def make_str(meta: Meta, labels: Labels, from_reg: str, addr_reg: str) -> int:
"""STR 0011 TTTR RRXX XXXX"""
- from_reg_e = eval_expr(from_reg, bits=3)
- addr_reg_e = eval_expr(addr_reg, bits=3)
+ from_reg_e = eval_expr(labels, from_reg, bits=3)
+ addr_reg_e = eval_expr(labels, addr_reg, bits=3)
word = (0b0011 << 12) + \
(from_reg_e << 9) + \
(addr_reg_e << 6)
- return [word]
+ return word
-def make_ldi(meta: Meta, to_reg: str, imm: str) -> list[int]:
+def make_ldi(meta: Meta, labels: Labels, to_reg: str, imm: str) -> int:
"""LDI 0100 TTTI IIII IIII"""
- to_reg_e = eval_expr(to_reg, bits=3)
- imm_e = eval_expr(imm, bits=9)
+ to_reg_e = eval_expr(labels, to_reg, bits=3)
+ imm_e = eval_expr(labels, imm, bits=9)
word = (0b0100 << 12) + \
(to_reg_e << 9) + \
imm_e
- return [word]
+ return word
-def make_jpr(meta: Meta, addr_reg: str) -> list[int]:
+def make_jpr(meta: Meta, labels: Labels, addr_reg: str) -> int:
"""JPR 0101 XXXR RRXX XXXX"""
- addr_reg_e = eval_expr(addr_reg, bits=3)
+ addr_reg_e = eval_expr(labels, addr_reg, bits=3)
word = (0b0101 << 12) + \
(addr_reg_e << 6)
- return [word]
+ return word
-def make_jpi(meta: Meta, imm: str) -> list[int]:
+def make_jpi(meta: Meta, labels: Labels, imm: str) -> int:
"""JPI 0110 XXXI IIII IIII"""
- imm_e = eval_expr(imm, bits=9)
+ imm_e = eval_expr(labels, imm, bits=9)
imm_e = imm_e - meta.address - 1
word = (0b0110 << 12) + \
imm_e
- return [word]
+ return word
-def make_brr(meta: Meta, flag_s: str, addr_reg: str) -> list[int]:
+def make_brr(meta: Meta, labels: Labels, flag_s: str, addr_reg: str) -> int:
"""brr 0111 XFFR RRXX XXXX"""
- flag_s_e = eval_expr(flag_s, bits=2)
- addr_reg_e = eval_expr(addr_reg, bits=3)
+ flag_s_e = eval_expr(labels, flag_s, bits=2)
+ addr_reg_e = eval_expr(labels, addr_reg, bits=3)
word = (0b0111 << 12) + \
(flag_s_e << 9) + \
(addr_reg_e << 6)
- return [word]
+ return word
-def make_bri(meta: Meta, flag_s: str, imm: str) -> list[int]:
+def make_bri(meta: Meta, labels: Labels, flag_s: str, imm: str) -> int:
"""BRI 1000 XFFI IIII IIII"""
- flag_s_e = eval_expr(flag_s, bits=2)
- imm_e = eval_expr(imm, bits=9)
+ flag_s_e = eval_expr(labels, flag_s, bits=2)
+ imm_e = eval_expr(labels, imm, bits=9)
imm_e = imm_e - meta.address - 1
word = (0b1000 << 12) + \
(flag_s_e << 9) + \
imm_e
- return [word]
+ return word
-def make_lpc(meta: Meta, target: str) -> list[int]:
+def make_lpc(meta: Meta, labels: Labels, target: str) -> int:
"""LPC 1001 TTTX XXXX XXXX"""
- target_e = eval_expr(target, bits=3)
+ target_e = eval_expr(labels, target, bits=3)
word = (0b1001 << 12) + \
(target_e << 9)
- return [word]
+ return word
-def make_hlt(meta: Meta, ) -> list[int]:
+def make_hlt(meta: Meta, labels: Labels) -> int:
"""HLT 1111 XXXX XXXX XXXX"""
word = (0b1111 << 12)
- return [word]
+ return word
-operations: dict[str, Callable[..., list[int]]] = {
- "alr": make_alr,
+OpWordDict = dict[str, Callable[..., int]]
+operations: OpWordDict = {
"alr": make_alr,
"ali": make_ali,
"ldr": make_ldr,
@@ -125,3 +124,25 @@ operations: dict[str, Callable[..., list[int]]] = {
"lpc": make_lpc,
"hlt": make_hlt,
}
+
+ExpandResult = list[list[str]]
+ExpandFn = Callable[..., ExpandResult]
+OpExpansionDict = dict[str, ExpandFn]
+
+def expand_id(*parts: str) -> ExpandResult:
+ return [list(parts)]
+
+default_expansions: OpExpansionDict = {
+ "alr": lambda *args: expand_id("alr", *args),
+ "ali": lambda *args: expand_id("ali", *args),
+ "ldr": lambda *args: expand_id("ldr", *args),
+ "str": lambda *args: expand_id("str", *args),
+ "ldi": lambda *args: expand_id("ldi", *args),
+ "jpr": lambda *args: expand_id("jpr", *args),
+ "jpi": lambda *args: expand_id("jpi", *args),
+ "brr": lambda *args: expand_id("brr", *args),
+ "bri": lambda *args: expand_id("bri", *args),
+ "lpc": lambda *args: expand_id("lpc", *args),
+ "hlt": lambda *args: expand_id("hlt", *args),
+}
+

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