Add system-specific boot symbols and CPU instruction tests

Introduced symbol files for various Game Boy systems (CGB, AGB, MGB, SGB) to define boot sequences and functionalities. Included CPU instruction behavior tests, with detailed coverage of standard operations and interrupt handling. Added documentation for test execution and internal framework operations.
2025-05-02 17:33:07 +01:00
parent ae44d43175
commit 918c9020b5
74 changed files with 5037 additions and 7 deletions
--- a/cpu_instrs/source/05-op
+++ b/cpu_instrs/source/05-op
@@ -0,0 +1,98 @@
+; Tests BC/DE/HL arithmetic
+
+;.define PRINT_CHECKSUMS 1
+.include "shell.inc"
+.include "instr_test.s"
+     
+instrs:
+     .byte $0B,0,0     ; DEC  BC
+     .byte $1B,0,0     ; DEC  DE
+     .byte $2B,0,0     ; DEC  HL
+     .byte $03,0,0     ; INC  BC
+     .byte $13,0,0     ; INC  DE
+     .byte $23,0,0     ; INC  HL
+     .byte $09,0,0     ; ADD  HL,BC
+     .byte $19,0,0     ; ADD  HL,DE
+     .byte $29,0,0     ; ADD  HL,HL
+instrs_end:
+
+test_instr:
+     ld   c,$00
+     call test
+     ld   c,$10
+     call test
+     ld   c,$E0
+     call test
+     ld   c,$F0
+     call test
+     ret
+
+test:
+     ; Go through each value for HL
+     ld   hl,values
+hl_loop:
+     ld   e,(hl)
+     inc  hl
+     ld   d,(hl)
+     inc  hl
+     push hl
+     
+     ; Go through each value for BC, DE, A
+     ld   hl,values
+values_loop:
+     push bc
+     push de
+     push hl
+     
+     push de
+     push bc
+     
+     ; BC
+     ld   c,(hl)
+     inc  hl
+     ld   b,(hl)
+     inc  hl
+     
+     ; DE
+     ld   e,(hl)
+     inc  hl
+     ld   d,(hl)
+     inc  hl
+     
+     ; HL, AF
+     pop  af
+     ld   a,(hl)
+     pop  hl
+     
+;    call print_regs
+     jp   instr
+instr_done:
+     
+     ; Checksum registers
+     call checksum_af_bc_de_hl
+     
+     pop  hl
+     pop  de
+     pop  bc
+     inc  hl
+     inc  hl
+     ld   a,l
+     cp   <values_end
+     jr   nz,values_loop
+     
+     pop  hl
+     ld   a,l
+     cp   <values_end
+     jr   nz,hl_loop
+     
+     ret
+
+values:
+     .word $0000,$0001,$000F,$0010,$001F,$007F,$0080,$00FF
+     .word $0100,$0F00,$1F00,$1000,$7FFF,$8000,$FFFF
+values_end:
+     .word $0000,$0001,$000F,$0010,$001F,$007F,$0080,$00FF
+     .word $0100,$0F00,$1F00,$1000,$7FFF,$8000,$FFFF
+
+checksums:
+     .byte $C0,$A1,$36,$A3,$BE,$15,$B8,$2B,$9F,$93,$C6,$C2,$86,$C0,$07,$81,$0F,$75,$35,$38,$6B,$C7,$0A,$1B,$06,$68,$4B,$42,$64,$B4,$8C,$18,$FB,$6C,$31,$94,