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pgm: properly pass shell args in HL

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This commit is contained in:
Virgil Dupras 2019-06-03 08:56:39 -04:00
parent ecbb77072e
commit a48a91c8da
1 changed files with 6 additions and 1 deletions
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7
kernel/pgm.asm
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@ -35,16 +35,19 @@ pgmShellHook:
call fsFindFN call fsFindFN
jr nz, .noFile jr nz, .noFile
; We have a file! Load it and run it. ; We have a file! Load it and run it.
ex de, hl ; but first, make HL point to unparsed args.
jp pgmRun jp pgmRun
.noFile: .noFile:
ld a, SHELL_ERR_IO_ERROR ld a, SHELL_ERR_IO_ERROR
ret ret
; Loads code in file that FS_PTR is currently pointing at and place it in ; Loads code in file that FS_PTR is currently pointing at and place it in
; PGM_CODEADDR. Then, jump to PGM_CODEADDR. ; PGM_CODEADDR. Then, jump to PGM_CODEADDR. We expect HL to point to unparsed
; arguments being given to the program.
pgmRun: pgmRun:
call fsIsValid call fsIsValid
jr nz, .ioError jr nz, .ioError
push hl ; unparsed args
ld ix, FS_HANDLES ld ix, FS_HANDLES
call fsOpen call fsOpen
ld hl, PGM_CODEADDR ld hl, PGM_CODEADDR
@ -53,6 +56,8 @@ pgmRun:
ld (hl), a ; Z preserved ld (hl), a ; Z preserved
inc hl ; Z preserved in 16-bit inc hl ; Z preserved in 16-bit
jr z, .loop jr z, .loop
pop hl ; recall args
; ready to jump! ; ready to jump!
jp PGM_CODEADDR jp PGM_CODEADDR