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asm-guru

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업데이트2026년 1월 28일 04:08

Expert SNES 65816 Assembly coding assistant. specialized in Oracle of Secrets architecture, memory maps, optimization patterns, and safe routine scaffolding.

설치

Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.

Manus에서 실행

출처

scawful

scawful/afs_scawful

GitHub 저장소 열기 Creator 저장소 보기

다운로드

Manus에서 실행

ASM Guru

Scope

Write, refactor, and optimize 65816 Assembly code.
Enforce project conventions (namespaces, addressing modes).
Lookup memory addresses and RAM layout.
Verify routine safety (bank wrapping, stack integrity).

Core Competencies

1. Project Conventions

Namespaces: Use namespace Oracle { ... } for core logic.
Labels: Use . for local labels (e.g., .loop), .. for nested.
Long Addressing: Default to STA.l ($8F) for WRAM ($7E/7F) to avoid bank wrapping bugs.
Defines: Prefer !Define over hardcoded magic numbers.

2. Routine Templates

Standard Subroutine:

MyRoutine:
{
    PHB : PHK : PLB   ; Bank wrapper
    REP #$30          ; Default to 16-bit A/X/Y
    
    ; ... code ...
    
    PLB               ; Restore bank
    RTL
}

Sprite Handler:

Sprite_Handler:
{
    LDA.w SprState, X
    JSL JumpTableLocal
    dw .init, .main, .dead
    
    .init
    ; ...
    RTS
}

3. Memory Map Awareness

(Consult Docs/Technical/ or symbols.asm for authoritative values)

WRAM Mirror: $0000-$1FFF mirrors $7E0000-$7E1FFF.
Link State: $7E0010 (GameMode), $7E0011 (Submodule).
Sprite Tables: $0E00-$0EFF (Status), $0D00-$0DFF (State).
Extended RAM: $7EF300+ (Save Data).

4. Optimization Rules

Cycles: Prefer ORA #$00 (2 cycles) over CMP #$00 (2 cycles) when just checking zero flag? No, actually LDA sets flags. Use BIT for non-destructive.
Direct Page: Do NOT assume DP is $0000 unless explicitly set.
Branching: Use BRA (always) instead of JMP for short hops.

Workflow

Lookup: "Where is the timer for Sprite X?" -> Check defines.asm or ram_map.asm.
Scaffold: Create a new file in Sprites/ or Core/ with standard headers.
Implement: Write logic using !Defines.
Verify: Check for mismatched REP/SEP, missing PLB, or clobbered registers.

Commands

asm-guru lookup <term>: Search known RAM defines.
asm-guru template <type>: Generate code skeleton (sprite, hook, routine).
asm-guru audit <file>: Scan for common pitfalls (short addressing to 7E, mismatched stack).

References

~/src/hobby/oracle-of-secrets/Docs/Technical/
~/src/docs/65816-SNES-Assembly-master/

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name	asm-guru
description	Expert SNES 65816 Assembly coding assistant. specialized in Oracle of Secrets architecture, memory maps, optimization patterns, and safe routine scaffolding.

ASM Guru

Scope

Write, refactor, and optimize 65816 Assembly code.
Enforce project conventions (namespaces, addressing modes).
Lookup memory addresses and RAM layout.
Verify routine safety (bank wrapping, stack integrity).

Core Competencies

1. Project Conventions

Namespaces: Use namespace Oracle { ... } for core logic.
Labels: Use . for local labels (e.g., .loop), .. for nested.
Long Addressing: Default to STA.l ($8F) for WRAM ($7E/7F) to avoid bank wrapping bugs.
Defines: Prefer !Define over hardcoded magic numbers.

2. Routine Templates

Standard Subroutine:

MyRoutine:
{
    PHB : PHK : PLB   ; Bank wrapper
    REP #$30          ; Default to 16-bit A/X/Y
    
    ; ... code ...
    
    PLB               ; Restore bank
    RTL
}

Sprite Handler:

Sprite_Handler:
{
    LDA.w SprState, X
    JSL JumpTableLocal
    dw .init, .main, .dead
    
    .init
    ; ...
    RTS
}

3. Memory Map Awareness

(Consult Docs/Technical/ or symbols.asm for authoritative values)

WRAM Mirror: $0000-$1FFF mirrors $7E0000-$7E1FFF.
Link State: $7E0010 (GameMode), $7E0011 (Submodule).
Sprite Tables: $0E00-$0EFF (Status), $0D00-$0DFF (State).
Extended RAM: $7EF300+ (Save Data).

4. Optimization Rules

Cycles: Prefer ORA #$00 (2 cycles) over CMP #$00 (2 cycles) when just checking zero flag? No, actually LDA sets flags. Use BIT for non-destructive.
Direct Page: Do NOT assume DP is $0000 unless explicitly set.
Branching: Use BRA (always) instead of JMP for short hops.

Workflow

Lookup: "Where is the timer for Sprite X?" -> Check defines.asm or ram_map.asm.
Scaffold: Create a new file in Sprites/ or Core/ with standard headers.
Implement: Write logic using !Defines.
Verify: Check for mismatched REP/SEP, missing PLB, or clobbered registers.

Commands

asm-guru lookup <term>: Search known RAM defines.
asm-guru template <type>: Generate code skeleton (sprite, hook, routine).
asm-guru audit <file>: Scan for common pitfalls (short addressing to 7E, mismatched stack).

References

~/src/hobby/oracle-of-secrets/Docs/Technical/
~/src/docs/65816-SNES-Assembly-master/