AnachronautandClaude Opus 5
19ab36a201
-S writes every label and the address it was given, in address order. Nothing else knows that. A program on the disk is bytes; the monitor can disassemble it but has no idea what any of it is called. So counting which addresses a program calls says a great deal and names nothing - the answer arrives as a column of numbers and somebody works out by hand which routine each one is inside. It was deferred when the native assembler was planned, as a listing and symbol dump nobody needed yet. Finding out where the assembler spends its time is what needed it: the top six call targets were addresses until this existed and are numStep, numCompare, tokGet, srcNext, numAddByte and clsSameName with it. Sorted by address rather than by name, because the question asked of it is always "what is at this address". Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01E2JrLzFvuFX9fgi1LDRjrW
63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
// secondPass.c
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// Functions for the 'second pass' of the SplitBit Assembler.
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// Written by Anachronaut
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// 10/25/2024
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#ifndef SECONDPASS_H
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#define SECONDPASS_H
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#include <stdint.h>
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#include <ctype.h>
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#include "Assm-util.h"
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// Every label in a program and in everything it includes shares one table, because they
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// share one namespace: a name may only be defined once across the whole assembly. So this
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// is not the size of one file but the size of a program and its libraries together, and
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// CosmOS with its four libraries went past 256 while still being a small system.
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#define MAX_LABELS 1024
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#define MAX_VECTORS 256
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typedef struct {
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char* label;
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uint16_t address;
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int type;
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} Label;
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// Every label and the address it was given, in address order, so that a tally of
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// addresses can be turned back into a list of routine names.
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void writeSymbolFile(const char *path);
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// One line of the Vector Segment, once it has been worked out.
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typedef struct {
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char* name; // What it was called, or NULL for a device, which is named by its port.
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uint8_t index; // Which vector in its table.
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uint16_t base; // Which table: software or hardware.
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uint16_t handler; // Where the handler ended up.
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int declaredOnly; // Named and numbered, with nobody implementing it here.
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} VectorEntry;
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void freeLabelList();
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void freeVectorList();
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// Reads the Vector Segment: allocates a number to every named vector, works out which
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// vector each device line means, and resolves the handlers. Runs after the labels are
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// known, because a handler is named by its label.
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void populateVectorTable(intermediateElement *intermediateArray, int arraySize);
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// Turns each vector name used as an operand of SWI into the number it was given.
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void fillInVectorReferences(intermediateElement *intermediateArray, int arraySize);
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int vectorCount();
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void populateLabelTable(intermediateElement *intermediateArray, int arraySize);
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void fillInLabelAddresses(intermediateElement *intermediateArray, int arraySize);
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void populateOutputBuffers(intermediateElement *intermediateArray, int arraySize, uint8_t *Program, int *programCount, uint8_t *Data, int *dataCount);
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void writeOutputFile(const char *outputFileName, uint8_t *Program, int programCount, uint8_t *Data, int dataCount);
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#endif
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